Starvation resistance and effects of diet on energy reserves in a predatory ground beetle (Merizodus soledadinus; Carabidae) invading the Kerguelen Islands
International audience The relationship between nutritional requirements and the availability or quality of food is a prime parameter in determining the geographical expansion of invasive insects. At the sub-Antarctic Kerguelen Islands, the invasive ground beetle Merizodus soledadinus becomes the ma...
Published in: | Comparative Biochemistry and Physiology Part A: Molecular & Integrative Physiology |
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Online Access: | https://hal.archives-ouvertes.fr/hal-00677499 https://doi.org/10.1016/j.cbpa.2011.09.011 |
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ftccsdartic:oai:HAL:hal-00677499v1 2023-05-15T13:34:41+02:00 Starvation resistance and effects of diet on energy reserves in a predatory ground beetle (Merizodus soledadinus; Carabidae) invading the Kerguelen Islands Laparie, Mathieu Larvor, Vanessa Frenot, Yves 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) Programme 136 IPEV ANR-07-VULN-0004,EVINCE,Vulnerability of native communities to invasive insects and climate change in sub-antarctic islands.(2007) 2012 https://hal.archives-ouvertes.fr/hal-00677499 https://doi.org/10.1016/j.cbpa.2011.09.011 en eng HAL CCSD Elsevier info:eu-repo/semantics/altIdentifier/doi/10.1016/j.cbpa.2011.09.011 hal-00677499 https://hal.archives-ouvertes.fr/hal-00677499 doi:10.1016/j.cbpa.2011.09.011 ISSN: 1095-6433 Comparative Biochemistry and Physiology - Part A: Molecular and Integrative Physiology https://hal.archives-ouvertes.fr/hal-00677499 Comparative Biochemistry and Physiology - Part A: Molecular and Integrative Physiology, Elsevier, 2012, 161 (2), pp.122-129. ⟨10.1016/j.cbpa.2011.09.011⟩ Invasive insect Glucose Metabolic stores Prey selection Sub-Antarctic island Trehalose Triglyceride Trophic stress [SDE.BE]Environmental Sciences/Biodiversity and Ecology info:eu-repo/semantics/article Journal articles 2012 ftccsdartic https://doi.org/10.1016/j.cbpa.2011.09.011 2021-10-24T16:43:29Z International audience The relationship between nutritional requirements and the availability or quality of food is a prime parameter in determining the geographical expansion of invasive insects. At the sub-Antarctic Kerguelen Islands, the invasive ground beetle Merizodus soledadinus becomes the main invertebrate predator when it colonizes new habitats, leading to the local extinction of native fly species. Such changes in the structure of prey communities may alter the energy management (storage and expenditure) of this predator. In this species, we monitored survival and bodymass during food deprivation, in addition to evaluating the effects of two distinct diets (maggots versus enchytraeids) on the consumption and restoration of body reserves (sugars and triglycerides). We found that adults can starve formore than 60 days, and feed every 3.76 days on average when food is available. We recorded higher predation rates on maggots, associated with steeper body mass variations, compared to enchytraeids. Sugars and triglycerides were significantly consumed during food deprivation and restored after refeeding, but varied similarly among individuals supplied on the distinct diets. Other parameters may determine the food preferences observed, such as salt content in prey tissues, because M. soledadinus mainly feeds in hypersaline foreshore habitats, and may limit the consumption of osmotic conformers. Article in Journal/Newspaper Antarc* Antarctic Kerguelen Islands Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) Antarctic Kerguelen Kerguelen Islands Comparative Biochemistry and Physiology Part A: Molecular & Integrative Physiology 161 2 122 129 |
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 |
Invasive insect Glucose Metabolic stores Prey selection Sub-Antarctic island Trehalose Triglyceride Trophic stress [SDE.BE]Environmental Sciences/Biodiversity and Ecology |
spellingShingle |
Invasive insect Glucose Metabolic stores Prey selection Sub-Antarctic island Trehalose Triglyceride Trophic stress [SDE.BE]Environmental Sciences/Biodiversity and Ecology Laparie, Mathieu Larvor, Vanessa Frenot, Yves Renault, David Starvation resistance and effects of diet on energy reserves in a predatory ground beetle (Merizodus soledadinus; Carabidae) invading the Kerguelen Islands |
