Thermal biology of aquatic insects in alpine lakes: Insights from diving beetles

High mountain areas are especially vulnerable to global warming, as they ex-perience faster temperature changes than lowlands in a climate change con-text. Notably, increased temperatures and frequency of extreme flooding anddroughts, and the consequent decrease in ice cover and water availability f...

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Autores: Carbonell Hernández, José Antonio, Pallares Párraga, Susana, Velasco, J., Millán, A., Picazo, Félix, Abellán Ródenas, Pedro
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2023
País:España
Institución:Universidad de Sevilla (US)
Repositorio:idUS. Depósito de Investigación de la Universidad de Sevilla
OAI Identifier:oai:idus.us.es:11441/160437
Acceso en línea:https://hdl.handle.net/11441/160437
https://doi.org/10.1111/fwb.14190
Access Level:acceso abierto
Palabra clave:Climate change
Dytiscidae
glacial ponds
lower thermal limit
upper thermal limit
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spelling Thermal biology of aquatic insects in alpine lakes: Insights from diving beetlesCarbonell Hernández, José AntonioPallares Párraga, SusanaVelasco, J.Millán, A.Picazo, FélixAbellán Ródenas, PedroClimate changeDytiscidaeglacial pondslower thermal limitupper thermal limitHigh mountain areas are especially vulnerable to global warming, as they ex-perience faster temperature changes than lowlands in a climate change con-text. Notably, increased temperatures and frequency of extreme flooding anddroughts, and the consequent decrease in ice cover and water availability fluctua-tions, will induce important physical changes in alpine freshwater systems. Thus,assessing thermal limits and exploring overwintering strategies of aquatic alpineinsects is pivotal to understanding how aquatic communities of high-mountainfresh waters will respond to climate change. However, knowledge on these topicsis still scarce for aquatic alpine insects.2. Here, the thermal biology of adults of five diving beetle species from alpinelakes located in the Sierra Nevada mountain range (southern Iberia) was stud-ied. Cold tolerance was measured estimating the supercooling point (SCP), lowerlethal temperature (LLT), tolerance to ice enclosure and to submersion, whereasheat tolerance was assessed from the heat coma temperature and upper lethaltemperature.3. All of the species survived ice enclosure for 3 h. Furthermore, three of the studiedspecies had SCPs higher than their LLTs, suggesting that they could be freeze-tolerant. All species except Agabus nevadensis also were tolerant to submersion,which could be a key adaptation for overwintering underwater below the icecover as adults, reducing risk from freezing conditions in the air. The species didnot differ significantly in their upper thermal limits, which were similar to those ofother dytiscids from lower altitudes.4. Overall, our results suggest that increasing temperatures is not expected to bethe most important threat for the water beetle populations in Sierra Nevada, butrather the colonisation of alpine lakes by lowland dytiscids in a warmer climatescenario.MCIN/AEI/ 10.13039/501100011033 - PID2019-108895GB-I00VI PPIT Universidad de SevillaWileyZoologíaMinisterio de Ciencia, Innovación y Universidades (MICINN). EspañaAgencia Estatal de Investigación. EspañaUniversidad de Sevilla2023info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfapplication/pdfhttps://hdl.handle.net/11441/160437https://doi.org/10.1111/fwb.14190reponame:idUS. Depósito de Investigación de la Universidad de Sevillainstname:Universidad de Sevilla (US)InglésFreshwater Biology, 69 (1), 34-46.PID2019-108895GB-I00USE VI PPIThttps://doi.org/10.1111/fwb.14190info:eu-repo/semantics/openAccessoai:idus.us.es:11441/1604372026-06-17T12:51:07Z
dc.title.none.fl_str_mv Thermal biology of aquatic insects in alpine lakes: Insights from diving beetles
title Thermal biology of aquatic insects in alpine lakes: Insights from diving beetles
spellingShingle Thermal biology of aquatic insects in alpine lakes: Insights from diving beetles
Carbonell Hernández, José Antonio
Climate change
Dytiscidae
glacial ponds
lower thermal limit
upper thermal limit
title_short Thermal biology of aquatic insects in alpine lakes: Insights from diving beetles
title_full Thermal biology of aquatic insects in alpine lakes: Insights from diving beetles
title_fullStr Thermal biology of aquatic insects in alpine lakes: Insights from diving beetles
title_full_unstemmed Thermal biology of aquatic insects in alpine lakes: Insights from diving beetles
title_sort Thermal biology of aquatic insects in alpine lakes: Insights from diving beetles
dc.creator.none.fl_str_mv Carbonell Hernández, José Antonio
Pallares Párraga, Susana
Velasco, J.
