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首页> 外文期刊>Hormones and behavior >The role of olfaction during mating in the southern temperate spiny lobster Jasus edwardsii.
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The role of olfaction during mating in the southern temperate spiny lobster Jasus edwardsii.

机译：嗅觉在南部温带刺龙虾Jasus edwardsii交配过程中的作用。

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Chemosensory communication may be crucial during mate choice and mating in the southern temperate spiny lobster Jasus edwardsii to ensure that females mate with large males capable of supplying adequate numbers of sperm during the short mating window. To clarify the role of pheromones during this process, three laboratory experiments were carried out. In an experiment where the output of urine, which contains sex-specific pheromones, from large and small catheterized males was switched, large post-molt females did not make a clear choice of mate. This indicates that while females distinguish among females, males, and juveniles using their chemosensory sense, they distinguish among males using visual and tactile senses in combination with olfaction. Further, two antennule-ablation experiments were carried out to determine if detection of pheromones by the antennules of females or males was critical for mate selection, courting, or mating. In both cases, we observed a (nonsignificant) trend of slightly delayed mating of treatment females. We found that disruption of female olfaction causes less impact on courtship or mating than ablation of male antennules which increased the variance in the length of the period between molting and mating and resulted in a systematic reduction in clutch size. This lesser impact of female ablation may be because females can still respond to their own internal cues about egg ripeness whereas males cannot. In J. edwardsii, unlike the American clawed lobster, Homarus americanus, one fully functional partner of either sex appears sufficient to initiate mating.
机译：在南部温带多刺龙虾Jasus edwardsii的配偶选择和交配过程中，化学感官交流可能至关重要，以确保雌性与大型雄性交配，雄性能够在短交配时间内提供足够数量的精子。为了阐明信息素在此过程中的作用，进行了三个实验室实验。在一个实验中，从大大小小的经导管插入的雄性中转换出含有性别特异性信息素的尿液，而大的蜕皮后雌性并没有做出明确的选择。这表明，尽管女性使用化学感官来区分女性，男性和青少年，但他们使用视觉和触觉感官并结合嗅觉来区分男性。此外，还进行了两次消融实验，以确定雌性或雄性的尾核对信息素的检测对于选择配偶，求爱或交配是否至关重要。在这两种情况下，我们观察到治疗女性交配略有延迟的趋势（不明显）。我们发现，女性嗅觉的破坏对消融或交配的影响要小于对雄性环的消融，这增加了蜕皮和交配之间的时间长度差异，并导致离合器尺寸的系统性减小。女性消融的影响较小，可能是因为女性仍然可以回应自己对卵成熟的内在暗示，而男性则不能。与美国爪状龙虾美洲大螯虾不同，在爱德华猪笼草中，任何性别的一个功能齐全的伴侣似乎足以开始交配。

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