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美国北达科他州易地放养的艾草松鸡的筑巢、育雏及夏季栖息地选择

Nesting, brood rearing, and summer habitat selection by translocated greater sage-grouse in North Dakota, USA.

作者信息

Lazenby Kade D, Coates Peter S, O'Neil Shawn T, Kohl Michel T, Dahlgren David K

机构信息

Department of Wildland Resources Jack H. Berryman Institute S. J. Quinney College of Natural Resources Utah State University Logan UT USA.

Western Ecological Research Center Dixon Field Station U.S. Geological Survey Dixon CA USA.

出版信息

Ecol Evol. 2021 Feb 19;11(6):2741-2760. doi: 10.1002/ece3.7228. eCollection 2021 Mar.

Abstract

Human enterprise has led to large-scale changes in landscapes and altered wildlife population distribution and abundance, necessitating efficient and effective conservation strategies for impacted species. Greater sage-grouse (; hereafter sage-grouse) are a widespread sagebrush ( spp.) obligate species that has experienced population declines since the mid-1900s resulting from habitat loss and expansion of anthropogenic features into sagebrush ecosystems. Habitat loss is especially evident in North Dakota, USA, on the northeastern fringe of sage-grouse' distribution, where a remnant population remains despite recent development of energy-related infrastructure. Resource managers in this region have determined a need to augment sage-grouse populations using translocation techniques that can be important management tools for countering species decline from range contraction. Although translocations are a common tool for wildlife management, very little research has evaluated habitat following translocation, to track individual behaviors such as habitat selection and fidelity to the release site, which can help inform habitat requirements to guide selection of future release sites. We provide an example where locations from previously released radio-marked sage-grouse are used in a resource selection function framework to evaluate habitat selection following translocation and identify areas of seasonal habitat to inform habitat management and potential restoration needs. We also evaluated possible changes in seasonal habitat since the late 1980s using spatial data provided by the Rangeland Analysis Platform coupled with resource selection modeling results. Our results serve as critical baseline information for habitat used by translocated individuals across life stages in this study area, and will inform future evaluations of population performance and potential for long-term recovery.

摘要

人类活动已导致景观发生大规模变化,改变了野生动物种群的分布和数量,因此需要针对受影响物种制定高效且有效的保护策略。艾草松鸡(以下简称松鸡)是一种广泛分布的依赖艾草(蒿属植物)生存的物种,自20世纪中叶以来,由于栖息地丧失以及人为设施向艾草生态系统的扩张,其种群数量一直在下降。栖息地丧失在美国北达科他州尤为明显,该州位于松鸡分布范围的东北边缘,尽管近期能源相关基础设施有所发展,但仍有一个残留种群。该地区的资源管理者已确定需要采用迁移技术来增加松鸡数量,这些技术可能是应对因分布范围缩小导致物种数量下降的重要管理工具。尽管迁移是野生动物管理的常用手段,但很少有研究评估迁移后的栖息地情况,以追踪个体行为,如栖息地选择和对放归地点的忠诚度,这有助于了解栖息地需求,从而指导未来放归地点的选择。我们提供了一个示例,在资源选择函数框架中使用先前放归的无线电标记松鸡的位置,以评估迁移后的栖息地选择,并确定季节性栖息地的区域,为栖息地管理和潜在的恢复需求提供参考。我们还利用牧场分析平台提供的空间数据以及资源选择建模结果,评估了自20世纪80年代末以来季节性栖息地可能发生的变化。我们的研究结果为该研究区域内迁移个体在不同生命阶段所使用的栖息地提供了关键的基线信息,并将为未来种群表现评估和长期恢复潜力提供参考。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/647c/7981223/01347c0be917/ECE3-11-2741-g005.jpg

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