Contrasting impacts of environmental variability on the breeding biology of two sympatric small procellariiform seabirds in south-eastern Australia
Seabirds play a vital role in marine ecosystems and the long-term study of their responses to environmental variations can be used to monitor the effects of climate change on marine fauna. However, slight differences in similar seabird species result in a range of responses which complicates our und...
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ftdeakinunifig:oai:figshare.com:article/20647293 2024-09-09T19:08:04+00:00 Contrasting impacts of environmental variability on the breeding biology of two sympatric small procellariiform seabirds in south-eastern Australia YH Eizenberg A Fromant A Lec'hvien John Arnould 2021-09-01T00:00:00Z http://hdl.handle.net/10779/DRO/DU:20647293.v3 https://figshare.com/articles/journal_contribution/Contrasting_impacts_of_environmental_variability_on_the_breeding_biology_of_two_sympatric_small_procellariiform_seabirds_in_south-eastern_Australia/20647293 unknown http://hdl.handle.net/10779/DRO/DU:20647293.v3 https://figshare.com/articles/journal_contribution/Contrasting_impacts_of_environmental_variability_on_the_breeding_biology_of_two_sympatric_small_procellariiform_seabirds_in_south-eastern_Australia/20647293 CC BY 4.0 Science & Technology Multidisciplinary Sciences Science & Technology - Other Topics PETRELS PELECANOIDES-URINATRIX DIVING PETRELS CLIMATE-CHANGE BASS STRAIT REPRODUCTIVE-PERFORMANCE INTERANNUAL VARIABILITY PACHYPTILA-DESOLATA MARINE CONSERVATION FOOD AVAILABILITY ANTARCTIC PRION School of Life and Environmental Sciences Text Journal contribution 2021 ftdeakinunifig 2024-06-20T00:37:06Z Seabirds play a vital role in marine ecosystems and the long-term study of their responses to environmental variations can be used to monitor the effects of climate change on marine fauna. However, slight differences in similar seabird species result in a range of responses which complicates our understanding of the effects of environmental changes to marine ecosystems. The present study investigated inter-annual differences in the breeding biology (breeding phenology, chick growth rates and breeding success) and environmental conditions (seasonal sea surface temperatures) of important foraging areas in two sympatric small Procellariiform species, the fairy prion (Pachyptila turtur) and the common diving petrel (Pelecanoides urinatrix), over four reproductive seasons (2017–2020) in Bass Strait, south-eastern Australia. Marine heatwaves occurred during the years of 2018/19 and 2019/20 and coincided with years of delayed laying dates, slower chick growth and reduced breeding success, in both species. While fairy prions maintained a relatively high breeding success and broadly constant breeding phenology, common diving petrels delayed the start of the breeding season by up to 50 days and experienced dramatic collapses in breeding success in years of high marine heat wave occurrence. The difference in foraging ecology and physiological capacity (largely in the production of stomach oils and fasting abilities of adults and chicks) between both species are likely to influence the variability and phenology in the observed breeding seasons. Article in Journal/Newspaper Antarc* Antarctic Antarctic prion Pachyptila desolata DRO - Deakin Research Online Antarctic |
institution |
Open Polar |
collection |
DRO - Deakin Research Online |
op_collection_id |
ftdeakinunifig |
language |
unknown |
topic |
Science & Technology Multidisciplinary Sciences Science & Technology - Other Topics PETRELS PELECANOIDES-URINATRIX DIVING PETRELS CLIMATE-CHANGE BASS STRAIT REPRODUCTIVE-PERFORMANCE INTERANNUAL VARIABILITY PACHYPTILA-DESOLATA MARINE CONSERVATION FOOD AVAILABILITY ANTARCTIC PRION School of Life and Environmental Sciences |
spellingShingle |
Science & Technology Multidisciplinary Sciences Science & Technology - Other Topics PETRELS PELECANOIDES-URINATRIX DIVING PETRELS CLIMATE-CHANGE BASS STRAIT REPRODUCTIVE-PERFORMANCE INTERANNUAL VARIABILITY PACHYPTILA-DESOLATA MARINE CONSERVATION FOOD AVAILABILITY ANTARCTIC PRION School of Life and Environmental Sciences YH Eizenberg A Fromant A Lec'hvien John Arnould Contrasting impacts of environmental variability on the breeding biology of two sympatric small procellariiform seabirds in south-eastern Australia |
