摘要
本文在对舟山岛屿鸟类区系和生态分布研究基础上进行了岛屿间鸟类区系的相似性、多样性、稳定性、种群数量和优势种的测定,并对鸟类数量与岛屿面积的关系进行了分析。结果表明,舟山群岛自南向北,水文、气象、植被景观、鸟类种数存在梯度变化;海岛鸟类群落的空间分布不仅取决于岛屿面积大小和岛屿离大陆的远近,也取决于地理纬度、植被、气象变异、食物、海洋隔离以及人为干扰较大陆少等因素。本文对造成岛屿鸟类密度较大陆高的原因也进行了讨论。
This paper deals with the species composition and ecological distribution of birds in Zhoushan archipelago,and gives species diversity,similarity, stability, population density and dominant species. It gives the relationship between island area and the number of birds. The results show that there is a gradient (from south to north) in respects of hydrology, meteorology, vegetation landscape and the number of birds in Zhoushan archipelago; the birds association of the islands rely on not only the distance from adjacent continent and the area size of each island, but also latitude, vegetation, meteorological factors, food and ocean isolation etc. The cause which the birds density of an island is higher than that of continent is discussed too.
出处
《浙江林学院学报》
CSCD
1990年第2期153-160,共8页
Journal of Zhejiang Forestry College
关键词
鸟类
生态学
地理分布
舟山群岛
Zhoushan archipelago
island
ecology
birds
ecological geography
