Arid
DOI10.1111/j.1461-0248.2010.01549.x
Driven to distraction: detecting the hidden costs of flea parasitism through foraging behaviour in gerbils
Raveh, Ashael1; Kotler, Burt P.2; Abramsky, Zvika1; Krasnov, Boris R.2
通讯作者Raveh, Ashael
来源期刊ECOLOGY LETTERS
ISSN1461-023X
EISSN1461-0248
出版年2011
卷号14期号:1页码:47-51
英文摘要

P>Gerbilline rodents such as Allenby’s gerbils (Gerbillus andersoni allenbyi), when parasitized by fleas such as Synosternus cleopatrae pyramidis, devote long hours of grooming to remove the ectoparasites. Yet no detrimental energetic or immunological effects of the ectoparasites have been found in adult Allenby’s gerbil. Why should gerbils go to such trouble? We tested for the various ways that fleas can negatively affect gerbils by manipulating flea infestation on gerbils and the presence of a fox. We demonstrate that gerbils responded to fleas by leaving resource patches at higher giving-up densities. Furthermore, they stayed in those resource patches less time and left them at higher quitting harvest rates so long as a fox was also present. When flea-ridden, gerbils also abandoned using vigilance to manage risk and relied mainly on time allocation. Thus, having fleas imposed a foraging cost similar in nature to that arising from the risk of predation from foxes and may be even larger in magnitude. More than that, the presence of fleas acted as a magnifier of foraging costs, especially those arising from the risk of predation. The fleas reduced the gerbils’ foraging aptitude and altered how they went about managing risk of predation. We hypothesize that fleas reduce the attention that gerbils otherwise have for foraging and predator detection. We suggest that this is the major cost of ectoparasitism.


英文关键词Ectoparasites fleas foraging aptitude gerbils giving-up densities optimal patch use risk management time allocation tradeoffs of food and safety vigilance
类型Article
语种英语
国家Israel
收录类别SCI-E
WOS记录号WOS:000285302500007
WOS关键词LIMITED ATTENTION ; PREDATION RISK ; PATCH USE ; DESERT RODENT ; INFESTATION ; CONSEQUENCES ; VIGILANCE ; HOST ; PREY ; ASSEMBLAGES
WOS类目Ecology
WOS研究方向Environmental Sciences & Ecology
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/2XILL650/167848
作者单位1.Ben Gurion Univ Negev, Dept Life Sci, IL-84105 Beer Sheva, Israel;
2.Ben Gurion Univ Negev, Jacob Blaustein Inst Desert Res, Mitrani Dept Desert Ecol, IL-84105 Midreshet Ben Gurion, Ben Gurion, Israel
推荐引用方式
GB/T 7714
Raveh, Ashael,Kotler, Burt P.,Abramsky, Zvika,et al. Driven to distraction: detecting the hidden costs of flea parasitism through foraging behaviour in gerbils[J]. Ben-Gurion University of the Negev,2011,14(1):47-51.
APA Raveh, Ashael,Kotler, Burt P.,Abramsky, Zvika,&Krasnov, Boris R..(2011).Driven to distraction: detecting the hidden costs of flea parasitism through foraging behaviour in gerbils.ECOLOGY LETTERS,14(1),47-51.
MLA Raveh, Ashael,et al."Driven to distraction: detecting the hidden costs of flea parasitism through foraging behaviour in gerbils".ECOLOGY LETTERS 14.1(2011):47-51.
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