Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1111/cobi.12905 |
Habitat as a mediator of mesopredator-driven mammal extinction | |
McDonald, Peter J.1,2; Nano, Catherine E. M.1; Ward, Simon J.1; Stewart, Alistair1; Pavey, Chris R.3; Luck, Gary W.4; Dickman, Chris R.2 | |
通讯作者 | McDonald, Peter J. |
来源期刊 | CONSERVATION BIOLOGY
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ISSN | 0888-8892 |
EISSN | 1523-1739 |
出版年 | 2017 |
卷号 | 31期号:5页码:1183-1191 |
英文摘要 | A prevailing view in dryland systems is that mammals are constrained by the scarcity of fertile soils and primary productivity. An alternative view is that predation is a primary driver of mammal assemblages, especially in Australia, where 2 introduced mesopredatorsferal cat (Felis catus) and red fox (Vulpes vulpes)are responsible for severe declines of dryland mammals. We evaluated productivity and predation as drivers of native mammal assemblage structure in dryland Australia. We used new data from 90 sites to examine the divers of extant mammal species richness and reconstructed historic mammal assemblages to determine proportional loss of mammal species across broad habitat types (landform and vegetation communities). Predation was supported as a major driver of extant mammal richness, but its effect was strongly mediated by habitat. Areas that were rugged or had dense grass cover supported more mammal species than the more productive and topographically simple areas. Twelve species in the critical weight range (CWR) (35-5500 g) that is most vulnerable to mesopredator predation were extirpated from the continent’s central region, and the severity of loss of species correlated negatively with ruggedness and positively with productivity. Based on previous studies, we expect that habitat mediates predation from red foxes and feral cats because it affects these species’ densities and foraging efficiency. Large areas of rugged terrain provided vital refuge for Australian dryland mammals, and we predict such areas will support the persistence of CWR species in the face of ongoing mammal declines elsewhere in Australia. |
英文关键词 | feral cat mammal decline predation red fox refuge ruggedness |
类型 | Article |
语种 | 英语 |
国家 | Australia |
收录类别 | SCI-E |
WOS记录号 | WOS:000409319400021 |
WOS关键词 | CRITICAL WEIGHT RANGE ; ARID SOUTH-AUSTRALIA ; SEMIARID ECOSYSTEMS ; FERAL CATS ; PREDATION ; DECLINE ; PRODUCTIVITY ; FAUNA ; CONSERVATION ; MARSUPIALS |
WOS类目 | Biodiversity Conservation ; Ecology ; Environmental Sciences |
WOS研究方向 | Biodiversity & Conservation ; Environmental Sciences & Ecology |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/198193 |
作者单位 | 1.Dept Environm & Nat Resources, Flora & Fauna Div, Alice Springs, NT 0870, Australia; 2.Univ Sydney, Sch Life & Environm Sci, Desert Ecol Res Grp, Sydney, NSW 2006, Australia; 3.CSIRO Land & Water, POB 2111, Alice Springs, NT 0871, Australia; 4.Charles Sturt Univ, Inst Land Water & Soc, Albury, NSW 2640, Australia |
推荐引用方式 GB/T 7714 | McDonald, Peter J.,Nano, Catherine E. M.,Ward, Simon J.,et al. Habitat as a mediator of mesopredator-driven mammal extinction[J],2017,31(5):1183-1191. |
APA | McDonald, Peter J..,Nano, Catherine E. M..,Ward, Simon J..,Stewart, Alistair.,Pavey, Chris R..,...&Dickman, Chris R..(2017).Habitat as a mediator of mesopredator-driven mammal extinction.CONSERVATION BIOLOGY,31(5),1183-1191. |
MLA | McDonald, Peter J.,et al."Habitat as a mediator of mesopredator-driven mammal extinction".CONSERVATION BIOLOGY 31.5(2017):1183-1191. |
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