Arid
DOI10.1242/jeb.122812
Flea fitness is reduced by high fractional concentrations of CO2 that simulate levels found in their hosts’ burrows
Downs, Cynthia J.1; Pinshow, Berry1; Khokhlova, Irina S.2; Krasnov, Boris R.1
通讯作者Downs, Cynthia J.
来源期刊JOURNAL OF EXPERIMENTAL BIOLOGY
ISSN0022-0949
EISSN1477-9145
出版年2015
卷号218期号:22页码:3596-3603
英文摘要

Nidicolous ectoparasites such as fleas and gamasid mites that feed on small and medium-sized mammals spend much of their time in their hosts’ burrows, which provide an environment for living, and often feeding, to their pre-imaginal and/or adult stages. Thus, these ectoparasites should be adapted to environmental conditions in burrows, including high fractional concentrations of CO2 (F-CO2). We examined how a high F-CO2 (0.04) affected survival and reproductive success of a hematophagous ectoparasite of burrowing rodents using fleas Xenopsylla ramesis and Sundevall’s jirds Meriones crassus. In the first experiment, fleas fed on hosts housed in high-CO2 (F-CO2 = 0.04) or atmospheric-CO2 (F-CO2 approximate to 0.0004) air, and were allowed to breed. In a second experiment, fleas were maintained in high CO2 or CO2-free air with no hosts to determine how CO2 levels affect survival and activity levels. We found that at high F-CO2 fleas laid fewer eggs, reducing reproductive success. In addition, at high F-CO2, activity levels and survival of fleas were reduced. Our results indicate that fleas do not perform well in the F-CO2 used in this experiment. Previous research indicated that the type and intensity of the effects of CO2 concentration on the fitness of an insect depend on the F-CO2 used, so we advise caution when generalizing inferences drawn to insects exposed to other F-CO2. If, however, F-CO2 found in natural mammal burrows brings about reduced fitness in fleas in general, then burrowing hosts may benefit from reduced parasite infestation if burrow air F-CO2 is high.


英文关键词Development Carbon dioxide Ectoparasite Life history Reproductive success Survival
类型Article
语种英语
国家Israel
收录类别SCI-E
WOS记录号WOS:000365342100013
WOS关键词CARBON-DIOXIDE ; WATER-BALANCE ; ENVIRONMENTAL-CONDITIONS ; SPECIES SIPHONAPTERA ; TRIBOLIUM-CASTANEUM ; XENOPSYLLA-RAMESIS ; RESPIRATORY GASES ; AIR-TEMPERATURE ; DESERT FLEAS ; KANGAROO RAT
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/2XILL650/188607
作者单位1.Ben Gurion Univ Negev, Jacob Blaustein Inst Desert Res, Mitrani Dept Desert Ecol, IL-84990 Midreshet Ben Gurion, Israel;
2.Ben Gurion Univ Negev, Jacob Blaustein Inst Desert Res, Wyler Dept Dryland Agr, French Associates Inst Agr & Biotechnol Drylands, IL-84990 Midreshet Ben Gurion, Israel
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GB/T 7714
Downs, Cynthia J.,Pinshow, Berry,Khokhlova, Irina S.,等. Flea fitness is reduced by high fractional concentrations of CO2 that simulate levels found in their hosts’ burrows[J]. Ben-Gurion University of the Negev,2015,218(22):3596-3603.
APA Downs, Cynthia J.,Pinshow, Berry,Khokhlova, Irina S.,&Krasnov, Boris R..(2015).Flea fitness is reduced by high fractional concentrations of CO2 that simulate levels found in their hosts’ burrows.JOURNAL OF EXPERIMENTAL BIOLOGY,218(22),3596-3603.
MLA Downs, Cynthia J.,et al."Flea fitness is reduced by high fractional concentrations of CO2 that simulate levels found in their hosts’ burrows".JOURNAL OF EXPERIMENTAL BIOLOGY 218.22(2015):3596-3603.
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