Demography of cape petrels in response to environmental changes
International audience Predicting the responses of populations in changing environments is an importanttask for ecologists. Understanding the population dynamics of highlatitudebreeding species is critical given the particularly rapid environmentalchanges that occur in these regions. Using long-term...
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ftunivnantes:oai:HAL:hal-03736435v1 2023-05-15T13:44:06+02:00 Demography of cape petrels in response to environmental changes Sauser, Christophe Delord, Karine Barbraud, Christophe Centre d'Études Biologiques de Chizé - UMR 7372 (CEBC) La Rochelle Université (ULR)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE) 2023 https://hal.science/hal-03736435 https://doi.org/10.1002/1438-390X.12133 en eng HAL CCSD Springer Verlag info:eu-repo/semantics/altIdentifier/doi/10.1002/1438-390X.12133 hal-03736435 https://hal.science/hal-03736435 doi:10.1002/1438-390X.12133 ISSN: 1438-3896 EISSN: 1438-390X Population Ecology https://hal.science/hal-03736435 Population Ecology, 2023, 65 (1), pp.25-37. ⟨10.1002/1438-390X.12133⟩ cape petrel capture–mark–recapture population dynamics sea surface temperature southern annular mode [SDE]Environmental Sciences info:eu-repo/semantics/article Journal articles 2023 ftunivnantes https://doi.org/10.1002/1438-390X.12133 2023-03-08T01:33:28Z International audience Predicting the responses of populations in changing environments is an importanttask for ecologists. Understanding the population dynamics of highlatitudebreeding species is critical given the particularly rapid environmentalchanges that occur in these regions. Using long-term mark–resighting dataacquired over 53-years in Pointe Géologie, Terre Adélie, Antarctica, we estimatedage-specific demographic parameters and evaluated the effect of theenvironment on survival of a poorly known species, the cape petrel Daptioncapense. We then modeled the dynamics of this population using a life-historymodel and performed prospective and retrospective analyses to estimate thesensitivity of the population growth rate to demographic parameters, and toquantify their relative contribution. Survival of cape petrel increased with age,being 0.610 (±0.193) for juveniles, 0.739 (±0.158) for individuals from 2 to4, and 0.920 (±0.031) for older individuals. Minimum age at first reproductionwas 3 years old, the age at which all birds were recruited was 14 years, andmean age at first reproduction was 9.05 (±2.06) years. Adult survival increasedover time and was positively correlated with the southern annular mode(SAM). The stochastic population growth rate was estimated at 1.019, andadult survival over age 5 made the largest contribution to variance of the populationgrowth rate. Sensitivity analyses revealed that population regulation wasmainly driven by the SAM. Our results suggest that despite the decrease inbreeding success, the population of cape petrels at Pointe Géologie increaseddue to the increase in immature and adult survival. Article in Journal/Newspaper Antarc* Antarctica Cape Petrel Cape Petrels Université de Nantes: HAL-UNIV-NANTES Pointe-Géologie ENVELOPE(140.017,140.017,-66.667,-66.667) Terre Adélie ENVELOPE(139.000,139.000,-67.000,-67.000) Terre-Adélie ENVELOPE(138.991,138.991,-59.999,-59.999) Population Ecology |
institution |
Open Polar |
collection |
Université de Nantes: HAL-UNIV-NANTES |
op_collection_id |
ftunivnantes |
language |
English |
topic |
cape petrel capture–mark–recapture population dynamics sea surface temperature southern annular mode [SDE]Environmental Sciences |
spellingShingle |
cape petrel capture–mark–recapture population dynamics sea surface temperature southern annular mode [SDE]Environmental Sciences Sauser, Christophe Delord, Karine Barbraud, Christophe Demography of cape petrels in response to environmental changes |
topic_facet |
cape petrel capture–mark–recapture population dynamics sea surface temperature southern annular mode [SDE]Environmental Sciences |
description |
International audience Predicting the responses of populations in changing environments is an importanttask for ecologists. Understanding the population dynamics of highlatitudebreeding species is critical given the particularly rapid environmentalchanges that occur in these regions. Using long-term mark–resighting dataacquired over 53-years in Pointe Géologie, Terre Adélie, Antarctica, we estimatedage-specific demographic parameters and evaluated the effect of theenvironment on survival of a poorly known species, the cape petrel Daptioncapense. We then modeled the dynamics of this population using a life-historymodel and performed prospective and retrospective analyses to estimate thesensitivity of the population growth rate to demographic parameters, and toquantify their relative contribution. Survival of cape petrel increased with age,being 0.610 (±0.193) for juveniles, 0.739 (±0.158) for individuals from 2 to4, and 0.920 (±0.031) for older individuals. Minimum age at first reproductionwas 3 years old, the age at which all birds were recruited was 14 years, andmean age at first reproduction was 9.05 (±2.06) years. Adult survival increasedover time and was positively correlated with the southern annular mode(SAM). The stochastic population growth rate was estimated at 1.019, andadult survival over age 5 made the largest contribution to variance of the populationgrowth rate. Sensitivity analyses revealed that population regulation wasmainly driven by the SAM. Our results suggest that despite the decrease inbreeding success, the population of cape petrels at Pointe Géologie increaseddue to the increase in immature and adult survival. |
author2 |
Centre d'Études Biologiques de Chizé - UMR 7372 (CEBC) La Rochelle Université (ULR)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE) |
format |
Article in Journal/Newspaper |
author |
Sauser, Christophe Delord, Karine Barbraud, Christophe |
author_facet |
Sauser, Christophe Delord, Karine Barbraud, Christophe |
author_sort |
Sauser, Christophe |
title |
Demography of cape petrels in response to environmental changes |
title_short |
Demography of cape petrels in response to environmental changes |
title_full |
Demography of cape petrels in response to environmental changes |
title_fullStr |
Demography of cape petrels in response to environmental changes |
title_full_unstemmed |
Demography of cape petrels in response to environmental changes |
title_sort |
demography of cape petrels in response to environmental changes |
publisher |
HAL CCSD |
publishDate |
2023 |
url |
https://hal.science/hal-03736435 https://doi.org/10.1002/1438-390X.12133 |
long_lat |
ENVELOPE(140.017,140.017,-66.667,-66.667) ENVELOPE(139.000,139.000,-67.000,-67.000) ENVELOPE(138.991,138.991,-59.999,-59.999) |
geographic |
Pointe-Géologie Terre Adélie Terre-Adélie |
geographic_facet |
Pointe-Géologie Terre Adélie Terre-Adélie |
genre |
Antarc* Antarctica Cape Petrel Cape Petrels |
genre_facet |
Antarc* Antarctica Cape Petrel Cape Petrels |
op_source |
ISSN: 1438-3896 EISSN: 1438-390X Population Ecology https://hal.science/hal-03736435 Population Ecology, 2023, 65 (1), pp.25-37. ⟨10.1002/1438-390X.12133⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1002/1438-390X.12133 hal-03736435 https://hal.science/hal-03736435 doi:10.1002/1438-390X.12133 |
op_doi |
https://doi.org/10.1002/1438-390X.12133 |
container_title |
Population Ecology |
_version_ |
1766197806077313024 |