New insights into the ecology of Merizodus soledadinus, a predatory carabid beetle invading the sub-Antarctic Kerguelen Islands
International audience Our knowledge of the main determinants of invasion success is still incomplete. Among these factors, the effects of biological traits, including fecundity, longevity and dispersal in newly colonised regions, are pivotal. However, while numerous studies have considered ecologic...
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Online Access: | https://univ-rennes.hal.science/hal-01654276 https://doi.org/10.1007/s00300-017-2134-z |
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ftunivrennes1hal:oai:HAL:hal-01654276v1 2024-05-12T07:56:24+00:00 New insights into the ecology of Merizodus soledadinus, a predatory carabid beetle invading the sub-Antarctic Kerguelen Islands Ouisse, T. Laparie, M. Lebouvier, M. Renault, D 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) Unité de recherche Zoologie Forestière (URZF) Institut National de la Recherche Agronomique (INRA) The French Polar Institute Paul-Emile Victor that supports our program IPEV 136 ‘SUBANTECO’ is warmly thanked.This study was granted by InEE-CNRS (Enviromics call, ‘ALIENS’; Zone Atelier Antarctique et Subantarctique) 2017-11 https://univ-rennes.hal.science/hal-01654276 https://doi.org/10.1007/s00300-017-2134-z en eng HAL CCSD Springer Verlag info:eu-repo/semantics/altIdentifier/doi/10.1007/s00300-017-2134-z hal-01654276 https://univ-rennes.hal.science/hal-01654276 doi:10.1007/s00300-017-2134-z PRODINRA: 415653 WOS: 000415258700006 ISSN: 0722-4060 EISSN: 1432-2056 Polar Biology https://univ-rennes.hal.science/hal-01654276 Polar Biology, 2017, 40 (11), pp.2201-2209. ⟨10.1007/s00300-017-2134-z⟩ https://link.springer.com/journal/300/40/11/page/1 Biological invasion Body reserves Egg load Longevity Seasonal activity In [SDE.BE]Environmental Sciences/Biodiversity and Ecology info:eu-repo/semantics/article Journal articles 2017 ftunivrennes1hal https://doi.org/10.1007/s00300-017-2134-z 2024-04-18T00:23:50Z International audience Our knowledge of the main determinants of invasion success is still incomplete. Among these factors, the effects of biological traits, including fecundity, longevity and dispersal in newly colonised regions, are pivotal. However, while numerous studies have considered ecological and evolutionary impacts of non-native species, their biology often remains understudied. Despite the continuous geographic expansion of Merizodus soledadinus (Coleoptera: Carabidae) at the Kerguelen Islands over recent decades, the main life-history parameters of this species are unknown. We determined adult longevity under controlled conditions, monitored seasonal activity through pitfall trappings, and analysed temporal variations of egg load and body reserves in field-collected individuals. Themedian adult life span (LT50) was 241 days, with maximum longevity of 710 days (N = 500). Females carriedeggs throughout the year (8.94 ± 3.56 eggs per female), and it was not possible to pinpoint any clear egg-layingperiod. Year-round trappings demonstrated continuous activity of adults over seasons, with a peak during the austral summer that may arguably be associated with higher temperatures. Body stores (glycogen and proteins) did not vary significantly through the year, suggesting that adults feed continuously despite different prey availability between summer and winter, possibly via diet shifts. The amount of triglycerides increased at onset of summer, which may be associated with higher summer locomotor activity and/or more intense predation and reproduction. Article in Journal/Newspaper Antarc* Antarctic Kerguelen Islands Polar Biology Université de Rennes 1: Publications scientifiques (HAL) Antarctic Austral Kerguelen Kerguelen Islands Polar Biology 40 11 2201 2209 |
institution |
Open Polar |
collection |
Université de Rennes 1: Publications scientifiques (HAL) |
op_collection_id |
ftunivrennes1hal |
language |
English |
topic |
Biological invasion Body reserves Egg load Longevity Seasonal activity In [SDE.BE]Environmental Sciences/Biodiversity and Ecology |
spellingShingle |
Biological invasion Body reserves Egg load Longevity Seasonal activity In [SDE.BE]Environmental Sciences/Biodiversity and Ecology Ouisse, T. Laparie, M. Lebouvier, M. Renault, D New insights into the ecology of Merizodus soledadinus, a predatory carabid beetle invading the sub-Antarctic Kerguelen Islands |
