Functional Niche Partitioning Occurs over Body Size but Not Nutrient Reserves nor Melanism in a Polar Carabid Beetle along an Altitudinal Gradient
Phenotypic plasticity can favor the emergence of different morphotypes specialized in specific ranges of environmental conditions. The existence of intraspecific partitioning confers resilience at the species scale and can ultimately determine species survival in a context of global changes. Amblyst...
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ftunivlilleoa:oai:lilloa.univ-lille.fr:20.500.12210/80109 2023-06-11T04:04:22+02:00 Functional Niche Partitioning Occurs over Body Size but Not Nutrient Reserves nor Melanism in a Polar Carabid Beetle along an Altitudinal Gradient Espel, Diane Coux, Camille Pertierra, Luis R Eymar-Dauphin, Pauline Lembrechts, Jonas J. Renault, D Ecosystèmes, biodiversité, évolution Rennes ECOBIO Centre d’Infection et d’Immunité de Lille - INSERM U 1019 - UMR 9017 - UMR 8204 CIIL Centre d’Ecologie Fonctionnelle et Evolutive CEFE University of Pretoria South Africa Équipe 1 - Biodiversité et Adaptation dans les Hydrosystèmes BAH University of Antwerp UA 2023-01-25 application/octet-stream https://hdl.handle.net/20.500.12210/80109 Anglais eng MDPI 10.3390/insects14020123 36835692 ASsessing and mitigating the effects of climate change and biological Invasions on the spatial redistribution of biodiversity in Cold environmentS INSECTS http://hdl.handle.net/20.500.12210/80109 info:eu-repo/semantics/openAccess Amblystogenium pacificum;Carabidae;French sub-Antarctic islands;dimorphism;functional diversity;melanism;thermal tolerance Article dans une revue scientifique 2023 ftunivlilleoa https://doi.org/20.500.12210/80109 2023-05-10T16:11:49Z Phenotypic plasticity can favor the emergence of different morphotypes specialized in specific ranges of environmental conditions. The existence of intraspecific partitioning confers resilience at the species scale and can ultimately determine species survival in a context of global changes. Amblystogenium pacificum is a carabid beetle endemic to the sub-Antarctic Crozet Islands, and it has two distinctive morphotypes based on body coloration. For this study, A. pacificum specimens of functional niches were sampled along an altitudinal gradient (as a proxy for temperature), and some morphological and biochemical traits were measured. We used an FAMD multivariate analysis and linear mixed-effects models to test whether these traits were related to morphotype, altitude, and sexual dimorphism. We then calculated and compared the functional niches at different altitudes and tested for niche partitioning through a hypervolume approach. We found a positive hump-shaped correlation between altitude and body size as well as higher protein and sugar reserves in females than in males. Our functional hypervolume results suggest that the main driver of niche partitioning along the altitudinal gradient is body size rather than morphotype or sex, even though darker morphotypes tended to be more functionally constrained at higher altitudes and females showed limited trait variations at the highest altitude. 14 2 Article in Journal/Newspaper Antarc* Antarctic Crozet Islands LillOA (Lille Open Archive - Université de Lille) Antarctic |
institution |
Open Polar |
collection |
LillOA (Lille Open Archive - Université de Lille) |
op_collection_id |
ftunivlilleoa |
language |
English |
topic |
Amblystogenium pacificum;Carabidae;French sub-Antarctic islands;dimorphism;functional diversity;melanism;thermal tolerance |
spellingShingle |
Amblystogenium pacificum;Carabidae;French sub-Antarctic islands;dimorphism;functional diversity;melanism;thermal tolerance Espel, Diane Coux, Camille Pertierra, Luis R Eymar-Dauphin, Pauline Lembrechts, Jonas J. Renault, D Functional Niche Partitioning Occurs over Body Size but Not Nutrient Reserves nor Melanism in a Polar Carabid Beetle along an Altitudinal Gradient |
topic_facet |
Amblystogenium pacificum;Carabidae;French sub-Antarctic islands;dimorphism;functional diversity;melanism;thermal tolerance |
description |
Phenotypic plasticity can favor the emergence of different morphotypes specialized in specific ranges of environmental conditions. The existence of intraspecific partitioning confers resilience at the species scale and can ultimately determine species survival in a context of global changes. Amblystogenium pacificum is a carabid beetle endemic to the sub-Antarctic Crozet Islands, and it has two distinctive morphotypes based on body coloration. For this study, A. pacificum specimens of functional niches were sampled along an altitudinal gradient (as a proxy for temperature), and some morphological and biochemical traits were measured. We used an FAMD multivariate analysis and linear mixed-effects models to test whether these traits were related to morphotype, altitude, and sexual dimorphism. We then calculated and compared the functional niches at different altitudes and tested for niche partitioning through a hypervolume approach. We found a positive hump-shaped correlation between altitude and body size as well as higher protein and sugar reserves in females than in males. Our functional hypervolume results suggest that the main driver of niche partitioning along the altitudinal gradient is body size rather than morphotype or sex, even though darker morphotypes tended to be more functionally constrained at higher altitudes and females showed limited trait variations at the highest altitude. 14 2 |
author2 |
Ecosystèmes, biodiversité, évolution Rennes ECOBIO Centre d’Infection et d’Immunité de Lille - INSERM U 1019 - UMR 9017 - UMR 8204 CIIL Centre d’Ecologie Fonctionnelle et Evolutive CEFE University of Pretoria South Africa Équipe 1 - Biodiversité et Adaptation dans les Hydrosystèmes BAH University of Antwerp UA |
format |
Article in Journal/Newspaper |
author |
Espel, Diane Coux, Camille Pertierra, Luis R Eymar-Dauphin, Pauline Lembrechts, Jonas J. Renault, D |
author_facet |
Espel, Diane Coux, Camille Pertierra, Luis R Eymar-Dauphin, Pauline Lembrechts, Jonas J. Renault, D |
author_sort |
Espel, Diane |
title |
Functional Niche Partitioning Occurs over Body Size but Not Nutrient Reserves nor Melanism in a Polar Carabid Beetle along an Altitudinal Gradient |
title_short |
Functional Niche Partitioning Occurs over Body Size but Not Nutrient Reserves nor Melanism in a Polar Carabid Beetle along an Altitudinal Gradient |
title_full |
Functional Niche Partitioning Occurs over Body Size but Not Nutrient Reserves nor Melanism in a Polar Carabid Beetle along an Altitudinal Gradient |
title_fullStr |
Functional Niche Partitioning Occurs over Body Size but Not Nutrient Reserves nor Melanism in a Polar Carabid Beetle along an Altitudinal Gradient |
title_full_unstemmed |
Functional Niche Partitioning Occurs over Body Size but Not Nutrient Reserves nor Melanism in a Polar Carabid Beetle along an Altitudinal Gradient |
title_sort |
functional niche partitioning occurs over body size but not nutrient reserves nor melanism in a polar carabid beetle along an altitudinal gradient |
publisher |
MDPI |
publishDate |
2023 |
url |
https://hdl.handle.net/20.500.12210/80109 |
geographic |
Antarctic |
geographic_facet |
Antarctic |
genre |
Antarc* Antarctic Crozet Islands |
genre_facet |
Antarc* Antarctic Crozet Islands |
op_relation |
10.3390/insects14020123 36835692 ASsessing and mitigating the effects of climate change and biological Invasions on the spatial redistribution of biodiversity in Cold environmentS INSECTS http://hdl.handle.net/20.500.12210/80109 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/20.500.12210/80109 |
_version_ |
1768387321628983296 |