Population trends and community composition of migratory waterbirds in three emerging wetlands of global significance in southwestern Bengal, India

Journal of Threatened Taxa

Anirban Sinha¹  T. N. Khan¹  Prantik Hazra¹ 

[1] Ecology and Wildlife Biology Laboratory, Department of Zoology, Maulana Azad College, 8 Rafi Ahmed Kidwai Road, Kolkata, West Bengal 700013, India;

关键词: Community composition, diversity estimates, habitat attributes, habitat expansion, population trends, waterbird abundance.;   

DOI  :  10.11609/jott.2652.8.3.8541-8555

来源: DOAJ

【 摘 要 】

We studied the diversity, abundance and population trends in three flourishing wetlands of southern Bengal over 16 years.  These wetlands constituted a major shift from the present scenario of overall wetland deterioration, including monotonous declines in important winter visitors prevailing in surrounding wetlands, especially in Tilpara Reservoir and Purulia Saheb Bandh Lake.  All the three wetlands support rich waterbird diversity and almost all of them tend to exhibit consistently stable or increasing trends in their populations during the course of the study.  The waterbird communities did not differ greatly during the study period and were tending to arrive at their equilibria.  These wetlands consistently support strong waterbird food-bases, which may support rich diversity.  Since, they have already been supporting increasing or stable populations of a majority of the important waterbird species they are expected to emerge as important waterbird abodes in northeastern India very soon, provided we keep them undisturbed and allow them to follow their own course.

 

【 授权许可】

Unknown