International Journal of Multidisciplinary Research and Growth Evaluation
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Impacts of road constructions on ecological biodiversity and livelihood in Sierra Leone
Mohamed Exton Zoker 1*, Samuel Karim 2, Brima Kargbo 3, Raymond Kemoh 4, Lansana Denis Yorpoi 5
1, 3-5
School of Education, Mathematics and Integrated Sciences, Njala University, Freetown, Sierra Leone
2
Ernest Bai Koroma University of Science and Technology, Faculty of Social and Management Sciences, Sierra Leone
* Corresponding Author: Mohamed Exton Zoker
Article Info
ISSN (online): 2582-7138
Volume: 03
Issue: 03
May-June 2022
Received: 07-04-2022;
Accepted: 19-05-2022
Page No: 280-296
DOI:
https://doi.org/10.54660/anfo.
2022.3.3.18
Abstract
Humans are key players for the current unprecedented rate of biodiversity loss across the globe
with climate change, pollution and the loss, fragmentation, and degradation of habitat
(VITOUSEK et al 1997).
According to convention on biological diversity (C B D) in 2019, defines biodiversity as “the
variety of life on earth, including plants, animals and microorganisms, as well as the ecosystem
of which they are part. Biodiversity includes genetic differences within species, the diversity of
species and the variety of ecosystem.
The development and presence of roads infrastructures is the major indicator of economic
growth. Research has shown that several important indicators of economy like trade, electricity,
communication, health are positive correlated with the road infrastructure. Therefore any
government of a country considers it important to invest in road infrastructure for feature
prospect of the country with the best possible ways.
However, consequences of road construction cannot be neglected. Roads construction for
mobility and accessibility of people inevitably transforms natural habitat in to a sealed and
highly disturbed environment which always implies net loss of wild life habitat. The physical
encroachment on the land, gives rise to disturbance and barrier effects that contribute to the
overall habitat loss, fragmentation and degradation in Sierra Leone. Humans are changing the
original structure of ecological communities by roads infrastructure which increases the death
rate of species. This modification in earth ecological communities causes a compelling concern
for ecosystem diversity loss Sierra Leone, like most developing countries trying to construct
roads for mobility and accessibility.
Road construction projects undertaken by government or NGOs in Sierra Leone can reduce
landscape permeability. Therefore the fundamental changes in landscape structure have both
direct and indirect impacts on the conservation of species and biodiversity. The direct loss refers
to the reduction of the total area of an ecosystem caused by the presence of roads and its verges,
i.e. by the conversion of the original land cover into artificial surfaces. The indirect loss refers
to the effects such as the fragmentation (portioning of an ecosystem in to smaller and more
isolated patches), and the degradation of ecosystem induce by noise, air, water pollution,
artificial light. These effects cause and indirect loss of habitat in that, they reduce the capacity
of and ecosystem to sustain its original biodiversity.
It is explicit that, in Sierra Leone, most of the species are endangered as a result of road
constructions the use of bulldozers and other machines in the operation to level the land, clear
trees, and flatten the ground will destroy and displace many living organisms from their natural
habitat and change their entire ways of living. The process will unable organism to adapt to
drastic changes in their natural habitat.
Keywords: ecological biodiversity, livelihood, constructions, organism
Introduction
Biodiversity can refer to many things, and has many specific definitions. Convention on Biological Diversity (CBD) defines
biodiversity as “ The variability among living organisms from all sources including, inter alia, terrestrial, marine and other
aquatic ecosystems and the ecological complexities of which they are part, this includes diversity within species, between species
and of ecosystem” (Article 2 CBD, 1992).
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Government of sierra Leone considered it important to
undertake Roads construction project in Bo city owing to the
fact that Bo is the second largest city in sierra Leone by
landscape/geographical location. It is the capital and
administrative Centre of Bo District. However the ongoing
Roads construction by FRIST TRICON LTD and SALCOST
at some routes in Bo city such as Mattru road, baima road,
stock road, Bo Tinkonko road and Njala university toawama
compus main road has major effects on ecological
biodiversity and livelihood of people found along those
routes as it causes disturbance during construction and
pollution both from the road materials itself and from the
traffic of an established roads. Potential edge effects from
roads range from erosion and sediment deposition during
construction to pollution from the high way maintenance to
traffic. The physical presence of roads in the landscape
creates new communities, alter hydrological and dynamics,
and disrupts natural processes. The various biotic and abiotic
factors operate in synergetic way across several scales, and
cause not only an overall loss and isolation of plant
community, but also split up landscape in a literal sense. The
construction of roads will change natural habitats into a
sealed and highly disturbed environment.
Statement of the problem
The current loss of biodiversity and the related changes in the
environment are now faster than ever before in human history
and there is no sign of this process slowing down. So the
potential threats should be identified and their extent of
impact should be studied with it. In context of Sierra Leone,
lots of environmental problems can be cited out that emerged
out of developing transport infrastructures by neglecting the
environment. Biodiversity conservation mechanisms are
concentrated to reduce poaching, hunting and other illegal
activities and other threats are usually overlooked i.e. rural
road projects. Also the information known about the impacts
of road projects on biodiversity is very low. Gautam et al.
(2012). Road construction projects in Bo city are causing
biodiversity loss and environmental degradation. So it is
necessary to analyze the impact of these development
projects on biodiversity. The research attempts to investigate
the causes of ecological degradation, the effects of road
construction on ecological biodiversity and livelihood in Bo
city and finally to point out the national and international
ecological and biodiversity policies.
Aim of the study
The aim of this research work is to assess the effects of road
construction on ecological biodiversity and livelihood in Bo
city, southern Sierra Leone.
Research objectives
In order to achieve the general aim of this work, the
researcher will however needs,
To investigate the causes of ecological degradation.
To determine the effects of road construction on
ecological biodiversity
To find out the effects of road constructions on
livelihood on the residence of Bo city.
To point out the national and international ecological and
biodiversity policies.
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Research Questions
1. What are the causes of ecological degradation?
2. Are there any effects of road construction on ecological
biodiversity?
3. What are the national and international ecological and
biodiversity policies?
Significance of the study
The study is relevant for a number of reasons. First it will
serve as a source of information for further research and to
other researchers who are into similar or related studies of
roads construction. The study will also expand knowledge on
impact of road construction on ecological biodiversity.
Finally, the research would be useful to the ministry of
transportation and infrastructure, NGOS, and other
international organization in developing ecological
biodiversity policies.
Scope and Delimitation of the study
Even though the assessment on the effects of road
construction on ecological biodiversity and livelihood
involved the whole Bo city, researchers will be limited to
obtaining data from people who are staying closer to the
construction routes and who are directly affected by the
construction projects. Therefore searchers will focus on 500
respondents along the various routes in which construction is
ongoing, such as Baima road, Mattru road, Stock road and
Njala university Toawama compus main road.
Limitation of the study
As the research progressed, the researchers encountered
several challenges in the entire process. One of the limitations
of the study was the difficulty in acquiring data from
respondents due to the fact that they held a belief that
researchers were trying to make money.
There was also a problem of time in administering the
questionnaires to the respondents owing to the fact the
researchers considered 500 respondents in different locations
in which construction of roads is ongoing.
Definitions of Terms
1. Habitat- is the natural home or environment of an
animals, plants,or other organisms.
2. Biodiversity is the biological variety and variability of
life on earth.
