干旱区生态环境知识资源中心(Arid): Edge effects created by fenced conservation reserves benefit an invasive mesopredator

Arid

DOI	10.1071/WR19181
	Edge effects created by fenced conservation reserves benefit an invasive mesopredator
	McGregor, Hugh; Read, John; Johnson, Christopher N.; Legge, Sarah; Hill, Brydie; Moseby, Katherine
通讯作者	McGregor, H
来源期刊	WILDLIFE RESEARCH
ISSN	1035-3712
EISSN	1448-5494
出版年	2020
卷号	47 期号:8 页码:677-685
英文摘要	Context. Fenced reserves from which invasive predators are removed are increasingly used as a conservation management tool, because they provide safe havens for susceptible threatened species, and create dense populations of native wildlife that could act as a source population for recolonising the surrounding landscape. However, the latter effect might also act as a food source, and promote high densities of invasive predators on the edges of such reserves. Aims. Our study aimed to determine whether activity of the feral cat is greater around the edges of a fenced conservation reserve, Arid Recovery, in northern South Australia. This reserve has abundant native rodents that move through the fence into the surrounding landscape. Methods. We investigated (1) whether feral cats were increasingly likely to be detected on track transects closer to the fence over time as populations of native rodents increased inside the reserve, (2) whether native rodents were more likely to be found in the stomachs of cats caught close to the reserve edge, and (3) whether individual cats selectively hunted on the reserve fence compared with two other similar fences, on the basis of GPS movement data. Key results. We found that (1) detection rates of feral cats on the edges of a fenced reserve increased through time as populations of native rodents increased inside the reserve, (2) native rodents were far more likely to be found in the stomach of cats collected at the reserve edge than in the stomachs of cats far from the reserve edge, and (3) GPS tracking of cat movements showed a selection for the reserve fence edge, but not for similar fences away from the reserve. Conclusions. Invasive predators such as feral cats are able to focus their movements and activity to where prey availability is greatest, including the edges of fenced conservation reserves. This limits the capacity of reserves to function as source areas from which animals can recolonise the surrounding landscape, and increases predation pressure on populations of other species living on the reserve edge.
英文关键词	conservation management invasive species wildlife management
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000548530000001
WOS关键词	FERAL CATS ; RABBIT ; REINTRODUCTION ; POPULATIONS ; PREDATION ; MOVEMENT ; RECOVERY ; REPTILE ; MAMMALS ; SCOTIA
WOS类目	Ecology ; Zoology
WOS研究方向	Environmental Sciences & Ecology ; Zoology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/325033
作者单位	[McGregor, Hugh; Johnson, Christopher N.; Legge, Sarah] Univ Queensland, Ctr Biodivers & Conservat Sci, Natl Environm Sci Program Threatened Species Reco, St Lucia, Qld 4075, Australia; [McGregor, Hugh; Johnson, Christopher N.] Univ Tasmania, Sch Nat Sci, Private Bag 55, Hobart, Tas 7001, Australia; [McGregor, Hugh; Hill, Brydie; Moseby, Katherine] Arid Recovery, POB 147, Roxby Downs, SA 5725, Australia; [Read, John] Ecol Horizons Pty Ltd, POB 207, Kimba, SA 5641, Australia; [Hill, Brydie] Dept Environm & Nat Resources, Flora & Fauna Div, POB 496, Palmerston, NT 0830, Australia; [Moseby, Katherine] Univ New South Wales, Sydney, NSW 2052, Australia
推荐引用方式 GB/T 7714	McGregor, Hugh,Read, John,Johnson, Christopher N.,et al. Edge effects created by fenced conservation reserves benefit an invasive mesopredator[J],2020,47(8):677-685.
APA	McGregor, Hugh,Read, John,Johnson, Christopher N.,Legge, Sarah,Hill, Brydie,&Moseby, Katherine.(2020).Edge effects created by fenced conservation reserves benefit an invasive mesopredator.WILDLIFE RESEARCH,47(8),677-685.
MLA	McGregor, Hugh,et al."Edge effects created by fenced conservation reserves benefit an invasive mesopredator".WILDLIFE RESEARCH 47.8(2020):677-685.