Vertical distribution of algae in semi-desert soil of Shapotou area,Ningxia Hui Autonomous Region
栗斑腹鵐的栖息地和巢址选择

The paper studied the habitat selection and nest-site selection of Jan k owski's bunting (Emberiza jankowskii Taczanovski) in Dagang forestry center of Z henlai country in Jilin province during the period May to July between 1999 and 2001. The contents include habitat selection and nest-site selection. The resul t s show that Jankowski's bunting breeds in the environment of meadow steppe with Armerniaca sibirica. The comparative analysis between the variables of habit at a nd control samples shows that t...