Seasonal change in group size amongst five wild herbivore species

摘要: Summary Species group size, a parameter increasingly used in mammal census work is discussed the light of 47 months' data for five gregarious species. It shown that size parameters fluctuate seasonally, can be correlated with social and reproductive behaviour are basically predictable. Species closed family unit structure exhibit constant whilst those an open large seasonal changes. Group density two finite animal populations compared dependent variables found to significantly correlated.