神农架林区海南(开+鸟)栖息地特征初步研究

Preliminary study on habitat selection of Gorsachius magnificus in forest zone of Shennongjia

2001年5月,对神农架林区进行了实地考察,并结合林区有关工作人员近几年的观察,在海南(Gorsachiusmagnificus)栖息和觅食活动比较频繁的4个主要地点,用全球卫星定位系统(GPS)确定各地点的方位,并对各地点的海拔高度、坡度、坡向和植被等进行考察。结果表明,神农架林区海南栖息活动地有以下特点:(1)该鸟栖息地主要分布在海拔600m以下,栖息活动地类型主要有常绿落叶阔叶混交林、灌木林和灌草丛、农田等。(2)该鸟主要选择水源充足,鱼虾丰富的小河溪流以及小河旁的农田作为觅食地。

In May 2001,scientists,by integrating their investigation in the forest zone of Shennongjia with the observation and study made by forest zone working personnels in recent years,found that Gorsachius magnificus mainly rested and frequently looked for food in four places.By using GPS,scentists have got the localities .Furthermore,they investigated the elevation,slope,slope direction and vegetation,from which a conclusion was drawn that G. magnificus' habitats in the forest zone of Shennongjia had following features:(1) Gorsachius magnificus habitats were mainly distributed below the alptitude of 600 m,and the main types were evergreen mixed forest of deciduous leaf and broadleaf trees,bushes,thick growth of grass and farmland,and so on.(2) Gorsachius magnificus always looked for food in small rivers and streams with rich water sources and abundant fish and shrimps as well as farmland beside small streams.