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Biodiversity changes in the lakes of the Central Yangtze
Author(s) -
Fang Jingyun,
Wang Zhiheng,
Zhao Shuqing,
Li Yongke,
Tang Zhiyao,
Yu Dan,
Ni Leyi,
Liu Huanzhang,
Xie Ping,
Da Liangjun,
Li Zhongqiang,
Zheng Chengyang
Publication year - 2006
Publication title -
frontiers in ecology and the environment
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.918
H-Index - 164
eISSN - 1540-9309
pISSN - 1540-9295
DOI - 10.1890/1540-9295(2006)004[0369:bcitlo]2.0.co;2
Subject(s) - wetland , biodiversity , endangered species , habitat , ecology , geography , ecosystem , population , waterfowl , fishery , environmental science , biology , demography , sociology
The Central Yangtze ecoregion in China includes a number of lakes, but these have been greatly affected by human activities over the past several decades, resulting in severe loss of biodiversity. In this paper, we docu- ment the present distribution of the major lakes and the changes in size that have taken place over the past 50 years. Using remote sensing data and historical observations of land cover in the region, we provide an overview of the changes in species richness, community composition, population size and age structure, and individual body size of aquatic plants, fishes, and waterfowl in these lakes. The overall species richness of aquatic plants found in eight major lakes has decreased substantially during the study period. Community composition has also been greatly altered, as have population size and age and individual body size in some species. These changes are largely attributed to the integrated effects of lake degradation, the construction of large hydroelectric dams, the establishment of nature reserves, and lake restoration practices.