《Wetland》杂志刊登“爱荷华州独特的沼泽鸟类与栖息地关系研究”

作者：Tyler M.Harms,Stephen J.Dinsmore

刊物：《Wetland》,2013年4月

关键词：鸟；鸊鷉；爱荷华州；沼泽鸟类；占用；秧鸡

摘要：在过去的一个世纪里，北美湿地面积的急剧减少导致许多沼泽鸟类数量锐减，因此为了保护沼泽鸟类，加强对剩余湿地的妥善管理是很有必要的。我们的目标是评估在不同尺度下，爱荷华州独特的沼泽鸟类物种的生境占用率对栖息地变量的响应。我们分别于2009年5月16日-7月15日以及2010年4月20日-7月10日对爱荷华州湿地的八种沼泽鸟类进行了呼叫广播调查。我们利用栖息地占据模型MARK对四类物种（花嘴鸊鷉、姬苇鳽、弗吉尼亚秧鸡、黑脸田鸡）进行了生境占用率预测。湿地规模对姬苇鳽的生境占用率有积极的影响，水深对花嘴鸊鷉和姬苇鳽的生境占用率有积极的影响，香蒲覆盖率也积极影响了弗吉尼亚秧鸡的生境占用率。了解爱荷华州独特的沼泽鸟类与栖息地之间的关系为我们进行湿地恢复和管理决策提供了指导，这将有助于我们保护这些鸟类的栖息地。

Habitat Associations of Secretive Marsh Birds in Iowa

Authors: Tyler M.Harms,Stephen J.Dinsmore

Journal:Wetland,April 2013

Key words: bittem；Grebe;Lowa;Marsh bird;Occupancy;Rail

Abstract: Drastic losses of wetland habitats across North America over the past century have resulted in population declines of many marsh birds therefore emphasizing the need for proper management of remaining wetlands for the conservation of marsh birds. Our objective was to evaluate the probability of site occupancy of secretive marsh birds in Iowa in response to habitat variables at multiple scales. We conducted call-broadcast surveys for eight species of marsh birds at wetlands in Iowa from 16 May–15 July 2009 and from 20 April–10 July 2010. We utilized occupancy models in Program MARK to estimate site occupancy probability based on habitat covariates for four species with the most detections (Pied-billed Grebe [Podilymbus podiceps], Least Bittern [Ixobrychus exilis], Virginia Rail [Rallus limicola], and Sora [Porzana carolina]). Wetland size had a positive effect on site occupancy for Least Bitterns, water depth positively affected site occupancy for Pied-billed Grebes and Least Bitterns, and percent cover of cattail positively affected site occupancy for Virginia Rails. Knowing habitat associations of secretive marsh birds in Iowa will allow us to provide guidance on wetland restoration and management decisions that will aid the conservation of these birds.

原文链接：http://link.springer.com/article/10.1007/s13157-013-0414-0