A comprehensive demographic assessment of the endangered Fiordland crested penguin Eudyptes pachyrhynchus
Many species of Eudyptes penguin have shown substantial population declines and in response, there have been efforts to identify the key demographic parameters. Here, we present the demographic parameters of one of the least well known and the least abundant species of crested penguin, the endangere...
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Taylor & Francis
2017
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ftdatacite:10.6084/m9.figshare.4923389.v1 2023-05-15T18:07:16+02:00 A comprehensive demographic assessment of the endangered Fiordland crested penguin Eudyptes pachyrhynchus Otley, Helen Tansell, Jane Scofield, Paul 2017 https://dx.doi.org/10.6084/m9.figshare.4923389.v1 https://tandf.figshare.com/articles/dataset/A_comprehensive_demographic_assessment_of_the_endangered_Fiordland_crested_penguin_i_Eudyptes_pachyrhynchus_i_/4923389/1 unknown Taylor & Francis https://dx.doi.org/10.1080/03014223.2017.1284135 https://dx.doi.org/10.6084/m9.figshare.4923389 Creative Commons Attribution Non Commercial No Derivatives 4.0 International https://creativecommons.org/licenses/by-nc-nd/4.0/legalcode cc-by-nc-nd-4.0 CC-BY-NC-ND 59999 Environmental Sciences not elsewhere classified FOS Earth and related environmental sciences Ecology FOS Biological sciences Inorganic Chemistry FOS Chemical sciences dataset Dataset 2017 ftdatacite https://doi.org/10.6084/m9.figshare.4923389.v1 https://doi.org/10.1080/03014223.2017.1284135 https://doi.org/10.6084/m9.figshare.4923389 2021-11-05T12:55:41Z Many species of Eudyptes penguin have shown substantial population declines and in response, there have been efforts to identify the key demographic parameters. Here, we present the demographic parameters of one of the least well known and the least abundant species of crested penguin, the endangered Fiordland crested penguin Eudyptes pachyrhynchus . A population study incorporating mark–recapture, nest occupancy and breeding success was conducted over 16 years at several sites in the northern half of the range of the species. Survival probabilities were calculated using standard Cormack–Jolly–Seber models and the Burnham Live and Dead model. The annual probability of true survival for banded birds and apparent survival for birds with transponders were both estimated at 89% during their adult years, which is similar to that reported for Eudyptes penguin species inhabiting more southerly latitudes. Annual juvenile survival was assessed for Fiordland crested penguins until their first return at 77%. The mean breeding success (0.61 ± 0.02 chicks/pair) was higher than is observed for other crested penguin species, except the southern rockhopper penguin, which may be due to having lower A-egg ejection rates and higher rates of fledging two chicks per pair. Breeding success was related to the niche of predators present. Dataset Rockhopper penguin DataCite Metadata Store (German National Library of Science and Technology) |
institution |
Open Polar |
collection |
DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
ftdatacite |
language |
unknown |
topic |
59999 Environmental Sciences not elsewhere classified FOS Earth and related environmental sciences Ecology FOS Biological sciences Inorganic Chemistry FOS Chemical sciences |
spellingShingle |
59999 Environmental Sciences not elsewhere classified FOS Earth and related environmental sciences Ecology FOS Biological sciences Inorganic Chemistry FOS Chemical sciences Otley, Helen Tansell, Jane Scofield, Paul A comprehensive demographic assessment of the endangered Fiordland crested penguin Eudyptes pachyrhynchus |
topic_facet |
59999 Environmental Sciences not elsewhere classified FOS Earth and related environmental sciences Ecology FOS Biological sciences Inorganic Chemistry FOS Chemical sciences |
description |
Many species of Eudyptes penguin have shown substantial population declines and in response, there have been efforts to identify the key demographic parameters. Here, we present the demographic parameters of one of the least well known and the least abundant species of crested penguin, the endangered Fiordland crested penguin Eudyptes pachyrhynchus . A population study incorporating mark–recapture, nest occupancy and breeding success was conducted over 16 years at several sites in the northern half of the range of the species. Survival probabilities were calculated using standard Cormack–Jolly–Seber models and the Burnham Live and Dead model. The annual probability of true survival for banded birds and apparent survival for birds with transponders were both estimated at 89% during their adult years, which is similar to that reported for Eudyptes penguin species inhabiting more southerly latitudes. Annual juvenile survival was assessed for Fiordland crested penguins until their first return at 77%. The mean breeding success (0.61 ± 0.02 chicks/pair) was higher than is observed for other crested penguin species, except the southern rockhopper penguin, which may be due to having lower A-egg ejection rates and higher rates of fledging two chicks per pair. Breeding success was related to the niche of predators present. |
format |
Dataset |
author |
Otley, Helen Tansell, Jane Scofield, Paul |
author_facet |
Otley, Helen Tansell, Jane Scofield, Paul |
author_sort |
Otley, Helen |
title |
A comprehensive demographic assessment of the endangered Fiordland crested penguin Eudyptes pachyrhynchus |
title_short |
A comprehensive demographic assessment of the endangered Fiordland crested penguin Eudyptes pachyrhynchus |
title_full |
A comprehensive demographic assessment of the endangered Fiordland crested penguin Eudyptes pachyrhynchus |
title_fullStr |
A comprehensive demographic assessment of the endangered Fiordland crested penguin Eudyptes pachyrhynchus |
title_full_unstemmed |
A comprehensive demographic assessment of the endangered Fiordland crested penguin Eudyptes pachyrhynchus |
title_sort |
comprehensive demographic assessment of the endangered fiordland crested penguin eudyptes pachyrhynchus |
publisher |
Taylor & Francis |
publishDate |
2017 |
url |
https://dx.doi.org/10.6084/m9.figshare.4923389.v1 https://tandf.figshare.com/articles/dataset/A_comprehensive_demographic_assessment_of_the_endangered_Fiordland_crested_penguin_i_Eudyptes_pachyrhynchus_i_/4923389/1 |
genre |
Rockhopper penguin |
genre_facet |
Rockhopper penguin |
op_relation |
https://dx.doi.org/10.1080/03014223.2017.1284135 https://dx.doi.org/10.6084/m9.figshare.4923389 |
op_rights |
Creative Commons Attribution Non Commercial No Derivatives 4.0 International https://creativecommons.org/licenses/by-nc-nd/4.0/legalcode cc-by-nc-nd-4.0 |
op_rightsnorm |
CC-BY-NC-ND |
op_doi |
https://doi.org/10.6084/m9.figshare.4923389.v1 https://doi.org/10.1080/03014223.2017.1284135 https://doi.org/10.6084/m9.figshare.4923389 |
_version_ |
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