Impacts of behaviour and acclimation of metabolic rate on energetics in sheltered ectotherms: a climate change perspective

0584097 - ÚBO 2025 RIV GB eng J - Journal Article
Enriquez‐Urzelai, Urtzi - Gvoždík, Lumír
Impacts of behaviour and acclimation of metabolic rate on energetics in sheltered ectotherms: a climate change perspective.
Proceedings of the Royal Society B-Biological Sciences. Roč. 291, č. 2017 (2024), č. článku 20232152. ISSN 0962-8452. E-ISSN 1471-2954
R&D Projects: GA ČR(CZ) GA21-29169S
Institutional support: RVO:68081766
Keywords : energy budget * hydroregulation * mechanistic niche modelling * retreat site choice * thermoregulation
OECD category: Ecology
Impact factor: 4.7, year: 2022
Method of publishing: Limited access
https://royalsocietypublishing.org/doi/epdf/10.1098/rspb.2023.2152

Many ectothermic organisms counter harsh abiotic conditions by seeking refuge in underground retreats. Variations in soil hydrothermal properties within these retreats may impact their energy budget, survival and population dynamics. This makes retreat site choice a critical yet understudied component of their strategies for coping with climate change. We used a mechanistic modelling approach to explore the implications of behavioural adjustments and seasonal acclimation of metabolic rate on retreat depth and the energy budget of ectotherms, considering both current and future climate conditions. We used a temperate amphibian, the alpine newt (Ichthyosaura alpestris), as a model species. Our simulations predict an interactive influence of different thermo- and hydroregulatory strategies on the vertical positioning of individuals in underground refuges. The adoption of a particular strategy largely determines the impact of climate change on retreat site choice. Additionally, we found that, given the behavioural thermoregulation/hydroregulation and metabolic acclimation patterns considered, behaviour within the retreat has a greater impact on ectotherm energetics than acclimation of metabolic rate under different climate change scenarios. We conclude that further empirical research aimed at determining ectotherm behavioural strategies during both surface activity and inactivity is needed to understand their population dynamics and species viability under climate change.
Permanent Link: https://hdl.handle.net/11104/0352129