干旱区生态环境知识资源中心(Arid): Class Conflict: Diffuse Competition between Mammalian and Reptilian Predators

Arid

DOI	10.3390/d12090355
	Class Conflict: Diffuse Competition between Mammalian and Reptilian Predators
	Dickman, Christopher R.; Greenville, Aaron C.; Wardle, Glenda M.; Bytheway, Jenna P.
通讯作者	Dickman, CR
来源期刊	DIVERSITY-BASEL
EISSN	1424-2818
出版年	2020
卷号	12 期号:9
英文摘要	(1) Diffuse competition affects per capita rates of population increase among species that exploit similar resources, and thus can be an important structuring force in ecological communities. Diffuse competition has traditionally been studied within taxonomically similar groups, although distantly related intraguild species are likely also to compete to some degree. (2) We assessed diffuse competition between mammalian and reptilian predators at sites in central Australia over 24 years. Specifically, we investigated the effect of dasyurid marsupial abundance on the diet breadth of three groups of lizards (nocturnal dietary generalists, diurnal dietary generalists and dietary specialists). (3) Nocturnal generalist lizards had progressively narrower diets as dasyurid abundance increased. The diet breadth of diurnal generalist lizards was unaffected by overall dasyurid abundance, but was restricted by that of the largest dasyurid species (Dasycercus blythi). Ant- and termite-specialist lizards were unaffected by dasyurid abundance. (4) Diffuse competition, mediated by interference, between dasyurids and nocturnal generalist lizards appears to have strong effects on these lizards, and is the first such between-class interaction to be described. Diffuse interactions may be widespread in natural communities, and merit further investigation among other disparate taxon groups that occur in the same ecological guilds.
英文关键词	diffuse competition dietary restriction dasyurid marsupial desert lizard scat analysis intraguild predation interference competition
类型	Article
语种	英语
开放获取类型	gold
收录类别	SCI-E
WOS记录号	WOS:000581286100001
WOS关键词	ARID AUSTRALIA ; INTERSPECIFIC COMPETITION ; INSECTIVOROUS MARSUPIALS ; BEHAVIORAL MECHANISMS ; INTRAGUILD PREDATION ; DASYURID MARSUPIALS ; POPULATION-DYNAMICS ; COMMUNITY STRUCTURE ; SIMPSON DESERT ; BODY-SIZE
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/2XILL650/327046
作者单位	[Dickman, Christopher R.; Greenville, Aaron C.; Wardle, Glenda M.; Bytheway, Jenna P.] Univ Sydney, Sch Life & Environm Sci, Desert Ecol Res Grp, Camperdown, NSW 2006, Australia
推荐引用方式 GB/T 7714	Dickman, Christopher R.,Greenville, Aaron C.,Wardle, Glenda M.,et al. Class Conflict: Diffuse Competition between Mammalian and Reptilian Predators[J],2020,12(9).
APA	Dickman, Christopher R.,Greenville, Aaron C.,Wardle, Glenda M.,&Bytheway, Jenna P..(2020).Class Conflict: Diffuse Competition between Mammalian and Reptilian Predators.DIVERSITY-BASEL,12(9).
MLA	Dickman, Christopher R.,et al."Class Conflict: Diffuse Competition between Mammalian and Reptilian Predators".DIVERSITY-BASEL 12.9(2020).