Demography of cape petrels in response to environmental changes
Abstract Predicting the responses of populations in changing environments is an important task for ecologists. Understanding the population dynamics of high‐latitude breeding species is critical given the particularly rapid environmental changes that occur in these regions. Using long‐term mark–resi...
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crwiley:10.1002/1438-390x.12133 2024-06-02T07:58:16+00:00 Demography of cape petrels in response to environmental changes Sauser, Christophe Delord, Karine Barbraud, Christophe Fondation BNP Paribas Institut Polaire Français Paul Emile Victor 2022 http://dx.doi.org/10.1002/1438-390x.12133 https://onlinelibrary.wiley.com/doi/pdf/10.1002/1438-390X.12133 https://onlinelibrary.wiley.com/doi/full-xml/10.1002/1438-390X.12133 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Population Ecology volume 65, issue 1, page 25-37 ISSN 1438-3896 1438-390X journal-article 2022 crwiley https://doi.org/10.1002/1438-390x.12133 2024-05-03T11:14:52Z Abstract Predicting the responses of populations in changing environments is an important task for ecologists. Understanding the population dynamics of high‐latitude breeding species is critical given the particularly rapid environmental changes that occur in these regions. Using long‐term mark–resighting data acquired over 53‐years in Pointe Géologie, Terre Adélie, Antarctica, we estimated age‐specific demographic parameters and evaluated the effect of the environment on survival of a poorly known species, the cape petrel Daption capense . We then modeled the dynamics of this population using a life‐history model and performed prospective and retrospective analyses to estimate the sensitivity of the population growth rate to demographic parameters, and to quantify 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 to 4, and 0.920 (±0.031) for older individuals. Minimum age at first reproduction was 3 years old, the age at which all birds were recruited was 14 years, and mean age at first reproduction was 9.05 (±2.06) years. Adult survival increased over time and was positively correlated with the southern annular mode (SAM). The stochastic population growth rate was estimated at 1.019, and adult survival over age 5 made the largest contribution to variance of the population growth rate. Sensitivity analyses revealed that population regulation was mainly driven by the SAM. Our results suggest that despite the decrease in breeding success, the population of cape petrels at Pointe Géologie increased due to the increase in immature and adult survival. Article in Journal/Newspaper Antarc* Antarctica Cape Petrel Cape Petrels Daption capense High Latitude Breeding Wiley Online Library 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 |
Wiley Online Library |
op_collection_id |
crwiley |
language |
English |
description |
Abstract Predicting the responses of populations in changing environments is an important task for ecologists. Understanding the population dynamics of high‐latitude breeding species is critical given the particularly rapid environmental changes that occur in these regions. Using long‐term mark–resighting data acquired over 53‐years in Pointe Géologie, Terre Adélie, Antarctica, we estimated age‐specific demographic parameters and evaluated the effect of the environment on survival of a poorly known species, the cape petrel Daption capense . We then modeled the dynamics of this population using a life‐history model and performed prospective and retrospective analyses to estimate the sensitivity of the population growth rate to demographic parameters, and to quantify 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 to 4, and 0.920 (±0.031) for older individuals. Minimum age at first reproduction was 3 years old, the age at which all birds were recruited was 14 years, and mean age at first reproduction was 9.05 (±2.06) years. Adult survival increased over time and was positively correlated with the southern annular mode (SAM). The stochastic population growth rate was estimated at 1.019, and adult survival over age 5 made the largest contribution to variance of the population growth rate. Sensitivity analyses revealed that population regulation was mainly driven by the SAM. Our results suggest that despite the decrease in breeding success, the population of cape petrels at Pointe Géologie increased due to the increase in immature and adult survival. |
author2 |
Fondation BNP Paribas Institut Polaire Français Paul Emile Victor |
format |
Article in Journal/Newspaper |
author |
Sauser, Christophe Delord, Karine Barbraud, Christophe |
spellingShingle |
Sauser, Christophe Delord, Karine Barbraud, Christophe Demography of cape petrels in response to environmental changes |
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 |
Wiley |
publishDate |
2022 |
url |
http://dx.doi.org/10.1002/1438-390x.12133 https://onlinelibrary.wiley.com/doi/pdf/10.1002/1438-390X.12133 https://onlinelibrary.wiley.com/doi/full-xml/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 Daption capense High Latitude Breeding |
genre_facet |
Antarc* Antarctica Cape Petrel Cape Petrels Daption capense High Latitude Breeding |
op_source |
Population Ecology volume 65, issue 1, page 25-37 ISSN 1438-3896 1438-390X |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1002/1438-390x.12133 |
container_title |
Population Ecology |
_version_ |
1800741564720349184 |