Data/hora: 11/06/2024 06:24:28

Provedor de dados: | 5
País: | France
Título: | Individuals exhibit consistent differences in their metabolic rates across changing thermal conditions
Autores: | Auer, Sonya K.; Salin, Karine; Anderson, Graeme J.; Metcalfe, Neil B.
Data: | 2018-03
Ano: | 2018
Palavras-chave: | Aerobic scope; Consistency; Maximum metabolic rate; Standard metabolic rate; Stability; Thermal repeatability.
Resumo: | Metabolic rate has been linked to growth, reproduction, and survival at the individual level and is thought to have far reaching consequences for the ecology and evolution of organisms. However, differences in metabolic rate among individuals must be consistent (i.e. repeatable) over at least some portion of their lifetime in order to predict their longer-term effects on population dynamics and how they will respond to selection. Previous studies demonstrate that metabolic rates are repeatable under constant conditions but potentially less so in more variable environments. We measured the standard (= minimum) metabolic rate, maximum metabolic rate, and aerobic scope (= interval between standard and maximum rates) in juvenile brown trout (Salmo trutta) after 5 weeks acclimation to each of three consecutive test temperatures (10, 13, and then 16 °C) that simulated the warming conditions experienced throughout their first summer of growth. We found that metabolic rates are repeatable over a period of months under changing thermal conditions: individual trout exhibited consistent differences in all three metabolic traits across increasing temperatures. Initial among-individual differences in metabolism are thus likely to have significant consequences for fitness-related traits over key periods of their life history.
Tipo: | Text
Idioma: | Inglês

Identificador:

https://archimer.ifremer.fr/doc/00414/52585/53425.pdf

https://archimer.ifremer.fr/doc/00414/52585/56377.tif

DOI:10.1016/j.cbpa.2017.11.021

https://archimer.ifremer.fr/doc/00414/52585/

Editor: | Elsevier Science Inc
Formato: | application/pdf
Fonte: | Comparative Biochemistry And Physiology A-molecular &amp; Integrative Physiology (1095-6433) (Elsevier Science Inc), 2018-03 , Vol. 217 , P. 1-6

Fonte:

2017 The Authors. Published by Elsevier Inc. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/BY-NC-ND/4.0/).

info:eu-repo/semantics/openAccess

restricted use