上海郊区红隼(Falco tinnunculus)种群密度及其变化

2002年7月到2004年6月对上海郊区祝桥镇、机场镇和朝阳农场及其附近区域的红隼种群密度进行了计数调查.调查通过固定路线进行,共进行调查53次.结果表明该区域红隼种群密度冬季明显高于夏季,呈现明显的月变化和季节变化,红隼种群的季节变动在一定程度上反映了该区域红隼的迁徙及居留情况,认为红隼在上海地区的居留状况包括留鸟、冬候鸟和过境鸟3种类型.混合农作物生境和芦苇生境中红隼种群密度具有极显著差异（t＝4.6506,P＝0.0000〈0.001）,红隼更加偏好混合农作物生境.通过红隼的种群密度可以反映红隼的居留状况和对生境的选择情况.

Variation of Common Kestrel Population Density at Suburban of Shanghai, China

The common kestrel population density of Zhuqiao Town,Jichang Town,Chaoyang Farmland of Shanghai was studied with a transect count method sampling on a fixed route from July,2002 to June,2004.The result indicated that the population density of kestrel had a monthly variation,and this variation refleced the migration status of kestrels in this area.The kestrel population of this area was composed of resident,migrant and on passage kestrel individuals.Mixed farmland habitat and reed land habitat supported a different population density of kestrels(t=4.6506,P=0.0000<0.001).Variation of population density of kestrel can indicate kestrel's resident status and habitat preference.