一种高度季节性哺乳动物的气候变化和风险评估。

IF 2 2区 生物学 Q2 ZOOLOGY
Current Zoology Pub Date : 2024-09-30 eCollection Date: 2025-08-01 DOI:10.1093/cz/zoae058
McKenna Sanchez, Julien G A Martin, Daniel T Blumstein
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引用次数: 0

摘要

众所周知,气候变化及其对季节性的影响会改变动物的多种行为,包括与觅食、物候和迁徙有关的行为。尽管许多研究关注物候变化对生理或健身增强行为的影响,但较少研究天气和物候变化在风险评估中的关系。逃离捕食者是一项经济决策,会带来成本和收益。随着环境条件的变化,动物可能会面临额外的压力,这些压力会影响它们逃跑的决定,并影响它们有效评估风险的能力。飞行起始距离(FID)——动物远离威胁的距离——经常被用来研究风险评估。FID的变化受内外生物和物理因素以及人为活动的影响。我们询问天气和物候的变化是否与黄腹土拨鼠(Marmota flavventer)种群的冒险行为有关。随着气温的升高,土拨鼠可以忍受更近的接触,这表明它们要么觉得风险更小,要么对威胁的反应受到了热损害。温度的影响相对较小,很大程度上取决于在完整的数据集中有更大的范围,使我们能够检测到它。我们没有发现积雪消失日期和7月降水对旱獭FID的影响。随着全球气温持续上升,降雨变化更大,干旱变得更加普遍,了解动物如何评估风险的气候相关变化应用于为种群生存能力模型提供信息。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Climatic variation and risk assessment in a highly seasonal mammal.

Climatic variation and risk assessment in a highly seasonal mammal.

Climate change and its resulting effects on seasonality are known to alter a variety of animal behaviors including those related to foraging, phenology, and migration. Although many studies focus on the impacts of phenological changes on physiology or fitness enhancing behaviors, fewer have investigated the relationship between variation in weather and phenology on risk assessment. Fleeing from predators is an economic decision that incurs costs and benefits. As environmental conditions change, animals may face additional stressors that affect their decision to flee and influence their ability to effectively assess risk. Flight initiation distance (FID)-the distance at which animals move away from threats-is often used to study risk assessment. FID varies due to both internal and external biotic and physical factors as well as anthropogenic activities. We asked whether variation in weather and phenology is associated with risk-taking in a population of yellow-bellied marmots (Marmota flaviventer). As the air temperature increased marmots tolerated closer approaches, suggesting that they either perceived less risk or that their response to a threat was thermally compromised. The effect of temperature was relatively small and was largely dependent upon having a larger range in the full data set that permitted us to detect it. We found no effects of either the date that snow disappeared or July precipitation on marmot FID. As global temperatures continue to rise, rainfall varies more and drought becomes more common, understanding climate-related changes in how animals assess risk should be used to inform population viability models.

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来源期刊
Current Zoology
Current Zoology Agricultural and Biological Sciences-Animal Science and Zoology
CiteScore
3.20
自引率
9.10%
发文量
111
审稿时长
6 weeks
期刊介绍: About the Journal Current Zoology (formerly Acta Zoologica Sinica, founded in 1935) is an open access, bimonthly, peer-reviewed international journal of zoology. It publishes review articles and research papers in the fields of ecology, evolution and behaviour. Current Zoology is sponsored by Institute of Zoology, Chinese Academy of Sciences, along with the China Zoological Society.
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