Life history and the evolutionary loss of parental care

Life history and the evolutionary loss of parental care
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生活史和父母照顾的进化丧失

DOI:
10.1098/rspb.2022.0658
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发表时间:
2022
期刊:
Proceedings of the Royal Society B: Biological Sciences
影响因子:
--
通讯作者:
Klug, Hope
Klug, Hope
中科院分区:
--
文献类型:
--
作者:
Udu, Isimeme N.;Bonsall, Michael B.;Klug, Hope

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在进化过程中,父母的照顾经历了多次获得和失去。虽然许多研究都集中在护理的起源,很少有人探讨护理的进化损失。理解父母照料的丧失是重要的,因为有利于父母照料丧失的条件不一定与有利于照料演变的条件相反。进化滞后(进化依赖于系统历史的情况)可能会造成一种情况,即一旦进化,失去护理就相对具有挑战性。在这里,使用数学方法,我们探讨了与基本生活史条件有关的父母照顾的进化损失。我们的研究结果表明,当卵子和成虫死亡率低,卵子成熟快,提供的护理水平高时,父母的照顾最有可能失去。我们还预测了卵子成熟率方面的进化滞后:随着卵子成熟率的降低,失去关爱的代价越来越高,这表明一旦关爱存在,如果卵子发育缓慢,失去关爱将特别具有挑战性。
Parental care has been gained and lost evolutionarily multiple times. While many studies have focused on the origin of care, few have explored the evolutionary loss of care. Understanding the loss of parental care is important as the conditions that favour its loss will not necessarily be the opposite of those that favour the evolution of care. Evolutionary hysteresis (the case in which evolution depends on the history of a system) could create a situation in which it is relatively challenging to lose care once it has evolved. Here, using a mathematical approach, we explore the evolutionary loss of parental care in relation to basic life-history conditions. Our results suggest that parental care is most likely to be lost when egg and adult death rates are low, eggs mature quickly, and the level of care provided is high. We also predict evolutionary hysteresis with respect to egg maturation rate: as egg maturation rate decreases, it becomes increasingly more costly to lose care than to gain it. This suggests that once care is present, it will be particularly challenging for it to be lost if eggs develop slowly.
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