topic_facet |
Biological invasion Body reserves Egg load Longevity Seasonal activity In [SDE.BE]Environmental Sciences/Biodiversity and Ecology |
description |
International audience Our knowledge of the main determinants of invasion success is still incomplete. Among these factors, the effects of biological traits, including fecundity, longevity and dispersal in newly colonised regions, are pivotal. However, while numerous studies have considered ecological and evolutionary impacts of non-native species, their biology often remains understudied. Despite the continuous geographic expansion of Merizodus soledadinus (Coleoptera: Carabidae) at the Kerguelen Islands over recent decades, the main life-history parameters of this species are unknown. We determined adult longevity under controlled conditions, monitored seasonal activity through pitfall trappings, and analysed temporal variations of egg load and body reserves in field-collected individuals. Themedian adult life span (LT50) was 241 days, with maximum longevity of 710 days (N = 500). Females carriedeggs throughout the year (8.94 ± 3.56 eggs per female), and it was not possible to pinpoint any clear egg-layingperiod. Year-round trappings demonstrated continuous activity of adults over seasons, with a peak during the austral summer that may arguably be associated with higher temperatures. Body stores (glycogen and proteins) did not vary significantly through the year, suggesting that adults feed continuously despite different prey availability between summer and winter, possibly via diet shifts. The amount of triglycerides increased at onset of summer, which may be associated with higher summer locomotor activity and/or more intense predation and reproduction. |
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) Unité de recherche Zoologie Forestière (URZF) Institut National de la Recherche Agronomique (INRA) The French Polar Institute Paul-Emile Victor that supports our program IPEV 136 ‘SUBANTECO’ is warmly thanked.This study was granted by InEE-CNRS (Enviromics call, ‘ALIENS’; Zone Atelier Antarctique et Subantarctique) |
format |
Article in Journal/Newspaper |
author |
Ouisse, T. Laparie, M. Lebouvier, M. Renault, D |
author_facet |
Ouisse, T. Laparie, M. Lebouvier, M. Renault, D |
author_sort |
Ouisse, T. |
title |
New insights into the ecology of Merizodus soledadinus, a predatory carabid beetle invading the sub-Antarctic Kerguelen Islands |
title_short |
New insights into the ecology of Merizodus soledadinus, a predatory carabid beetle invading the sub-Antarctic Kerguelen Islands |
title_full |
New insights into the ecology of Merizodus soledadinus, a predatory carabid beetle invading the sub-Antarctic Kerguelen Islands |
title_fullStr |
New insights into the ecology of Merizodus soledadinus, a predatory carabid beetle invading the sub-Antarctic Kerguelen Islands |
title_full_unstemmed |
New insights into the ecology of Merizodus soledadinus, a predatory carabid beetle invading the sub-Antarctic Kerguelen Islands |
title_sort |
new insights into the ecology of merizodus soledadinus, a predatory carabid beetle invading the sub-antarctic kerguelen islands |
publisher |
HAL CCSD |
publishDate |
2017 |
url |
https://univ-rennes.hal.science/hal-01654276 https://doi.org/10.1007/s00300-017-2134-z |
geographic |
Antarctic Austral Kerguelen Kerguelen Islands |
geographic_facet |
Antarctic Austral Kerguelen Kerguelen Islands |
genre |
Antarc* Antarctic Kerguelen Islands Polar Biology |
genre_facet |
Antarc* Antarctic Kerguelen Islands Polar Biology |
op_source |
ISSN: 0722-4060 EISSN: 1432-2056 Polar Biology https://univ-rennes.hal.science/hal-01654276 Polar Biology, 2017, 40 (11), pp.2201-2209. ⟨10.1007/s00300-017-2134-z⟩ https://link.springer.com/journal/300/40/11/page/1 |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1007/s00300-017-2134-z hal-01654276 https://univ-rennes.hal.science/hal-01654276 doi:10.1007/s00300-017-2134-z PRODINRA: 415653 WOS: 000415258700006 |
op_doi |
https://doi.org/10.1007/s00300-017-2134-z |
container_title |
Polar Biology |
container_volume |
40 |
container_issue |
11 |
container_start_page |
2201 |
op_container_end_page |
2209 |
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1798836462834155520 |