The ecology and niche segregation of diving petrels
Exploring a species’ ecological niche entails investigating at multiple scales, as different environmental threats and niche constraints between intra-species levels may lead to important ecological and conservation consequences. However, the absence of precise information about small procellariifor...
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ftccsdartic:oai:HAL:tel-03959129v1 2023-05-15T18:25:55+02:00 The ecology and niche segregation of diving petrels L’écologie et la ségrégation de niche chez les pétrels plongeurs Fromant, Aymeric Université de La Rochelle Deakin university (Geelong, Australie) John Arnould Charles-André Bost 2022-03-28 https://theses.hal.science/tel-03959129 https://theses.hal.science/tel-03959129/document https://theses.hal.science/tel-03959129/file/2022FROMANT192148.pdf en eng HAL CCSD NNT: 2022LAROS017 tel-03959129 https://theses.hal.science/tel-03959129 https://theses.hal.science/tel-03959129/document https://theses.hal.science/tel-03959129/file/2022FROMANT192148.pdf info:eu-repo/semantics/OpenAccess https://theses.hal.science/tel-03959129 Agricultural sciences. Université de La Rochelle; Deakin university (Geelong, Australie), 2022. English. ⟨NNT : 2022LAROS017⟩ Foraging ecology Behavioural ecology Ecological niche Tracking Stable isotope analysis Procellariiforme Pelecanoides P. urinatrix P. georgicus Écologie alimentaire Écologie comportementale Niche écologique Analyse des isotope stables [SDV.SA]Life Sciences [q-bio]/Agricultural sciences [SDV.BA]Life Sciences [q-bio]/Animal biology info:eu-repo/semantics/doctoralThesis Theses 2022 ftccsdartic 2023-02-04T23:59:36Z Exploring a species’ ecological niche entails investigating at multiple scales, as different environmental threats and niche constraints between intra-species levels may lead to important ecological and conservation consequences. However, the absence of precise information about small procellariiform species ecology has greatly limited ecological niche modelling studies, directly impacting our ability to delineate proper conservation planning. Technological advancements in the miniaturisation of data loggers have made it possible to collect ecological data of such species. In the present study, a multi-tooled approach was used to investigate the ecological niche of the common and the South-Georgian diving petrels. The primary objectives were to: 1) describe their foraging ecology during the breeding and non-breeding periods, and investigate their inter-annual variations; 2) determine the ecological differences between populations throughout the Southern Ocean; and 3) study the variations in their foraging ecology throughout the entire annual-cycle in the context of niche segregation between two sibling species. The results demonstrated that diving petrels exhibit remarkable flying abilities despite their high wing loading, foraging over large areas during the breeding season, and migrating several thousands of kilometres from their colony during the post-breeding period. These analyses revealed important ecological differences throughout the species distribution, particularly in terms of phenology and migration area. Collecting data over several years substantially strengthens results and provides valuable information to understand the variations and the limits of diving petrel ecological niches. Finally, a stage-dependent and context-dependent niche segregation analysis demonstrated the importance of a multi-tooled approach to better describe and understand the co-existence of ecologically similar species. L'exploration de la niche écologique d'une espèce implique une analyse à plusieurs échelles, car ... Doctoral or Postdoctoral Thesis Southern Ocean Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) Southern Ocean Pétrels ENVELOPE(140.017,140.017,-66.667,-66.667) |
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 |
Foraging ecology Behavioural ecology Ecological niche Tracking Stable isotope analysis Procellariiforme Pelecanoides P. urinatrix P. georgicus Écologie alimentaire Écologie comportementale Niche écologique Analyse des isotope stables [SDV.SA]Life Sciences [q-bio]/Agricultural sciences [SDV.BA]Life Sciences [q-bio]/Animal biology |
spellingShingle |
