DOI: 10.1111/gcb.14162
Scopus记录号: 2-s2.0-85046041805
论文题名: Conserving rare species can have high opportunity costs for common species
作者: Neeson T.M. ; Doran P.J. ; Ferris M.C. ; Fitzpatrick K.B. ; Herbert M. ; Khoury M. ; Moody A.T. ; Ross J. ; Yacobson E. ; McIntyre P.B.
刊名: Global Change Biology
ISSN: 13541013
出版年: 2018
卷: 24, 期: 8 起始页码: 3862
结束页码: 3872
语种: 英语
英文关键词: commonness
; connectivity
; conservation
; freshwater
; prioritization
; rarity
Scopus关键词: connectivity
; fish
; freshwater ecosystem
; prioritization
; rare species
; rarity
; species conservation
; Great Lakes [North America]
; Pisces
英文摘要: Conservation practitioners face difficult choices in apportioning limited resources between rare species (to ensure their existence) and common species (to ensure their abundance and ecosystem contributions). We quantified the opportunity costs of conserving rare species of migratory fishes in the context of removing dams and retrofitting road culverts across 1,883 tributaries of the North American Great Lakes. Our optimization models show that maximizing total habitat gains across species can be very efficient in terms of benefits achieved per dollar spent, but disproportionately benefits common species. Conservation approaches that target rare species, or that ensure some benefits for every species (i.e., complementarity) enable strategic allocation of resources among species but reduce aggregate habitat gains. Thus, small habitat gains for the rarest species necessarily come at the expense of more than 20 times as much habitat for common ones. These opportunity costs are likely to occur in many ecosystems because range limits and conservation costs often vary widely among species. Given that common species worldwide are declining more rapidly than rare ones within major taxa, our findings provide incentive for triage among multiple worthy conservation targets. © 2018 John Wiley & Sons Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/110308
Appears in Collections: 影响、适应和脆弱性 气候变化事实与影响
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作者单位: Department of Geography and Environmental Sustainability, University of Oklahoma, Norman, OK, United States; The Nature Conservancy, Lansing, MI, United States; Department of Computer Science, University of Wisconsin, Madison, WI, United States; The Nature Conservancy, Chicago, IL, United States; Center for Limnology, University of Wisconsin, Madison, WI, United States
Recommended Citation:
Neeson T.M.,Doran P.J.,Ferris M.C.,et al. Conserving rare species can have high opportunity costs for common species[J]. Global Change Biology,2018-01-01,24(8)