CURRENT SCIENCE, VOL. 100, NO. 11, 10 JUNE 2011, Jun 10, 2011
"This study deals with the influence of habitat enrichment
through landscape heterogeneity on av... more "This study deals with the influence of habitat enrichment
through landscape heterogeneity on avian diversity
in suburban habitat (human habitat) versus pine
forest and open exposed shrub land (non-human habitat)
at the G.B. Pant Institute of Himalayan Environment
and Development (GBPIHED) campus (1100–
1250 m asl), Kosi-Katarmal, Almora, Uttarakhand,
India. Bird diversity on fruiting plants was also studied
to know the occurrence and richness of fruit plants
on overall bird diversity. The study area, which consisted
of the then degraded gentle slopes, has transformed
into thick vegetation cover due to plantation of
a large number of fruit and ornamental plants. Line
transect and stationary point count methods were followed
during the entire study. Out of a total of 61 bird
species observed, 28 are new reports from the study
site. The human habitat has a higher avian species
richness (S = 50) in comparison to non-human habitat
(S = 44). A significantly higher density of Jungle
Myna, Common Myna and Red-billed Blue Magpie in
suburban habitat, and restricted distribution of House
Sparrow and Blue Rock Pigeon in the same habitat
may be due to availability of high feeding and nesting
opportunities. Increase in the number of humanassociated
species in suburban habitat indicates progressive
urbanization of the area. However, lack of
significant difference in Shannon diversity index
between the two habitats indicates that homogenization
due to urbanization is still at a low level."
... Therefore, barring a few rela-tively old 'scizo/patro' endemic taxa (Trollius acaul... more ... Therefore, barring a few rela-tively old 'scizo/patro' endemic taxa (Trollius acaulis, Paeonia emodi, Parrotiopsis jacquemontiana, Vibur-num foetens, etc.), schizo endemism appears to be ... Valentine, DH, Taxonomy, Phytogeography and Evolution, Academic Press, London, 1972 ...
... alba Seeds: effect of temperature and promoters. Seed Science and Technology, 23, 831842. Dh... more ... alba Seeds: effect of temperature and promoters. Seed Science and Technology, 23, 831842. Dhar, U., Rawal, RS and Upreti, J. (2000). ... Medicinal Plants of Indian Himalaya. Hima Vikas Occassional Publication No-13, GBPIHED, Kosi, Almora, India. ...
The Journal of Horticultural Science and Biotechnology, 2004
Heracleum candicans, an endangered medicinal plant of commercial value, is subject to heavy explo... more Heracleum candicans, an endangered medicinal plant of commercial value, is subject to heavy exploitation in the wild. This paper presents findings on the effect of the growing medium (or substrate) on seedling performance, propagation from rhizome cuttings and in vitro ...
Proceedings of the National Academy of Sciences, India Section B: Biological Sciences, 2012
ABSTRACT Over the last decade or so biodiversity indicators in the Indian Himalayan Region (IHR) ... more ABSTRACT Over the last decade or so biodiversity indicators in the Indian Himalayan Region (IHR) have been variously applied depending upon the objectives of the investigations, for example, selected biodiversity attributes, such as, richness, naturalness, representativeness, uniqueness, endemicity and use value have been effectively applied for prioritization of sites, clusters and grid units in the timberline zone of the Himalaya. An analysis on location specific data sets on endemic elements using various indices as indicators have resulted in the identification of endemic rich grid units in the Himalaya. Likewise, population structure, compositional pattern, sex ratio distribution, habitat heterogeneity, extent of biomass harvesting, litter-fall decomposition rate, etc. help in identifying and assessing changing patterns in composition, structure and function of forest ecosystems. More recently, long time phenological data of selected biodiversity elements using herbarium records is attracting increasing interest to understand how plants respond to global climate change. Such studies attempt to assess the usefulness of phenological patterns as indicators of change focusing on selected high value medicinal alpine/sub-alpine and temperate herbaceous species of IHR, a global hotspot, reportedly sensitive to climatic change. Phenological model using generalized additive models demonstrated early flowering pattern for most species except for Swertia cordata. The paper discusses the usefulness of identifying and applying various types of biodiversity indicators for their value in developing conservation strategies and management options. Moreover, their predictive value in developing future scenarios is also highlighted.
