Climatic Factors

Arthropods
ISSN 2224-4255

Articles

Centrobolus size dimorphism breaks Rensch’s rule
Arthropods, 2018, 7(3): 48-52
Mark Cooper
[Abstract] [XML] [EndNote] [RefManager] [BibTex] [DOAJ] [PubMed]
[ Full PDF (139K)]
[Email Article] [Comment/Review Article]


An inventory of butterfly species in relation to food sources and climatic factors influencing their diversity and richness in a semievergreen forest of Bangladesh
Arthropods, 2018, 7(3): 53-68
Md. Ashraf Ul Hasan, Sufia Akter Neha, Mohammad Abdul Baki, et al.
[Abstract] [XML] [EndNote] [RefManager] [BibTex] [DOAJ] [PubMed]
[ Full PDF (135K)]
[Email Article] [Comment/Review Article]


Determination of application time and concentration of mineral oil against Pulvinaria aurantii (Hemiptera: Coccidae) in northern Iran
Arthropods, 2018, 7(3): 69-76
Fatemeh Moghimi, Mohammad Reza Damavandian, Ali Ahadiyat
[Abstract] [XML] [EndNote] [RefManager] [BibTex] [DOAJ] [PubMed]
[ Full PDF (149K)]
[Email Article] [Comment/Review Article]


Effect of glyphosate on honey bee (Apis Mellifera) performance
Arthropods, 2018, 7(3): 77-81
Mostafa Faghani, Yaser Rahimian
[Abstract] [XML] [EndNote] [RefManager] [BibTex] [DOAJ] [PubMed]
[ Full PDF (101K)]
[Email Article] [Comment/Review Article]

Background Phenology data collected recently for about 300 accessions of Vigna radiata (mungbean) is an invaluable resource for investigation of impacts of climatic factors on plant development. Results We developed a new mathematical model that describes the dynamic control of time to flowering by daily values of maximal and minimal temperature, precipitation, day length and solar radiation. We obtained model parameters by adaptation to the available experimental data. The models were validated by cross-validation and used to demonstrate that the phenology of adaptive traits, like flowering time, is strongly predicted not only by local environmental factors but also by plant geographic origin and genotype. Conclusions Of local environmental factors maximal temperature appeared to be the most critical factor determining how faithfully the model describes the data. The models were applied to forecast time to flowering of accessions grown in Taiwan in future years 2020-2030.

Transmission of Dengue Hemorrhagic fever by Aedes aegypti mosquito is influenced by several environmental factors, namely temperature, humidity, and rainfall. This study aims at identifying the relationship between environmental factors and dengue vector population density. A longitudinal entomological study was performed in the city of Kassala, Sudan, in 20 households in each of the 20 clusters during the three seasons of 2014 and 2015. Data were collected using spotlight in any water-holding container where immature stages of Aedes spp. were detected. Immature mosquitoes were counted and classified into larvae and pupae. Ambient temperature and relative humidity in each cluster were recorded, and the total rainfall of Kassala City was obtained from the main Meteorological Station in Khartoum. There was a significant positive correlation between rainfall and number of Ae. aegypti females at Garb Algash and Khatmia areas. Larval instar 4 and pupae were positively correlated with high humidity at Khatmia and Altora areas. In autumn season, there was no strong correlation of all the stages with all climatic variables. There was also positive significant correlation between ambient low temperature and number of females in autumn season.

This brief outlines progress achieved with the establishment of the Ethiopian Digital AgroClimate Advisory Platform (EDACaP) under the CCAFS project # P263 (Regional and national engagement, synthesis and strategic research) with support from P1605 (Capacitating African Stakeholders with Climate Advisories and Insurance Development). EDACaP aims to build farmers resilience through agro-climate advisories that digitally integrate climate, soil, crop and agronomic data and are delivered through SMS, IVRS and radio to development agents and farmers in local languages. It builds on a partnership between the Ethiopian Institute of Agricultural Research (EIAR), the Ministry of Agriculture (MoA), the National Meteorological Agency, CIAT, ILRI, CIMMYT with additional support from ICRISAT, IRI and University of Florida.

Background and aims Land cover change (LCC) from natural forest (NF) to plantations (PF) has occurred worldwide over the past several decades. However, the different LCC effects on soil aggregate C and N turnover in various climatic zones remain uncertain. Methods Soil samples were taken from both NF and PF at five sites along an approximately 4200 km northsouth transect in eastern China. We measured soil aggregate C and N concentrations, and δ 13 C and δ 15 N. Results The soil aggregate distribution is similar between NF and PF, except that the mass proportion of microaggregate is lower in NF. The impacts of LCC on soil C and N concentrations, and δ 13 C and δ 15 N vary among five climate zones. The changes in soil aggregate C and N concentrations and δ 15 N induced by LCC show nonlinear relationships with climatic factors (i.e., MAT and MAP), and there is a linear relationship between soil aggregate Δδ 13 C (calculated by subtracting PF from NF) and MAT and MAP. The soil aggregate C and N concentrations, and δ 13 C and δ 15 N show clear trends along the climatic transect. In addition, the impacts of LCC are more obvious in topsoil than in subsoil. Conclusion Our findings highlight that the impacts of LCC on soil C and N concentrations are related to climatic factors. Specifically, that the increased decomposition of soil C in PF than NF can be compensated by higher C inputs with increasing MAT and MAP.

Throughout the past few decades, research has demonstrated that climatic factors are some of the most important issues to be considered in respect of energy consumption in buildings. Climatic factors, therefore, directly influence the economic sector. In order to study the impact of climatic factors in Karakol residential buildings in terms of energy consumption, an evaluation of the studies (literature survey) effected in relevant climates, and the analysis of the existing buildings according to these studies is essential. This represents the aim of this research and the other is to present design strategies for minimizing the negative impact of climatic factors on energy demand in these buildings. To approach the research objectives, the climate of the region was initially investigated. In an attempt to evaluate some of the current housing in the Karakol district of Famagusta in terms of the climatic factors, three types of residential apartments were identified and evaluated through observation, interview, and also by the distribution and complication of qualitative and statistical questionnaires to and by the occupants of the apartments. In this paper, basic climatic problems, as a result of which lead to increased energy consumption in residential apartments in respect of heating and cooling were identified and reported.