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Population Size and Sex Ratio of Wintering Scaly-Sided Merganser Mergus squamatus in the Poyang Lake Water System, Jiangxi Province, China

Population Size and Sex Ratio of Wintering Scaly-Sided Merganser Mergus squamatus in the Poyang Lake Water System, Jiangxi Province, China

 Zhi Yijin and Shao Mingqin*

 College of Life Science, Jiangxi Normal University, Nanchang, Jiangxi 330022, China


*      Corresponding author: 1048362673@qq.com

 

Fig. 1.

Distribution of surveyed areas in four rivers of Poyang Lake water system in Jiangxi Province. Number in the map means sex ratio in that river; different-sized points mean different population size in the corresponding proportion. — means transect lines where we investigated the mergansers.

Fig. 2.

Sex ratio of scaly-sided mergansers in seven river sections of Poyang Lake water system.

Fig. 3.

Relationship between sex ratios and group size of scaly-sided merganser in Poyang Lake water system.

Pakistan Journal of Zoology

December

Vol. 51, Iss. 6, Pages 1999-2399

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