干旱区生态环境知识资源中心(Arid): Bearding the scorpion in his den: desert isopods take risks to validate their 'landscape of fear' assessment

Arid

DOI	10.1111/oik.06477
	Bearding the scorpion in his den: desert isopods take risks to validate their 'landscape of fear' assessment
	Zaguri, Moshe; Hawlena, Dror
通讯作者	Zaguri, Moshe
来源期刊	OIKOS
ISSN	0030-1299
EISSN	1600-0706
出版年	2019
卷号	128 期号:10 页码:1458-1466
英文摘要	Animals balance the risk of predation against other vital needs by adjusting their spatial behavior to match spatiotemporal variation in predation risk. To map this 'landscape of fear', prey use evolutionary rules of thumbs that are associated with the activity and hunting efficiency of predators. In addition, prey acquire perceptual information about the presence, identity and state of potential predators and use these cues to focus their acute anti-predatory responses. Our goal was to explore if and how prey also use such perceptual information that decays with time to update their spatiotemporal risk assessment. We placed scorpions in freshly dug burrows and recorded the spatial activity and defense behavior of their isopod prey upon encountering the burrows straight after settling the scorpions and seven days later. To corroborate our understanding, we also examined the isopods' detailed reactions towards deserted scorpion burrows. The isopods reacted defensively to scorpion burrows during their first encounter. After seven days, proportionally more isopods approached the scorpion burrows on their way out for foraging and fewer isopods encountered it on their way back. No changes in the spatial activity were observed towards deserted burrows. In addition, on the eighth day, more isopods entered the risky area near the scorpion burrows when leaving their own burrow than on the first encounter. The results suggest that isopods used predator cues to readjust the 'landscape of fear'. Yet, rather than avoiding the dangerous areas altogether, the isopods implemented risky inspection behavior, validating whether the danger is actual. Our findings imply that inspection behavior toward predators can be used for future planning of prey spatial activity, offsetting possible 'information decay costs'.
英文关键词	desert isopods information decay costs landscape of fear predation risk predator inspection risk assessment
类型	Article
语种	英语
国家	Israel
开放获取类型	hybrid
收录类别	SCI-E
WOS记录号	WOS:000492447100008
WOS关键词	PREDATOR INSPECTION BEHAVIOR ; SYSTEMATIC SEARCH BEHAVIOR ; TIT PARUS-MAJOR ; HEMILEPISTUS-REAUMURI ; POECILIA-RETICULATA ; DYNAMIC LANDSCAPE ; INFORMATION ; DARES ; RECOGNITION ; STRATEGY
WOS类目	Ecology
WOS研究方向	Environmental Sciences & Ecology
EI主题词	2019-10-01
来源机构	Hebrew University of Jerusalem
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/310111
作者单位	Hebrew Univ Jerusalem, Risk Management Ecol Lab, Dept Ecol Evolut & Behav, Alexander Silberman Inst Life Sci, Edmond J Safra Campus Givat Ram, IL-91904 Jerusalem, Israel
推荐引用方式 GB/T 7714	Zaguri, Moshe,Hawlena, Dror. Bearding the scorpion in his den: desert isopods take risks to validate their 'landscape of fear' assessment[J]. Hebrew University of Jerusalem,2019,128(10):1458-1466.
APA	Zaguri, Moshe,&Hawlena, Dror.(2019).Bearding the scorpion in his den: desert isopods take risks to validate their 'landscape of fear' assessment.OIKOS,128(10),1458-1466.
MLA	Zaguri, Moshe,et al."Bearding the scorpion in his den: desert isopods take risks to validate their 'landscape of fear' assessment".OIKOS 128.10(2019):1458-1466.