海南(升鸟)巢址选择的初步调查  

Preliminary Study on Nest-site Selection of Gorsachius magnificus

作　　者：周放[1] 余丽江[1] 陆舟[1] 邓福英[1] 钟良富 

机构地区：[1]广西大学动物科技学院,南宁530005 [2]神农架林区自然博物馆,湖北442411

出　　处：《动物学杂志》2005年第1期54-58,共5页Chinese Journal of Zoology

基　　金：国家自然科学基金 (No .30 0 6 0 0 16 ) ;广西自然科学基金 (No.0 135 0 0 3) ;香港嘉道理农场暨植物园资助

摘　　要：1998～ 2 0 0 4年 6月 ,对海南 (Gorsachiusmagnificus)的 4个巢址进行了研究。研究结果表明 ,靠近水源、具有一定坡度的高大阔叶林或针阔混交林的水域湿地、山、林环境因子组合的栖息地对海南的巢址选择具有较高的适合程度。水域湿地有利于亲鸟寻找和获得充足的食物 ,保证雏鸟的生长需要 ;巢址多选择在坡度大于 5 0°的山坡上。海南对巢树的种类选择似乎不太严格 ,但可能对巢树和周围植被的物理性状有一定的要求。以高大、枝桠较多、枝叶繁茂的阔叶树或针叶树为特征 ,筑巢于阔叶林或针阔混交林中 ,植被覆盖度一般在 80 %以上 ,保证巢的稳固性及隐蔽性 ,以达到保护巢窝的目的。This paper presents results of the studies from 1998 to June 2004 on the nest-site selection of Gorsachius magnificus. Totally, 4 nests were found in the field, 3 in southern Guangxi Autonomous Region and 1 in forests of Shennongjia. The results showed that the birds preffer habitat in mountainous region covered by forests near wetland. All the four nests located on hill with over 50° slope neared wetland. Being feeding sites, wetland can provide abundant food recource that make the birds find food conveniently and assure growth of the nestlings. Steep slope did not a favored terrain for the birds becouse they have to search for food far away from the nest-site. However, the steep slope would reduce human disturbance to a minimum and provide safety for nestlings. G. magnificus didn’t select special species of trees as its nest, but the physical character of nest trees and the surrounding vegetation probably are chosen by the birds. G. magnificus preferred the taller trees both broadleaf or conifer with many branches to build its nest. The nest-site was also located in broad-leaved and coniferous-broadleaved mixed forest, with over 80% of canopy. The influence of other factors, such as elevation and slope have not documented in this studies. Further research should be carried out in future.

关 键 词：海南鳽 巢址选择 巢 

分 类 号：Q958[生物学—动物学]