Tree Diversity and Population Structure of a Protected Lowland Tropical Forest in Barail Hill Range, Northeast India

Forest Systems

View Publication Info
 
 
Field Value
 
Title Tree Diversity and Population Structure of a Protected Lowland Tropical Forest in Barail Hill Range, Northeast India
 
Creator Deori, Biswajyoti Bikomiya; Department of Ecology & Environmental Science, Assam University, Silchar 788011, Assam, India.
Deb, Panna; Centre for Biodiversity & Natural Resource Conservation, Department of Ecology & Environmental Science, Assam University, Silchar 788011, Assam, India.
Singha, Hilloljyoti; Centre for Biodiversity & Natural Resource Conservation, Department of Ecology & Environmental Science, Assam University, Silchar 788011, Assam, India.
 
Subject Forest Ecology
community structure
 
Description Tree species diversity and population structure of a lowland tropical forest in Barail Wildlife Sanctuary, Assam falling under the important Barail Hill Range of Northeast India was carried out during 2012-2015. 42 quadrat (20m x 25m) were laid in three forest stands selected on the basis of location and species dominance in the lowland forests of the sanctuary following random sampling method. The vegetation data collected were analyzed for density, frequency, basal area, and the Importance Value Index (IVI). Familial importance value was also worked out. Tree Species diversity was calculated following Shannon diversity index and Concentration of Dominance was calculated by Simpson’s Index. Population structure was worked out based on the girth of individual trees belonging to different species. A total of 109 tree species (≥ 30 cm gbh), belonging to 45 families were rerecorded from the sanctuary. Tree species richness was recorded highest for stand I that comprised 88 tree species, followed by stand III (69 tree species) and stand II (48 tree species). Meliaceae, Sapindaceae and Sterculaiceae were the dominant families in different stands. Shannon diversity index was found highest in stand I (4.01) followed by stand III (3.87) and stand II (3.61). The dominant species in stand I were Canarium strictum (IVI 17.58) While in stand II, it was Maniltoa polyandra (IVI 22.31) and Elaeocarpus macrocerus (IVI 19.84) in stand III. The population structure of all the three stands showed a reverse J-shaped curve where as in case of the dominant tree species, individuals in different stands were unequally distributed. The lowland forests of Barail Wildlife Sanctuary are a repository of huge biodiversity in the very important Barail Hill Range landscape of Northeast India that falls under the Indo-Burma Hotspot of biodiversity. Being the only protected area in the entire South Assam region, it acts as an important refuge for the native plants and animals, including the rare, endangered and threatened species of the region. The study would contribute a great deal towards the understanding of tree species composition, diversity, species coexistence and population structure of this very important wildlife sanctuary which will pave the way for its better management and conservation. Key Words: Species Diversity, Richness, Structure, Lowland Tropical Forest, Barail Wildlife Sanctuary
 
Publisher NATIONAL INSTITUTE OF ECOLOGY
 
Date 2017-05-25
 
Type info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
 
Format application/pdf
 
Identifier https://nieindia.org/Journal/index.php/ijees/article/view/1075
 
Source International Journal of Ecology and Environmental Sciences; Vol 42, No 4 (2016); 303-319
 
Language eng
 
Relation https://nieindia.org/Journal/index.php/ijees/article/view/1075/299
 
Coverage Northeast India
Field study
 
Rights The copyright of the journal vests totally with the NATIONAL INSTITUTE OF ECOLOGY.This Journal is registered at the Copyright Clearance Center Inc. (CCC), 222 Rosewood Drive, Suite 910, Danvers, MA 01923, USA. The copyright owner consents that in the U.S.A. copies of the articles may be made for personal or internal use, or the personal or internal use of specific clients, on payment of a fee of US $ 25.00 per article per copy directly to CCC, for copying beyond that permitted by sections 107 or 108 of the US Copyright Law. This consent does not extend to other kinds of copying, such as copying for general distribution, for advertising or promotional purposes, for creating new collective works or for resale. The ONLINE OPEN ACCESS Content of the Journal is only for use of individuals. ANY person or publisher who dowloads the articles and reproduces them in any form- electronic, on a CD/DVD or in print for sale and commercial use shall be prosecuted.
 

Contact Us

The PKP Index is an initiative of the Public Knowledge Project.

For PKP Publishing Services please use the PKP|PS contact form.

For support with PKP software we encourage users to consult our wiki for documentation and search our support forums.

For any other correspondence feel free to contact us using the PKP contact form.

Find Us

Twitter

Copyright © 2015-2018 Simon Fraser University Library