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Effects of accelerometry-derived physical activity energy expenditure on urinary C-peptide levels in a wild primate (Papio ursinus)

Angharad Morgan, Charlotte Christensen, Anna M. Bracken, M. Justin O'Riain, Andrew King Orcid Logo, Ines Fuertbauer Orcid Logo

Hormones and Behavior, Volume: 152, Start page: 105355

Swansea University Authors: Andrew King Orcid Logo, Ines Fuertbauer Orcid Logo

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DOI (Published version): 10.1016/j.yhbeh.2023.105355

Abstract

Animals have finite energy reserves for growth, survival, and reproduction and must maintain a stable energy balance. Measuring energy balance in the wild, however, is beset with methodological challenges. Quantification of urinary C-peptide (uCP), a proxy for insulin secretion, has enabled research...

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Published in: Hormones and Behavior
ISSN: 0018-506X
Published: Elsevier BV 2023
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URI: https://cronfa.swan.ac.uk/Record/cronfa63122
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Measuring energy balance in the wild, however, is beset with methodological challenges. Quantification of urinary C-peptide (uCP), a proxy for insulin secretion, has enabled researchers to non-invasively estimate energy balance, and positive relationships between uCP levels and energy intake have been documented in numerous non-human primates. Comparatively few studies show that, consistent with insulin physiology, energy expenditure also alters levels of uCP. The timescale and extent of this relationship, however, remains unclear given the reliance on crude measures of activity and inferred energy expenditure. Here, for the first time, we test for effects of accelerometer-derived Vectorial Dynamic Body Acceleration (VeDBA) - a continuous measure of physical activity energy expenditure - on urinary C-peptide (uCP) levels in n = 12 wild chacma baboons (Papio ursinus). Applying a model selection approach, we show that VeDBA summed over short timescales (30 min to 1 h) prior to urine collection was negatively associated with uCP levels. Using the acceleration-based time individuals spent ‘non-stationary’ (i.e. locomoting) prior to urine collection as a predictor - instead of summed VeDBA - revealed similar but less clear results. 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spelling v2 63122 2023-04-12 Effects of accelerometry-derived physical activity energy expenditure on urinary C-peptide levels in a wild primate (Papio ursinus) cc115b4bc4672840f960acc1cb078642 0000-0002-6870-9767 Andrew King Andrew King true false f682ec95fa97c4fabb57dc098a9fdaaa 0000-0003-1404-6280 Ines Fuertbauer Ines Fuertbauer true false 2023-04-12 SBI Animals have finite energy reserves for growth, survival, and reproduction and must maintain a stable energy balance. Measuring energy balance in the wild, however, is beset with methodological challenges. Quantification of urinary C-peptide (uCP), a proxy for insulin secretion, has enabled researchers to non-invasively estimate energy balance, and positive relationships between uCP levels and energy intake have been documented in numerous non-human primates. Comparatively few studies show that, consistent with insulin physiology, energy expenditure also alters levels of uCP. The timescale and extent of this relationship, however, remains unclear given the reliance on crude measures of activity and inferred energy expenditure. Here, for the first time, we test for effects of accelerometer-derived Vectorial Dynamic Body Acceleration (VeDBA) - a continuous measure of physical activity energy expenditure - on urinary C-peptide (uCP) levels in n = 12 wild chacma baboons (Papio ursinus). Applying a model selection approach, we show that VeDBA summed over short timescales (30 min to 1 h) prior to urine collection was negatively associated with uCP levels. Using the acceleration-based time individuals spent ‘non-stationary’ (i.e. locomoting) prior to urine collection as a predictor - instead of summed VeDBA - revealed similar but less clear results. Overall, the negative relationship between VeDBA and uCP levels highlights the importance of quantifying physical activity energy expenditure when using uCP measures to estimate energy balance and has potential implications for the field of energetics accelerometry. Journal Article Hormones and Behavior 152 105355 Elsevier BV 0018-506X Baboons, C-peptide, Dynamic body acceleration, Energy balance, Energy expenditure, Tri-axial accelerometry, VeDBA 1 6 2023 2023-06-01 10.1016/j.yhbeh.2023.105355 http://dx.doi.org/10.1016/j.yhbeh.2023.105355 COLLEGE NANME Biosciences COLLEGE CODE SBI Swansea University We thank the Baboon Technical Team, Cape Nature, and SANParks for authorisation to conduct our research. We also thank Human