Figure 6 in An austral anuran assemblage in the Neotropics: seasonal occurrence correlated with photoperiod

Figure 6. Similarity of calling season for males of 18 anuran species recorded between August 2005 and July 2006. The rectangles indicate groups with overlap greater than 70%. r5cophenetic correlation coefficient. Group I: species that called mainly during spring and summer; group II: species that called only during summer; group III: species that called during spring; group IV: species that called throughout the year, except in summer. Species abbreviations follow Figure 3.