topic_facet |
Invasive insect Glucose Metabolic stores Prey selection Sub-Antarctic island Trehalose Triglyceride Trophic stress [SDE.BE]Environmental Sciences/Biodiversity and Ecology |
description |
International audience The relationship between nutritional requirements and the availability or quality of food is a prime parameter in determining the geographical expansion of invasive insects. At the sub-Antarctic Kerguelen Islands, the invasive ground beetle Merizodus soledadinus becomes the main invertebrate predator when it colonizes new habitats, leading to the local extinction of native fly species. Such changes in the structure of prey communities may alter the energy management (storage and expenditure) of this predator. In this species, we monitored survival and bodymass during food deprivation, in addition to evaluating the effects of two distinct diets (maggots versus enchytraeids) on the consumption and restoration of body reserves (sugars and triglycerides). We found that adults can starve formore than 60 days, and feed every 3.76 days on average when food is available. We recorded higher predation rates on maggots, associated with steeper body mass variations, compared to enchytraeids. Sugars and triglycerides were significantly consumed during food deprivation and restored after refeeding, but varied similarly among individuals supplied on the distinct diets. Other parameters may determine the food preferences observed, such as salt content in prey tissues, because M. soledadinus mainly feeds in hypersaline foreshore habitats, and may limit the consumption of osmotic conformers. |
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) Programme 136 IPEV 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 Larvor, Vanessa Frenot, Yves Renault, David |
author_facet |
Laparie, Mathieu Larvor, Vanessa Frenot, Yves Renault, David |
author_sort |
Laparie, Mathieu |
title |
Starvation resistance and effects of diet on energy reserves in a predatory ground beetle (Merizodus soledadinus; Carabidae) invading the Kerguelen Islands |
title_short |
Starvation resistance and effects of diet on energy reserves in a predatory ground beetle (Merizodus soledadinus; Carabidae) invading the Kerguelen Islands |
title_full |
Starvation resistance and effects of diet on energy reserves in a predatory ground beetle (Merizodus soledadinus; Carabidae) invading the Kerguelen Islands |
title_fullStr |
Starvation resistance and effects of diet on energy reserves in a predatory ground beetle (Merizodus soledadinus; Carabidae) invading the Kerguelen Islands |
title_full_unstemmed |
Starvation resistance and effects of diet on energy reserves in a predatory ground beetle (Merizodus soledadinus; Carabidae) invading the Kerguelen Islands |
title_sort |
starvation resistance and effects of diet on energy reserves in a predatory ground beetle (merizodus soledadinus; carabidae) invading the kerguelen islands |
publisher |
HAL CCSD |
publishDate |
2012 |
url |
https://hal.archives-ouvertes.fr/hal-00677499 https://doi.org/10.1016/j.cbpa.2011.09.011 |
geographic |
Antarctic Kerguelen Kerguelen Islands |
geographic_facet |
Antarctic Kerguelen Kerguelen Islands |
genre |
Antarc* Antarctic Kerguelen Islands |
genre_facet |
Antarc* Antarctic Kerguelen Islands |
op_source |
ISSN: 1095-6433 Comparative Biochemistry and Physiology - Part A: Molecular and Integrative Physiology https://hal.archives-ouvertes.fr/hal-00677499 Comparative Biochemistry and Physiology - Part A: Molecular and Integrative Physiology, Elsevier, 2012, 161 (2), pp.122-129. ⟨10.1016/j.cbpa.2011.09.011⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.cbpa.2011.09.011 hal-00677499 https://hal.archives-ouvertes.fr/hal-00677499 doi:10.1016/j.cbpa.2011.09.011 |
op_doi |
https://doi.org/10.1016/j.cbpa.2011.09.011 |
container_title |
Comparative Biochemistry and Physiology Part A: Molecular & Integrative Physiology |
container_volume |
161 |
container_issue |
2 |
container_start_page |
122 |
op_container_end_page |
129 |
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