3. Land degradation- the deterioration or loss of the
productive capacity of the soil for present and future.
4. Land fragmentation is a process by which large and
contiguous habitats get divided into smaller, isolated
patches of habitats.
Research questionnaires
1. Does road constructions impacts ecological biodiversity and livelihood?
If yes, state the reason
2. Are there any correlations of ecological conservation to
livelihood?
If yes, state the reason
3. What are the ominous activities of road construction that
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International Journal of Multidisciplinary Research and Growth Evaluation
4.
threatens ecology?
Does ecological policies plays crucial role to conserving
environment, and thereby enhancing livelihood?
If yes, state the reason
5. What is the knowledge base of ecological conservation
in Bo City?
6. Very strong, ii, Strong, iii. Fair, and iv. Poor
7. Does climate change adaptation drive has the ability to
strengthen ecological conservation?
If yes, state the reason
8. Are there probabilities of species getting into extinctions
as a result of threats to ecology in Bo City?
If yes, state the reason
9. How can the ecology be conserved?
10. Does modern techniques in ecological conservation
proves efficient and effective to enhancing a balanced
environment?
If yes, state the reason
11. What are the cost-benefit trade-off between road
constructions,
and
ecological
biodiversity
conservation?
Literature Review
Introduction
This chapter will be a review to assess the effect of road
construction on ecological biodiversity and livelihood in Bo
city. This section will also flow on the effort that has been
made by other scholars towards giving the causes of
ecological degradation, national and international ecological
biodiversity. It is also focused on published work from
journals, text books and e-books.
Causes of ecological degradation.
Ecological degradation refers to the loss of biodiversity
through depletion of resources such as air, water, soil, habitat
destruction, pollution, the destruction of ecosystems, the
extinction of wildlife, etc. The causes of degradation in
human-environment according to Ezeaku and Davidson
(2008) [28] could be attributed to a single or complex mix of
causes. While there are nature-induced factors, there are also
human-induced factors that contribute to environmental
resources degradation. According to the duo, the causes
include biogeophysical (natural) such as climate vagaries of
water and wind erosion; poor land use, inadequate land and
water management policies, deforestation/over-exploitation
of forest ecosystem services; socio-economic factors as it
relates to burgeoning human population in our contemporary
times (Ray and Ray, 2011) and also pollution/contamination
of land resources and institutional factors in the areas of
deficiency and/or inadequate land policies. Generally, the
anthropogenic causes of environmental degradation
according to Adejumobi (2017) [2] are increased urbanization
and population explosion, inadequate environmental
education, poverty and industrialization Other causes include
extensive and intensive mechanized and commercial farming
and salinization of agricultural land, indiscriminate harvest of
forest resources, excessive uses of natural resources, poor
urban planning, uncare attitude towards the environment and
its resources, incessant bush burning and so on (Jiboye and
Ogunshakin, 2011; Adeboyejo, 2017) [47, 2]
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Natural causes of ecological degradation
Natural causes include those factors relating to climate
change vagaries and surface erosion. According to Issaka and
Ashraf (2017) [37], having established that there is a
relationship impact of soil erosion and degradation on water
quality indicating the source of pollutants as anthropogenic
and industrial activities has concluded that erosion causes
both on-site and off-site effects on land and water bodies
thereby affecting its quality.
Land degradation is a major problem facing developing
countries and is projected to become an even more severe
constraint into the future (Chisholm and Dumsday, 1987;
Eckholm, 1976; USAID, 1979; Ward, 1979; Brown and
Wolf, 1984; Bennett, 1931; Barbier and Burgess, 1992;
Pimentel et al., 1995) [17 26, 10, 8, 4]. Some studies show that
nearly 80% of rangeland and dry land forest areas, 30% of
tropical forests and around 50% of all irrigated cropland in
developing countries are classified as degraded (Leonard et
al., 1989 [53]. Other studies also show that much existing (as
much as half) as well as potentially productive agricultural
land in developing countries is being lost through the
processes of land degradation and abandonment (Cleaver and
Schreiber, 1992; Barbier, 1997) [3, 5].
The effects of road construction on ecological biodiversity
Effects of road on biodiversity:
Roads have become a prominent landscape feature that we
use daily and in almost every environment imaginable
(Forman & Alexander, 1998). Yet little attention has been
paid to the associated edge effects of roads in the landscapes
in which they are embedded.
A major and increasing impact upon the environment is that
of roads and their associated vehicular traffic. The effect of
road upon the environment is complex, and includes
disturbance during construction, and pollution both from the
road material itself and from the traffic of an established road.
Potential edge effects from roads range from erosion and
sediment deposition during construction to pollution from the
highway maintenance to traffic.
Edge effects (alternations to habitat quality due to proximity
to the edge) are central influence over local biotic and abiotic
processes in the forested area. Furthermore, edge effects can
reduce the area of interior habitat by changing species
composition, temperature, moisture, light availability and
wind speed (Gysel, 1951; Chen et al., 1992, 1995; Euskirchen
et al., 2001). Edges often have higher species richness and
greater numbers of exotic species (Ranney et al., 1981;
Brothers & Spingarn, 1992), potentially altering ecosystem
processes and functions such as productivity near the edge
(Laurance et al., 1997).
Roads cause both a direct and an indirect loss of habitat. The
direct loss refers to the reduction of the total area of an
ecosystem caused by the presence of the road and its verges,
i.e., by the conversion of the original land cover (e.g. wood
land, grassland, wetland, etc.) into an artificial surface. The
indirect loss refers to effects such as the fragmentation (i.e.,
the portioning of an ecosystem into smaller and more isolated
patches) and the degradation of ecosystems (i.e., the
biophysical alteration of an ecosystem induced by noise, air
and water pollution, artificial light, etc.). These effects cause
an indirect loss of habitat in that they reduce the capability of
an ecosystem to sustain its original biodiversity.
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Ecological Conditions and Scale
Roads interact with ecosystems across a wide range of scales.
For example, at small scales, heavy metal molecules
accumulate in soils adjacent to roads. At intermediate scales,
roads disrupt soil structures and hydrological pathways and
alter plant and animal communities. At large scales (regions
to nation), roads alter migration patterns and increase spread
of exotic organisms. Many effects can occur at more than one
spatial scale (for example, effects on migration patterns). The
literature review in the next section documents effects of
roads on ecological conditions at three scales. Every aspect
of roads (as with many human activities) has some interaction
with the surrounding environment, including road
construction, operation, and maintenance. However, the
researcher’s review focuses on the construction that is, the
effects of roads and their structures (for example, culverts)
and vehicles that uses them.
Somlyody 1997, Ball et al. 1998) (Figure 3-2). Shaheen
(1975) examined urban roadway runoff and found that
although the more hazardous constituents in highway runoff
come directly from motor vehicles, they constitute less than
5% of the total solid pollutant load in highway runoff. These
components include organic materials, such as petroleum and
n-paraffin found in lubricants, antifreeze, and hydraulic
fluids; lead; copper; chromium; zinc; nickel; and asbestos.
Asbestos in brake linings was banned in 1989 (Shabecoff
1989), so vehicular sources of asbestos are minuscule,
although resuspension of previously deposited asbestos is
still a concern. In spite of the low contribution of constituents
originating from the vehicle itself, vehicular traffic volume
was identified as the principal factor influencing pollutant
mass in highway runoff. That might be because vehicles are
a transport mechanism as well as a source of pollution
(Asplund et al. 1982).
