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首页> 外文期刊>Zoological Science >Mating Patterns of Minshan's Toad (Bufo minshanicus) from Three Populations along an Altitudinal Gradient
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Mating Patterns of Minshan's Toad (Bufo minshanicus) from Three Populations along an Altitudinal Gradient

机译：沿梯度的三个种群的Min山蟾蜍（Bufo minshanicus）交配模式

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The large-male mating advantage and size-assortative mating are two different size-based patterns, which deviate from random mating in toads. These two pairing patterns may arise due to female choice, male-male competition, male choice, or a combination of these. This study investigated the mating system of Minshan's toad (Bufo minshanicus) from three populations along an altitudinal gradient during two breeding reasons in the northeastern Tibetan plateau. Our study shows that males found in amplexus with females were larger on average than non-amplectant males in two sites with higher operational sex ratios. Similarly, in those sites, males and females found in amplexus maintained an optimal size ratio. These data suggest that male-male competition leads to size-assortative mating in the lack of mate choice (female and male mate choice) by Minshan's toad, as larger males performed higher frequencies for taking-over other low quality ones with amplectant females.
机译：雄性大的交配优势和大小不同的交配是两种不同的基于大小的模式，这与蟾蜍中的随机交配不同。这两种配对模式可能是由于女性选择，男性竞争，男性选择或它们的组合而产生的。本研究在藏高原东北部的两个繁殖原因下，按海拔梯度从三个种群调查了shan山蟾蜍（Bufo minshanicus）的交配系统。我们的研究表明，在两个具有较高工作性别比的地点中，与儿童相比，处于困惑状态的男性平均要比不擅长男性的男性要大。类似地，在那些部位，在眼plex中发现的雄性和雌性保持最佳的大小比。这些数据表明，Min族蟾蜍缺乏雌雄选择时，雄雄竞争导致大小选择交配，因为较大的雄性以较高的频率接替其他两性雌性低质量的雄性。

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