How social behaviour and life-history traits change with age and in the year prior to death in female yellow-bellied marmots
Abstract
Studies in natural populations are essential to understand the evolutionary ecology of senescence and terminal allocation. While there are an increasing number of studies investigating late-life variation in different life-history traits of wild populations, little is known about these patterns in social behaviour. We used long-term individual based data on yellow-bellied marmots (<i>Marmota flaviventer</i>) to quantify how affiliative social behaviours and different life-history traits vary with age and in the last year of life, and how patterns compare between the two. We found that some social behaviours and all life-history traits varied with age, whereas terminal last year of life effects were only observed in life-history traits. Our results imply that affiliative social behaviours do not act as a mechanism to adjust allocation among traits when close to death, and highlight the importance of adopting an integrative approach, studying late-life variation and senescence across multiple different traits, to allow the identification of potential trade-offs. This article is part of the theme issue 'Ageing and sociality: why, when and how does sociality change ageing patterns?'
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Knowledge graph centered on How social behaviour and life-history traits chang with 21 nodes and 92 connections. Top connected: Social network analysis of animal behaviour: a pro, Coupled dynamics of body mass and population growt, Daniel T. Blumstein, mark-recapture (Sciuridae), Social cohesion in yellow-bellied marmots is estab.
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References (108)
28 in Knowledge Hub, 80 external