Partner intrinsic characteristics influence foraging trip duration, but not coordination of care in wandering albatrosses Diomedea exulans.
Partner intrinsic characteristics influence foraging trip duration, but not coordination of care in wandering albatrosses Diomedea exulans.
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DOI：
10.1002/ece3.9621
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发表时间：
2022-12
影响因子：
2.6
通讯作者：
Patrick, Samantha C.
中科院分区：
文献类型：
--
作者：
McCully, Fionnuala R.;Weimerskirch, Henri;Cornell, Stephen J.;Hatchwell, Ben J.;Cairo, Milena;Patrick, Samantha C.
长寿的一夫一妻制物种通过在双亲抚育期间均衡努力而获得长期的健康益处。例如，许多海鸟物种通过配对觅食旅行的持续时间来协调照顾。年龄影响某些海鸟物种的协调性；然而，包括人格在内的其他内在特征对协调强度的潜在种内变异的影响尚不清楚。利用71对游弋信天翁的盐水浸泡记录仪，研究了游弋信天翁的内在特征对游弋时间和协调强度的影响。这些是根据伴侣的年龄、胆量和伴侣之前的旅行时间来建模的。在种群水平上，雏鸟在孵化和孵雏过程中表现出一定程度的亲代照顾协调。然而，配对间的协调性变化不大，在任何一个繁殖阶段，协调性强度都不受鸟的胆度和年龄的影响。令人惊讶的是，在孵化期间，觅食旅程的持续时间主要是由伴侣特征决定的，因为与年龄较大和胆子较大的伴侣配对的鸟类的旅行时间较短。在雏鸟孵化期间，较短的觅食行程与焦点鸟及其伴侣的胆子更大有关，但年龄没有影响。这些结果表明，个体对其伴侣提供照顾的能力或意愿的评估可能是旅行时间的主要驱动因素，因此强调了在研究亲代照顾策略时考虑配偶行为的重要性。本研究对流浪信天翁（Diomedea exulans）的个体和伴侣的内在性状是否影响亲代抚育协调进行了研究，发现在孵化和雏鸟育雏过程中，亲代抚育协调同样强烈，但在整个繁殖过程中，内在性状对亲代抚育协调没有影响。令人惊讶的是，孵化旅程受到伴侣特征的影响，因为有年长和大胆伴侣的鸟类飞行时间较短，而在孵化过程中，短途旅行与重点鸟类和伴侣的胆子增加有关。这证明了在研究行程持续时间的驱动因素时对配对行为建模的重要性。
Long‐lived monogamous species gain long‐term fitness benefits by equalizing effort during biparental care. For example, many seabird species coordinate care by matching foraging trip durations within pairs. Age affects coordination in some seabird species; however, the impact of other intrinsic traits, including personality, on potential intraspecific variation in coordination strength is less well understood. The impacts of pair members' intrinsic traits on trip duration and coordination strength were investigated using data from saltwater immersion loggers deployed on 71 pairs of wandering albatrosses Diomedea exulans. These were modeled against pair members' age, boldness, and their partner's previous trip duration. At the population level, the birds exhibited some coordination of parental care that was of equal strength during incubation and chick‐brooding. However, there was low variation in coordination between pairs and coordination strength was unaffected by the birds' boldness or age in either breeding stage. Surprisingly, during incubation, foraging trip duration was mainly driven by partner traits, as birds which were paired to older and bolder partners took shorter trips. During chick‐brooding, shorter foraging trips were associated with greater boldness in focal birds and their partners, but age had no effect. These results suggest that an individual's assessment of their partner's capacity or willingness to provide care may be a major driver of trip duration, thereby highlighting the importance of accounting for pair behavior when studying parental care strategies. This investigation into whether individual and partner intrinsic traits influenced parental care coordination in wandering albatrosses (Diomedea exulans) found that coordination was equally strong in both incubation and chick‐brooding, but was unaffected by intrinsic traits throughout breeding. Surprisingly, incubation trips were influenced by partners' traits, in that birds with older and bolder partners took shorter trips, while in brooding, short trips were associated with increased boldness of focal birds and partners. This demonstrates the importance of modeling pair behavior when investigating the drivers of trip duration.
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