Ecological drivers of variation in the extent of the post-fledging dependence period in the largest group of diurnal raptors

IF 1.8 3区 生物学 Q1 ORNITHOLOGY
Ibis Pub Date : 2025-01-20 DOI:10.1111/ibi.13392
Diego Gallego-García, José Hernán Sarasola
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引用次数: 0

Abstract

The post-fledging dependence period (PFDP) is a fundamental stage in the life cycle of altricial birds that influences their long-term survival and fitness. However, research on the duration of this period in raptors, and on the factors affecting it, is scarce. We performed the first literature review on the length of the PFDP in Accipitridae, the largest family among diurnal raptors, and a meta-analysis examining the effects of breeding latitude and hemisphere, body weight and migratory status, controlling for species phylogeny. Hypotheses were tested at the levels of both species and populations. The length of the PFDP is known for less than half of Accipitridae species, with no data for two-thirds of the threatened and near-threatened species. Larger species and individuals breeding at lower latitudes showed a longer PFDP, as did non-migrants and southern-hemisphere breeders. The effect of latitude was more marked in larger species, in resident populations and in southern-hemisphere breeders. This extended PFDP in larger and tropical raptors may promote juvenile survival. Migration timing and the effects of continentality in the northern hemisphere constrain the PFDP. These findings highlight the importance of encouraging the study of this key, but poorly known, life-cycle stage of raptors.

最大的昼行性猛禽群体羽化后依赖期范围变化的生态驱动因素
羽化后依赖期(PFDP)是晚育鸟类生命周期的一个重要阶段,影响着晚育鸟类的长期生存和健康。然而,关于猛禽这个时期的持续时间以及影响它的因素的研究却很少。我们首次对昼夜活动的猛禽中最大的科——刺鼻科的PFDP长度进行了文献综述,并对其进行了meta分析,考察了繁殖纬度和半球、体重和迁徙状态对物种系统发育的影响。在物种和种群的水平上对假设进行了检验。已知的PFDP长度不到一半的刺蚊科物种,三分之二的受威胁和近危物种没有数据。在低纬度地区繁殖的大型物种和个体表现出较长的PFDP,非迁徙者和南半球繁殖者也是如此。纬度的影响在较大的物种、常住种群和南半球的繁殖种群中更为明显。这种扩大的PFDP在大型和热带猛禽中可能会促进幼龙的生存。北半球的迁移时间和大陆性的影响限制了PFDP。这些发现强调了鼓励研究迅猛龙这一关键但鲜为人知的生命周期阶段的重要性。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
Ibis
Ibis 生物-鸟类学
CiteScore
4.60
自引率
9.50%
发文量
118
审稿时长
6-12 weeks
期刊介绍: IBIS publishes original papers, reviews, short communications and forum articles reflecting the forefront of international research activity in ornithological science, with special emphasis on the behaviour, ecology, evolution and conservation of birds. IBIS aims to publish as rapidly as is consistent with the requirements of peer-review and normal publishing constraints.
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