Abiotic consequences on road construction
Abiotic conditions that can be influenced by roads include
hydrological,
geomorphological,
and
chemical
characteristics and such disturbances as landslides, noise, and
light. In this section, the committee considers only changes
to the abiotic conditions themselves, and examples of each
are provided below. How these abiotic changes affect the
biota is considered in later sections.
Air Quality
Some studies also focused on the impact of vehicular
chemical pollutants on local air quality. The majority of these
studies examined the impact of vehicular traffic on the
presence or absence of volatile organic compounds (VOCs)
(Clifford et al. 1997, Tsai et al. 2002). Surprisingly few
studies have examined the effects of chemical pollutants at
the intermediate scale that could provide valuable
information on total area effects primarily in watersheds or
protected areas. Although most of the concern with roads and
air quality focuses on new emissions added by vehicle tailpipe emissions, suspendedss particles from traffic flow, dust
from roadside areas, and other fugitive (non-tail-pipe)
emissions are of concern.
Hydrological and Geomorphological Changes
Landscape changes result when roads alter the hydrological
and geomorphological aspects of watersheds and landscapes.
They can cause important changes (some for short periods,
others for longer periods) in fluvial dynamics, sediment
production, and chemical balances, which can adversely
affect floodplain functioning and alter ecological conditions
in aquatic and riparian areas. Roads also affect water
movements, sedimentation, and transport of pollutants.
Because they often interrupt or otherwise alter sheet flow and
runoff patterns, roads can affect the amount and quality of
water that goes to recharging groundwater (Forman et al.
2003; NRC 1996, 2004), and they can affect surface waters
in many ways. Because road embankments trap dust and dirt
and they face the low winter sun at an angle, they can
accelerate snowmelt (NRC 2003). Roads and associated
ditches can become part of hydrological networks (Forman et
al. 2003).
Chemical effects of road construction
Water quality
The most observable abiotic environmental consequence of
roads is the contribution of motor vehicles on paved roads to
water pollution. However, this contribution cannot be
disassociated from the surrounding land use. The largest
number of studies reporting on the chemical characteristics
of road effects focus on the chemical effects arising from
rainfall events at the single-segment scale (FHWA 1981;
Asplund et al. 1982; Gjessing et al. 1984; Kerri et al. 1985;
Lord 1985; Yousef et al. 1985; Barrett et al. 1995, 1998;
Sansalone et al. 1995; Lopes and Dionne 1998; Wu et al.
1998). Water quality is adversely affected by pollutants
present in surface runoff and the atmosphere. Pollutants that
accumulate on roadways from spills, wastes generated during
vehicle use, litter, and adjacent land uses enter waterways via
surface runoff.
(Forman et al. 2003, Hahn and Pfeifer 1994, Buzas and
Biotic Consequences of roads construction.
Roads can have biotic effects on the genetics of populations,
on species, and on ecosystems, and their effects can
accumulate over space and time (e.g., NRC 2003). The
framework prepared by the Environmental Protection
Agency (EPA) is also a helpful way to conceptualize the
ecological effects that roads can have. In general, their effects
can operate through a variety of ecological mechanisms. The
biotic consequences of the following effects of roads are
considered below: direct effects include roads as barriers,
road kill, and effects on habitats; indirect effects include
results of the access that roads provide to previously
inaccessible areas, changes in water and air quality, and
effects of lighting and noise.
Roads as Barriers
Roads can impede animal movements by direct mortality or
avoidance behavior. The barrier effect varies between
species, road types, and adjacent habitat quality; however,
traffic volume and speed strongly influence the effect. Some
authors have suggested that divided highways with 90 m of
cleared areas as barriers are as effective as bodies of water
twice as wide in obstructing dispersal of small forest
mammals (Werner 1956, Sheppe 1965). The barrier effect for
some species is less related to traffic than to habitat changes
(road-forest edges and gap creation caused by roads). Small
road clearances (less than 5 m) can impede movement of
certain small mammals. For example, road crossing by small
mammals was inversely related to road width in Australia
(Barnett et al. 1978), and small barriers to the movement of
wildlife can lead to fragmentation of populations. Isolation
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caused by physical barriers to movement, such as roads, may
reduce gene flow, thus causing genetic effects (Slatkin 1987)
that in the extreme could result in local extirpation.
Road kill
Road kill can have demographic consequences for some
species of wildlife (Maehr et al. 1991, Jones 2000). Roads
and traffic can reduce wildlife population densities and
ultimately affect the survival probability of local populations.
Traffic-related mortality has contributed to the decline of
several species: Eurasian badger (Meles meles) (Bekker and
Canters 1997) and moor frog (Rana arvalis) (Vos and
Chardon 1998) in The Netherlands, Hermann’s tortoise
(Testudo hermannii) (Guyot and Clobert 1997) in southern
France, and Florida panther (Felis concolor coryi) (Maehr et
al. 1991) are some examples. Road networks also particularly
affect wide-ranging carnivore species (Maehr et al. 1991,
Brandenburg 1996). Metapopulation theory suggests that
more mobile species are better able to manage with habitat
loss (Hanski 1999). Yet mortality of individuals in the matrix
habitat (for example, road corridors) does not typically figure
into metapopulation theory. Studies show that when mortality
is high in the matrix habitat; highly mobile species are
actually more vulnerable to habitat loss (Carr and Fahrig
2001, Gibbs and Shriver 2002). (Fowle 1996).
Habitat Effects
Roads construction inevitably transforms natural habitat into
a sealed and highly disturbed environment which always
implies a net loss of wildlife habitat. The physical
encroachment on the land gives rise to disturbance and barrier
effects that contribute to the overall habitat loss,
fragmentation and degradation. These modifications in earth
ecological communities cause a compelling concern for
ecosystem diversity loss.
Roads have large, widespread effects on aquatic habitats
(NRC 1996, 2004; Forman et al. 2003). When roads fail,
landslides and torrents of water-borne debris can have serious
adverse effects on stream habitats (NRC 1996). Roads and
their associated structures, such as bridges, culverts, and
berms, modify stream flows and sediment transport and often
make passage for aquatic organisms more difficult or even
impossible (NRC 1996, 2004; Forman et al. 2003; Warren
and Pardew 1998; Schaefer et al. 2003). Because paved roads
(and to a lesser degree, unpaved roads) are impervious, they
increase runoff and otherwise alter hydrological patterns.
Finally, they often interrupt the connectivity of aquatic
ecosystems, although by providing new networks of aquatic
systems, for example, in long ditches, they can enhance
connectivity as well (Forman et al. 2003). Fragmentation
effects of roads, as part of the cumulative effects of many
factors, can strongly influence the distribution and land-use
patterns of wide-ranging and migratory wildlife (Ward 1982,
Noss et al. 1996).
The effect of road construction on livelihood
Positive effects of roads construction on livelihood.
The development and presence of road infrastructures in Bo
city is a major indicator of economic growth. Research has
shown that several important indicators of economy like
trade, electricity, communication and health are positive
correlated with the road infrastructure. Therefore any
government of a country consider it important to invest in
road infrastructure for future prospect of the country with the
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best possible way. The roads construction project in Bo city
will benefit the people in diverse ways, such as easy
movement and accessibility of people. However the
consequences of roads construction cannot be neglected as it
stated below.