topic_facet |
Science & Technology Multidisciplinary Sciences Science & Technology - Other Topics PETRELS PELECANOIDES-URINATRIX DIVING PETRELS CLIMATE-CHANGE BASS STRAIT REPRODUCTIVE-PERFORMANCE INTERANNUAL VARIABILITY PACHYPTILA-DESOLATA MARINE CONSERVATION FOOD AVAILABILITY ANTARCTIC PRION School of Life and Environmental Sciences |
description |
Seabirds play a vital role in marine ecosystems and the long-term study of their responses to environmental variations can be used to monitor the effects of climate change on marine fauna. However, slight differences in similar seabird species result in a range of responses which complicates our understanding of the effects of environmental changes to marine ecosystems. The present study investigated inter-annual differences in the breeding biology (breeding phenology, chick growth rates and breeding success) and environmental conditions (seasonal sea surface temperatures) of important foraging areas in two sympatric small Procellariiform species, the fairy prion (Pachyptila turtur) and the common diving petrel (Pelecanoides urinatrix), over four reproductive seasons (2017–2020) in Bass Strait, south-eastern Australia. Marine heatwaves occurred during the years of 2018/19 and 2019/20 and coincided with years of delayed laying dates, slower chick growth and reduced breeding success, in both species. While fairy prions maintained a relatively high breeding success and broadly constant breeding phenology, common diving petrels delayed the start of the breeding season by up to 50 days and experienced dramatic collapses in breeding success in years of high marine heat wave occurrence. The difference in foraging ecology and physiological capacity (largely in the production of stomach oils and fasting abilities of adults and chicks) between both species are likely to influence the variability and phenology in the observed breeding seasons. |
format |
Article in Journal/Newspaper |
author |
YH Eizenberg A Fromant A Lec'hvien John Arnould |
author_facet |
YH Eizenberg A Fromant A Lec'hvien John Arnould |
author_sort |
YH Eizenberg |
title |
Contrasting impacts of environmental variability on the breeding biology of two sympatric small procellariiform seabirds in south-eastern Australia |
title_short |
Contrasting impacts of environmental variability on the breeding biology of two sympatric small procellariiform seabirds in south-eastern Australia |
title_full |
Contrasting impacts of environmental variability on the breeding biology of two sympatric small procellariiform seabirds in south-eastern Australia |
title_fullStr |
Contrasting impacts of environmental variability on the breeding biology of two sympatric small procellariiform seabirds in south-eastern Australia |
title_full_unstemmed |
Contrasting impacts of environmental variability on the breeding biology of two sympatric small procellariiform seabirds in south-eastern Australia |
title_sort |
contrasting impacts of environmental variability on the breeding biology of two sympatric small procellariiform seabirds in south-eastern australia |
publishDate |
2021 |
url |
http://hdl.handle.net/10779/DRO/DU:20647293.v3 https://figshare.com/articles/journal_contribution/Contrasting_impacts_of_environmental_variability_on_the_breeding_biology_of_two_sympatric_small_procellariiform_seabirds_in_south-eastern_Australia/20647293 |
geographic |
Antarctic |
geographic_facet |
Antarctic |
genre |
Antarc* Antarctic Antarctic prion Pachyptila desolata |
genre_facet |
Antarc* Antarctic Antarctic prion Pachyptila desolata |
op_relation |
http://hdl.handle.net/10779/DRO/DU:20647293.v3 https://figshare.com/articles/journal_contribution/Contrasting_impacts_of_environmental_variability_on_the_breeding_biology_of_two_sympatric_small_procellariiform_seabirds_in_south-eastern_Australia/20647293 |
op_rights |
CC BY 4.0 |
_version_ |
1809822294899425280 |