Journal of East China Normal University(Natural Sc ›› 2019, Vol. 2019 ›› Issue (3): 120-130.doi: 10.3969/j.issn.1000-5641.2019.03.013

• Life Science • Previous Articles     Next Articles

Differences in biodiversity of diurnal and nocturnal waterbirds between natural and artificial wetlands: A case study from Caohai Nature Reserve and Yangwanqiao Reservoir, Guizhou Province

LUO Zu-kui1, LI Yang2, LIU Wen3, LI Xing-yuan1   

  1. 1. School of Life and Health Science, Kaili University, Kaili Guizhou 556011, China;
    2. Bureau of Leigongshan National Nature Reserve, Leishan Guizhou 557100, China;
    3. Bureau of Caohai National Nature Reserve, Bijie Guizhou 553100, China
  • Received:2018-03-28 Online:2019-05-25 Published:2019-05-30

Abstract: In order to compare diurnal and nocturnal differences in waterbird biodiversity between Caohai Nature Reserve (natural wetland) and Yangwanqiao Reservoir (artificial wetland), we investigated waterbirds primarily using the line transect method during the wintering period from 2010 to 2016. The results from daylight hours indicated that avian abundance, richness, unique species, and the G-F index in Caohai Nature Reserve were all significantly higher than those observed in Yangwanqiao Reservoir, both in spring and winter. The results from nighttime indicated that avian abundance, richness, unique species, and G-F index in Caohai Nature Reserve were all significantly higher than those observed in Yangwanqiao Reservoir in winter. However, there were not significant differences in avian abundance, richness, and unique species observed between the two wetlands in spring. Birds with both different foraging ways and different body sizes varied significantly between the wetlands during daytime and nighttime. The size of mudflats, anthropological disturbances, cement banks, and emerging lake aquatic plants are the main factors that bring about differences in the waterbird community between the two wetlands. The status of habitat exploitation by waterbirds in a plot can be shown if avian distribution is observed both during daytime and nighttime.

Key words: wetland type, waterbird community structure, diurnal and nocturnal difference

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