DOI: 10.1111/gcb.13846
论文题名: Identifying keystone habitats with a mosaic approach can improve biodiversity conservation in disturbed ecosystems
作者: Hitchman S.M. ; Mather M.E. ; Smith J.M. ; Fencl J.S.
刊名: Global Change Biology
ISSN: 13541013
出版年: 2017
语种: 英语
英文关键词: Biodiversity
; Conservation
; Human impacts
; Keystone habitat
; Stream fish
英文摘要: Conserving native biodiversity in the face of human- and climate-related impacts is a challenging and globally important ecological problem that requires an understanding of spatially connected, organismal-habitat relationships. Globally, a suite of disturbances (e.g., agriculture, urbanization, climate change) degrades habitats and threatens biodiversity. A mosaic approach (in which connected, interacting collections of juxtaposed habitat patches are examined) provides a scientific foundation for addressing many disturbance-related, ecologically based conservation problems. For example, if specific habitat types disproportionately increase biodiversity, these keystones should be incorporated into research and management plans. Our sampling of fish biodiversity and aquatic habitat along ten 3-km sites within the Upper Neosho River subdrainage, KS, from June-August 2013 yielded three generalizable ecological insights. First, specific types of mesohabitat patches (i.e., pool, riffle, run, and glide) were physically distinct and created unique mosaics of mesohabitats that varied across sites. Second, species richness was higher in riffle mesohabitats when mesohabitat size reflected field availability. Furthermore, habitat mosaics that included more riffles had greater habitat diversity and more fish species. Thus, riffles (<5% of sampled area) acted as keystone habitats. Third, additional conceptual development, which we initiate here, can broaden the identification of keystone habitats across ecosystems and further operationalize this concept for research and conservation. Thus, adopting a mosaic approach can increase scientific understanding of organismal-habitat relationships, maintain natural biodiversity, advance spatial ecology, and facilitate effective conservation of native biodiversity in human-altered ecosystems. © 2017 John Wiley & Sons Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/61094
Appears in Collections: 影响、适应和脆弱性
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作者单位: Kansas Cooperative Fish and Wildlife Research Unit Division of Biology Kansas State University Manhattan, KS USA; U. S. Geological Survey Kansas Cooperative Fish and Wildlife Research Unit Division of Biology Kansas State University Manhattan, KS USA; ICF Seattle, WA USA; School of Aquatic and Fishery Sciences University of Washington Seattle, WA USA
Recommended Citation:
Hitchman S.M.,Mather M.E.,Smith J.M.,et al. Identifying keystone habitats with a mosaic approach can improve biodiversity conservation in disturbed ecosystems[J]. Global Change Biology,2017-01-01