摘要
欧亚地区高地鸟类区系的贫乏性 (仅有 75种繁殖于林线之上 )受严酷的自然条件和食物资源短缺所决定。适合这些条件的主要适应是飞行模式 ,包括与之有关的形态特征 ,繁殖时间的选择 ,最优化利用微生境和伪装的巢址选择 ,窝卵数的限制 ,对雏鸟的食物转运模式 ,防护强紫外线辐射和大气干燥。
The paucity of the avifauna of the Eurasian highlands (only 75 species breed regularly above the timber line) is determined by severe natural conditions and scarcity of food sources. Principal adaptations to meet these conditions are in modes of flight, including morphological peculiarities connected with them, choice of time of breeding and nesting places which optimize use of microclimate and camouflage, limitation of clutch size, mode of transportation of food to nestlings, and protection from strong ultraviolet radiation and atmospheric desiccation. Most life history characteristics of Eurasian highland bird life need further research
出处
《动物学报》
SCIE
CAS
CSCD
北大核心
2004年第6期970-977,共8页
ACTA ZOOLOGICA SINICA
