Interactions with heterospecific males do not affect how female Mesocricetus hamsters respond to conspecific males.
Interactions with heterospecific males do not affect how female Mesocricetus hamsters respond to conspecific males.
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DOI：
10.1016/j.anbehav.2012.10.019
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发表时间：
2013-01-01
期刊：
影响因子：
2.5
通讯作者：
Johnston, Robert E.
中科院分区：
文献类型：
--
作者：
delBarco-Trillo, Javier;Johnston, Robert E.
生殖干扰包括任何降低所涉及的一个或两个物种的适应性的种间相互作用。生殖干扰有多种类型，但它们通常涉及与异种生物相互作用或交配的直接成本。与异种个体互动的间接成本是与同种个体成功互动的随之减少。我们测试了这样一个假设：对异种个体的攻击性会减少以后遭遇中对同种个体的性反应。我们使用了两种中仓鼠（叙利亚仓鼠和土耳其仓鼠），它们的种间相互作用先前已被确定。我们将雌性叙利亚仓鼠暴露或同时暴露并与同种或异种雄性叙利亚仓鼠配对。五分钟后，我们将所有雌性与同种雄性配对，并测量脊柱前凸的潜伏期、脊柱前凸的持续时间以及攻击行为的发生率。我们发现（1）与异种雄性的相互作用并不影响雌性在以后的遭遇中对同种雄性的反应；（2）之前将雌性受试者与同种或异种雄性配对可以促进雌性在随后与同种雄性的互动中更快的性反应。因此，与我们最初的假设相反，叙利亚仓鼠雌性与异种雄性的攻击性互动对随后与同种雄性的互动产生了积极影响。
Reproductive interference includes any interspecific interaction that reduces the fitness of one or both species involved. There are several types of reproductive interference, but they normally involve the direct cost of interacting or mating with heterospecifics. An indirect cost of interacting with heterospecific individuals is a consequent reduction in successful interactions with conspecifics. We tested the hypothesis that being aggressive towards a heterospecific individual will diminish sexual responses towards conspecifics in later encounters. We used two species of Mesocricetus hamsters (Syrian and Turkish hamsters), whose interspecific interactions have previously been determined. We exposed or both exposed and paired Syrian hamster females with a conspecific or a heterospecific male. Five minutes later, we paired all females with a conspecific male and measured the latency to lordosis, the duration of lordosis and any incidence of aggression. We found that (1) interactions with heterospecific males did not affect how females responded to conspecific males in later encounters and (2) previous pairing of female subjects with either conspecific or heterospecific males promoted a faster sexual response by females in subsequent interactions with conspecific males. Thus, aggressive interactions of Syrian hamster females with heterospecific males, contrary to our initial hypothesis, had a positive effect on subsequent interactions with conspecific males.
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影响因子：
2.4
作者：
Dukas, R
通讯作者：
Dukas, R
影响因子：
2
作者：
delBarco-Trillo, J.;Gulewicz, K.;Johnston, R. E.
通讯作者：
Johnston, R. E.
影响因子：
1.8
作者：
delBarco-Trillo, Javier;Johnston, Robert E.
通讯作者：
Johnston, Robert E.
影响因子：
2.5
作者：
Kujtan, Lara;Dukas, Reuven
通讯作者：
Dukas, Reuven
影响因子：
2.5
作者：
Magurran, AE;Ramnarine, IW
通讯作者：
Ramnarine, IW