Are Boreal Ovenbirds, Seiurus aurocapilla, More Prone to Move across Inhospitable Landscapes in Alberta

Avian Conservation and Ecology

MarcB¹ 

[1] Canada Research Chair in Spatial and Landscape Ecology, D

关键词: Alberta;    field experiment;    forest fragmentation;    homing;    l;    scape ecology;    microevolution;    movement;    Quebec;    Seiurus aurocapilla;   

DOI  :  10.5751/ACE-00153-020201

学科分类：社会科学、人文和艺术（综合）

来源: Resilience Alliance Publications

【 摘 要 】

Population life-history traits such as the propensity to move across inhospitable landscapes should be shaped by exposure to landscape structure over evolutionary time. Thus, birds that recently evolved in landscapes fragmented by natural disturbances such as fire would be expected to show greater behavioral and morphological vagility relative to conspecifics that evolved under less patchy landscapes shaped by fewer and finer-scaled disturbances, i.e., the resilience hypothesis. These predictions are not new, but they remain largely untested, even for well-studied taxa such as neotropical migrant birds. We combined two experimental translocation, i.e., homing, studies to test whether Ovenbird, Seiurus aurocapilla, from the historically dynamic boreal mixedwood forest of north-central Alberta (n = 55) is more vagile than Ovenbird from historically less dynamic deciduous forest of southern Qu

【 授权许可】

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