Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1086/699840 |
Considerations Used by Desert Isopods to Assess Scorpion Predation Risk | |
Zaguri, Moshe; Zohar, Yaara; Hawlena, Dror | |
通讯作者 | Zaguri, Moshe |
来源期刊 | AMERICAN NATURALIST
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ISSN | 0003-0147 |
EISSN | 1537-5323 |
出版年 | 2018 |
卷号 | 192期号:5页码:630-643 |
英文摘要 | Animals adjust behaviors to balance changes in predation risk against other vital needs. Animals must therefore collect sensory information and use a complex risk-assessment process that estimates risks and weighs costs and benefits entailed in different reactions. Studying this cognitive process is challenging, especially in nature, because it requires inferring sensory abilities and conscious decisions from behavioral reactions. Our goal was to address this empirical challenge by implementing psychophysical principles to field research that explores considerations used by desert isopods (Hemilepistus reaumuri) to assess the risk of scorpions that hunt exclusively from within their burrows. We introduced various combinations of chemical and physical cues to the vicinity of isopod burrows and recorded their detailed reactions on first encountering the cues. The isopods reacted defensively to scorpion odor but only when accompanied with excavated soil or other odors typically found near scorpion burrows. Isopods also reacted defensively to piles of excavated soil without scorpion olfactory cues, suggesting that isopods take precautions even against physical disturbances that do not necessarily reflect predator activity. Simultaneous presence of different cues provoked graded responses, possibly reflecting an additive increase in risk estimation. We conclude that wild isopods use defensive reactions toward environmental signals only when the integrated perceptual information implies an active scorpion burrow or when they lack data to refute this possibility. |
英文关键词 | desert isopods escape behavior predation risk predator-prey interactions risk-allocation hypothesis risk assessment |
类型 | Article |
语种 | 英语 |
国家 | Israel |
收录类别 | SCI-E |
WOS记录号 | WOS:000447599300010 |
WOS关键词 | HEMILEPISTUS-REAUMURI ; CHEMICAL CUES ; ECOSYSTEM FUNCTION ; HUNTING MODE ; NOTOPHTHALMUS-VIRIDESCENS ; SYSTEMATIC SEARCH ; PREY INTERACTIONS ; DIET CUES ; RESPONSES ; BEHAVIOR |
WOS类目 | Ecology ; Evolutionary Biology |
WOS研究方向 | Environmental Sciences & Ecology ; Evolutionary Biology |
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/2XILL650/207514 |
作者单位 | Hebrew Univ Jerusalem, Alexander Silberman Inst Life Sci, Dept Ecol Evolut & Behav, Risk Management Ecol Lab, Edmond J Safra Campus Givat Ram, IL-91904 Jerusalem, Israel |
推荐引用方式 GB/T 7714 | Zaguri, Moshe,Zohar, Yaara,Hawlena, Dror. Considerations Used by Desert Isopods to Assess Scorpion Predation Risk[J]. Hebrew University of Jerusalem,2018,192(5):630-643. |
APA | Zaguri, Moshe,Zohar, Yaara,&Hawlena, Dror.(2018).Considerations Used by Desert Isopods to Assess Scorpion Predation Risk.AMERICAN NATURALIST,192(5),630-643. |
MLA | Zaguri, Moshe,et al."Considerations Used by Desert Isopods to Assess Scorpion Predation Risk".AMERICAN NATURALIST 192.5(2018):630-643. |
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