Arid
DOI10.1242/jeb.066878
Digesting blood of an auxiliary host in fleas: effect of phylogenetic distance from a principal host
Khokhlova, Irina S.2; Fielden, Laura J.3; Degen, A. Allan2; Krasnov, Boris R.1
通讯作者Krasnov, Boris R.
来源期刊JOURNAL OF EXPERIMENTAL BIOLOGY
ISSN0022-0949
出版年2012
卷号215期号:8页码:1259-1265
英文摘要

Fleas are haematophagous ectoparasites that exhibit varying degrees of host specificity. Flea abundance is highest on principal hosts and lower on auxiliary hosts but may vary greatly among auxiliary hosts. We investigated the feeding and energy expenditure for digestion in two flea species Parapulex chephrenis and Xenopsylla ramesis on a principal host (Acomys cahirinus and Meriones crassus, respectively) and eight auxiliary host species. We predicted that fleas would perform better - that is (i) a higher proportion of fleas would take a blood meal, (ii) fleas would take larger blood meals and (iii) fleas would spend less energy on digestion - if they fed on (i) a principal host compared with an auxiliary host and (ii) an auxiliary host phylogenetically close to a principal host compared with an auxiliary host phylogenetically distant from a principal host. Energy costs of digestion were estimated using CO2 emission and represented energy cost during the first stage of blood digestion. Contrary to our predictions, fleas did not always perform better on a principal than on an auxiliary host or on auxiliary hosts phylogenetically closer to the principal host than on auxiliary hosts phylogenetically distant from a principal host. Variation in flea feeding performance may result from the interplay of several factors including co-occurrence between hosts and susceptibility of a host to flea attacks, the species-specific level of immunocompetence of a host and the level of host specificity of a flea. This study describes the first investigation into the metabolic expenditure of parasitism and its relationship to phylogenetic relationships amongst hosts.


英文关键词fleas digestion energy rodents
类型Article
语种英语
国家Israel ; USA
收录类别SCI-E
WOS记录号WOS:000302117300006
WOS关键词XENOPSYLLA-RAMESIS ; MERIONES-CRASSUS ; DESERT RODENTS ; METABOLIC-RATE ; PARASITE ; SIPHONAPTERA ; INFESTATION ; PERFORMANCE ; EVOLUTION ; ISRAEL
WOS类目Biology
WOS研究方向Life Sciences & Biomedicine - Other Topics
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/2XILL650/173502
作者单位1.Ben Gurion Univ Negev, Mitrani Dept Desert Ecol, Swiss Inst Dryland Environm & Energy Res, Jacob Blaustein Inst Desert Res, IL-84990 Midreshet Ben Gurion, Israel;
2.Ben Gurion Univ Negev, Wyler Dept Dryland Agr, French Associates Inst Agr & Biotechnol Drylands, Jacob Blaustein Inst Desert Res, IL-84990 Midreshet Ben Gurion, Israel;
3.Truman State Univ, Dept Biol, Kirksville, MO 63501 USA
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Khokhlova, Irina S.,Fielden, Laura J.,Degen, A. Allan,et al. Digesting blood of an auxiliary host in fleas: effect of phylogenetic distance from a principal host[J]. Ben-Gurion University of the Negev,2012,215(8):1259-1265.
APA Khokhlova, Irina S.,Fielden, Laura J.,Degen, A. Allan,&Krasnov, Boris R..(2012).Digesting blood of an auxiliary host in fleas: effect of phylogenetic distance from a principal host.JOURNAL OF EXPERIMENTAL BIOLOGY,215(8),1259-1265.
MLA Khokhlova, Irina S.,et al."Digesting blood of an auxiliary host in fleas: effect of phylogenetic distance from a principal host".JOURNAL OF EXPERIMENTAL BIOLOGY 215.8(2012):1259-1265.
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