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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fttriple:oai:gotriple.eu:10670/1.tgir8s 2023-05-15T13:39:23+02:00 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) Centre National de la Recherche Scientifique (CNRS)-Observatoire des Sciences de l'Univers de Rennes (OSUR)-Institut Ecologie et Environnement (INEE) Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université de Rennes 1 (UR1) Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES) 2010-01-01 https://doi.org/10.1098/rsbl.2009.0873 https://hal.archives-ouvertes.fr/hal-00496128 en eng HAL CCSD Royal Society, The hal-00496128 doi:10.1098/rsbl.2009.0873 10670/1.tgir8s https://hal.archives-ouvertes.fr/hal-00496128 undefined Hyper Article en Ligne - Sciences de l'Homme et de la Société ISSN: 1744-9561 Biology Letters Biology Letters, Royal Society, The, 2010, 6, pp.346-349. ⟨10.1098/rsbl.2009.0873⟩ senescence CTmin locomotor activity fly chill-coma recovery geo envir Journal Article https://vocabularies.coar-repositories.org/resource_types/c_6501/ 2010 fttriple https://doi.org/10.1098/rsbl.2009.0873 2023-01-22T17:06:03Z 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 Unknown Antarctic Biology Letters 6 3 346 349 |
institution |
Open Polar |
collection |
Unknown |
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fttriple |
language |
English |
topic |
senescence CTmin locomotor activity fly chill-coma recovery geo envir |
spellingShingle |
senescence CTmin locomotor activity fly chill-coma recovery geo envir 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 geo envir |
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) Centre National de la Recherche Scientifique (CNRS)-Observatoire des Sciences de l'Univers de Rennes (OSUR)-Institut Ecologie et Environnement (INEE) Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université de Rennes 1 (UR1) Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES) |
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://doi.org/10.1098/rsbl.2009.0873 https://hal.archives-ouvertes.fr/hal-00496128 |
geographic |
Antarctic |
geographic_facet |
Antarctic |
genre |
Antarc* Antarctic |
genre_facet |
Antarc* Antarctic |
op_source |
Hyper Article en Ligne - Sciences de l'Homme et de la Société ISSN: 1744-9561 Biology Letters Biology Letters, Royal Society, The, 2010, 6, pp.346-349. ⟨10.1098/rsbl.2009.0873⟩ |
op_relation |
hal-00496128 doi:10.1098/rsbl.2009.0873 10670/1.tgir8s https://hal.archives-ouvertes.fr/hal-00496128 |
op_rights |
undefined |
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_ |
1766117966617772032 |