Reproductive capacity of an endangered and recovering population of humpback whales in the Southern Hemisphere
International audience Estimating demographic parameters is essential to assessing the recovery potential of severely depleted populations of marine mammal species such as the baleen whales, which were decimated by commercial whaling of the past century. The Oceania humpback whale Megaptera novaeang...
Published in: | Marine Ecology Progress Series |
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Main Authors: | , , , , , |
Other Authors: | , , , , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
HAL CCSD
2020
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Subjects: | |
Online Access: | https://hal.science/hal-02924219 https://hal.science/hal-02924219/document https://hal.science/hal-02924219/file/Chero%20MEPS%202020.pdf https://doi.org/10.3354/meps13329 |
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ftunivnantes:oai:HAL:hal-02924219v1 |
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record_format |
openpolar |
institution |
Open Polar |
collection |
Université de Nantes: HAL-UNIV-NANTES |
op_collection_id |
ftunivnantes |
language |
English |
topic |
New Caledonia Pacific population Recovery Sexual maturity Calving interval Calving rate Humpback whales [SDE.BE]Environmental Sciences/Biodiversity and Ecology [SDV.BA.ZV]Life Sciences [q-bio]/Animal biology/Vertebrate Zoology |
spellingShingle |
New Caledonia Pacific population Recovery Sexual maturity Calving interval Calving rate Humpback whales [SDE.BE]Environmental Sciences/Biodiversity and Ecology [SDV.BA.ZV]Life Sciences [q-bio]/Animal biology/Vertebrate Zoology Chero, Guillaume Pradel, Roger Derville, Solène Bonneville, Claire Gimenez, Olivier Garrigue, Claire Reproductive capacity of an endangered and recovering population of humpback whales in the Southern Hemisphere |
topic_facet |
New Caledonia Pacific population Recovery Sexual maturity Calving interval Calving rate Humpback whales [SDE.BE]Environmental Sciences/Biodiversity and Ecology [SDV.BA.ZV]Life Sciences [q-bio]/Animal biology/Vertebrate Zoology |
description |
International audience Estimating demographic parameters is essential to assessing the recovery potential of severely depleted populations of marine mammal species such as the baleen whales, which were decimated by commercial whaling of the past century. The Oceania humpback whale Megaptera novaeangliae population is classified as endangered by the IUCN because of low numbers and a slow recovery rate. Nevertheless, an anomalously strong increase has recently been detected in the New Caledonia breeding population. To determine the drivers of population growth, reproductive parameters were estimated for the first time for a humpback whale population of Oceania. Based on an extensive monitoring program (1995-2018), recapture histories were reconstructed for 607 females and incorporated in multi-event capture-recapture models. As the females’ ages were generally unknown (87%), 2 models with contrasting age scenarios were investigated. For females of unknown age, the mature scenario assumed maturity at the first encounter, while the immature scenario assumed immaturity within 7 yr after the first encounter, unless the female was encountered breeding. These models respectively resulted in a calving interval of 1.49 yr (95% CI: 1.21-2.08) or 2.83 yr (95% CI: 2.28-3.56) and a calving rate of 0.67 or 0.35. The relatively high calving rate modelled by the mature model is consistent with high pregnancy rates recently observed in the migratory corridors of the Kermadec Islands and on the feeding grounds of the Antarctic Peninsula. Therefore, our results suggest that the recovery of the New Caledonia humpback whale population from past exploitation may be partially driven by an increased reproductive capacity. |
author2 |
Ecologie marine tropicale des océans Pacifique et Indien (ENTROPIE Nouvelle-Calédonie ) Institut de Recherche pour le Développement (IRD Nouvelle-Calédonie )-Ifremer - Nouvelle-Calédonie Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER)-Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER)-Université de la Nouvelle-Calédonie (UNC) Centre d’Ecologie Fonctionnelle et Evolutive (CEFE) Université Paul-Valéry - Montpellier 3 (UPVM)-École pratique des hautes études (EPHE) Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD France-Sud )-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Institut Agro - Montpellier SupAgro Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro) Leibniz Institute for Zoo and Wildlife Research (IZW) Leibniz Association Kélonia - Observatoire des tortues marines Laboratoire d'Astrophysique de Marseille (LAM) Aix Marseille Université (AMU)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales Toulouse (CNES)-Centre National de la Recherche Scientifique (CNRS) |
format |
Article in Journal/Newspaper |
author |
Chero, Guillaume Pradel, Roger Derville, Solène Bonneville, Claire Gimenez, Olivier Garrigue, Claire |
author_facet |
Chero, Guillaume Pradel, Roger Derville, Solène Bonneville, Claire Gimenez, Olivier Garrigue, Claire |
author_sort |
Chero, Guillaume |
title |
Reproductive capacity of an endangered and recovering population of humpback whales in the Southern Hemisphere |
title_short |
Reproductive capacity of an endangered and recovering population of humpback whales in the Southern Hemisphere |
title_full |
Reproductive capacity of an endangered and recovering population of humpback whales in the Southern Hemisphere |
title_fullStr |
Reproductive capacity of an endangered and recovering population of humpback whales in the Southern Hemisphere |
title_full_unstemmed |