Millán, A.
Picazo, Félix
Abellán Ródenas, Pedro
author Carbonell Hernández, José Antonio
author_facet Carbonell Hernández, José Antonio
Pallares Párraga, Susana
Velasco, J.
Millán, A.
Picazo, Félix
Abellán Ródenas, Pedro
author_role author
author2 Pallares Párraga, Susana
Velasco, J.
Millán, A.
Picazo, Félix
Abellán Ródenas, Pedro
author2_role author
author
author
author
author
dc.contributor.none.fl_str_mv Zoología
Ministerio de Ciencia, Innovación y Universidades (MICINN). España
Agencia Estatal de Investigación. España
Universidad de Sevilla
dc.subject.none.fl_str_mv Climate change
Dytiscidae
glacial ponds
lower thermal limit
upper thermal limit
topic Climate change
Dytiscidae
glacial ponds
lower thermal limit
upper thermal limit
description High mountain areas are especially vulnerable to global warming, as they ex-perience faster temperature changes than lowlands in a climate change con-text. Notably, increased temperatures and frequency of extreme flooding anddroughts, and the consequent decrease in ice cover and water availability fluctua-tions, will induce important physical changes in alpine freshwater systems. Thus,assessing thermal limits and exploring overwintering strategies of aquatic alpineinsects is pivotal to understanding how aquatic communities of high-mountainfresh waters will respond to climate change. However, knowledge on these topicsis still scarce for aquatic alpine insects.2. Here, the thermal biology of adults of five diving beetle species from alpinelakes located in the Sierra Nevada mountain range (southern Iberia) was stud-ied. Cold tolerance was measured estimating the supercooling point (SCP), lowerlethal temperature (LLT), tolerance to ice enclosure and to submersion, whereasheat tolerance was assessed from the heat coma temperature and upper lethaltemperature.3. All of the species survived ice enclosure for 3 h. Furthermore, three of the studiedspecies had SCPs higher than their LLTs, suggesting that they could be freeze-tolerant. All species except Agabus nevadensis also were tolerant to submersion,which could be a key adaptation for overwintering underwater below the icecover as adults, reducing risk from freezing conditions in the air. The species didnot differ significantly in their upper thermal limits, which were similar to those ofother dytiscids from lower altitudes.4. Overall, our results suggest that increasing temperatures is not expected to bethe most important threat for the water beetle populations in Sierra Nevada, butrather the colonisation of alpine lakes by lowland dytiscids in a warmer climatescenario.
publishDate 2023
dc.date.none.fl_str_mv 2023
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv https://hdl.handle.net/11441/160437
https://doi.org/10.1111/fwb.14190
url https://hdl.handle.net/11441/160437
https://doi.org/10.1111/fwb.14190
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv Freshwater Biology, 69 (1), 34-46.
PID2019-108895GB-I00
USE VI PPIT
https://doi.org/10.1111/fwb.14190
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Wiley
publisher.none.fl_str_mv Wiley
dc.source.none.fl_str_mv reponame:idUS. Depósito de Investigación de la Universidad de Sevilla
instname:Universidad de Sevilla (US)
instname_str Universidad de Sevilla (US)
reponame_str idUS. Depósito de Investigación de la Universidad de Sevilla
collection idUS. Depósito de Investigación de la Universidad de Sevilla
repository.name.fl_str_mv
repository.mail.fl_str_mv
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