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Deb, Panna
- Tree Diversity and Population Structure in a Lowland Tropical Rainforest in the Eastern Himalayas, India
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Indian Forester, Vol 135, No 11 (2009), Pagination: 1526-1544Abstract
The tropical rainforests in North-East India are the least investigated despite their high diversity and being located at the northern-most limit of the rainforests that occur farthest from the equator. The lowland tropical rainforests at Namdapha National Park, Arunachal Pradesh (Eastern Himalayas) were investigated for tree species diversity, population structure and species richness with reference to three distinct canopy covers, viz. an Altingia-mixed species stand, Shorea-Dipterocarp stand, and an Albizia stand. A total of 1,053 trees covering 130 species in 44 families were recorded at ≥10 cm dbh, while 34,526 individuals covering 104 species in 44 families were enumerated at <10 cm dbh. The tree species richness for three inventoried stands varied from 98, 54 and 20 species in ≥10 cm dbh with overall density of 418, 390 and 245 trees ha-1 for the three stands respectively. Lauraceae, Dipterocarpaceae, Euphorbiaceae, Fagaceae and Leguminosae dominated the flora; thus the forest exhibited typical attributes of lowland evergreen tropical rainforests.Keywords
Species Diversity, Tree Structure, Conservation, Namdapha National Park, North-East India
- Tree Diversity and Population Structure in a Lowland Tropical Rainforest in the Eastern Himalaya, India
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Indian Forester, Vol 137, No 8 (2011), Pagination: 992-1004Abstract
The tropical rainforests in the northeast India are least investigated despite of their higb diversity and being located at the northern most Hmit of the rainforests that occur farthest from the equator. The lowland tropical rainforests at Namdapha National Park, Arunachal Pradesh (Eastern Himalaya) was investigated for tree species diversity, population structure and species richness with reference to three distinct canopy covers, viz.. an Altingia-mixed species stand. Shorea-Dipterocarp stand, and an Albizia stand. A totaJ of 1053 trees covering 130 species in 44 families were recorded at > 10 cm dbh, while 34526 individuals covering 104 species in 44 families were enumerated at < 10 em dbh. The tree species richness for three inventoried stands varied from 98, 54 and 20 species in ≥ 10 cm dbh with overall density of 418,390 and 245 trees ha-1 for the three stands respectively. Lauraceae. Dipterocarpaceae, Euphorbiaceae, Fagaceae and Leguminosae dominated the flora; thus the forest exhibited typical attributes of lowland evergreen tropical rainforests.Keywords
Lowland Tropical Rain Forests, Namdapha National Park, Species Diversity, Tree Structure, Conservation, Northheat India- Ground foraging Behaviour of Malayan Giant Squirrel (Ratufa bicolor)
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1 Department of Ecology and Environmental Sciences, and Assam University, Silchar 788 011, IN
2 Centre for Biodiversity and Natural Resource Conservation, Assam University, Silchar 788 011, IN
1 Department of Ecology and Environmental Sciences, and Assam University, Silchar 788 011, IN
2 Centre for Biodiversity and Natural Resource Conservation, Assam University, Silchar 788 011, IN
Source
Current Science, Vol 110, No 12 (2016), Pagination: 2223-2225Abstract
Giant squirrels are considered an important component of forested ecosystems, and are advocated as indicators of forest health. The Malayan giant squirrel (MGS; Ratufa bicolor), one of the four giant tree squirrels in the Oriental region (the other three being R. affinis, R. indica and R. macroura), is found in the Malayan region, North East India and Myanmar. It is listed as Near Threatened (NT) by IUCN, in Appendix II of CITES and Schedule II of Indian Wildlife (Protection) Act 1972.Full Text
- Seediness as an Invasive Trait in Mimosa diplotricha Sauvalle in a Tropical Grassland
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Affiliations
1 Centre for Biodiversity and Natural Resource Conservation, Department of Ecology and Environmental Science, Assam University, Silchar 788 011, IN
1 Centre for Biodiversity and Natural Resource Conservation, Department of Ecology and Environmental Science, Assam University, Silchar 788 011, IN
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Current Science, Vol 117, No 1 (2019), Pagination: 21-23Abstract
For successful invasion into an ecosystem, a species always depends upon some traits such as high growth rate, successive reproduction, higher number of seeds with low mass, seed viability and seedling mortality1. Among these traits, the reproductive behaviour of a plant is mainly associated with its invasiveness2. Seed production and germination are the two key processes associated with the initial phase of plant establishment, which determine the fate of an invasive plant in a new region1, and that is especially true for annuals reproducing exclusively by seed3.Full Text
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