Displacement of Business places
Road infrastructures in a town or city have a major effect on
traders who are closest to the sites. During the construction
phase some businesses were displaced. The business
experience a significant impact when they are removed or
relocated. The traders may have difficulty in obtaining
suitable relocation sites; they may lose clients, and, upon
relocation, may incur additional costs to re-establish.
Impacts on Residents
During the construction phase, residents may be disrupted
and inconvenienced by detours, local road closures, dust,
noise, and heavy equipment traffic on existing roads, changes
in the level of service, safety hazards, and interference with
emergency services. Occasionally, there is vibration damage
to near-by structures. However, residents may benefit from
construction employment. When the roadway is opened for
use, positive impacts result for many residents. Travel time,
petrol consumption, accidents and inconvenience to users
generally decrease. The roadway increases access to jobs,
schools, stores, recreation and other community services and
amenities. These effects can be reflected in increased land
values. However, there may be negative impacts for some
residents living near the roadway. These include increased
noise, pollution and aesthetic impacts.
National and international ecological biodiversity policies
National policies on ecological diversity
The perennial problem of weak law enforcement has been a
key factor affecting the conservation of species, habitats and
ecosystems in Sierra Leone. Some NBSAP 2002- 2010
interventions have come from the willingness by government
to improve on policy and legislations that would ensure
effective law enforcement. These include the following
legislative and policy interventions:
1. 2008–The Environment Protection Agency Act, which
brought into existence the EPASL. This agency now
controls and coordinates all activities, business and
development programmes that impinge on the
environment. It is now one of the most powerful agencies
of government hosted in the Office of the President.
2. 2010 – The Review of Forestry and Wildlife policies,
respectively with the aim of ensuring that these two key
components of the functions of the Forestry Division of
MAFFS are effective and creating the desired impacts.
These two policies also focus the importance of building
community consensus through education and
management approaches in conservation biodiversity.
3. 2012 – The National Protected Area Authority Act,
which brought into existence the National Protected
Areas Authority as a statutory body that manages,
coordinates, and promote the operations of protected
areas in the country. Its mandates also include the
identification of areas that can potentially be designated
for protection as well as mobilising the funds for the
conservation of protected areas including REDD+
initiatives.
4. 2015 – The Review of the Wildlife Conservation Act of
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1972 (WCA) and the orestry Act of 1998. This process
was funded by the World Bank under the Sierra Leone
Biodiversity Conservation Project (SLBCP) which
ended in December 2015. The review of the WCA,
among other things addressed the issues of out-dated
fines and the inclusion of the legal protection of species
that are listed in the IUCN Red List and all other species
of national conservation interest. Both reviewed acts
await ratification by the parliament
2015-Drafting of the Wetlands Conservation Act. This is one
of the key achievements of the Wetlands Conservation
Project, a subsidiary of the BCP. The Act now awaits
parliamentary enactment. In addition, the BCP developed a
National Wetlands Conservation Strategy and conducted a
national inventory of the country’s major wetlands as one of
the main key tools for the implementation of the Wetlands As
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a member of the international community, principally the
United Nations and the African Union, Sierra Leone is having
a fair share of the global decision making processes that affect
a wide range of local national and international issues,
including inter alia politics, environment and biodiversity.
The country’s contribution to addressing global
environmental and biodiversity issues is well recognised,
particularly as a founding signature of the African
Convention on the Conservation of Nature and Natural
Resources at its inception in 1968. Successive governments
have put environment and biodiversity issues at the forefront
of their policies and legislative actions, especially in terms of
working with other nations in addressing these and related
concerns. Among the many conventions and agreement
signed by the Government of Sierra Leone, those related to
biodiversity are outlined in Table 1; the dates of signing
and/or ratification are also given.
Table 1: List of convention and agreements signed and/or ratified by the government of Sierra Leone relevant to biodiversity
Since the mid-1980s, Sierra Leone has implemented
international wildlife regulations long before the signing of
CITES. In 1986, a presidential ban was imposed on the export
of wildlife and their trophies from the county because of the
indiscriminate wildlife exploitation for trade (particularly
chimpanzees and elephants). This ban was preceded by the
confiscation of twenty infant chimpanzees deem for
shipment, an action that wasinitiated by the WWF against a
major pharmaceutical company in Vienna, Austria. In
addition all border posts have stationed wildlife officers
whose function is to stem the smuggling of wildlife, trophies
and souvenirs out or into the country. Also, the Conservation
Society of Sierra Leone (CSSL) has been conducting regular
surveys of migratory water birds in collaboration with the
former Wildlife Branch of the Forestry Division, MAFFS;
these activities, which started in 1992, long before the signing
of the Ramsar Convention, are still on-going and are mainly
sponsored by Wetlands International and Wadden Sea
Initiative.
International policies on ecological biodiversity
At international level, the main legal instrument for
biodiversity protection is the Convention on Biological
Diversity (CBD). It three main objectives are the
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conservation of biological diversity; the sustainable use of the
components of biological diversity; and the fair and equitable
sharing of the benefits arising out of the utilisation of genetic
resources. This convention was negotiated under the auspices
of the United Nations Environment Programme (UNEP) in
Nairobi in 1992, and came into force on 29 December 1993.
The CBD now has 196 Parties:5 195 countries plus the
European Union, which has been a Party since the beginning.
The CBD is complemented by two major protocols. The
Cartagena Protocol on
Biosafety, which was adopted in 2000 and entered into force
in 2003, seeks to protect biodiversity from the potential risks
posed by living modified organisms resulting from modern
biotechnology. It refers to the precautionary principle and
establishes an 'advance informed agreement' procedure to
make sure countries can make informed decisions before
agreeing to import such organisms. The Nagoya Protocol,
which was adopted in 2010 and entered into force in 2014,
aims to create greater legal certainty and transparency for
both providers and users of genetic resources, by regulating
'bioprospecting' and by making sure benefits are shared fairly
among them. In practice, agreements concerning access to
genetic resources are expected to be signed between
biodiversity-rich (and often developing) countries, and
companies using the genetic resources, typically from more
advanced count.
EU Policy Framework.
The main legislative acts related to the protection of
biodiversity in the European Union are the Birds Directive
(2009/147/EC, which repealed the original Directive
79/409/EEC) and the Habitats Directive (92/43/EEC, most
recently modified in 2013). The aim of both directives
(sometimes called 'Nature Directives') is to contribute to the
conservation of natural habitats and species (wild fauna and
flora) in the EU. They are complemented by several other
pieces of legislation relating to the protection of biodiversity.
The Birds Directive aims to achieve good conservation status
for all wild bird species occurring naturally in the European
territory of the Member States. Recognising that habitat loss
and degradation are serious threats to wild bird conservation,
it protects habitats for endangered and migratory species by
establishing a coherent network of 'special protection areas'
(SPAs).
The Habitats Directive aims specifically to achieve
'favourable conservation status'14 for habitat types and
species deemed to be of Community interest. Under this
Directive, Member States must designate 'special areas of
conservation' (SACs) 15 and establish conservation
measures, which may include management plans. They are
required to carry out an appropriate impact assessment for
any plan or project likely to have an impact on a designated
site. In principle, a project can only be approved if it has no
negative impacts on the integrity of the site, although
exceptions are possible if there is an overriding public interest
and if alternative solutions do not exist, provided that
compensatory measures are taken. Member States must take
measures to ensure the strict protection of all plant and animal
species listed in the annexes to the Habitats Directive. They
must monitor the conservation status of habitats and species
and report to the Commission every six years.
