Journal of Ecology and Rural Environment ›› 2020, Vol. 36 ›› Issue (11): 1403-1409.doi: 10.19741/j.issn.1673-4831.2019.1058

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A Preliminary Study on Wintering Waterbirds Diversity and Trend of Sub Lakes in Jiangxi Poyang Lake National Nature Reserve

YU Ding-kun1, XU Zhi-wen1, LIU Wei2, QI Hong-yan1, ZHAN Hui-ying1, LUO Hao1, LIU Guan-hua1, YI Jian-feng2   

  1. 1. Jiangxi Poyang Lake National Nature Reserve Authority, Nanchang 330038, China;
    2. Nanjing Institute of Environmental Sciences, Ministry of Ecology and Environment, Nanjing 210042, China
  • Received:2019-12-31 Online:2020-11-25 Published:2020-11-18

Abstract: The diversity of wintering waterbirds in the nine sub lakes of Jiangxi Poyang Lake National Nature Reserve was investigated during the wintering periods from 2011 to 2019 by using direct counting method. A total of 74 species of waterbirds belonging to 13 families 6 orders were recorded and the average quantity was (148.5±67.0) thousand individuals in wintering period. There were 4 species (Grus leucogeranus, Grus monacha, Ciconia nigra, Mergus squamatus), that indexed as the first-class of national protected bird and 6 species indexed as second-class of national protected bird in the study area. During the eight wintering periods, the wintering period of 2016-2017 was the highest with 56 waterbirds species and 253.3 thousand individuals. While the wintering period of 2012-2013 was the lowest with 27 species and 23.8 thousand individuals. Among the nine sub lakes, the number of species at Dachahu Lake (24.25 species) was the highest, followed by Shahu Lake (23.75 species), and Meixihu Lake (9.13 species) was the lowest. The number of individuals at Dahuchi Lake (46 875.38 individuals) was the highest, followed by Dachahu Lake (45 749.63 individuals), and the lowest was Meixihu Lake (2 131.13 individuals). Both of the Shannon-Wiener diversity (H') and the Pielou evenness index (J') of waterbirds at Shahu Lake (H'=2.18±0.30, J'=0.72±0.08) were the highest, and both of them at Zhonghuchi Lake (H'=1.10±0.68, J'=0.45±0.21) were the lowest. Based on the results and current situation, relevant proposals for conservation and management of bird diversity in Jiangxi Poyang Lake National Nature Reserve were offered.

Key words: Poyang Lake, sub lake, waterbird, diversity

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