Fig. 4From: Seasonal fluctuations and changing characteristics of a temperate zone wetland bird communityDendrogram of 24 plots classified by TWINSPAN classification. Abbreviations are as follows: a, division 1; b, division 2; c, division 3; I, group 1; II, group 2; III, group 3; IV, group 4; number, 01 January 2011 to 24 December 2012Back to article page