A biodiversity strategy (COM (2011) 244), presented in 2011
by the Commission, sets a target for 2020 ('halting the loss of
biodiversity and the degradation of ecosystem services in the
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EU by 2020, and restoring them in so far as feasible') and a
vision for 2050 ('European Union biodiversity and the
ecosystem services it provides are protected, valued and
appropriately restored for biodiversity's intrinsic value and
for their essential contribution to human wellbeing and
economic prosperity.'). Trying to address the shortcomings of
the 2006 Biodiversity Action Plan,16 the biodiversity
strategy seeks to integrate some sectors such as agriculture,
forestry and fisheries, and to halt biodiversity loss outside
protected areas. It prioritises 20 actions grouped into six
targets: implementing the Nature Directives; maintaining and
restoring ecosystems and their services; increasing the
contribution of agriculture and forestry to biodiversity
protection; ensuring a sustainable use of fisheries; combatting
invasive alien species; and helping avert global biodiversity
loss. In October 2015, the Commission presented a mid-term
review of the biodiversity strategy (COM(2015)478).17 It
concluded that no significant progress had been made
towards reaching the headline target, as biodiversity loss and
ecosystem degradation have continued.
European parliament
In its Resolution of 20 April 2012 on 'Our Life Insurance, Our
Natural Capital: an EU Biodiversity Strategy to 2020'
(2011/2307(INI)), Parliament supported the EU biodiversity
strategy, including all its targets and actions, but indicated
that more concrete measures should be deployed to ensure
effective implementation of the strategy. It recognised that
NGOs have an important role to play in biodiversity
protection. It furthermore stressed the importance of
mainstreaming biodiversity in all EU policies and called on
the Commission and the Member States to identify all
existing environmentally harmful subsidies and to phase
these out by 2020. Lastly, Parliament called for at least €5.8
billion per year to be devoted to the Natura 2000 network
through EU and Member State funding.
Interaction with other EU policies
Interaction between biodiversity protection policy and other
EU policies can be complex, with a risk of reduction in policy
efficiency caused by sometimes conflicting policy goals. In
1999, the Treaty of Amsterdam introduced the requirement
to take environmental protection (including as regards
biodiversity) into account across all EU policies. This
principle is now enshrined in Article 11 TFEU, which
provides that 'environmental protection requirements must be
integrated into the definition and implementation of the
Union's policies and activities, in particular with a view to
promoting sustainable development'. As regards the Natura
2000 network specifically, the European Commission has
produced detailed guidance for Member States and
stakeholders on the implementation of the Habitats and Birds
Directives in various sectors.
Agriculture and forest policies
Biodiversity and agricultural systems in Europe are closely
interrelated, for three main reasons. First, agriculture is
dependent on ecosystem processes which support plant
production (e.g. pollination, maintenance of soils, regulation
of pests and diseases) and rely ultimately on biodiversity.
Second, many (semi-natural) European habitats have been
shaped by thousands of years of human activities, and depend
on traditional, extensive agricultural practices for their
existence. Third, many of the habitats and species protected
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under EU law are themselves dependent on agricultural
practices.
Biodiversity is declining as a result of land abandonment and
agricultural practices associated with intensive farming, such
as use of pesticides and artificial fertilisers, conventional
ploughing, overgrazing, drainage and irrigation. Biodiversity
loss may threaten the long-term sustainability of farming in
some areas as a result of the degradation of the ecosystem
services on which farming depends, including soil processes,
natural pest control, and pollination. The Commission
estimates the value of pollination services alone at €14 billion
per year in the EU, or 10% of agricultural productivity.
Forest policy
Forest policy also impacts on biodiversity protection, as
forests cover around 40% of EU land area. The EU's new
forest strategy (COM(2013) 659) calls for sustainable forest
management in order to address pressures on forest
ecosystems due to environmental changes (reduced water
availability, spread of invasive alien species, increased risk
of forest fires) and to human-induced changes (forest
fragmentation and over-exploitation of forest resources).
Biodiversity preservation, especially in Natura 2000 sites,
represents a cost for farm and forest owners and managers.
The main economic consequences are due to restrictions in
use value, to lower productivity and the labour-intensive
farming practices which generally characterise 'high nature
value' farmlands, and to additional administrative tasks and
costs (in particular information-gathering and supporting the
overall management of sites). Support schemes, such as those
introduced in the CAP, aim to preserve biodiversity outside
protected areas while preserving jobs and maintaining the
competitiveness of the EU farming and forestry sectors
against foreign counterparts which do not face the same
constraints.
Fisheries, marine and water policies
EU marine policies are closely interlinked with the health of
natural systems sustaining sea-related economic activities
and their ability to cope with pressure ('resilience'). Fisheries
impact marine biodiversity mainly through the depletion of a
species due to overfishing, the effects of unintentional
catches (called 'by-catch') on fish, sea mammals and sea
birds, and the creation of imbalances in marine food chains.
Aquaculture also interacts with the marine environment, just
like agriculture on land. Many factors influence the ultimate
impact of aquaculture on biodiversity, among others the
location of the f arm, the type of culture (fish, crustaceans,
molluscs, seaweed), and the methods used (e.g. quantity and
type of food, stock density, use of chemicals).
Regional policy
Regional policy (also known as 'cohesion policy'), the EU's
main investment policy, represents almost a third of the EU
budget and provides the investment framework to meet the
Europe 2020 strategy goals for smart, sustainable and
inclusive growth. Regional policy may seem at odds with
biodiversity protection policy, as economic development,
especially the building of new infrastructure, can contribute
to pressures on habitats and species.
However, EU regional policy provides direct funding
opportunities for nature protection and biodiversity.
Indirectly, funding is also available through synergies with a
wide range of policy areas (i.e. research, innovation, business
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development, employment, climate change mitigation and
adaptation).
Research Methodology
Introduction
The focus of this chapter is to discuss the methodology in
conducting and collecting data, clearly state the instruments,
tools for data analysis and presentation. Quantitative and
qualitative method of data collection will describe the
research instruments and tools being used to collect data. This
chapter has the following outline: study design, population
and sampling, sampling procedure, research instrument, and
procedure for data collection, method of data collection,
ethical consideration and summary.
Study design
According to Vincent, (2007) study design “is the plan,
structure and strategy of investigating, conceived so as to
obtain answer to questions and to control variables”. The
study design is commenced with survey design and case
study. As mentioned by Emory (1995) that a survey is
possible when the population and variable is small and hence
the researchers were able to cover all the elements of the
population. Therefore a survey is considered to be more
efficient and economical. Here, the study of individual units
and its surrounding environment within the case study, will
therefore, take into consideration in other to solicit more
information by making a proper and careful analysis of a
particular society or in other to shows a particular entity
which serves as the area for the case.
However, small sample within the case study is selected to
analyze the effects of road constructions on ecological
biodiversity and livelihood in Bo city will be the appropriate
tool in formulating and gathering the required information.
The study design will target respondent within the age of age
18yrs-25yrs, 26yrs-34yrs, 35yrs-42yrs and 43 yrs above. The
small sample will be chosen at random targeting equal
respondents of male and female, the analysis of data will be
statistical with an application survey of issuing questionnaire.
