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*
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.
June 2019
Vol. 51, Iss. 3, Pages 801-1202
