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摘要翻译：
父母-后代冲突理论预测了母亲和她的后代之间的断奶冲突的出现，这是由于亲属关系福利的倾斜造成的。断奶冲突的经验观察还没有在犬中进行。在一项对散养犬的实地研究中，我们观察到随着幼犬年龄的增长，哺乳时间缩短，母亲引发的哺乳时间减少，母亲引发的哺乳终止率增加。我们确定幼仔年龄的第7-13周是母仔和幼仔之间的冲突区，超过这段时间就停止哺乳，在这段时间之前拒绝哺乳很少。我们还首次报告了利用多个哺乳雌性的机会偷窃乳汁的小狗，这是由于狗的混杂交配系统造成的。这种行为，虽然显然对母亲不利，但可能是适应面对高死亡率和资源竞争的狗。
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英文标题：
《Selfish Pups: Weaning Conflict and Milk Theft in Free-Ranging Dogs》
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作者：
Manabi Paul and Anindita Bhadra
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最新提交年份：
2016
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分类信息：
一级分类：Quantitative Biology 数量生物学
二级分类：Other Quantitative Biology 其他定量生物学
分类描述：Work in quantitative biology that does not fit into the other q-bio classifications
不适合其他q-bio分类的定量生物学工作
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英文摘要：
Parent-offspring conflict theory predicts the emergence of weaning conflict between a mother and her offspring arising from skewed relatedness benefits. Empirical observations of weaning conflict has not been carried out in canids. In a field-based study on free-ranging dogs we observed that suckling bout durations reduce, proportion of mother-initiated suckling bouts reduce and mother-initiated suckling terminations increase, with pup age. We identified the 7th - 13th week period of pup age as the zone of conflict between the mother and her pups, beyond which suckling solicitations cease, and before which suckling refusals are few. We also report for the first time milk theft by pups who take advantage of the presence of multiple lactating females, due to the promiscuous mating system of the dogs. This behaviour, though apparently disadvantageous for the mothers, is perhaps adaptive for the dogs in the face of high mortality and competition for resources.
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PDF链接：
https://arxiv.org/pdf/1607.00561
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