山东西部地区猛禽的生态分布

Ecological Distribution of Raptors in West Shandong

1990年3月～2007年8月在山东西部(聊城市及周边)地区所记录的猛禽分布情况中,共记录到猛禽2目3科18种,其中优势种有黑耳鸢Milvus lineatus、大鵟Buteo hemilasius、普通鵟Buteo buteo、红隼Falco tinnunculus、长耳鸮Asio otus;常见种有燕隼Falco subbuteo、东方角鸮Otus sunia、纵纹腹小鸮Athene noctua、短耳鸮Asio flammeus;另外,有9个稀有种:凤头蜂鹰Pernis ptilorhynchus、雕鸮Bubo bubo、游隼Falco peregrinus、灰背隼Falco columbarius、阿穆尔隼Falco amurensis、雀鹰Accipiter nisus、鹗Pandion haliaetus、白尾鹞Circus cyaneus和黄爪隼Falco naumanni,其中后4种是21世纪以来见到的。各种猛禽有明显的栖息地选择差异和季节性分布密度变化,总体密度有些微回升趋势。

From March 1990 to August 2007, the ecological distribution of raptors was surveyed in west Shandong Province including Liaoeheng City and its circumjacent areas. 18 species of raptors, belonging to 3 families and 2 orders were recorded. The domiuant species were Milvus lineatus , Buteo hemilasius , Buteo buteo , Falco tinnunculus and Asio otus. The common species were Falco subbuteo , Otus sunia , Athene noctua and Asio flammeus. The rare species were Pernis ptilorhynchus , Bubo bubo , Falco peregrinus , Falco columbarius , Falco amurensis , Accipiter nisus , Pandion haliaetus , Circus cyaneus and Falco naumanni, and the last 4 species were new records to the area. The results also showed that the different raptors were different in choice of habitats, and seasonal change in density. The total density of the birds in Liaocheng is slightly