Avian diversity in hedgerows,preference to hedgerow types and their conservation at Angacha (Kembatta),central Ethiopia  

埃塞俄比亚中部Angacha地区树篱鸟类多样性、对树篱类型的偏好及其保护(英文)

作　　者：Abebe KOKISO 

机构地区：[1]Biology Department,Addis Ababa and Dilla University

出　　处：《Chinese Birds》2012年第2期137-142,共6页中国鸟类（英文版）

摘　　要：The present study aimed to investigate avian diversity in hedgerows at Angacha, in the Kembatta zone, Ethiopia. Transect and point-count methods were deployed to determine avian diversity, species richness, similarity and preferences across five sub study sites. Diversity and preferences of birds to hedgerow types varied in relation to their vegetation composition and structure. Five endemic species, i.e., Rüppel’s Black Chat (Cossyfa semirufa), the White-cheeked Turaco (Tauraco leucotis), the Banded Barbet (Lybius undatus), the Abyssinian Oriole (Oriolus monacha) and the Wattled Ibis (Bostrychia carucullatta) were recorded in the thick hedgerow type. Thickness, height and width of hedgerows affected the diversity, distribution and habitat preference of birds. Thick hedgerow types showed the highest avian species diversity, richness and similarity. There was a high correlation between the hedgerow diversity and its bird diversity, which was directly associated with habitat quality. Bird species diversity and preference for hedgerow types require important conservation and management priorities.本文旨在研究埃塞俄比亚中部Angacha地区树篱中的鸟类多样性。采用样线法及样点法调查了五个子地点的鸟类多样性、丰富度、相似度及对生境的偏好等指标。树篱中鸟类多样性及其对树篱类型的偏好因其植被组成及结构的不同而有所差异。在树篱生境中记录到5个特有鸟种,即卢氏歌 (Cossyfa semirufa)、白颊蕉鹃(Tauraco leucotis)、横斑拟鴷(Lybius undatus)、黑头林鹂(Oriolus monacha)及肉垂鹮(Bostrychia carucullatta)。树篱的稠密度、高度及宽度影响到鸟类的多样性、丰富度及相似度。较密的树篱常常拥有较高的鸟类物种多样性、丰富度和相似性。组成树篱的植物多样性及其鸟类多样性之间呈高度相关,并与生境质量直接相关。树篱中鸟类多样性较高,并且一些鸟类对某些类型的树篱有明显的偏好,这就对当地树篱优先保护与管理提出了要求。

关 键 词：avian diversity HEDGEROWS preference to hedgerow types species richness and similarity 

分 类 号：Q958[生物学—动物学]