Ageing and thermal performance in the sub-Antarctic wingless fly Anatalanta aptera (Diptera: Sphaeroceridae): older is better
International audience Senescence is a progressive biological process expressed in behavioural, morphological, physiological, biochemical and cellular age-related changes. Age-associated alterations in activity are regularly found in insects when examining whole-organism senescence over the adult li...
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ftinsu:oai:HAL:hal-00496128v1 2024-02-11T09:55:54+01:00 Ageing and thermal performance in the sub-Antarctic wingless fly Anatalanta aptera (Diptera: Sphaeroceridae): older is better Lalouette, Lisa Vernon, Philippe Amat, Hervé Renault, David Ecosystèmes, biodiversité, évolution Rennes (ECOBIO) Université de Rennes (UR)-Institut Ecologie et Environnement - CNRS Ecologie et Environnement (INEE-CNRS) Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS)-Observatoire des Sciences de l'Univers de Rennes (OSUR) Université de Rennes (UR)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Rennes 2 (UR2)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Rennes 2 (UR2)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Centre National de la Recherche Scientifique (CNRS) 2010 https://hal.science/hal-00496128 https://doi.org/10.1098/rsbl.2009.0873 en eng HAL CCSD Royal Society, The info:eu-repo/semantics/altIdentifier/doi/10.1098/rsbl.2009.0873 hal-00496128 https://hal.science/hal-00496128 doi:10.1098/rsbl.2009.0873 PUBMEDCENTRAL: PMC2880048 ISSN: 1744-9561 Biology Letters https://hal.science/hal-00496128 Biology Letters, 2010, 6, pp.346-349. ⟨10.1098/rsbl.2009.0873⟩ senescence CTmin locomotor activity fly chill-coma recovery [SDE.BE]Environmental Sciences/Biodiversity and Ecology info:eu-repo/semantics/article Journal articles 2010 ftinsu https://doi.org/10.1098/rsbl.2009.0873 2024-01-24T17:24:28Z International audience Senescence is a progressive biological process expressed in behavioural, morphological, physiological, biochemical and cellular age-related changes. Age-associated alterations in activity are regularly found in insects when examining whole-organism senescence over the adult lifespan. In addition, overall stress resistance usually decreases with senescence. In the present study, we measured the critical thermal minimum (CTmin) and the subsequent recovery period over the lifespan of the sub-Antarctic wingless fly, Anatalanta aptera. Experiments were conducted on males and females in seven age groups: newly emerged, 1.5-, 5-, 7-, 13-, 15- and 18-month-old adults. Surprisingly, CTmin decreased significantly with ageing in A. aptera, from 23.8+0.58C just after the emergence to 25.6+0.78C in the 18-month-old flies. The subsequent recovery period remained similar between the seven groups tested. Our unexpected results contradict the previous data collected in other insects. We have demonstrated for the first time that ageing may improve rather than impair locomotor activity during unfavourable thermal conditions. It raises questions and challenges the literature dealing with ageing. These fascinating results also question the underpinning mechanisms involved in the improvement of the thermal performance with ageing in A. aptera. Article in Journal/Newspaper Antarc* Antarctic Institut national des sciences de l'Univers: HAL-INSU Antarctic Biology Letters 6 3 346 349 |
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Open Polar |
collection |
Institut national des sciences de l'Univers: HAL-INSU |
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ftinsu |
language |
English |
topic |
senescence CTmin locomotor activity fly chill-coma recovery [SDE.BE]Environmental Sciences/Biodiversity and Ecology |
spellingShingle |
senescence CTmin locomotor activity fly chill-coma recovery [SDE.BE]Environmental Sciences/Biodiversity and Ecology Lalouette, Lisa Vernon, Philippe Amat, Hervé Renault, David Ageing and thermal performance in the sub-Antarctic wingless fly Anatalanta aptera (Diptera: Sphaeroceridae): older is better |
