Learning magnifies individual variation in heterospecific mating propensity
Learning magnifies individual variation in heterospecific mating propensity
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DOI：
10.1016/j.anbehav.2009.05.026
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发表时间：
2009-08-01
期刊：
影响因子：
2.5
通讯作者：
Dukas, Reuven
中科院分区：
文献类型：
--
作者：
Kujtan, Lara;Dukas, Reuven
最近的研究表明，学习的背景下，果蝇的性行为表明，学习可能会增加水平的部分分歧的人口之间的选择性交配。我们提出了一个图形模型研究的作用，学习和一系列的实验评估的假设和预测的模型。我们发现，先前成功地与同胞物种的雌性果蝇交配的雄性果蝇，D。pseudobscura，没有更高的异种交配成功率比男性，无论是处女或以前与同种女性交配。另一方面，女性D。pseudobscura显然严格的交配标准，拒绝异种男性，也更有可能拒绝同种男性比女性没有经验的男性。最后，D.先前被异性雌性拒绝的Persimilis雄性求偶次数显著减少，异性交配成功率为先前被异性雌性接受的雄性的一半。这些结果，结合以往的证据表明，拒绝异性雌性的男性学会避免求爱这样的女性，表明学习可以增加部分交配前隔离人群之间的表型分歧。(C)2009年，动物行为研究协会。由爱思唯尔有限公司出版。保留所有权利。
Recent research indicating learning in the context of sexual behaviour in fruit flies suggests that learning could increase levels of assortative mating between partially diverged populations. We present a graphic model examining the role of learning and a series of experiments evaluating assumptions and predictions of the model. We found that male Drosophila persimilis that previously succeeded in mating with females of the sibling species, D. pseudoobscura, did not have a higher heterospecific mating success than males that were either virgin or previously mated with conspecific females. On the other hand, female D. pseudoobscura with apparently strict mating criteria, which rejected heterospecific males, were also more likely to reject conspecific males than were females inexperienced with males. Finally, D. persimilis males previously rejected by heterospecific females courted significantly less and had half as much heterospecific mating success as males previously accepted by heterospecific females. These results, combined with previous evidence demonstrating that males rejected by heterospecific females learn to avoid courting such females, indicate that learning can increase phenotypic divergence between populations with partial pre-mating isolation. (C) 2009 The Association for the Study of Animal Behaviour. Published by Elsevier Ltd. All rights reserved.