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A new flexible model for maintenance and feeding expenses that improves description of individual growth in insects

Metabolic theories in ecology interpret ecological patterns at different levels through the lens of metabolism, typically applying allometric scaling to describe energy use. This requires a sound theory for individual metabolism. Common mechanistic growth models, such as ‘von Bertalanffy’, ‘dynamic...

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Autores principales: Mauritsson, Karl, Jonsson, Tomas
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10556006/
https://www.ncbi.nlm.nih.gov/pubmed/37798309
http://dx.doi.org/10.1038/s41598-023-43743-1
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author Mauritsson, Karl
Jonsson, Tomas
author_facet Mauritsson, Karl
Jonsson, Tomas
author_sort Mauritsson, Karl
collection PubMed
description Metabolic theories in ecology interpret ecological patterns at different levels through the lens of metabolism, typically applying allometric scaling to describe energy use. This requires a sound theory for individual metabolism. Common mechanistic growth models, such as ‘von Bertalanffy’, ‘dynamic energy budgets’ and the ‘ontogenetic growth model’ lack some potentially important aspects, especially regarding regulation of somatic maintenance. We develop a model for ontogenetic growth of animals, applicable to ad libitum and food limited conditions, based on an energy balance that expresses growth as the net result of assimilation and metabolic costs for maintenance, feeding and food processing. The most important contribution is the division of maintenance into a ‘non-negotiable’ and a ‘negotiable’ part, potentially resulting in hyperallometric scaling of maintenance and downregulated maintenance under food restriction. The model can also account for effects of body composition and type of growth at the cellular level. Common mechanistic growth models often fail to fully capture growth of insects. However, our model was able to capture empirical growth patterns observed in house crickets.
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spelling pubmed-105560062023-10-07 A new flexible model for maintenance and feeding expenses that improves description of individual growth in insects Mauritsson, Karl Jonsson, Tomas Sci Rep Article Metabolic theories in ecology interpret ecological patterns at different levels through the lens of metabolism, typically applying allometric scaling to describe energy use. This requires a sound theory for individual metabolism. Common mechanistic growth models, such as ‘von Bertalanffy’, ‘dynamic energy budgets’ and the ‘ontogenetic growth model’ lack some potentially important aspects, especially regarding regulation of somatic maintenance. We develop a model for ontogenetic growth of animals, applicable to ad libitum and food limited conditions, based on an energy balance that expresses growth as the net result of assimilation and metabolic costs for maintenance, feeding and food processing. The most important contribution is the division of maintenance into a ‘non-negotiable’ and a ‘negotiable’ part, potentially resulting in hyperallometric scaling of maintenance and downregulated maintenance under food restriction. The model can also account for effects of body composition and type of growth at the cellular level. Common mechanistic growth models often fail to fully capture growth of insects. However, our model was able to capture empirical growth patterns observed in house crickets. Nature Publishing Group UK 2023-10-05 /pmc/articles/PMC10556006/ /pubmed/37798309 http://dx.doi.org/10.1038/s41598-023-43743-1 Text en © The Author(s) 2023, corrected publication 2023 https://creativecommons.org/licenses/by/4.0/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 licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence 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 licence, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) .
spellingShingle Article
Mauritsson, Karl
Jonsson, Tomas
A new flexible model for maintenance and feeding expenses that improves description of individual growth in insects
title A new flexible model for maintenance and feeding expenses that improves description of individual growth in insects
title_full A new flexible model for maintenance and feeding expenses that improves description of individual growth in insects
title_fullStr A new flexible model for maintenance and feeding expenses that improves description of individual growth in insects
title_full_unstemmed A new flexible model for maintenance and feeding expenses that improves description of individual growth in insects
title_short A new flexible model for maintenance and feeding expenses that improves description of individual growth in insects
title_sort new flexible model for maintenance and feeding expenses that improves description of individual growth in insects
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10556006/
https://www.ncbi.nlm.nih.gov/pubmed/37798309
http://dx.doi.org/10.1038/s41598-023-43743-1
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