干旱区生态环境知识资源中心(Arid): Resource pulses affect prey selection and reduce dietary diversity of dingoes in arid Australia

Arid

DOI	10.1111/mam.12157
	Resource pulses affect prey selection and reduce dietary diversity of dingoes in arid Australia
	Tatler, Jack 1; Prowse, Thomas A. A.2; Roshier, David A.3,4; Allen, Benjamin L.5; Cassey, Phillip 1
通讯作者	Tatler, Jack
来源期刊	MAMMAL REVIEW
ISSN	0305-1838
EISSN	1365-2907
出版年	2019
卷号	49 期号:3 页码:263-275
英文摘要	In Australia, the dingo Canis lupus dingo is the largest terrestrial predator. Dingoes contribute to ecological processes and functions throughout their continental geographic range. Their generalist diet enables daily energetic requirements to be met even in the resource-limited deserts of central Australia, where irregular rainfall drives extreme fluctuations in mammal assemblages. Given that predation is a primary driver of declining mammal populations and failed reintroductions, it is necessary to understand the dietary intake of the continent's apex predator if conservation outcomes are to be achieved. We performed a meta-analysis of the mammalian composition of the dingo's diet throughout Australia's arid zone, an area covering c. 5.4millionkm(2). We used 25 data sets from 11 studies to measure the effects of resource booms and anthropogenic disturbance (pastoralism) on diet. We explored whether the probability of prey species occurring in the diet was related to the size of the prey or to prevailing conditions. We also investigated the similarities in diet between dingo populations from across the arid zone, and how dietary overlap was affected by opposing land uses. Dingoes primarily consumed medium-sized (35-5500g) and large (>5500g) mammals, whereas most small mammals (<35g) were consumed infrequently, or not at all. The composition of the diet changed dramatically during resource booms to exploit irruptive prey species such as long-haired rats Rattus villosissimus (native; 144g) and house mice Mus musculus (introduced; 20g). During resource booms, the consumption of large mammals decreased significantly, whereas the occurrence in the diet of medium-sized mammals remained high. The diversity of species consumed by dingoes was significantly lower during boom periods than during non-boom periods. The dingo's heightened consumption of hyper-abundant species has the potential to release many non-target species from direct predation pressure during boom times. This could be advantageous for remnant and reintroduced populations of mammals, which are especially susceptible to predation.
英文关键词	arid zone critical weight range diet mammal prey preference
类型	Review
语种	英语
国家	Australia
收录类别	SCI-E
WOS记录号	WOS:000474845500005
WOS关键词	WESTERN-AUSTRALIA ; FEEDING-BEHAVIOR ; PREDATION ; BIODIVERSITY ; RAINFALL ; ECOLOGY ; DECLINE ; POPULATIONS ; EXTINCTION ; PATTERNS
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/2XILL650/217528
作者单位	1.Univ Adelaide, Sch Biol Sci, Adelaide, SA 5005, Australia; 2.Univ Adelaide, Sch Math Sci, Adelaide, SA 5005, Australia; 3.Australian Wildlife Conservancy, POB 8070, Subiaco East, WA 6008, Australia; 4.Univ New South Wales, Australia Ctr Ecosyst Sci, Sydney, NSW 2052, Australia; 5.Univ Southern Queensland, Inst Life Sci & Environm, Toowoomba, Qld 4350, Australia
推荐引用方式 GB/T 7714	Tatler, Jack,Prowse, Thomas A. A.,Roshier, David A.,et al. Resource pulses affect prey selection and reduce dietary diversity of dingoes in arid Australia[J],2019,49(3):263-275.
APA	Tatler, Jack,Prowse, Thomas A. A.,Roshier, David A.,Allen, Benjamin L.,&Cassey, Phillip.(2019).Resource pulses affect prey selection and reduce dietary diversity of dingoes in arid Australia.MAMMAL REVIEW,49(3),263-275.
MLA	Tatler, Jack,et al."Resource pulses affect prey selection and reduce dietary diversity of dingoes in arid Australia".MAMMAL REVIEW 49.3(2019):263-275.