Avoidance of interspecific mating in female Syrian hamsters is stronger toward familiar than toward unfamiliar heterospecific males
Avoidance of interspecific mating in female Syrian hamsters is stronger toward familiar than toward unfamiliar heterospecific males
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DOI：
10.3758/s13420-011-0024-8
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发表时间：
2011-09-01
影响因子：
1.8
通讯作者：
Johnston, Robert E.
中科院分区：
文献类型：
--
作者：
delBarco-Trillo, Javier;Johnston, Robert E.
成年雌性叙利亚仓鼠（Mesocricetus auratus）学会歧视熟悉的异种雄性（土耳其仓鼠，M.brandti）。我们调查了雌性在只接触过一名异种雄性后是否学会避开任何异种雄性。我们预测，在接触一位异种雄性后，雌性不仅会避免与熟悉的雄性交配，还会避免与任何不熟悉的异种雄性交配。我们将雌性隔着丝网屏障与异种雄性接触 8 天，然后将雌性与 (a) 相同的异种雄性或 (b) 不熟悉的异种雄性配对。与熟悉的异种雄性相比，雌性对不熟悉的异种雄性表现出的脊柱前凸速度更快、持续时间更长。然而，雌性对熟悉和不熟悉的异种雄性也同样具有攻击性。也许暴露于几个异种雄性的刺激（在野外很可能出现这种情况）会导致雌性对熟悉和不熟悉的异种雄性表现出相似的行为。
Adult Syrian hamster females (Mesocricetus auratus) learn to discriminate against familiar heterospecific males (Turkish hamster, M. brandti). We investigated whether females learn to avoid any heterospecific male after exposure to just one heterospecific male. We predicted that, after being exposed to one heterospecific male, a female would avoid mating not only with that familiar male but also with any unfamiliar heterospecific male. We exposed females to a heterospecific male across a wire-mesh barrier for 8 days and then paired the female with (a) that same heterospecific male or (b) an unfamiliar heterospecific male. Females exhibited lordosis faster and for a longer duration toward the unfamiliar than toward the familiar heterospecific male. However, females were similarly aggressive toward familiar and unfamiliar heterospecific males. Perhaps exposure to stimuli from several heterospecific males (a likely scenario in the wild) would result in females behaving similarly toward familiar and unfamiliar heterospecific males.