Page 1. VIR Jl~, UPPEAI~DRA DHAR and P. KACHROO Department of Botany, University of Kashmir, Srin... more Page 1. VIR Jl~, UPPEAI~DRA DHAR and P. KACHROO Department of Botany, University of Kashmir, Srinagar -- 190 006, India Contribution to the Phytogeography of Kashmir Himalaya I. Ranunculaceae and Paeoniaceae Keywords ...
Anin vitro propagation protocol for a leguminous liana,Bauhinia vahlii, has been established. In ... more Anin vitro propagation protocol for a leguminous liana,Bauhinia vahlii, has been established. In the first experiment, cotyledonary nodes fromin-vitro-germinated seedlings were cultured on various basic media (Murashige and Skoog medium, Woody Plant medium, B5, and 1/2 Murashige and Skoog medium) containing 1.0μM thidiazuron. Shoot proliferation (96.20%) and multiplication (5.55 shoots/explant) was best when cultured on Murashige and Skoog medium. The second experiment compared responses to benzylaminopurine, kinetin, zeatin and thidiazuron. Murashige and Skoog medium supplemented with 1.0μM thidiazuron proved most effective for both shoot proliferation and shoot multiplication. The effect of cytokinin type and concentration and their interaction was found to be significant (P<0.001) for explant proliferation, shoot number and length. Subsequent rooting (55.14%) of the regenerated shoots was achieved on half-strength Murashige and Skoog medium supplemented with IμM 1- naphthaleneacetic acid. Successful transfer of regenerants to soil has been accomplished, and efforts are being made to gradually transfer them to field conditions.
... attach. SHER S. SAMANT, RANBEER S. RAWAL, & UPPEANDRA DHAR GB Pant Institute of Himalayan... more ... attach. SHER S. SAMANT, RANBEER S. RAWAL, & UPPEANDRA DHAR GB Pant Institute of Himalayan Environment & Development Kosi-Katarmal, Almora 263 643, India. The Dilemma of Motorized Vehicles: Electric Cars Scarcely the Environmental Solution ...
The present communication deals with improvement in seed germination of Swertia angustifolia via ... more The present communication deals with improvement in seed germination of Swertia angustifolia via various hormonal treatments (GA 3 , IAA and KNO 3 ). Germination of the species under controlled conditions is found to be low(<32.0%). GA 3 is found to be the best with respect to ...
CURRENT SCIENCE, VOL. 100, NO. 11, 10 JUNE 2011, Jun 10, 2011
"This study deals with the influence of habitat enrichment
through landscape heterogeneity on av... more "This study deals with the influence of habitat enrichment
through landscape heterogeneity on avian diversity
in suburban habitat (human habitat) versus pine
forest and open exposed shrub land (non-human habitat)
at the G.B. Pant Institute of Himalayan Environment
and Development (GBPIHED) campus (1100–
1250 m asl), Kosi-Katarmal, Almora, Uttarakhand,
India. Bird diversity on fruiting plants was also studied
to know the occurrence and richness of fruit plants
on overall bird diversity. The study area, which consisted
of the then degraded gentle slopes, has transformed
into thick vegetation cover due to plantation of
a large number of fruit and ornamental plants. Line
transect and stationary point count methods were followed
during the entire study. Out of a total of 61 bird
species observed, 28 are new reports from the study
site. The human habitat has a higher avian species
richness (S = 50) in comparison to non-human habitat
(S = 44). A significantly higher density of Jungle
Myna, Common Myna and Red-billed Blue Magpie in
suburban habitat, and restricted distribution of House
Sparrow and Blue Rock Pigeon in the same habitat
may be due to availability of high feeding and nesting
opportunities. Increase in the number of humanassociated
species in suburban habitat indicates progressive
urbanization of the area. However, lack of
significant difference in Shannon diversity index
between the two habitats indicates that homogenization
due to urbanization is still at a low level."
