Timing of seasonal events is correlated with social network position in a wild mammal

IF 1.9 2区 生物学 Q3 BEHAVIORAL SCIENCES
Conner S. Philson, Carla Bruebach, Taylor Bastian, Billy Barr, Daniel T. Blumstein
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引用次数: 0

Abstract

Across animal systems, abiotic environmental features, including timing of seasonal events and weather patterns, affect fitness. An individual’s degree of social integration also has fitness consequences, but we lack an understanding of how abiotic features relate to patterns of individual sociality. A deeper understanding of this relationship could be developed from studying systems where these two links with fitness have already been identified. We explored the relationship between individual social behavior and seasonal timing, seasonal length, and weather patterns. We used social network analysis on a sixteen-year dataset of a wild population of hibernating yellow-bellied marmots (Marmota flaviventer). We fit a series of generalized linear mixed models and found that longer growing seasons before winter hibernation and longer winters were associated with increased individual sociality in the following spring. However, later snowmelt was associated with decreased sociality that spring. We found no relationship between individual sociality and various measures of precipitation and temperature. This suggests that seasonal timing and length may be a more important driver of sociality than weather patterns in this system, both as a lag and contemporary effect. Seasonal timing and length may mediate the opportunity or intensity of social interactions. The entwined relationships between the seasonal schedule and weather, and the seemingly contradictory role of winter length and snowmelt, suggests the timing of seasons and its relationship with sociality is complex and further exploration of environment-sociality relationships is required across taxa.

Significance statement

While the adaptive benefits of social behavior are well studied, less is known about how features of the abiotic environment drive variation in individual social behavior. Given increasing stochasticity in the timing of seasonal events and weather patterns, mapping the environment-sociality relationship will provide important insights to the drivers of sociality in the wild. This is particularly salient for species most vulnerable to climate and environmental change, such as seasonal hibernators, like yellow-bellied marmots (Marmota flaviventer). We found that features of seasonal duration were positively associated with increased sociality, whereas the timing of seasonal onset was negatively associated. This work provides empirical evidence towards an important gap in the behavioral ecology literature.

季节性事件的时间安排与野生哺乳动物的社会网络地位有关
摘要在各种动物系统中,非生物环境特征,包括季节性事件的时间和天气模式,都会影响适应性。个体的社会融合程度也会对适应性产生影响,但我们对非生物特征与个体社会性模式之间的关系缺乏了解。通过研究已经发现这两种关系的系统,我们可以对这种关系有更深入的了解。我们探索了个体社会行为与季节时间、季节长度和天气模式之间的关系。我们对野生黄腹旱獭(Marmota flaviventer)冬眠种群十六年的数据集进行了社会网络分析。我们拟合了一系列广义线性混合模型,发现冬眠前生长季节较长和冬季较长与次年春季个体社会性增加有关。然而,融雪时间较晚与次年春季的社会性降低有关。我们没有发现个体社会性与各种降水和温度指标之间的关系。这表明,在这一系统中,季节的时间和长度可能是比天气模式更重要的社会性驱动因素,既有滞后效应,也有当代效应。季节的时间和长度可能会影响社会互动的机会或强度。季节安排与天气之间的纠缠关系,以及冬季长度与融雪之间看似矛盾的作用,表明季节的时间及其与社会性的关系是复杂的,需要在不同类群中进一步探索环境与社会性之间的关系。鉴于季节性事件和天气模式的时间随机性越来越大,绘制环境与社会性的关系图将为了解野外社会性的驱动因素提供重要启示。这对于最容易受到气候和环境变化影响的物种来说尤为重要,例如黄腹旱獭(Marmota flaviventer)等季节性冬眠动物。我们发现,季节持续时间的特征与社会性的增加呈正相关,而季节开始的时间则呈负相关。这项研究为行为生态学文献中的一个重要空白提供了实证证据。
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
CiteScore
3.90
自引率
8.70%
发文量
146
审稿时长
3 months
期刊介绍: The journal publishes reviews, original contributions and commentaries dealing with quantitative empirical and theoretical studies in the analysis of animal behavior at the level of the individual, group, population, community, and species.
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