Analysis on the distribution of avian ecological groups from different water levels habitats during autumn migration provide way forward to preserve the diversity of birds in reserve

[Objective]The study was conducted to understand the relationship between ecological groups of birds,habitat water level in wetlands,and the spatial distribution of avian ecological groups in different habitat gradients.[Method]The study was carried out from August 2005 to October 2009,during autumn migration in the Zhalong Nature Reserve,China.The data were collected from sampling areas using line-transect sampling,square sampling,circle sampling,grand poin…查看全部>>