干旱区生态环境知识资源中心(Arid): Indirect commensalism between an introduced apex predator and a native avian predator

Arid

DOI	10.1007/s10531-019-01787-8
	Indirect commensalism between an introduced apex predator and a native avian predator
	Rees, James D.; Rees, Glenyss L.; Kingsford, Richard T.; Letnic, Mike
通讯作者	Rees, James D.
来源期刊	BIODIVERSITY AND CONSERVATION
ISSN	0960-3115
EISSN	1572-9710
出版年	2019
卷号	28 期号:10 页码:2687-2700
英文摘要	In ecosystems, some organisms facilitate others indirectly, by interacting with one or more common mediator organisms. Thus, the indirect effects of introducing or removing species can be resonant, sometimes leading to successional extinctions. The dingo (Canis dingo) is the apex predator in Australian deserts and was introduced to the continent between 3000 and 5000years ago. Dingoes suppress the abundances of introduced mesopredators, the red fox (Vulpes vulpes) and feral cat (Felis catus) and in so doing mitigate small mammal declines wreaked by these mesopredators. Given the positive association between the abundances of dingoes and small mammals, we predicted that dingoes indirectly facilitate a specialised native predator of small mammals, the Barn owl, Tyto alba. We tested our prediction by monitoring the abundances of dingoes, foxes, cats, small mammals and barn owls and investigating barn owl diets in areas where dingoes were common versus areas where dingoes were functionally extinct on either side of the dingo barrier fence (DBF) in the Strzelecki Desert. Foxes and cats were less abundant in areas where dingoes were common. Conversely, small mammals and barn owls were more abundant where dingoes were common. Owls in areas where dingoes were common fed almost exclusively on small mammals, but owls in areas where dingoes were functionally extinct fed on greater proportion of birds and invertebrates. The findings of our study provide evidence that an introduced apex predator may indirectly facilitate a native predator and illustrates the myriad of far-reaching indirect effects that can result from apex predator suppression.
英文关键词	Facilitation Commensalism Indirect effects Mesopredator release Dingo Tyto Trophic cascade Apex predator
类型	Article
语种	英语
国家	Australia
收录类别	SCI-E
WOS记录号	WOS:000474368900012
WOS关键词	INDIRECT FACILITATION ; CONSERVATION CONCERN ; WESTERN DIVISION ; FUNCTIONAL EXTINCTION ; TYTO-ALBA ; BARN OWL ; AUSTRALIA ; RODENT ; GRANIVORY ; INVASION
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/2XILL650/214597
作者单位	Univ New South Wales, Ctr Ecosyst Res, Sydney, NSW 2052, Australia
推荐引用方式 GB/T 7714	Rees, James D.,Rees, Glenyss L.,Kingsford, Richard T.,et al. Indirect commensalism between an introduced apex predator and a native avian predator[J],2019,28(10):2687-2700.
APA	Rees, James D.,Rees, Glenyss L.,Kingsford, Richard T.,&Letnic, Mike.(2019).Indirect commensalism between an introduced apex predator and a native avian predator.BIODIVERSITY AND CONSERVATION,28(10),2687-2700.
MLA	Rees, James D.,et al."Indirect commensalism between an introduced apex predator and a native avian predator".BIODIVERSITY AND CONSERVATION 28.10(2019):2687-2700.