Geographic variation in acclimation responses of thermal tolerance in South African diving beetles (Dytiscidae: Coleoptera)
Understanding sources of variation in animal thermal limits is critical to forecasting ecological responses to climate change. Here, we estimated upper and lower thermal limits, and their capacity to respond to thermal acclimation, in several species and populations of diving beetles (Dytiscidae) from diverse geographic regions representative of variable climate within South Africa. We also considered ecoregions and latitudinal ranges as potential predictors of thermal limits and the plasticity thereof. For upper thermal limits, species showed significant variation and limited acclimation-related plasticity. Lower thermal limits responded to acclimation in some cases and showed marked variation among species that could be explained by taxonomic affiliation and ecoregion. Limited acclimation ability in the species included in this study suggest plasticity of thermal limits will not be a likely buffer for coping with climate change. From the present results for the Dytiscidae of the region, it appears the group may be particularly susceptible to heat and/or drought and may thus serve as useful indicator species of ecosystem change. Understanding how these climate-related impacts play out at different spatial and temporal scales will have profound implications for conservation management and functional responses, especially important in a region already showing a trend for warming and drying.
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Elsevier
2021-07
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Subjects: | Biodiversity, Season, Fitness, Flexibility, Terrestrial, Aquatic, Invertebrate, Climate variability hypothesis, |
Online Access: | http://hdl.handle.net/10261/251043 http://dx.doi.org/10.13039/501100004837 |
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dig-ibe-es-10261-2510432022-03-14T12:41:23Z Geographic variation in acclimation responses of thermal tolerance in South African diving beetles (Dytiscidae: Coleoptera) Hidalgo-Galiana, Amparo Ribera, Ignacio Terblanche, John S. Ministerio de Ciencia e Innovación (España) Ministerio de Educación y Ciencia (España) Biodiversity Season Fitness Flexibility Terrestrial Aquatic Invertebrate Climate variability hypothesis Understanding sources of variation in animal thermal limits is critical to forecasting ecological responses to climate change. Here, we estimated upper and lower thermal limits, and their capacity to respond to thermal acclimation, in several species and populations of diving beetles (Dytiscidae) from diverse geographic regions representative of variable climate within South Africa. We also considered ecoregions and latitudinal ranges as potential predictors of thermal limits and the plasticity thereof. For upper thermal limits, species showed significant variation and limited acclimation-related plasticity. Lower thermal limits responded to acclimation in some cases and showed marked variation among species that could be explained by taxonomic affiliation and ecoregion. Limited acclimation ability in the species included in this study suggest plasticity of thermal limits will not be a likely buffer for coping with climate change. From the present results for the Dytiscidae of the region, it appears the group may be particularly susceptible to heat and/or drought and may thus serve as useful indicator species of ecosystem change. Understanding how these climate-related impacts play out at different spatial and temporal scales will have profound implications for conservation management and functional responses, especially important in a region already showing a trend for warming and drying. This research was funded by projects to J.S. Terblanche and CGL2010-15755 to IR and the EEBB of FPI grant BES-2008-007869 to AHG. Peer reviewed 2021-09-27T14:48:48Z 2021-09-27T14:48:48Z 2021-07 artículo http://purl.org/coar/resource_type/c_6501 Comparative Biochemistry and Physiology Part A: Molecular & Integrative Physiology 257: 110955 (2021) 1095-6433 http://hdl.handle.net/10261/251043 10.1016/j.cbpa.2021.110955 http://dx.doi.org/10.13039/501100004837 en #PLACEHOLDER_PARENT_METADATA_VALUE# #PLACEHOLDER_PARENT_METADATA_VALUE# info:eu-repo/grantAgreement/MICINN/Programa Nacional de Investigación Fundamental/CGL2010-15755 info:eu-repo/grantAgreement/MEC/Programa Nacional de Formación/BES-2008-007869 https://doi.org/10.1016/j.cbpa.2021.110955 Sí none application/pdf Elsevier |
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Biodiversity Season Fitness Flexibility Terrestrial Aquatic Invertebrate Climate variability hypothesis Biodiversity Season Fitness Flexibility Terrestrial Aquatic Invertebrate Climate variability hypothesis |
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Biodiversity Season Fitness Flexibility Terrestrial Aquatic Invertebrate Climate variability hypothesis Biodiversity Season Fitness Flexibility Terrestrial Aquatic Invertebrate Climate variability hypothesis Hidalgo-Galiana, Amparo Ribera, Ignacio Terblanche, John S. Geographic variation in acclimation responses of thermal tolerance in South African diving beetles (Dytiscidae: Coleoptera) |
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Understanding sources of variation in animal thermal limits is critical to forecasting ecological responses to climate change. Here, we estimated upper and lower thermal limits, and their capacity to respond to thermal acclimation, in several species and populations of diving beetles (Dytiscidae) from diverse geographic regions representative of variable climate within South Africa. We also considered ecoregions and latitudinal ranges as potential predictors of thermal limits and the plasticity thereof. For upper thermal limits, species showed significant variation and limited acclimation-related plasticity. Lower thermal limits responded to acclimation in some cases and showed marked variation among species that could be explained by taxonomic affiliation and ecoregion. Limited acclimation ability in the species included in this study suggest plasticity of thermal limits will not be a likely buffer for coping with climate change. From the present results for the Dytiscidae of the region, it appears the group may be particularly susceptible to heat and/or drought and may thus serve as useful indicator species of ecosystem change. Understanding how these climate-related impacts play out at different spatial and temporal scales will have profound implications for conservation management and functional responses, especially important in a region already showing a trend for warming and drying. |
author2 |
Ministerio de Ciencia e Innovación (España) |
author_facet |
Ministerio de Ciencia e Innovación (España) Hidalgo-Galiana, Amparo Ribera, Ignacio Terblanche, John S. |
format |
artículo |
topic_facet |
Biodiversity Season Fitness Flexibility Terrestrial Aquatic Invertebrate Climate variability hypothesis |
author |
Hidalgo-Galiana, Amparo Ribera, Ignacio Terblanche, John S. |
author_sort |
Hidalgo-Galiana, Amparo |
title |
Geographic variation in acclimation responses of thermal tolerance in South African diving beetles (Dytiscidae: Coleoptera) |
title_short |
Geographic variation in acclimation responses of thermal tolerance in South African diving beetles (Dytiscidae: Coleoptera) |
title_full |
Geographic variation in acclimation responses of thermal tolerance in South African diving beetles (Dytiscidae: Coleoptera) |
title_fullStr |
Geographic variation in acclimation responses of thermal tolerance in South African diving beetles (Dytiscidae: Coleoptera) |
title_full_unstemmed |
Geographic variation in acclimation responses of thermal tolerance in South African diving beetles (Dytiscidae: Coleoptera) |
title_sort |
geographic variation in acclimation responses of thermal tolerance in south african diving beetles (dytiscidae: coleoptera) |
publisher |
Elsevier |
publishDate |
2021-07 |
url |
http://hdl.handle.net/10261/251043 http://dx.doi.org/10.13039/501100004837 |
work_keys_str_mv |
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1777668797355786240 |