Spring phenology shapes the spatial foraging behavior of Antarctic petrels
In polar seas, the seasonal melting of ice triggers the development of an open-water ecosystem characterized by short-lived algal blooms, the grazing and development of zooplankton, and the influx of avian and mammalian predators. Spatial heterogeneity in the timing of ice melt generates temporal va...
Published in: | Marine Ecology Progress Series |
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Language: | English |
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2017
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Online Access: | http://hdl.handle.net/11250/2443718 https://doi.org/10.3354/meps12082 |
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ftninstnf:oai:brage.nina.no:11250/2443718 2023-05-15T13:49:50+02:00 Spring phenology shapes the spatial foraging behavior of Antarctic petrels Fauchald, Per Tarroux, Arnaud Tveraa, Torkild Cherel, Yves Ropert-Coudert, Yan Kato, Akiko Love, Oliver P. Varpe, Øystein Descamps, Sébastien Polar sees, Arctic Ocean, The Southern Ocean, Austral ocean 2017 application/pdf http://hdl.handle.net/11250/2443718 https://doi.org/10.3354/meps12082 eng eng Norges forskningsråd: xxxxxx Marine Ecology Progress Series. 2017, 568 203-215. urn:issn:0171-8630 http://hdl.handle.net/11250/2443718 https://doi.org/10.3354/meps12082 cristin:1464100 Navngivelse 4.0 Internasjonal http://creativecommons.org/licenses/by/4.0/deed.no CC-BY 203-215 568 Marine Ecology Progress Series Area-restricted search Euphausia superba Marginal ice zone Phytoplankton biomass Procellariiformes Sea ice dynamics Southern Ocean Thalassoica antarctica VDP::Matematikk og Naturvitenskap: 400::Zoologiske og botaniske fag: 480 Journal article Peer reviewed 2017 ftninstnf https://doi.org/10.3354/meps12082 2021-12-23T07:17:15Z In polar seas, the seasonal melting of ice triggers the development of an open-water ecosystem characterized by short-lived algal blooms, the grazing and development of zooplankton, and the influx of avian and mammalian predators. Spatial heterogeneity in the timing of ice melt generates temporal variability in the development of these events across the habitat, offering a natural framework to assess how foraging marine predators respond to the spring phenology. We combined 4 yr of tracking data of Antarctic petrels Thalassoica antarctica with synoptic remote-sensing data on sea ice and chlorophyll a to test how the development of melting ice and primary production drive Antarctic petrel foraging. Cross-correlation analyses of first-passage time revealed that Antarctic petrels utilized foraging areas with a spatial scale of 300 km. These areas changed position or disappeared within 10 to 30 d and showed no spatial consistency among years. Generalized additive model (GAM) analyses suggested that the presence of foraging areas was related to the time since ice melt. Antarctic petrels concentrated their search effort in melting areas and in areas that had reached an age of 50 to 60 d from the date of ice melt. We found no significant relationship between search effort and chlorophyll a concentration. We suggest that these foraging patterns were related to the vertical distribution and profitability of the main prey, the Antarctic krill Euphausia superba. Our study demonstrates that the annual ice melt in the Southern Ocean shapes the development of a highly patchy and elusive food web, underscoring the importance of flexible foraging strategies among top predators. Area-restricted search · Euphausia superba · Marginal ice zone · Phytoplankton biomass · Procellariiformes · Sea ice dynamics · Southern Ocean · Thalassoica antarctica Article in Journal/Newspaper Antarc* Antarctic Antarctic Krill Antarctic Petrel Antarctica Arctic Arctic Ocean Austral Ocean Euphausia superba Phytoplankton Sea ice Southern Ocean Thalassoica antarctica Zooplankton Norwegian Institute for Nature Research: Brage NINA Antarctic Arctic Arctic Ocean Austral Austral Ocean ENVELOPE(90.000,90.000,-60.000,-60.000) Gam ENVELOPE(-57.955,-57.955,-61.923,-61.923) Southern Ocean The Antarctic Marine Ecology Progress Series 568 203 215 |