Study area
Bo, also commonly referred to as Bo Town, is the second
largest city in Sierra Leone by landscape/geographical
location (after Freetown) and the largest city in the Southern
Province. Bo is the capital and administrative Centre of Bo
District. The city of Bo had a population of 149,957 in the
2004 census. According to Sierra Leone population and
housing census the population in 2015, the population of Bo
city was about 173905 in which 84078 are males and 89827
are females. Bo city had a population of about 233,684 based
on 2017 estimate. Bo is an urban Centre, and lies
approximately 160 miles (250 km) eastsoutheast of
Freetown, and about 40 miles (71 km) to Kenema. Bo is the
leading financial, educational and economic Centre of
southern Sierra Leone. It has a Coordinates of 7°57′23″N
11°44′24″W. The city of Bo is one of Sierra Leone's six
municipalities and is locally governed by a directly elected
city council, known as the Bo City Council, headed by a
mayor. The Mayor and members of the Bo City Council are
directly elected every four years in a municipal election. The
city is the primary home of Njala University, the second
largest university in Sierra Leone, after the Fourah Bay
College. Bo is also home to the Bo Government Secondary
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ethnically diverse cities in Sierra Leone. The city is home to
a significant population of many of Sierra Leone's ethnic
groups, with no single ethnic group forming a majority. Bo is
the principal home of the Mende people, who form the
plurality of the city's population. The city's population is
religiously diverse, primarily among Muslims and Christians.
School, commonly known as Bo School, which is one of the
biggest and most prominent secondary schools in West
Africa. The school has a history of producing some of Sierra
Leone's most gifted students. The city is home to the Bo
Stadium, the second largest stadium in Sierra Leone, and is
mostly used for football matches. Bo is one of the most
Fig 1
Aerial Map of BO
Population and sample of the study
Target population
Ezejule and Ogwo, (2009) target population is “that group
usually of people or things, set of individuals, objects of
measurements about whom you want to be able to draw
conclusion”. However, the population of the study in this
research consisted of petty traders, bike riders, and the
workers engaging on the Bo city roads construction project.
The population of the study is five hundred (500) this will
determine the sample size of the research.
Sample size
According to Ezejule and Ogwo (2011) a sample size is “the
total number of elements of the population that are selected
for a closer study”. Therefore, the researcher used random
sampling method to select four hundred (400) respondents in
which fifty (50), two hundred and fifty (250), and one
hundred (100) are workers, petty traders and customers and
bike riders respectively. These targeted respondents will
answer to questionnaire that has being administered to them
which will be presented representing the views of the larger
population. The simple size will answer questions that are
related to the research objectives in particular. The
respondent targeted are within the age of 18-43 years above.
Table 2
Respondents Units
Construction staff
Bike riders
Petty traders and Customers
Total
Number of Respondents
50
100
250
400
Sampling procedure
In this study, simple random sampling will be adopted. This
technique refers to the act of selecting respondents from a
specific population without any form of bias or segregation
base on class, status or standings. It shows a clear picture on
how the tools are used in conducting and collecting data.
Information obtained is quantitative and qualitative data, one
is represented by the use of interviews (qualitative) and the
other is represented by questionnaires (quantitative).
Data collection tools
The researcher uses the following tools in gathering relevant
and required information for the research study.
1. Questionnaire: According to Kreintner, (2013)
questionnaire is “a collection of items to which a
respondent is expected to react using writing”. Accurate
questionnaires are design by the researcher for
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2.
respondents to answers questions relating to the research
study. The main purpose is for participants to answer
question in the form of writing not oral. This tool enables
respondents to accurately give information that are
relevant for the study.
Interview: According to Dessler, (2015) interview is a
technique designed to get information from a person’s
voiced response to oral investigation. The researcher
implemented personal interview i.e. structured and semi
structured. This aspect is included because other
respondent’s level of education is low, so therefore it is
a useful tool for the study. The instruments used were
helpful because it helps to gather essential information in
writing (questionnaire) and oral (face-to-face interview).
Validation
Validity of instrument
Muijh, (2004: 67) state that validity is probably the single
most important aspect of the design of any measurement of
the instrument educational research. It can be conclude that
validity is the process that refers to how well the test
measures what it is purported to measure. However good our
research design statistical analyses, the results will be
meaningless if the researchers aren’t actually measuring what
the researcher is purposing to measure. According to latif,
(2011: 223) valid means correct. It means that when the
researcher claim that the result on effects of roads
constructions on ecological biodiversity is valid, the
researchers convinced that the writing assessment result
correctly reflects the effects of roads construction on
ecological biodiversity and livelihood in Bo city. The
researcher seek to maintain validity and accuracy in the
research process, with at co-efficient of at least 0.75 or 75%.
According to Trivon, (2013) quality control is “the extents to
which results are accurately interpreted and generalized into
other population while reliability means the extent to which
data is authentic”.
Validity is very important because one of main characteristic
of test, without having this characteristic a test is not
important.
Reliability of instrument
While validity refers to degree of correctness of the
assessment on the effects of roads constructions on ecological
biodiversity. Reliability can be thought of as consistency.
It means that, reliability of instrument is needed to make sure
that the instrument can be consistent if used in other time.
Therefore, the instrument as questionnaires is reliable.
In this case, the questionnaires were pre-tested in the study
area to ascertain the relevance of the questions posted.
Procedures for data collection
In order for the research to be holistic and adequate, during
the research, structured questionnaires were used to obtain
quantitative data from each of the respondents selected
included in the sample. The questionnaires were pre-tested in
the study area to ascertain the relevance of the questions
posted. The number of completed questionnaires returned
was recorded. A high response rate of respondents was
recorded.
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Method of data collection
The study used primary and secondary sources of data
collection method. Data was collected through a selfadministered questionnaire that consisted of both open and
closed ended questions that were designed to extract specific
responses for qualitative and quantitative analysis
respectively. Information was solicited from construction
staff, petty traders and customers, and bike riders that closest
to the construction routes.
Data analysis
According to Awotunde, (2006) data analysis is “a method of
scrutinizing data using different tools such as tables, charts
and other figures for easy interpretation”. However, the
researcher analyses data using table and in percentage for
accuracy and consistency throughout the research work.
Ethical consideration
The ethical implication of the study is that of the principle of
informed consent. The principle of informed consent
generally means getting the respondent aware before the
collection of data. These sometimes cause respondents not to
participate. In other to handle this problem, the researcher
should inform the respondents or participant, explaining the
objectives of the study which upon acceptance respondents
will give condition as to how information should be gathered
or collected. The researcher ensures the privacy and
confidentiality of the information gathered. The information
gathered was kept away from third party i.e. the researcher
does not discussed the information gathered from
respondents to third party. Although there are many
challenges faced by the researcher in gathering information
from respondents, one is ethical predicaments which are
confidentiality.
Summary
The importance of this chapter is to identify and assemble the
necessary tools in carry out the research process. There are
many challenges despite the research was well tailored. The
challenging situation was obtaining primary source of data
from respondents, it was difficult to access information from
the construction staff, Bike riders and petty traders.
The aim of the research is to assess the effects of roads
constructions in Sierra Leone using the Bo city as a case
study. Is achieving such aim, the researcher analyse and
present data in tabular form and in percentage.
