Figure 2 in Life in the extreme environment: Structure and species richness of bird assemblages on Yuzhny Island of Novaya Zemlya, Russia

Figure 2. Structure of bird assemblages on Yuzhny Island of Novaya Zemlya. (A) Cluster analysis of bird assemblages. Ward's classification approach was applied to a Euclidean distance matrix, which was calculated based on bird species abundances (categorical estimations by using a five-point logarithmic scale). (B)-(C) Histograms of the distribution of bird ecological groups (number of species in each group) over the range of habitats (B) and over relative occurrence of each species through habitats (C).