『公告』 预祝您龙年大吉，万事如意, 过节期间， 大家如需数据服务，请拨打400 或直接添加客服微信，再祝大家龙年，心想事成。
关注我们 新浪 腾讯
数据服务 3S知识库 行业新闻
数据订购
销售咨询
电话：13911690905
微信：13911690905
邮箱： 2206260@qq.com
综合咨询：2206260
2863548516
2629602953
首页 -> 文献共享 -> 外文文献-> 正文

Abundance of Panamanian dry-forest birds along gradients of forest cover at multiple scales

作者：Jesse R. Lasky,Timothy H. Keitt   出版商：Journal of Tropical Ecology   出版日期：2009 年 1 月
Abstract:Community structure and species’ abundances may be strongly correlated to patterns of forest cover,although such patterns are poorly known for tropical dry-forest birds, especially for those in Panamanian dry forests.Birds were distance-sampled during point counts in five dry-forest fragments in Panama. Distance from point count to forest edge and forest coverage at three spatial scales (500, 1000 and 2000-m radius) were compared as covariate predictors of the abundance of avian species and guilds. Each covariate was selected in at least two models of species or guild abundance. Abundance patterns were consistent with previously reported habitat associations for only two of seven open-habitat or forest-preferring species that showed forest cover-abundance relationships. Null models best described the abundance of all forest species and the subset of uncommon forest species. Thus many of these species appear insensitive to the forest-cover gradients studied. Total abundance of open-habitat-preferring species increased in dry forests with increasing forest coverage within 500 m, suggesting that the relationship between their abundance and vegetation structure are spatial-scale and habitat dependent. Nectarivores had lower abundance as forest cover within 1000 m increased, supporting previous claims that this group is tolerant of forest edges.

本站共享资料便于大家学习，如您需要某些资料数据，可以注册向客服索取。
相关数据
暂无相关数据！
相关文章
暂无相关文献！
●  上一篇： Accuracy assessment of digitized and classified land cover data for wildlife habitat     ●  下一篇： 竞奏共鸣下的 “ 对话 ” ——— 从 《 地图 》 解读谭盾音乐    
声明：本站文献资源来源于网络，仅供学习交流使用，不得以任何形式用于商业用途，请于浏览后24小时内删除。如有疑问欢迎与我们联系，感谢您的支持。
      京ICP备2025132830号-1 京公网安备 号