Vegetation structure, niche width, niche overlap and types
of competition in temperate grazingland of Garhwal Himalaya, India |
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Authors: | Smriti Anthwal Ajay B Bhatt Bhagwati P Nautiyal Ashish Anthwal |
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Institution: | 01. Department of Botany, HNB Garhwal University, Srinagar-Garhwal, Uttaranchal, 246 174, India 02. HAPPRC, HNB Garhwal University, Srinagar-Garhwal, Uttaranchal, 246 174, India 03. Department of Horticulture Aromatic and Medicinal Plants, Mizoram University, Tanhril, Aizwal, Mizoram, 796009, India 04. Department of Environmental Sciences, HNB Garhwal University, Srinagar-Garhwal, Uttaranchal, 246 174, India 05. G.B. Pant Institute of Himalayan Environment and Development, Garhwal Unit, Srinagar-Garhwal, Uttarakhand, 246 174, India
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Abstract: | Temperate grazing lands in Garhwal Himalaya are rich in herbaceous vegetation and extensively used for grazing by locally
owned livestock. Capillipedium parviflorum is a frequently occurring and dominant grass species under Pine canopy in associate with several herbs. Beside, grazing and
extensive fire, interactions among associated species is a determining factor of community structure. In this article the
dominant diversity pattern of vegetation in temperate grazing land along two different altitudes and having different slope
aspects is described. Interaction between dominant and co-dominant species with their niche appearance and niche overlap measurement
was also observed and presented here. South and west facing slopes had maximum species and diversity values while east north
facing slopes had higher species dominant. Capillipedium parviflorum and other grasses had maximum niche values and were dominant and co dominant species. Three types of interspecific interaction
were observed between species and grasses were observed as succeeding species in all sites of different topographic conditions.
Dominant diversity pattern along with resource partitioning and interspecific competition is discussed and presented here. |
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Keywords: | Temperate grazing land Species diversity Resource Niche width Niche overlap Competition |
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