... Therefore, barring a few rela-tively old 'scizo/patro' endemic taxa (Trollius acaul... more ... Therefore, barring a few rela-tively old 'scizo/patro' endemic taxa (Trollius acaulis, Paeonia emodi, Parrotiopsis jacquemontiana, Vibur-num foetens, etc.), schizo endemism appears to be ... Valentine, DH, Taxonomy, Phytogeography and Evolution, Academic Press, London, 1972 ...
... alba Seeds: effect of temperature and promoters. Seed Science and Technology, 23, 831842. Dh... more ... alba Seeds: effect of temperature and promoters. Seed Science and Technology, 23, 831842. Dhar, U., Rawal, RS and Upreti, J. (2000). ... Medicinal Plants of Indian Himalaya. Hima Vikas Occassional Publication No-13, GBPIHED, Kosi, Almora, India. ...
The Journal of Horticultural Science and Biotechnology, 2004
Heracleum candicans, an endangered medicinal plant of commercial value, is subject to heavy explo... more Heracleum candicans, an endangered medicinal plant of commercial value, is subject to heavy exploitation in the wild. This paper presents findings on the effect of the growing medium (or substrate) on seedling performance, propagation from rhizome cuttings and in vitro ...
Proceedings of the National Academy of Sciences, India Section B: Biological Sciences, 2012
ABSTRACT Over the last decade or so biodiversity indicators in the Indian Himalayan Region (IHR) ... more ABSTRACT Over the last decade or so biodiversity indicators in the Indian Himalayan Region (IHR) have been variously applied depending upon the objectives of the investigations, for example, selected biodiversity attributes, such as, richness, naturalness, representativeness, uniqueness, endemicity and use value have been effectively applied for prioritization of sites, clusters and grid units in the timberline zone of the Himalaya. An analysis on location specific data sets on endemic elements using various indices as indicators have resulted in the identification of endemic rich grid units in the Himalaya. Likewise, population structure, compositional pattern, sex ratio distribution, habitat heterogeneity, extent of biomass harvesting, litter-fall decomposition rate, etc. help in identifying and assessing changing patterns in composition, structure and function of forest ecosystems. More recently, long time phenological data of selected biodiversity elements using herbarium records is attracting increasing interest to understand how plants respond to global climate change. Such studies attempt to assess the usefulness of phenological patterns as indicators of change focusing on selected high value medicinal alpine/sub-alpine and temperate herbaceous species of IHR, a global hotspot, reportedly sensitive to climatic change. Phenological model using generalized additive models demonstrated early flowering pattern for most species except for Swertia cordata. The paper discusses the usefulness of identifying and applying various types of biodiversity indicators for their value in developing conservation strategies and management options. Moreover, their predictive value in developing future scenarios is also highlighted.
Page 1. VIR Jl~, UPPEAI~DRA DHAR and P. KACHROO Department of Botany, University of Kashmir, Srin... more Page 1. VIR Jl~, UPPEAI~DRA DHAR and P. KACHROO Department of Botany, University of Kashmir, Srinagar -- 190 006, India Contribution to the Phytogeography of Kashmir Himalaya I. Ranunculaceae and Paeoniaceae Keywords ...