Wildlife Solutions, field assistants Lucy Robertson, Charlotte Solman, and Francesca Marshall-Stochmal, vets Dorothy Breed and Gary Buhrman, Esme Beamish, and Layla King for their help and support and Stuart Semple, Emily Shepard, and two anonymous reviewers for providing comments on earlier drafts. We are grateful to the Association for the Study of Animal Behaviour for supporting this work with a research grant awarded to IF. 2023-05-18T14:42:47.3446613 2023-04-12T11:23:21.9024226 Faculty of Science and Engineering School of Biosciences, Geography and Physics - Biosciences Angharad Morgan 1 Charlotte Christensen 2 Anna M. Bracken 3 M. Justin O'Riain 4 Andrew King 0000-0002-6870-9767 5 Ines Fuertbauer 0000-0003-1404-6280 6 63122__27015__168e4ae9038d46a19f1a0bef0d5cf4dc.pdf 63122.pdf 2023-04-12T11:26:49.6217457 Output 1377775 application/pdf Version of Record true Under a Creative Commons license CC BY true eng http://creativecommons.org/licenses/by/4.0/
title Effects of accelerometry-derived physical activity energy expenditure on urinary C-peptide levels in a wild primate (Papio ursinus)
spellingShingle Effects of accelerometry-derived physical activity energy expenditure on urinary C-peptide levels in a wild primate (Papio ursinus)
Andrew King
Ines Fuertbauer
title_short Effects of accelerometry-derived physical activity energy expenditure on urinary C-peptide levels in a wild primate (Papio ursinus)
title_full Effects of accelerometry-derived physical activity energy expenditure on urinary C-peptide levels in a wild primate (Papio ursinus)
title_fullStr Effects of accelerometry-derived physical activity energy expenditure on urinary C-peptide levels in a wild primate (Papio ursinus)
title_full_unstemmed Effects of accelerometry-derived physical activity energy expenditure on urinary C-peptide levels in a wild primate (Papio ursinus)
title_sort Effects of accelerometry-derived physical activity energy expenditure on urinary C-peptide levels in a wild primate (Papio ursinus)
author_id_str_mv cc115b4bc4672840f960acc1cb078642
f682ec95fa97c4fabb57dc098a9fdaaa
author_id_fullname_str_mv cc115b4bc4672840f960acc1cb078642_***_Andrew King
f682ec95fa97c4fabb57dc098a9fdaaa_***_Ines Fuertbauer
author Andrew King
Ines Fuertbauer
author2 Angharad Morgan
Charlotte Christensen
Anna M. Bracken
M. Justin O'Riain
Andrew King
Ines Fuertbauer
format Journal article
container_title Hormones and Behavior
container_volume 152
container_start_page 105355
publishDate 2023
institution Swansea University
issn 0018-506X
doi_str_mv 10.1016/j.yhbeh.2023.105355
publisher Elsevier BV
college_str Faculty of Science and Engineering
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hierarchy_top_id facultyofscienceandengineering
hierarchy_top_title Faculty of Science and Engineering
hierarchy_parent_id facultyofscienceandengineering
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department_str School of Biosciences, Geography and Physics - Biosciences{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Biosciences, Geography and Physics - Biosciences
url http://dx.doi.org/10.1016/j.yhbeh.2023.105355
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description Animals have finite energy reserves for growth, survival, and reproduction and must maintain a stable energy balance. Measuring energy balance in the wild, however, is beset with methodological challenges. Quantification of urinary C-peptide (uCP), a proxy for insulin secretion, has enabled researchers to non-invasively estimate energy balance, and positive relationships between uCP levels and energy intake have been documented in numerous non-human primates. Comparatively few studies show that, consistent with insulin physiology, energy expenditure also alters levels of uCP. The timescale and extent of this relationship, however, remains unclear given the reliance on crude measures of activity and inferred energy expenditure. Here, for the first time, we test for effects of accelerometer-derived Vectorial Dynamic Body Acceleration (VeDBA) - a continuous measure of physical activity energy expenditure - on urinary C-peptide (uCP) levels in n = 12 wild chacma baboons (Papio ursinus). Applying a model selection approach, we show that VeDBA summed over short timescales (30 min to 1 h) prior to urine collection was negatively associated with uCP levels. Using the acceleration-based time individuals spent ‘non-stationary’ (i.e. locomoting) prior to urine collection as a predictor - instead of summed VeDBA - revealed similar but less clear results. Overall, the negative relationship between VeDBA and uCP levels highlights the importance of quantifying physical activity energy expenditure when using uCP measures to estimate energy balance and has potential implications for the field of energetics accelerometry.
published_date 2023-06-01T14:42:46Z
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