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首页> 外文期刊>Southeastern naturalist >Rapid change in the defense of flightless young by a mourning dove parent
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Rapid change in the defense of flightless young by a mourning dove parent

机译：哀悼中的鸽子父母迅速改变了不会飞的年轻人的防御能力

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摘要

We report that an adult-sized Zenaida macroura (Mourning Dove), presumably a parent, rapidly decreased risk taken in defense of a juvenile as the likelihood of predation to the juvenile increased. We attribute this decrease in risk taken to (1) the parent's perception that the risk of predation had increased to the extent that a continuation of defensive behaviors would not prevent the death of the juvenile, and (2) its attempt to minimize its own risk of death. It may be that there is a threshold beyond which Mourning Dove parents will forgo the risk of additional defense of offspring in favor of making another reproductive attempt.
机译：我们报告说，成年大小的Zenaida macroura（哀鸽）（大概是父母）会随着被捕食的可能性的增加而迅速降低防御少年的风险。我们将此风险的降低归因于（1）父母认为掠夺的风险已经增加到一定程度，以至于持续的防御行为不会阻止少年的死亡，以及（2）试图将其自身的风险降至最低的尝试死亡也许有一个门槛，哀悼鸽子的父母将放弃为后代额外防御的风险，转而进行另一次生殖尝试。

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