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An experimental test of the role of environmental temperature variability on ectotherm molecular, physiological and life-history traits: Implications for global warming
Abstract
Global climate change is one of the greatest threats to biodiversity; one of the most important effects is the increase in the mean earth surface temperature. However, another but poorly studied main characteristic of global change appears to be an increase in temperature variability. Most of the current analyses of global change have focused on mean values, paying less attention to the role of the fluctuations of environmental variables. We experimentally tested the effects of environmental temperature variability on characteristics associated to the fitness (body mass balance, growth rate, and survival), metabolic rate (VCO(2)) and molecular traits (heat shock protein expression, Hsp70), in an ectotherm, the terrestrial woodlouse Porcellio laevis. Our general hypotheses are that higher values of thermal amplitude may directly affect life-history traits, increasing metabolic cost and stress responses. At first, results supported our hypotheses showing a diversity of responses among characters to the experimental thermal treatments. We emphasize that knowledge about the cellular and physiological mechanisms by which animals cope with environmental changes is essential to understand the impact of mean climatic change and variability. Also, we consider that the studies that only incorporate only mean temperatures to predict the life-history, ecological and evolutionary impact of global temperature changes present important problems to predict the diversity of responses of the organism. This is because the analysis ignores the complexity and details of the molecular and physiological processes by which animals cope with environmental variability, as well as the life-history and demographic consequences of such variability.
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Impacts of climate warming on terrestrial ectotherms across latitude
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Self-citationLeclercq-Dransart, J., Pernin, C., Demuynck, S., Grumiaux, F., Lemière, S., & Leprêtre, A. (2019) · European Journal of Soil Biology · doi:10.1016/j.ejsobi.2018.11.005 · Cited by 16
Metadata
- Authors
- Folguera, G., Bastías, D. A., Caers, J., Rojas, J. M., Piulachs, M.-D., Bellés, X., & Bozinovic, F.
- Affiliations
- Pontificia Universidad Católica de Chile (CL)
- Consejo Superior de Investigaciones Científicas (ES)
- Corresponding author
- Bozinovic, Francisco
- Venue
- Comparative Biochemistry and Physiology Part A: Molecular & Integrative Physiology
- Publisher
- Elsevier BV
- Published
- 2011-07
- Volume
- 159
- Issue
- 3
- Pages
- 242-246
- ISSN
- 1095-6433 (ISSN-L)
- OpenAlex
- W2058312513
- Cited by
- 98
- References
- 2
- Citations by year
- 2026: 5 · 2025: 2 · 2024: 5 · 2023: 7 · 2022: 8 · 2021: 5 · 2020: 8 · 2019: 14 · 2018: 4 · 2017: 7 · 2016: 6 · 2015: 8 · 2014: 5 · 2013: 8 · 2012: 3
- FWCI
- 4.96
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Comparative Biochemistry and Physiology Part A Molecular & Integrative Physiology (publishedVersion)
- PubMed (publishedVersion)
- DIGITAL.CSIC (Spanish National Research Council (CSIC)) (submittedVersion)
- Funders
- Fondo de Financiamiento de Centros de Investigación en Áreas Prioritarias
- Topics
- Physical Sciences › Environmental Science › Ecology › Physiological and biochemical adaptations
- Life Sciences › Agricultural and Biological Sciences › Animal Science and Zoology › Effects of Environmental Stressors on Livestock
- Life Sciences › Agricultural and Biological Sciences › Ecology, Evolution, Behavior and Systematics › Animal Behavior and Reproduction
- Keywords
- temperature variability, temperature amplitude, ectotherms, Porcellio laevis, woodlouse, heat shock proteins, HSP70, metabolic rate, oxygen consumption, growth rate, survival, life-history traits, global warming, climate change, stress response
- MeSH terms
- Animals, Body Temperature Regulation, Environment, Temperature, Global Warming
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