Anin vitro propagation protocol for a leguminous liana,Bauhinia vahlii, has been established. In ... more Anin vitro propagation protocol for a leguminous liana,Bauhinia vahlii, has been established. In the first experiment, cotyledonary nodes fromin-vitro-germinated seedlings were cultured on various basic media (Murashige and Skoog medium, Woody Plant medium, B5, and 1/2 Murashige and Skoog medium) containing 1.0μM thidiazuron. Shoot proliferation (96.20%) and multiplication (5.55 shoots/explant) was best when cultured on Murashige and Skoog medium. The second experiment compared responses to benzylaminopurine, kinetin, zeatin and thidiazuron. Murashige and Skoog medium supplemented with 1.0μM thidiazuron proved most effective for both shoot proliferation and shoot multiplication. The effect of cytokinin type and concentration and their interaction was found to be significant (P&lt;0.001) for explant proliferation, shoot number and length. Subsequent rooting (55.14%) of the regenerated shoots was achieved on half-strength Murashige and Skoog medium supplemented with IμM 1- naphthaleneacetic acid. Successful transfer of regenerants to soil has been accomplished, and efforts are being made to gradually transfer them to field conditions.
... attach. SHER S. SAMANT, RANBEER S. RAWAL, & UPPEANDRA DHAR GB Pant Institute of Himalayan... more ... attach. SHER S. SAMANT, RANBEER S. RAWAL, & UPPEANDRA DHAR GB Pant Institute of Himalayan Environment & Development Kosi-Katarmal, Almora 263 643, India. The Dilemma of Motorized Vehicles: Electric Cars Scarcely the Environmental Solution ...
The present communication deals with improvement in seed germination of Swertia angustifolia via ... more The present communication deals with improvement in seed germination of Swertia angustifolia via various hormonal treatments (GA 3 , IAA and KNO 3 ). Germination of the species under controlled conditions is found to be low(<32.0%). GA 3 is found to be the best with respect to ...
Uploads
Papers by Uppeandra Dhar
through landscape heterogeneity on avian diversity
in suburban habitat (human habitat) versus pine
forest and open exposed shrub land (non-human habitat)
at the G.B. Pant Institute of Himalayan Environment
and Development (GBPIHED) campus (1100–
1250 m asl), Kosi-Katarmal, Almora, Uttarakhand,
India. Bird diversity on fruiting plants was also studied
to know the occurrence and richness of fruit plants
on overall bird diversity. The study area, which consisted
of the then degraded gentle slopes, has transformed
into thick vegetation cover due to plantation of
a large number of fruit and ornamental plants. Line
transect and stationary point count methods were followed
during the entire study. Out of a total of 61 bird
species observed, 28 are new reports from the study
site. The human habitat has a higher avian species
richness (S = 50) in comparison to non-human habitat
(S = 44). A significantly higher density of Jungle
Myna, Common Myna and Red-billed Blue Magpie in
suburban habitat, and restricted distribution of House
Sparrow and Blue Rock Pigeon in the same habitat
may be due to availability of high feeding and nesting
opportunities. Increase in the number of humanassociated
species in suburban habitat indicates progressive
urbanization of the area. However, lack of
significant difference in Shannon diversity index
between the two habitats indicates that homogenization
due to urbanization is still at a low level."
through landscape heterogeneity on avian diversity
in suburban habitat (human habitat) versus pine
forest and open exposed shrub land (non-human habitat)
at the G.B. Pant Institute of Himalayan Environment
and Development (GBPIHED) campus (1100–
1250 m asl), Kosi-Katarmal, Almora, Uttarakhand,
India. Bird diversity on fruiting plants was also studied
to know the occurrence and richness of fruit plants
on overall bird diversity. The study area, which consisted
of the then degraded gentle slopes, has transformed
into thick vegetation cover due to plantation of
a large number of fruit and ornamental plants. Line
transect and stationary point count methods were followed
during the entire study. Out of a total of 61 bird
species observed, 28 are new reports from the study
site. The human habitat has a higher avian species
richness (S = 50) in comparison to non-human habitat
(S = 44). A significantly higher density of Jungle
Myna, Common Myna and Red-billed Blue Magpie in
suburban habitat, and restricted distribution of House
Sparrow and Blue Rock Pigeon in the same habitat
may be due to availability of high feeding and nesting
opportunities. Increase in the number of humanassociated
species in suburban habitat indicates progressive
urbanization of the area. However, lack of
significant difference in Shannon diversity index
between the two habitats indicates that homogenization
due to urbanization is still at a low level."