Presentation, interpretation and data analysis
Introduction
This chapter presents the data analysis results, as well as
interpretation and discussion of findings. The study had four
objectives: To investigate the causes of ecological
degradation; to determine the effects of road construction on
ecological biodiversity; to find out the effects of road
constructions on livelihood on the residence of Bo city; and
to point out the national and international ecological and
biodiversity policies. Data analysis was done using
frequencies, percentages and results are presented in tables.
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Response rate
The study targeted the municipality of Bo; Sierra Leone with
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a sample size of four hundred respondents. The table below
presents the response rate of respondents.
Table 3: Response rate
Population of the study (Questionnaire distributed)
500
Respondents
Source: Field data 2022
Targeted population (Questionnaire Received) Response rate
400
80%
female representing 25%. This clearly indicates that more of
the respondents were male.
Table 5: Marital status of respondents
Marital status
Frequency (F)
Married
150
Single
200
Divorced
20
Widow
17
Widower
13
Total
400
Source: field data 2022
Fig 2
Percentage (%)
37.5
50
5
4.25
3.25
100
Figure respondent rate
From table 3 and figure 2, 400 out of the 500 respondents
responded to the questionnaire representing a 80% response
rate. This response rate was considered high. The 20% who
did not return the questionnaires cited busy schedules as the
main reason for lacking time to fill them.
Part one: characteristics of respondents
Table 4: Sex distribution of the respondents
Sex of respondents
Male
Female
Total
Source: field data 2022
Frequency (F)
300
100
400
Percentage (%)
75
25
100
Fig 4
Figure material status of respondents
According table 5 and figure 4 above 200 of the respondents
are single representing 50%; 150 of the respondents are
married with a percentage of 37.5; 20 of the respondents are
divorced with a percentage of 5; 17 and 13 of the respondent
are widows and widowers with a percentage of 4.25 and 3.25
respectively.
Table 6: Age bracket of respondents
Fig 3
Figure 4.2 sex distribution
From table 4 and figure 3 confirmed 300 of the respondents
are male representing 75% while 100 of the respondents are
Age Bracket
Frequency (F)
18yrs-25yrs
30
26yrs-34yrs
150
35yrs-42yrs
170
43yrs above
50
Total
400
Source: field data 2022
Percentage (%)
7.5
37.5
42.5
12.5
100
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Table 8: Department of respondents
Departments
Worker
Bike riders
Petty traders and customers
Total
Source: Field data 2022
Frequency (F) Percentage (%)
30
7.5
120
30
250
62.5
400
100
Fig 5
Figure Age bracket of respondents
Table 6 and figure 5 shows the age distributions of
respondents. 30 (7.5%) of respondents are within 18-25 years
of age; 150 (37.5%) of respondents are within 26-34 years of
age. 170 (42.5%) of respondents are within 35-42 years of
age; and 50 (12.5%) of the respondents are 45 years and
above.
Table 7: Academic level of respondents
Academic Level
Primary
Secondary
Tertiary
Technical/Vocational
Illiterate
Total
Source: Field data 2022
Frequency (F)
200
50
50
100
400
Percentage (%)
50
12.5
12.5
25
100
Fig 6
Figure Academic level of respondents
The findings from the study as illustrated in table 7 confirm
that approximately 200 (50%) of the respondents attained
secondary education, 50 (12.5%) have tertiary education; 50
(12.5%) attain technical or vocational education; 100 (25%)
of the respondents are illiterate and no respondent attained
primary education. It was noted that majority of the
respondents were secondary students.
Fig 7
Figure Department of respondents
Table 8 and figure 7 presents the departments of respondents
in Bo city. 30(7.5%) of the respondents are workers.
120(30%) respondents are bike riders, while 250(62.5%) of
the respondents are petty traders and customers. This is
evident that most of the respondents are petty traders and
customers
Part two: The causes of ecological degradation
What are the ominous activities of road construction that
threatens ecology?
From the respondents, ecological degradation has many
causes. They went further to divide it into three aspect namely
natural factors, socio economic factors and human activities.
100 (25%) of the respondents strongly agreed that ecological
degradation is caused by natural factors which are as follows:
climate vagaries, water and wind erosion, flooding, and mud
sliding etc. 100 (25%) of the respondents attest to the fact that
ecological degradation is caused by socio economic factors
such as urbanization, population explosion, inadequate
environmental education, poverty and indoctrination etc. 200
(50%) of the said that ecological degradation is caused by
human activities such as mining, mechanic farming,
deforestation, infrastructural activities e.g. road construction.
Does climate change adaptation drive has the ability to
strengthen ecological conservation?
390 (97.5%) of respondents said yes climate change
adaptation drive has the ability to strengthen ecological
conservation. This is because climate change can alter
temperature and weather pattern. It is true that many species
decline as temperature continue to rise. Changes in
temperature will also cause shift in mating circles especially
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for migrating animals that rely on changing seasons to
indicate their migration and reproductive timing.
Part three: The effect of road construction on ecological
biodiversity
Are there any correlations of ecological conservation to
livelihood?
The entire respondent agreed that there is a strong correlation
between ecological conversations to livelihood. They went
further to state the reason by saying:
Biodiversity provides human with raw materials for
consumption and production
Many livelihood, such as those of farmers, fishers,
timbers workers are dependent on biodiversity
Biodiversity also provides functioning ecosystem that
supply oxygen, clean air and water, pollination of plant,
pest control, waste water treatment and many ecosystem
survives.
Are there probabilities of species getting into extinctions
as a result of threats to ecology in Bo City?
All of the respondents believed that are probabilities of
species getting into extinctions as a result of threats to
ecology. However, these are the views outline by the
respondents. It can lead to habitant loss. The natural habitat
is unable to support the species present. Ecology is threaten
by man activities such mining, logging, urbanization which
can result to habitat destruction that causes the extinction of
species.
Does road constructions impacts ecological bio-diversity
and livelihood?
Almost all of the respondents accepted that road construction
constructions impact ecological and biodiversity and
livelihood. Below are there statements towards road
constructions impacts ecological bio-diversity and
livelihood:
It causes disturbance during construction and pollution
both from the road materials itself and from the traffic of
established road
It can also lead to both direct and indirect loss of habitat.
The indirect loss of habitat refers to the effect such as
fragmentation (i.e. portioning of an ecosystem into
smaller and more isolated patches). The indirect loss of
biodiversity is that they reduce the capability of an
ecosystem to sustain it original biodiversity.
Displacement of business people found along the site
from their original location to a new location which can
affect the business by losing customers as acquiring new
customers is more expensive that to retain and maintain
old ones.
Part four: the effects of road constructions on livelihood
on the residence of Bo city.
Table 9: What is the knowledge base of ecological conservation in
Bo City?
Respondents
Frequency
Very strong
10
Strong
40
Fair
150
Poor
200
Total
400
Source: field data 2022
Percentage (%)
2.5
10
37.5
50
100
Fig 7
Figure: What is the knowledge base of ecological
conservation in Bo City?
The table and figure above show that respondents with very
strong knowledge on ecological conservation are 10
representing 2.5% respondents with strong knowledge on
ecological conservation are 40 representing 10%.
Respondents with fair and poor knowledge on ecological
conservation are 150 and 200 representing 37.5% and 50%
respectively
Part five: the national and international ecological and
biodiversity policies.
Does ecological policies plays crucial role to conserving
environment, and thereby enhancing livelihood?
