Discrimination by female mice between the odours of parasitized and non-parasitized males
Discrimination by female mice between the odours of parasitized and non-parasitized males
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雌性小鼠区分寄生和非寄生雄性的气味
DOI：
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发表时间：
1995
期刊：
影响因子：
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通讯作者：
D. Colwell
中科院分区：
文献类型：
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作者：
M. Kavaliers;D. Colwell
检测和避免被寄生的雄性已被提议作为雌性择偶的一个组成部分。我们研究了雌性实验室小鼠（Mus musculus Domesticus）是否可以根据气味区分被寄生的和非寄生的雄性。雌性小鼠可以在尿液和其他有气味的分泌物之间进行选择，或者是亚临床感染自然存在的肠道单一宿主、原生动物寄生虫蠕形艾美耳球虫五天的雄性小鼠，或者是未感染的雄性小鼠。与被寄生的雄性小鼠相比，雌性小鼠对未被寄生的雄性小鼠的气味表现出明显的偏好。通过调查次数、每次调查所花费的时间以及在选择情况下气味的总调查时间来衡量。与被寄生的雄性小鼠相比，雌性小鼠还对非寄生雄性小鼠的气味表现出压倒性的初始或第一选择偏好。这些观察结果表明，雌性小鼠可以区分被寄生的雄性小鼠和未被寄生的雄性小鼠的气味，并根据气味来区分被寄生的雄性小鼠。我们认为，雌性小鼠通过气味线索检测和避免受感染的雄性小鼠可能有助于减少寄生虫传播，并可能作为雌性择偶或选择的一个组成部分。
The detection and avoidance of parasitized males has been proposed to be a component of female mate choice. We investigated whether or not female laboratory mice, Mus musculus domesticus, could discriminate between parasitized and non-parasitized males on the basis of odour. Female mice were given a choice between the urine and other odorous secretions of either a male mouse sub-clinically infected for five days with the naturally occurring, enteric, single host, protozoan parasite, Eimeria vermiformis, or an uninfected male. Females showed a marked preference for the odours of non-parasitized male mice over those of the parasitized males; as measured by number of investigations, time spent per investigation, and total investigation time of the odours in a choice situation. Female mice also displayed an overwhelming initial, or first choice, preference for the odours of the non-parasitized male mice over those of the parasitized males. These observations show that female mice can distinguish between the odours of parasitized and non-parasitized males, and discriminate against parasitized males on the basis of odour. We suggest that the detection and avoidance of infected males by female mice through odour cues may function to reduce parasite transmission and potentially serve as a component of female mate selection or choice.