Variation of morphometric traits in populations of an invasive carabid predator (Merizodus soledadinus) within a sub-Antarctic island
International audience Invasive predators may change their own trophic conditions by progressively displacing or reducing diversity and abundance of native prey. As food quality and quantity are two main factors determining adult body size in arthropods, alteration of the available resources may thu...
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Online Access: | https://hal.archives-ouvertes.fr/hal-00553153 https://doi.org/10.1007/s10530-010-9739-2 |
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ftccsdartic:oai:HAL:hal-00553153v1 2023-05-15T14:00:54+02:00 Variation of morphometric traits in populations of an invasive carabid predator (Merizodus soledadinus) within a sub-Antarctic island Laparie, Mathieu Lebouvier, Marc Lalouette, Lisa 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) IPEV Programme 136 CNRS ZA EAS ANR-07-VULN-0004,EVINCE,Vulnerability of native communities to invasive insects and climate change in sub-antarctic islands.(2007) 2010 https://hal.archives-ouvertes.fr/hal-00553153 https://doi.org/10.1007/s10530-010-9739-2 en eng HAL CCSD Springer Verlag info:eu-repo/semantics/altIdentifier/doi/10.1007/s10530-010-9739-2 hal-00553153 https://hal.archives-ouvertes.fr/hal-00553153 doi:10.1007/s10530-010-9739-2 ISSN: 1387-3547 EISSN: 1573-1464 Biological Invasions https://hal.archives-ouvertes.fr/hal-00553153 Biological Invasions, Springer Verlag, 2010, 12 (10), pp.3405-3417. ⟨10.1007/s10530-010-9739-2⟩ Trophic resources Phenotypic plasticity Morphometrics Body size Biological invasion Insect Predator Gender Sub-Antarctic islands [SDE.BE]Environmental Sciences/Biodiversity and Ecology info:eu-repo/semantics/article Journal articles 2010 ftccsdartic https://doi.org/10.1007/s10530-010-9739-2 2021-10-24T18:13:11Z International audience Invasive predators may change their own trophic conditions by progressively displacing or reducing diversity and abundance of native prey. As food quality and quantity are two main factors determining adult body size in arthropods, alteration of the available resources may thus affect predators' morphology. The flightless carabid beetle Merizodus soledadinus was accidentally introduced to Iles Kerguelen in a single site in 1913. Its successful spreading process has been monitored over the long term, providing an exceptional research opportunity with multiple snapshots of similar colonized sites mostly differing by the residence time of M. soledadinus. To test if M. soledadinus' morphology is correlated with its residence time in each habitat, we measured nine morphometric traits in five populations. We detected significant morphological differences: individuals from the first colonized site were the smallest, whereas individuals from the most recently colonized site were the largest. Our study also highlighted among-site variation in sexual dimorphism of the last abdominal sternite: its length differed between sites for females, but not for males. We discuss this diminution of M. soledadinus' size in the light of both a priori (development under diet restriction, survival) and a posteriori (intrapopulation competition, cannibalism) effects on growth and development. Article in Journal/Newspaper Antarc* Antarctic Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) Antarctic Kerguelen Biological Invasions 12 10 3405 3417 |
institution |
Open Polar |
collection |
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) |
op_collection_id |
ftccsdartic |
language |
English |
topic |
Trophic resources Phenotypic plasticity Morphometrics Body size Biological invasion Insect Predator Gender Sub-Antarctic islands [SDE.BE]Environmental Sciences/Biodiversity and Ecology |
spellingShingle |
Trophic resources Phenotypic plasticity Morphometrics Body size Biological invasion Insect Predator Gender Sub-Antarctic islands [SDE.BE]Environmental Sciences/Biodiversity and Ecology Laparie, Mathieu Lebouvier, Marc Lalouette, Lisa Renault, David Variation of morphometric traits in populations of an invasive carabid predator (Merizodus soledadinus) within a sub-Antarctic island |
topic_facet |
Trophic resources Phenotypic plasticity Morphometrics Body size Biological invasion Insect Predator Gender Sub-Antarctic islands [SDE.BE]Environmental Sciences/Biodiversity and Ecology |
description |
International audience Invasive predators may change their own trophic conditions by progressively displacing or reducing diversity and abundance of native prey. As food quality and quantity are two main factors determining adult body size in arthropods, alteration of the available resources may thus affect predators' morphology. The flightless carabid beetle Merizodus soledadinus was accidentally introduced to Iles Kerguelen in a single site in 1913. Its successful spreading process has been monitored over the long term, providing an exceptional research opportunity with multiple snapshots of similar colonized sites mostly differing by the residence time of M. soledadinus. To test if M. soledadinus' morphology is correlated with its residence time in each habitat, we measured nine morphometric traits in five populations. We detected significant morphological differences: individuals from the first colonized site were the smallest, whereas individuals from the most recently colonized site were the largest. Our study also highlighted among-site variation in sexual dimorphism of the last abdominal sternite: its length differed between sites for females, but not for males. We discuss this diminution of M. soledadinus' size in the light of both a priori (development under diet restriction, survival) and a posteriori (intrapopulation competition, cannibalism) effects on growth and development. |
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) IPEV Programme 136 CNRS ZA EAS ANR-07-VULN-0004,EVINCE,Vulnerability of native communities to invasive insects and climate change in sub-antarctic islands.(2007) |
format |
Article in Journal/Newspaper |
author |
Laparie, Mathieu Lebouvier, Marc Lalouette, Lisa Renault, David |
author_facet |
Laparie, Mathieu Lebouvier, Marc Lalouette, Lisa Renault, David |
author_sort |
Laparie, Mathieu |
title |
Variation of morphometric traits in populations of an invasive carabid predator (Merizodus soledadinus) within a sub-Antarctic island |
title_short |
Variation of morphometric traits in populations of an invasive carabid predator (Merizodus soledadinus) within a sub-Antarctic island |
title_full |
Variation of morphometric traits in populations of an invasive carabid predator (Merizodus soledadinus) within a sub-Antarctic island |
title_fullStr |
Variation of morphometric traits in populations of an invasive carabid predator (Merizodus soledadinus) within a sub-Antarctic island |
title_full_unstemmed |
Variation of morphometric traits in populations of an invasive carabid predator (Merizodus soledadinus) within a sub-Antarctic island |
title_sort |
variation of morphometric traits in populations of an invasive carabid predator (merizodus soledadinus) within a sub-antarctic island |
publisher |
HAL CCSD |
publishDate |
2010 |
url |
https://hal.archives-ouvertes.fr/hal-00553153 https://doi.org/10.1007/s10530-010-9739-2 |
geographic |
Antarctic Kerguelen |
geographic_facet |
Antarctic Kerguelen |
genre |
Antarc* Antarctic |
genre_facet |
Antarc* Antarctic |
op_source |
ISSN: 1387-3547 EISSN: 1573-1464 Biological Invasions https://hal.archives-ouvertes.fr/hal-00553153 Biological Invasions, Springer Verlag, 2010, 12 (10), pp.3405-3417. ⟨10.1007/s10530-010-9739-2⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1007/s10530-010-9739-2 hal-00553153 https://hal.archives-ouvertes.fr/hal-00553153 doi:10.1007/s10530-010-9739-2 |
op_doi |
https://doi.org/10.1007/s10530-010-9739-2 |
container_title |
Biological Invasions |
container_volume |
12 |
container_issue |
10 |
container_start_page |
3405 |
op_container_end_page |
3417 |
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1766270293379121152 |