干旱区生态环境知识资源中心(Arid): Optimal stopover model: A state-dependent habitat selection model for staging passerines

Arid

DOI	10.1111/1365-2656.13581
	Optimal stopover model: A state-dependent habitat selection model for staging passerines
	Domer, Adi; Vinepinsky, Ehud; Bouskila, Amos; Shochat, Eyal; Ovadia, Ofer
通讯作者	Domer, A (corresponding author), Ben Gurion Univ Negev, Dept Life Sci, Beer Sheva, Israel.
来源期刊	JOURNAL OF ANIMAL ECOLOGY
ISSN	0021-8790
EISSN	1365-2656
出版年	2021-09
英文摘要	During their seasonal migration, birds stage in areas comprising stopover sites of varying quality. Given that migrating birds have a limited information about their environment, they may land at a low-quality stopover site in which their fuel deposition rate (FDR) is low. Birds landing at such sites should decide either to extend their stopover duration or to quickly depart in search for a better site. These decisions, however, strongly depend on their body condition upon landing. To understand the decision-making process of passerines within a stopover area, comprising stopover sites of varying quality, prior to the crossing of a large ecological barrier, we constructed a state-dependent habitat selection model. The model assumes that even if migrating birds have an expectation of encountered area quality, they cannot control for their initial landing site. Once landing, movement between low- and high-quality stopover sites will occur only if the body condition of these birds is high to the extent that they can entail the energetic cost of movement. Birds in the model aim to maximize their fuel load at the end of the stopover period, to suffice for successfully crossing a large ecological barrier. The model is based on empirical data on autumn migrating Blackcaps Sylvia atricapilla, collected at two important stopover sites in the Negev desert of Israel. Migrating passerines staging at these two sites differ in their FDR and body condition. The model shows that the optimal behaviour when arriving at a low-quality stopover site is to abandon it quickly. However, as lean individuals cannot entail the costs of searching for an alternative site, they have no other choice but to stay there even if their chances to successfully cross the Sahara Desert ahead are low. Our model can be applied to other ecological systems. Proper use of this model may allow good assessment of stopover site quality, as indicated by the bird's FDR, regardless of specific site characteristics. Hence, it can help applying targeted management decisions regarding the maintenance of stopover sites or establishment of new ones.
英文关键词	bird migration fuel deposition rate site quality state variable model stochastic dynamic programing
类型	Article ; Early Access
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000695053000001
WOS关键词	OPTIMAL AVIAN MIGRATION ; MIGRANT REED WARBLERS ; BIRD MIGRATION ; FUEL STORES ; BODY-MASS ; DYNAMIC-MODEL ; ENERGY ; SITES ; TIME ; FAT
WOS类目	Ecology ; Zoology
WOS研究方向	Environmental Sciences & Ecology ; Zoology
来源机构	Ben-Gurion University of the Negev
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/363722
作者单位	[Domer, Adi; Vinepinsky, Ehud; Bouskila, Amos; Shochat, Eyal; Ovadia, Ofer] Ben Gurion Univ Negev, Dept Life Sci, Beer Sheva, Israel; [Bouskila, Amos] Ben Gurion Univ Negev, Jacob Blaustein Inst Desert Res, Mitrani Dept Desert Ecol, Midreshet Ben Gurion, Israel; [Shochat, Eyal] Yerucham Ctr Ornithol & Ecol, Yerucham, Israel
推荐引用方式 GB/T 7714	Domer, Adi,Vinepinsky, Ehud,Bouskila, Amos,et al. Optimal stopover model: A state-dependent habitat selection model for staging passerines[J]. Ben-Gurion University of the Negev,2021.
APA	Domer, Adi,Vinepinsky, Ehud,Bouskila, Amos,Shochat, Eyal,&Ovadia, Ofer.(2021).Optimal stopover model: A state-dependent habitat selection model for staging passerines.JOURNAL OF ANIMAL ECOLOGY.
MLA	Domer, Adi,et al."Optimal stopover model: A state-dependent habitat selection model for staging passerines".JOURNAL OF ANIMAL ECOLOGY (2021).