Spatial Post-Breeding Segregation of 1st-Year and Adult Common Bush-Tanagers in a Guatemalan Cloud Forest

Q2 Environmental Science

Open Ecology Journal Pub Date : 2009-07-29 DOI:10.2174/1874213000902010047

S. Renner

引用次数: 1

Abstract

I captured birds in a central Guatemalan cloud forest (Sierra Yalijux) in two adjacent habitats, with different habitat structure to assess the influence of land use on bird populations. The regional population of Common Bush- Tanager (Chlorospingus ophthalmicus) showed a pattern of spatial separation of 1 st -year individuals vs. adults, a pattern not shown so far for any bird species. During the early post-breeding season, I captured similar numbers of adult individuals in both natural and young secondary forest (38 vs. 43), while 1 st -year individuals were captured mainly in young secondary vegetation (3 vs. 40). The findings indicate that inexperienced, young or less competitive individuals may use other habitats than adults, at least temporarily.

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危地马拉云雾森林一年生和成年普通灌木- tanager的空间繁殖后分离

我在危地马拉中部的云雾森林(Sierra Yalijux)的两个相邻栖息地捕获了鸟类，它们的栖息地结构不同，以评估土地利用对鸟类种群的影响。普通矮叶雀(Chlorospingus ophthalmicus)的区域种群表现出1年个体与成虫的空间分离格局，这种格局在其他鸟类种群中尚未出现。在繁殖后早期，我在天然林和次生林捕获的成虫数量相似(38对43)，而1年个体主要在次生林捕获(3对40)。研究结果表明，缺乏经验的、年轻的或缺乏竞争力的个体可能会比成年个体使用其他栖息地，至少是暂时的。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Open Ecology Journal Environmental Science-Environmental Science (all)

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期刊介绍： The Open Ecology Journal is an open access online journal which embraces the trans-disciplinary nature of ecology, seeking to publish original research articles, reviews, letters and guest edited single topic issues representing important scientific progress from all areas of ecology and its linkages to other fields. The journal also focuses on the basic principles of the natural environment and its conservation. Contributions may be based on any taxa, natural or artificial environments, biodiversity, spatial scales, temporal scales, and methods that advance this multi-faceted and dynamic science. The Open Ecology Journal also considers empirical and theoretical studies that promote the construction of a broadly applicable conceptual framework or that present rigorous tests or novel applications of ecological theory.