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Mismatch Between Birth Date and Vegetation Phenology Slows the Demography of Roe Deer

机译：出生日期和植被物候之间的不匹配减慢了De的人口统计

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Marked impacts of climate change on biodiversity have frequently been demonstrated, including temperature-related shifts in phenology and life-history traits. One potential major impact of climate change is the modification of synchronization between the phenology of different trophic levels. High phenotypic plasticity in laying date has allowed many bird species to track the increasingly early springs resulting from recent environmental change, but although changes in the timing of reproduction have been well studied in birds, these questions have only recently been addressed in mammals. To track peak resource availability, large herbivores like roe deer, with a widespread distribution across Europe, should also modify their life-history schedule in response to changes in vegetation phenology over time. In this study, we analysed the influence of climate change on the timing of roe deer births and the consequences for population demography and individual fitness. Our study provides a rare quantification of the demographic costs associated with the failure of a species to modify its phenology in response to a changing world. Given these fitness costs, the lack of response of roe deer birth dates to match the increasingly earlier onset of spring is in stark contrast with the marked phenotypic responses to climate change reported in many other mammals. We suggest that the lack of phenotypic plasticity in birth timing in roe deer is linked to its inability to track environmental cues of variation in resource availability for the timing of parturition.
机译：气候变化对生物多样性的显着影响经常得到证明，包括与温度有关的物候和生活史特征变化。气候变化的潜在主要影响之一是改变了不同营养级别的物候之间的同步性。产蛋期的高表型可塑性使许多鸟类能够追踪由于最近的环境变化而导致的越来越早的春天，但是尽管人们已经很好地研究了繁殖时间的变化，但是这些问题直到最近才在哺乳动物中得到解决。为了追踪资源的峰值，大型食草动物如ro在欧洲分布广泛，还应根据植被物候随时间的变化来修改其生活史时间表。在这项研究中，我们分析了气候变化对ro出生时间的影响以及人口人口统计学和个体适应性的后果。我们的研究提供了一种人口稀有的量化统计信息，该统计信息与物种无法响应不断变化的世界而改变其物候特性有关。鉴于这些健身成本，缺乏对birth出生日期的反应以适应春季越来越早的发病，这与许多其他哺乳动物中对气候变化的明显表型反应形成鲜明对比。我们建议ro的出生时机缺乏表型可塑性与它无法追踪分娩时机的资源可用性变化的环境线索有关。

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