topic_facet |
senescence CTmin locomotor activity fly chill-coma recovery [SDE.BE]Environmental Sciences/Biodiversity and Ecology |
description |
International audience Senescence is a progressive biological process expressed in behavioural, morphological, physiological, biochemical and cellular age-related changes. Age-associated alterations in activity are regularly found in insects when examining whole-organism senescence over the adult lifespan. In addition, overall stress resistance usually decreases with senescence. In the present study, we measured the critical thermal minimum (CTmin) and the subsequent recovery period over the lifespan of the sub-Antarctic wingless fly, Anatalanta aptera. Experiments were conducted on males and females in seven age groups: newly emerged, 1.5-, 5-, 7-, 13-, 15- and 18-month-old adults. Surprisingly, CTmin decreased significantly with ageing in A. aptera, from 23.8+0.58C just after the emergence to 25.6+0.78C in the 18-month-old flies. The subsequent recovery period remained similar between the seven groups tested. Our unexpected results contradict the previous data collected in other insects. We have demonstrated for the first time that ageing may improve rather than impair locomotor activity during unfavourable thermal conditions. It raises questions and challenges the literature dealing with ageing. These fascinating results also question the underpinning mechanisms involved in the improvement of the thermal performance with ageing in A. aptera. |
author2 |
Ecosystèmes, biodiversité, évolution Rennes (ECOBIO) Université de Rennes (UR)-Institut Ecologie et Environnement - CNRS Ecologie et Environnement (INEE-CNRS) Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS)-Observatoire des Sciences de l'Univers de Rennes (OSUR) Université de Rennes (UR)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Rennes 2 (UR2)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Rennes 2 (UR2)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Centre National de la Recherche Scientifique (CNRS) |
format |
Article in Journal/Newspaper |
author |
Lalouette, Lisa Vernon, Philippe Amat, Hervé Renault, David |
author_facet |
Lalouette, Lisa Vernon, Philippe Amat, Hervé Renault, David |
author_sort |
Lalouette, Lisa |
title |
Ageing and thermal performance in the sub-Antarctic wingless fly Anatalanta aptera (Diptera: Sphaeroceridae): older is better |
title_short |
Ageing and thermal performance in the sub-Antarctic wingless fly Anatalanta aptera (Diptera: Sphaeroceridae): older is better |
title_full |
Ageing and thermal performance in the sub-Antarctic wingless fly Anatalanta aptera (Diptera: Sphaeroceridae): older is better |
title_fullStr |
Ageing and thermal performance in the sub-Antarctic wingless fly Anatalanta aptera (Diptera: Sphaeroceridae): older is better |
title_full_unstemmed |
Ageing and thermal performance in the sub-Antarctic wingless fly Anatalanta aptera (Diptera: Sphaeroceridae): older is better |
title_sort |
ageing and thermal performance in the sub-antarctic wingless fly anatalanta aptera (diptera: sphaeroceridae): older is better |
publisher |
HAL CCSD |
publishDate |
2010 |
url |
https://hal.science/hal-00496128 https://doi.org/10.1098/rsbl.2009.0873 |
geographic |
Antarctic |
geographic_facet |
Antarctic |
genre |
Antarc* Antarctic |
genre_facet |
Antarc* Antarctic |
op_source |
ISSN: 1744-9561 Biology Letters https://hal.science/hal-00496128 Biology Letters, 2010, 6, pp.346-349. ⟨10.1098/rsbl.2009.0873⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1098/rsbl.2009.0873 hal-00496128 https://hal.science/hal-00496128 doi:10.1098/rsbl.2009.0873 PUBMEDCENTRAL: PMC2880048 |
op_doi |
https://doi.org/10.1098/rsbl.2009.0873 |
container_title |
Biology Letters |
container_volume |
6 |
container_issue |
3 |
container_start_page |
346 |
op_container_end_page |
349 |
_version_ |
1790599432071282688 |