干旱区生态环境知识资源中心(Arid): I don't like crickets, I love them: invertebrates are an important prey source for varanid lizards

Arid

DOI	10.1111/jzo.12750
	I don't like crickets, I love them: invertebrates are an important prey source for varanid lizards
	Cross, S. L.1; Craig, M. D.2,3; Tomlinson, S.1,4; Bateman, P. W.5
通讯作者	Cross, S. L.
来源期刊	JOURNAL OF ZOOLOGY
ISSN	0952-8369
EISSN	1469-7998
出版年	2020
卷号	310 期号:4 页码:323-333
英文摘要	Minimal annual rainfall in arid environments results in low productivity ecosystems with fluctuating food availability. Large mammalian predators that require frequent consumption of vertebrate prey tend to be less abundant in desert environments; however, such environments often support numerous large-bodied carnivorous reptiles. Diet is a fundamental component of an animal's ecology, and we explore the diets of three coexisting, sympatric Varanus species occurring in arid Australia: V. tristis, V. gouldii and V. panoptes. We hypothesized that the diet of varanids living in arid environments would primarily consist of relatively abundant invertebrate prey, and that vertebrate prey items would largely be limited to opportunistically consumed mammalian carrion and small reptilian species. All three Varanus species had high dietary overlap and broad, generalist diets. Invertebrate prey, particularly Orthoptera, were key to the diets of all three species. Vertebrate prey was infrequently consumed by all three Varanus species; however, when consumed, tended to comprise small reptilian species and mammalian carrion. Unlike large mammalian predators, varanids can survive on invertebrate prey and infrequent feeds and can aestivate when conditions become unfavourable, contributing to their success in arid environments.
英文关键词	feeding ecology reptile resource partitioning niche overlap Varanus diet prey arid environments
类型	Article
语种	英语
国家	Australia
收录类别	SCI-E
WOS记录号	WOS:000499281700001
WOS关键词	REPRODUCTIVE-BIOLOGY ; FEEDING ECOLOGY ; RESOURCE PULSES ; ARID AUSTRALIA ; NICHE OVERLAP ; FELIS-CATUS ; FOOD-HABITS ; DIET ; DESERT ; FOXES
WOS类目	Zoology
WOS研究方向	Zoology
EI主题词	2019-11-29
来源机构	University of Western Australia
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/311017
作者单位	1.Curtin Univ, ARC Ctr Mine Site Restorat, Sch Mol & Life Sci, Kent St, Perth, WA 6102, Australia; 2.Univ Western Australia, Sch Biol Sci, Crawley, WA, Australia; 3.Murdoch Univ, Sch Vet & Life Sci, Murdoch, WA, Australia; 4.Kings Pk Sci, Dept Biodivers Conservat & Attract, Kings Pk, WA, Australia; 5.Curtin Univ, Sch Mol & Life Sci, Behav Ecol Lab, Perth, WA, Australia
推荐引用方式 GB/T 7714	Cross, S. L.,Craig, M. D.,Tomlinson, S.,et al. I don't like crickets, I love them: invertebrates are an important prey source for varanid lizards[J]. University of Western Australia,2020,310(4):323-333.
APA	Cross, S. L.,Craig, M. D.,Tomlinson, S.,&Bateman, P. W..(2020).I don't like crickets, I love them: invertebrates are an important prey source for varanid lizards.JOURNAL OF ZOOLOGY,310(4),323-333.
MLA	Cross, S. L.,et al."I don't like crickets, I love them: invertebrates are an important prey source for varanid lizards".JOURNAL OF ZOOLOGY 310.4(2020):323-333.