干旱区生态环境知识资源中心(Arid): Community structure of dasyurid marsupials in the arid Pilbara is consistent with a top-down system, their distribution and abundance depend on that of larger members of the guild

Arid

DOI	10.1016/j.jaridenv.2021.104680
	Community structure of dasyurid marsupials in the arid Pilbara is consistent with a top-down system, their distribution and abundance depend on that of larger members of the guild
	Hernandez-Santin, Lorna; Fisher, Diana O.
通讯作者	Hernandez-Santin, L (corresponding author)，Univ Queensland, Sch Biol Sci, St Lucia, Qld 4072, Australia.
来源期刊	JOURNAL OF ARID ENVIRONMENTS
ISSN	0140-1963
EISSN	1095-922X
出版年	2022
卷号	198
英文摘要	The semi-arid Pilbara region of Western Australia has an exceptionally large number of sympatric carnivorous marsupials (dasyurids). The multi-scale patchwork of sandplain grassland, riparian and rock outcrop habitats overlain with fine-scale variation in fire age may provide opportunities for exceptional niche differentiation. The goal of this study was to determine how dasyurids in the Pilbara partition these habitats in space and time. We focused on four species detectable on camera traps: northern quolls (largest), mulgaras, kalutas, and stripe-faced dunnarts (smallest). We found fine-scale partitioning in spatial and temporal patterns among sympatric species, and unusually, fire age specialisation in the smallest species, dunnarts, which were associated with recently burnt areas that had low prey availability. Kalutas were active throughout the 24-h period, with seasonal differences that support the hypothesis of energy preservation. Opposing habitat associations of kalutas and dunnarts are consistent with top-down pressures. We suggest that, in habitats where quolls and mulgaras are absent, kalutas may have experienced mesopredator release.
英文关键词	Habitat associations Activity periods Species overlap Community structure Top-down pressures
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000744234500005
WOS关键词	POPULATION-DYNAMICS ; DASYCERCUS-BLYTHI ; ACTIVITY PATTERNS ; NORTHERN QUOLL ; TORPOR USE ; DESERT ; MULGARA ; DIET ; CRISTICAUDA ; PREDATORS
WOS类目	Ecology ; Environmental Sciences
WOS研究方向	Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/376251
作者单位	[Hernandez-Santin, Lorna; Fisher, Diana O.] Univ Queensland, Sch Biol Sci, St Lucia, Qld 4072, Australia; [Hernandez-Santin, Lorna] Univ Queensland, Sustainable Minerals Inst, Ctr Mined Land Rehabil, St Lucia, Qld 4072, Australia
推荐引用方式 GB/T 7714	Hernandez-Santin, Lorna,Fisher, Diana O.. Community structure of dasyurid marsupials in the arid Pilbara is consistent with a top-down system, their distribution and abundance depend on that of larger members of the guild[J],2022,198.
APA	Hernandez-Santin, Lorna,&Fisher, Diana O..(2022).Community structure of dasyurid marsupials in the arid Pilbara is consistent with a top-down system, their distribution and abundance depend on that of larger members of the guild.JOURNAL OF ARID ENVIRONMENTS,198.
MLA	Hernandez-Santin, Lorna,et al."Community structure of dasyurid marsupials in the arid Pilbara is consistent with a top-down system, their distribution and abundance depend on that of larger members of the guild".JOURNAL OF ARID ENVIRONMENTS 198(2022).