Reproductive capacity of an endangered and recovering population of humpback whales in the Southern Hemisphere |
title_sort |
reproductive capacity of an endangered and recovering population of humpback whales in the southern hemisphere |
publisher |
HAL CCSD |
publishDate |
2020 |
url |
https://hal.science/hal-02924219 https://hal.science/hal-02924219/document https://hal.science/hal-02924219/file/Chero%20MEPS%202020.pdf https://doi.org/10.3354/meps13329 |
geographic |
Antarctic Antarctic Peninsula Pacific The Antarctic |
geographic_facet |
Antarctic Antarctic Peninsula Pacific The Antarctic |
genre |
Antarc* Antarctic Antarctic Peninsula baleen whales Humpback Whale Megaptera novaeangliae |
genre_facet |
Antarc* Antarctic Antarctic Peninsula baleen whales Humpback Whale Megaptera novaeangliae |
op_source |
ISSN: 0171-8630 EISSN: 1616-1599 Marine Ecology Progress Series https://hal.science/hal-02924219 Marine Ecology Progress Series, 2020, 643, pp.219-227. ⟨10.3354/meps13329⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.3354/meps13329 hal-02924219 https://hal.science/hal-02924219 https://hal.science/hal-02924219/document https://hal.science/hal-02924219/file/Chero%20MEPS%202020.pdf doi:10.3354/meps13329 |
op_rights |
info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.3354/meps13329 |
container_title |
Marine Ecology Progress Series |
container_volume |
643 |
container_start_page |
219 |
op_container_end_page |
227 |
_version_ |
1766270725161746432 |
spelling |
ftunivnantes:oai:HAL:hal-02924219v1 2023-05-15T14:01:08+02:00 Reproductive capacity of an endangered and recovering population of humpback whales in the Southern Hemisphere Chero, Guillaume Pradel, Roger Derville, Solène Bonneville, Claire Gimenez, Olivier Garrigue, Claire Ecologie marine tropicale des océans Pacifique et Indien (ENTROPIE Nouvelle-Calédonie ) Institut de Recherche pour le Développement (IRD Nouvelle-Calédonie )-Ifremer - Nouvelle-Calédonie Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER)-Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER)-Université de la Nouvelle-Calédonie (UNC) Centre d’Ecologie Fonctionnelle et Evolutive (CEFE) Université Paul-Valéry - Montpellier 3 (UPVM)-École pratique des hautes études (EPHE) Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD France-Sud )-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Institut Agro - Montpellier SupAgro Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro) Leibniz Institute for Zoo and Wildlife Research (IZW) Leibniz Association Kélonia - Observatoire des tortues marines Laboratoire d'Astrophysique de Marseille (LAM) Aix Marseille Université (AMU)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales Toulouse (CNES)-Centre National de la Recherche Scientifique (CNRS) 2020 https://hal.science/hal-02924219 https://hal.science/hal-02924219/document https://hal.science/hal-02924219/file/Chero%20MEPS%202020.pdf https://doi.org/10.3354/meps13329 en eng HAL CCSD Inter Research info:eu-repo/semantics/altIdentifier/doi/10.3354/meps13329 hal-02924219 https://hal.science/hal-02924219 https://hal.science/hal-02924219/document https://hal.science/hal-02924219/file/Chero%20MEPS%202020.pdf doi:10.3354/meps13329 info:eu-repo/semantics/OpenAccess ISSN: 0171-8630 EISSN: 1616-1599 Marine Ecology Progress Series https://hal.science/hal-02924219 Marine Ecology Progress Series, 2020, 643, pp.219-227. ⟨10.3354/meps13329⟩ New Caledonia Pacific population Recovery Sexual maturity Calving interval Calving rate Humpback whales [SDE.BE]Environmental Sciences/Biodiversity and Ecology [SDV.BA.ZV]Life Sciences [q-bio]/Animal biology/Vertebrate Zoology info:eu-repo/semantics/article Journal articles 2020 ftunivnantes https://doi.org/10.3354/meps13329 2023-03-08T03:53:56Z International audience Estimating demographic parameters is essential to assessing the recovery potential of severely depleted populations of marine mammal species such as the baleen whales, which were decimated by commercial whaling of the past century. The Oceania humpback whale Megaptera novaeangliae population is classified as endangered by the IUCN because of low numbers and a slow recovery rate. Nevertheless, an anomalously strong increase has recently been detected in the New Caledonia breeding population. To determine the drivers of population growth, reproductive parameters were estimated for the first time for a humpback whale population of Oceania. Based on an extensive monitoring program (1995-2018), recapture histories were reconstructed for 607 females and incorporated in multi-event capture-recapture models. As the females’ ages were generally unknown (87%), 2 models with contrasting age scenarios were investigated. For females of unknown age, the mature scenario assumed maturity at the first encounter, while the immature scenario assumed immaturity within 7 yr after the first encounter, unless the female was encountered breeding. These models respectively resulted in a calving interval of 1.49 yr (95% CI: 1.21-2.08) or 2.83 yr (95% CI: 2.28-3.56) and a calving rate of 0.67 or 0.35. The relatively high calving rate modelled by the mature model is consistent with high pregnancy rates recently observed in the migratory corridors of the Kermadec Islands and on the feeding grounds of the Antarctic Peninsula. Therefore, our results suggest that the recovery of the New Caledonia humpback whale population from past exploitation may be partially driven by an increased reproductive capacity. Article in Journal/Newspaper Antarc* Antarctic Antarctic Peninsula baleen whales Humpback Whale Megaptera novaeangliae Université de Nantes: HAL-UNIV-NANTES Antarctic Antarctic Peninsula Pacific The Antarctic Marine Ecology Progress Series 643 219 227 |