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More allogrooming is followed by higher physiological stress in wild female baboons
,
Michael Heistermann,
Andrew King ,
Ines Fuertbauer
Biology Letters, Volume: 20, Issue: 8
Swansea University Authors:
Charlotte Christensen, Anna Bracken, Andrew King , Ines Fuertbauer
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DOI (Published version): 10.1098/rsbl.2024.0163
Abstract
Social bonds increase fitness in a range of mammals. One pathway by which social bonds may increase fitness is by reducing the exposure to physiological stress, i.e., glucocorticoid (GC) hormones, that can be detrimental to health and survival. This is achieved through downregulating hypothalamic-pi...
| Published in: | Biology Letters |
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| ISSN: | 1744-9561 1744-957X |
| Published: |
The Royal Society
2024
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| Online Access: |
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| URI: | https://cronfa.swan.ac.uk/Record/cronfa66927 |
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| Abstract: |
Social bonds increase fitness in a range of mammals. One pathway by which social bonds may increase fitness is by reducing the exposure to physiological stress, i.e., glucocorticoid (GC) hormones, that can be detrimental to health and survival. This is achieved through downregulating hypothalamic-pituitary-adrenal (HPA)-axis activity. Indeed, long-term measures of social (grooming) bonds are often negatively correlated with HPA-axis activity. However, the proximate role of physical touch through allogrooming remains an open question in the sociality-health-fitness debate. Demonstrating potential anxiolytic benefits of grooming in the wild is hindered by methodological limitations. Here, we match accelerometer-identified grooming in wild female chacma baboons (Papio ursinus) to non-invasive faecal GC metabolite concentrations (fGCs). Consistent with previous work, we found a negative (but statistically non-significant) overall relationship between individual averaged fGCs and grooming rates. However, when time-matching grooming to fGCs, we found both more giving and receiving grooming was followed by higher fGCs. This upregulation of HPA-axis activity suggests that maintaining social bonds (and its ultimate fitness benefits), may come at a shorter-term physiological cost. This finding sheds new light on a ubiquitous social behaviour typically considered ‘relaxing’ and suggests sociopositive contact can trigger physiological stress. |
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| College: |
Faculty of Science and Engineering |
| Funders: |
C.C. and A.M.B. were supported by College of Science/ Swansea University PhD scholarships. I.F. was supported by an ASAB research grant. M.J.O. was supported by NRF incentive funding. |
| Issue: |
8 |