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Support vector machines for explaining physiological stress response in Wood mice (Apodemus sylvaticus)
Physiological stress response is a crucial adaptive mechanism for prey species survival. This paper aims to identify the main environmental and/or individual factors better explaining the stress response in Wood mice, Apodemus sylvaticus. We analyzed alterations in fecal glucocorticoid metabolite (F...
Autores principales: | , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group UK
2018
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5803235/ https://www.ncbi.nlm.nih.gov/pubmed/29416078 http://dx.doi.org/10.1038/s41598-018-20646-0 |
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author | Sánchez-González, Beatriz Barja, Isabel Piñeiro, Ana Hernández-González, M. Carmen Silván, Gema Illera, Juan Carlos Latorre, Roberto |
author_facet | Sánchez-González, Beatriz Barja, Isabel Piñeiro, Ana Hernández-González, M. Carmen Silván, Gema Illera, Juan Carlos Latorre, Roberto |
author_sort | Sánchez-González, Beatriz |
collection | PubMed |
description | Physiological stress response is a crucial adaptive mechanism for prey species survival. This paper aims to identify the main environmental and/or individual factors better explaining the stress response in Wood mice, Apodemus sylvaticus. We analyzed alterations in fecal glucocorticoid metabolite (FCM) concentration – extensively used as an accurate measure of the physiological stress response – of wild mice fecal samples seasonally collected during three years. Then, support vector machines were built to predict said concentration according to different stressors. These statistical tools appear to be particularly suitable for small datasets with substantial number of dimensions, corroborating that the stress response is an extremely complex process in which multiple factors can simultaneously partake in a context-dependent manner, i.e., the role of each potential stressor varies in time depending on other stressors. However, air-humidity, temperature and body-weight allowed us to explain the FCM fluctuation in 98% of our samples. The relevance of air-humidity and temperature altering FCM level could be linked to the presence of an abundant vegetation cover and, therefore, to food availability and predation risk perception. Body-weight might be related to the stress produced by reproduction and other intraspecific relationships such as social dominance or territorial behavior. |
format | Online Article Text |
id | pubmed-5803235 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2018 |
publisher | Nature Publishing Group UK |
record_format | MEDLINE/PubMed |
spelling | pubmed-58032352018-02-14 Support vector machines for explaining physiological stress response in Wood mice (Apodemus sylvaticus) Sánchez-González, Beatriz Barja, Isabel Piñeiro, Ana Hernández-González, M. Carmen Silván, Gema Illera, Juan Carlos Latorre, Roberto Sci Rep Article Physiological stress response is a crucial adaptive mechanism for prey species survival. This paper aims to identify the main environmental and/or individual factors better explaining the stress response in Wood mice, Apodemus sylvaticus. We analyzed alterations in fecal glucocorticoid metabolite (FCM) concentration – extensively used as an accurate measure of the physiological stress response – of wild mice fecal samples seasonally collected during three years. Then, support vector machines were built to predict said concentration according to different stressors. These statistical tools appear to be particularly suitable for small datasets with substantial number of dimensions, corroborating that the stress response is an extremely complex process in which multiple factors can simultaneously partake in a context-dependent manner, i.e., the role of each potential stressor varies in time depending on other stressors. However, air-humidity, temperature and body-weight allowed us to explain the FCM fluctuation in 98% of our samples. The relevance of air-humidity and temperature altering FCM level could be linked to the presence of an abundant vegetation cover and, therefore, to food availability and predation risk perception. Body-weight might be related to the stress produced by reproduction and other intraspecific relationships such as social dominance or territorial behavior. Nature Publishing Group UK 2018-02-07 /pmc/articles/PMC5803235/ /pubmed/29416078 http://dx.doi.org/10.1038/s41598-018-20646-0 Text en © The Author(s) 2018 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/. |
spellingShingle | Article Sánchez-González, Beatriz Barja, Isabel Piñeiro, Ana Hernández-González, M. Carmen Silván, Gema Illera, Juan Carlos Latorre, Roberto Support vector machines for explaining physiological stress response in Wood mice (Apodemus sylvaticus) |
title | Support vector machines for explaining physiological stress response in Wood mice (Apodemus sylvaticus) |
title_full | Support vector machines for explaining physiological stress response in Wood mice (Apodemus sylvaticus) |
title_fullStr | Support vector machines for explaining physiological stress response in Wood mice (Apodemus sylvaticus) |
title_full_unstemmed | Support vector machines for explaining physiological stress response in Wood mice (Apodemus sylvaticus) |
title_short | Support vector machines for explaining physiological stress response in Wood mice (Apodemus sylvaticus) |
title_sort | support vector machines for explaining physiological stress response in wood mice (apodemus sylvaticus) |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5803235/ https://www.ncbi.nlm.nih.gov/pubmed/29416078 http://dx.doi.org/10.1038/s41598-018-20646-0 |
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