Abundance and habitat-suitability relationship deteriorate in fragmented forest landscapes:a case of Adinandra griffithii Dyer,a threatened endemic tree from Meghalaya in northeast India

作     者：Dibyendu Adhikari Aabid Hussain Mir Krishna Upadhaya Viheno Iralu Dilip Kumar Roy 

作者机构：Department of BotanyNorth-Eastern Hill UniversityShillong 793022India Department of Environmental StudiesNorth-Eastern Hill UniversityShillong 793022India Department of Basic Sciences and Social SciencesNorth-Eastern Hill UniversityShillong 793022India Botanical Survey of IndiaEastern Regional CentreShillong 793003India 

出 版 物：《Ecological Processes》 (生态过程（英文）)

年 卷 期：2018年第7卷第1期

页      面：23-31页

核心收录：

学科分类：0710[理学-生物学] 0830[工学-环境科学与工程（可授工学、理学、农学学位）] 07[理学] 0815[工学-水利工程] 071002[理学-动物学] 0713[理学-生态学] 

基　　金：The research was partially funded by the Ministry of Environment Forest and Climate Change(MoEF and CC) Government of India in the form of a project(no.14/25/2011-ERS/RE) 

主　　题：Abundant-center hypothesis Species abundance Habitat suitability EVI ENM 

摘      要：Introduction:A strong positive‘abundance and habitat-suitability’relationship is crucial for conservation of ***,anthropogenic alteration of natural landscapes leading to land use and land cover change,habitat loss,and species extinctions(may)have putatively disturbed this ***,it is important to study the nature of the relationship in such human influenced ***:In this study,we endeavored to understand the consistency of the relationship in the fragmented natural landscapes in the Khasi,Garo,and Jaintia hills of Meghalaya in northeast India,with Adinandra griffithii(an endangered endemic tree)as a model *** reconstructed the distribution of its suitable habitats as a function of the remotely sensed vegetation phenology(i.e.,EVI data),using point occurrence data and ecological niche modeling(ENM)*** of the abundance and habitat characterization was done through field surveys following standard ***:The study revealed that remotely sensed landscape-level vegetation phenology could effectively discriminate the suitable and unsuitable habitats of threatened *** regression model showed a weak positive correlation between abundance and predicted habitat suitability for adult trees indicating(plausible)deterioration in the ***,sapling and seedling populations did not show a precise trend in this ***-based studies revealed that removal of the species from the suitable habitats because of anthropogenic disturbances possibly weakened the abundance-suitability ***:The findings of the study enjoin the need for re-establishment of the species in the suitable areas for its conservation and perpetuation.