Linking energy availability, movement and sociality in a wild primate (Papio ursinus).

IF 5.4 2区 生物学 Q1 BIOLOGY
Ines Fürtbauer, Chloe Shergold, Charlotte Christensen, Anna M Bracken, Michael Heistermann, Marina Papadopoulou, M Justin O'Riain, Andrew J King
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引用次数: 0

Abstract

Proximate mechanisms of 'social ageing', i.e. shifts in social activity and narrowing of social networks, are understudied. It is proposed that energetic deficiencies (which are often seen in older individuals) may restrict movement and, in turn, sociality, but empirical tests of these intermediary mechanisms are lacking. Here, we study wild chacma baboons (Papio ursinus), combining measures of faecal triiodothyronine (fT3), a non-invasive proxy for energy availability, high-resolution GPS data (movement and social proximity) and accelerometry (social grooming durations). Higher (individual mean-centred) fT3 was associated with increased residency time (i.e. remaining in the same area longer), which, in turn, was positively related to social opportunities (i.e. close physical proximity). Individuals with more frequent social opportunities received more grooming, whereas for grooming given, fT3 moderated this effect, suggesting an energetic cost of giving grooming. While our results support the spirit of the energetic deficiencies hypothesis, the directionality of the relationship between energy availability and movement is unexpected and suggests that lower-energy individuals may use strategies to reduce the costs of intermittent locomotion. Thus, future work should consider whether age-related declines in sociality may be a by-product of a strategy to conserve energy.This article is part of the discussion meeting issue 'Understanding age and society using natural populations'.

将野生灵长类动物(Papio ursinus)的能量供应、运动和社会性联系起来。
对 "社会老龄化 "的近似机制,即社会活动的转变和社会网络的缩小,研究不足。有研究认为,能量不足(通常出现在老年个体身上)可能会限制运动,进而限制社会性,但目前还缺乏对这些中间机制的实证检验。在这里,我们研究了野生查克马狒狒(Papio ursinus),将粪便中的三碘甲状腺原氨酸(fT3)、高分辨率全球定位系统数据(运动和社会接近度)和加速度测量(社会梳理持续时间)结合起来进行测量。更高的 fT3(以个体平均值为中心)与更长的驻留时间(即在同一区域停留更长时间)相关,而驻留时间又与社交机会(即身体接近程度)呈正相关。有更多社交机会的个体会得到更多的梳理,而对于给予的梳理,fT3则会调节这种效应,这表明给予梳理需要付出能量代价。虽然我们的结果支持能量不足假说的精神,但能量可用性与运动之间关系的方向性是出乎意料的,这表明能量较低的个体可能会使用策略来降低间歇性运动的成本。因此,未来的工作应该考虑与年龄相关的社会性下降是否可能是节约能量策略的副产品。
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来源期刊
CiteScore
11.80
自引率
1.60%
发文量
365
审稿时长
3 months
期刊介绍: The journal publishes topics across the life sciences. As long as the core subject lies within the biological sciences, some issues may also include content crossing into other areas such as the physical sciences, social sciences, biophysics, policy, economics etc. Issues generally sit within four broad areas (although many issues sit across these areas): Organismal, environmental and evolutionary biology Neuroscience and cognition Cellular, molecular and developmental biology Health and disease.
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