Foraging ecology Behavioural ecology Ecological niche Tracking Stable isotope analysis Procellariiforme Pelecanoides P. urinatrix P. georgicus Écologie alimentaire Écologie comportementale Niche écologique Analyse des isotope stables [SDV.SA]Life Sciences [q-bio]/Agricultural sciences [SDV.BA]Life Sciences [q-bio]/Animal biology Fromant, Aymeric The ecology and niche segregation of diving petrels |
topic_facet |
Foraging ecology Behavioural ecology Ecological niche Tracking Stable isotope analysis Procellariiforme Pelecanoides P. urinatrix P. georgicus Écologie alimentaire Écologie comportementale Niche écologique Analyse des isotope stables [SDV.SA]Life Sciences [q-bio]/Agricultural sciences [SDV.BA]Life Sciences [q-bio]/Animal biology |
description |
Exploring a species’ ecological niche entails investigating at multiple scales, as different environmental threats and niche constraints between intra-species levels may lead to important ecological and conservation consequences. However, the absence of precise information about small procellariiform species ecology has greatly limited ecological niche modelling studies, directly impacting our ability to delineate proper conservation planning. Technological advancements in the miniaturisation of data loggers have made it possible to collect ecological data of such species. In the present study, a multi-tooled approach was used to investigate the ecological niche of the common and the South-Georgian diving petrels. The primary objectives were to: 1) describe their foraging ecology during the breeding and non-breeding periods, and investigate their inter-annual variations; 2) determine the ecological differences between populations throughout the Southern Ocean; and 3) study the variations in their foraging ecology throughout the entire annual-cycle in the context of niche segregation between two sibling species. The results demonstrated that diving petrels exhibit remarkable flying abilities despite their high wing loading, foraging over large areas during the breeding season, and migrating several thousands of kilometres from their colony during the post-breeding period. These analyses revealed important ecological differences throughout the species distribution, particularly in terms of phenology and migration area. Collecting data over several years substantially strengthens results and provides valuable information to understand the variations and the limits of diving petrel ecological niches. Finally, a stage-dependent and context-dependent niche segregation analysis demonstrated the importance of a multi-tooled approach to better describe and understand the co-existence of ecologically similar species. L'exploration de la niche écologique d'une espèce implique une analyse à plusieurs échelles, car ... |
author2 |
Université de La Rochelle Deakin university (Geelong, Australie) John Arnould Charles-André Bost |
format |
Doctoral or Postdoctoral Thesis |
author |
Fromant, Aymeric |
author_facet |
Fromant, Aymeric |
author_sort |
Fromant, Aymeric |
title |
The ecology and niche segregation of diving petrels |
title_short |
The ecology and niche segregation of diving petrels |
title_full |
The ecology and niche segregation of diving petrels |
title_fullStr |
The ecology and niche segregation of diving petrels |
title_full_unstemmed |
The ecology and niche segregation of diving petrels |
title_sort |
ecology and niche segregation of diving petrels |
publisher |
HAL CCSD |
publishDate |
2022 |
url |
https://theses.hal.science/tel-03959129 https://theses.hal.science/tel-03959129/document https://theses.hal.science/tel-03959129/file/2022FROMANT192148.pdf |
long_lat |
ENVELOPE(140.017,140.017,-66.667,-66.667) |
geographic |
Southern Ocean Pétrels |
geographic_facet |
Southern Ocean Pétrels |
genre |
Southern Ocean |
genre_facet |
Southern Ocean |
op_source |
https://theses.hal.science/tel-03959129 Agricultural sciences. Université de La Rochelle; Deakin university (Geelong, Australie), 2022. English. ⟨NNT : 2022LAROS017⟩ |
op_relation |
NNT: 2022LAROS017 tel-03959129 https://theses.hal.science/tel-03959129 https://theses.hal.science/tel-03959129/document https://theses.hal.science/tel-03959129/file/2022FROMANT192148.pdf |
op_rights |
info:eu-repo/semantics/OpenAccess |
_version_ |
1766207646338121728 |