干旱区生态环境知识资源中心(Arid): Changes in desert avifauna associated with the functional extinction of a terrestrial top predator

Arid

DOI	10.1111/ecog.03661
	Changes in desert avifauna associated with the functional extinction of a terrestrial top predator
	Rees, James D.; Kingsford, Richard T.; Letnic, Mike
通讯作者	Rees, James D.
来源期刊	ECOGRAPHY
ISSN	0906-7590
EISSN	1600-0587
出版年	2019
卷号	42 期号:1 页码:67-76
英文摘要	We investigated how long-term suppression of populations of a top predator, the dingo Canis dingo, affected composition of sympatric avifauna in Australian deserts, by surveying bird assemblages across similar to 80 000 km(2) of arid dune-fields on either side of the Dingo Barrier Fence (DBF; a 5614 km-long fence separating ecosystems in which dingoes are abundant from ecosystems in which dingoes are functionally extinct). Using fourth-corner modelling, incorporating species' traits, we identified apparent declines of sedentary birds that nest in low vegetation and small birds that feed primarily on grass seed, and increases in scavenging birds associated with the functional extinction of dingoes. Occupancy differed between sites inside and outside the DBF in 13 bird species. We hypothesise that these differences in bird assemblages across the DBF result, in part, from increases in kangaroos Macropus spp. and red foxes Vulpes vulpes in arid landscapes where dingoes have been removed. Our study provides evidence that the functional extinction of a large terrestrial predator has had pervasive ecosystem effects, including shifts in composition of avian assemblages.
英文关键词	apex predator Canis dingo indirect effects
类型	Article
语种	英语
国家	Australia
收录类别	SCI-E
WOS记录号	WOS:000454810100007
WOS关键词	MESOPREDATOR RELEASE ; NEST PREDATION ; APEX PREDATOR ; BIRDS ; AUSTRALIA ; UNDERSTAND ; ABUNDANCE ; PATTERNS ; SUPPRESS ; DECLINES
WOS类目	Biodiversity Conservation ; Ecology
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/2XILL650/215121
作者单位	Univ New South Wales, Ctr Ecosyst Sci, Sydney, NSW, Australia
推荐引用方式 GB/T 7714	Rees, James D.,Kingsford, Richard T.,Letnic, Mike. Changes in desert avifauna associated with the functional extinction of a terrestrial top predator[J],2019,42(1):67-76.
APA	Rees, James D.,Kingsford, Richard T.,&Letnic, Mike.(2019).Changes in desert avifauna associated with the functional extinction of a terrestrial top predator.ECOGRAPHY,42(1),67-76.
MLA	Rees, James D.,et al."Changes in desert avifauna associated with the functional extinction of a terrestrial top predator".ECOGRAPHY 42.1(2019):67-76.