All of the respondents confirmed that ecological policies can
plays a crucial role in conserving environment, and thereby
enhancing livelihood. As it serves as regulations which
include prohibition, restrictions, mandatory requirements,
standards and procedures that directly authorised or limits
certain actions or impact. For instance restriction on the use
of product such illegally logged timber, activities damaging
to endangered species.
How can the ecology be conserved?
The respondents believed that ecological conversation is very
important. Therefore below are some of the methods used to
conserved ecology.
Management of natural resources: natural resources
management encompasses protection of endangered
species, forestations, protection of aquatic habitat, the
practice of organic farming and the control exploitation
of natural resources.
Creating awareness, education and advocacy:
educative camping and advocacy crate the value of
ecology. It is simply a way of establishing a workable
solution towards conserving and protection both biotic
and abiotic elements.
Creating legislation that promotes environmental
conversation: government should come up with
legislations that promote environmental conversation.
This should also be done by international agencies such
as United Nations with it UN environment program.
Does modern techniques in ecological conservation
proves efficient and effective to enhancing a balanced
environment?
No, modern techniques in ecological conservation is not
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efficient and effective in enhancing a balanced environment.
This is because modern technology plays a dual role. In other
word it can help in proper ecological assessment such as
computer that is used for data collection, analysis, monitoring
and information on ecological management. However, as a
result of modern technology such as bulldozers used in
mechanic farming and road constructions result to loss of
habitat, extension of species and habitat fragmentation.
Do you have anything to say about the effect of road
construction on ecological biodiversity in Bo city?
Road construction can cause both biotic and abiotic effect.
The abiotic condition that can be influenced by road includes
hydrological,
geomorphological,
and
chemical
characteristics. The biotic factors influence by roads
construction is soil organisms, plants, and animal etc.
Discussion of findings
From the respondents it was confirmed that 80% of the
respondents returned the questionnaire while the reaming
20% of respondents cited busy. Also 75% of the respondents
are male, 50%, 37.5% of the respondents are single and
married respectively, 42.5% of the respondents are adult, 7.5
of the respondents are adolescents. The result of the study
showed a high proportion of 75% of the respondents were
educated and completed at least secondary school education,
62.5% of the respondents are petty traders and customers,
30% of the respondents are bike riders and finally 7.5% of the
respondents are workers.
The causes of ecological degradation
The research focused on the causes of ecological degradation
and it was confirmed that natural, socio and human actives
are the causes. 25% of the respondents attest to the fact that
ecological degradation is caused by natural factors which are
as follows: climate vagaries, water and wind erosion,
flooding, and mud sliding etc. however, Issaka and Ashraf
(2017) [37] confirmed that natural causes include those factors
relating to climate change vagaries and surface erosion. The
idea of the respondents and that of Issak and Ashraf is in line.
75% of the respondents agreed that ecological degradation is
caused by human activities. According to Adejumobi (2017)
[2]
he states that increased urbanization and population
explosion, inadequate environmental education, poverty and
industrialization will lead to ecological degradation.
However there are also other causes as a result of human
activities such as extensive and intensive mechanized and
commercial farming and salinization of agricultural land,
indiscriminate harvest of forest resources, excessive uses of
natural resources, poor urban planning, uncare attitude
towards the environment and its resources, incessant bush
burning and so on (Jiboye and Ogunshakin, 2011;
Adeboyejo, 2017) [47, 2], A very high proportion of 70% of the
respondents clearly confirmed that climate change adaptation
drive has the ability to threaten ecological conservation. It is
very clear that climate change will result to plenty
disturbance on ecological conservation. Change can alter
temperature and weather pattern that result to decline of
species
The effect of road construction on ecological biodiversity
It was obvious that road construction has effect on ecological
biodiversity. Most of the respondents believed that
biodiversity provides human with raw materials for
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consumption and production, many livelihood, such as those
of farmers, fishers, timbers workers are dependent on
biodiversity and bbiodiversity also provides functioning
ecosystem that supply oxygen, clean air and water,
pollination of plant, pest control, waste water treatment and
many ecosystem survives.
The respondents there are probabilities of species getting into
extinction as a result of threats to ecological conversation. As
it leads to habitant loss, the natural habitat is unable to support
the species present and by man activities such mining,
logging, urbanization which can result to habitat destruction
that causes the extinction of species.
It was also confirmed that road construction impact
ecological and biodiversity and livelihood because it causes
disturbance during construction and pollution both from the
road materials itself and from the traffic of established road,
it can also lead to both direct and indirect loss of habitat. The
indirect loss of habitat refers to the effect such as
fragmentation (i.e. portioning of an ecosystem into smaller
and more isolated patches). The indirect loss of biodiversity
is that they reduce the capability of an ecosystem to sustain it
original biodiversity and displacement of business people
found along the site from their original location to a new
location which can affect the business by losing customers as
acquiring new customers is more expensive that to retain and
maintain old ones.
The effects of road constructions on livelihood on the
residence of Bo city
The study shows a high proportion of 50% respondents with
poor knowledge on ecological conversation. On the other
hand only 2.5% of respondent have very strong knowledge
on ecological conversation. Therefore as a result of poor
knowledge in ecological conservation, the biodiversity is
highly disturbed as natural habitats are been converted to
artificial habitats. This can disturb the adaptation and
production of organisms.
The national and international ecological and biodiversity
policies
All of the respondents confirmed that ecological policies can
plays a crucial role in conserving environment, and thereby
enhancing livelihood. As it serves as regulations which
include prohibition, restrictions, mandatory requirements,
standards and procedures that directly authorised or limits
certain actions or impact. For instance restriction on the use
of product such illegally logged timber, activities damaging
to endangered species.
According to the respondents, the ecology can be conserved
by the
Management of natural resources: natural resources
management encompasses protection of endangered species,
forestations, protection of aquatic habitat, the practice of
organic farming and the control exploitation of natural
resources. Secondly by creating awareness, education and
advocacy: educative camping and advocacy crate the value
of ecology. It is simply a way of establishing a workable
solution towards conserving and protection both biotic and
abiotic elements and finally by creating legislation that
promotes environmental conversation: government should
come up with legislations that promote environmental
conversation. This should also be done by international
agencies such as United Nations with it UN environment
program.
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International Journal of Multidisciplinary Research and Growth Evaluation
No, The respondents have different perceptions towards the
effective and efficient of modern techniques in ecological
conservation. in enhancing a balanced environment. This is
because modern technology plays a dual role. In other word
it can help in proper ecological assessment such as computer
that is used for data collection, analysis, monitoring and
information on ecological management. However, as a result
of modern technology such as bulldozers used in mechanic
farming and road constructions result to loss of habitat,
extension of species and habitat fragmentation.
Summary, conclusion and recommendations
Introduction
This chapter focuses on the summary, conclusion and
recommendations of the study. It is arranged based on the
research objectives in relation with the research questions.
However, the research recommendation is put forward to
appropriate authorities like government and other
researchers.
Summary
The researcher ascertains that road construction have both
positive and negative effect on ecological biodiversity and
livelihood in Bo City. From the research, the road
construction project in Bo city is an indication of economic
growth and development as it enhance mobility and
accessibility. On the other hand, construction process leads to
loss of habitat, dispersal of organism, extension and lost of
soil organism. Also, the people of Bo is greatly or negatively
affected during the construction process as it leads to
displacement of business people, discomfort of people as a
result of heavy noise produced by machines, dust and
pollution.
Further research should conducted similar research on
biodiversity and ecological conversation.
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