institution |
Open Polar |
collection |
Norwegian Institute for Nature Research: Brage NINA |
op_collection_id |
ftninstnf |
language |
English |
topic |
Area-restricted search Euphausia superba Marginal ice zone Phytoplankton biomass Procellariiformes Sea ice dynamics Southern Ocean Thalassoica antarctica VDP::Matematikk og Naturvitenskap: 400::Zoologiske og botaniske fag: 480 |
spellingShingle |
Area-restricted search Euphausia superba Marginal ice zone Phytoplankton biomass Procellariiformes Sea ice dynamics Southern Ocean Thalassoica antarctica VDP::Matematikk og Naturvitenskap: 400::Zoologiske og botaniske fag: 480 Fauchald, Per Tarroux, Arnaud Tveraa, Torkild Cherel, Yves Ropert-Coudert, Yan Kato, Akiko Love, Oliver P. Varpe, Øystein Descamps, Sébastien Spring phenology shapes the spatial foraging behavior of Antarctic petrels |
topic_facet |
Area-restricted search Euphausia superba Marginal ice zone Phytoplankton biomass Procellariiformes Sea ice dynamics Southern Ocean Thalassoica antarctica VDP::Matematikk og Naturvitenskap: 400::Zoologiske og botaniske fag: 480 |
description |
In polar seas, the seasonal melting of ice triggers the development of an open-water ecosystem characterized by short-lived algal blooms, the grazing and development of zooplankton, and the influx of avian and mammalian predators. Spatial heterogeneity in the timing of ice melt generates temporal variability in the development of these events across the habitat, offering a natural framework to assess how foraging marine predators respond to the spring phenology. We combined 4 yr of tracking data of Antarctic petrels Thalassoica antarctica with synoptic remote-sensing data on sea ice and chlorophyll a to test how the development of melting ice and primary production drive Antarctic petrel foraging. Cross-correlation analyses of first-passage time revealed that Antarctic petrels utilized foraging areas with a spatial scale of 300 km. These areas changed position or disappeared within 10 to 30 d and showed no spatial consistency among years. Generalized additive model (GAM) analyses suggested that the presence of foraging areas was related to the time since ice melt. Antarctic petrels concentrated their search effort in melting areas and in areas that had reached an age of 50 to 60 d from the date of ice melt. We found no significant relationship between search effort and chlorophyll a concentration. We suggest that these foraging patterns were related to the vertical distribution and profitability of the main prey, the Antarctic krill Euphausia superba. Our study demonstrates that the annual ice melt in the Southern Ocean shapes the development of a highly patchy and elusive food web, underscoring the importance of flexible foraging strategies among top predators. Area-restricted search · Euphausia superba · Marginal ice zone · Phytoplankton biomass · Procellariiformes · Sea ice dynamics · Southern Ocean · Thalassoica antarctica |
format |
Article in Journal/Newspaper |
author |
Fauchald, Per Tarroux, Arnaud Tveraa, Torkild Cherel, Yves Ropert-Coudert, Yan Kato, Akiko Love, Oliver P. Varpe, Øystein Descamps, Sébastien |
author_facet |
Fauchald, Per Tarroux, Arnaud Tveraa, Torkild Cherel, Yves Ropert-Coudert, Yan Kato, Akiko Love, Oliver P. Varpe, Øystein Descamps, Sébastien |
author_sort |
Fauchald, Per |
title |
Spring phenology shapes the spatial foraging behavior of Antarctic petrels |
title_short |
Spring phenology shapes the spatial foraging behavior of Antarctic petrels |
title_full |
Spring phenology shapes the spatial foraging behavior of Antarctic petrels |
title_fullStr |
Spring phenology shapes the spatial foraging behavior of Antarctic petrels |
title_full_unstemmed |
Spring phenology shapes the spatial foraging behavior of Antarctic petrels |
title_sort |
spring phenology shapes the spatial foraging behavior of antarctic petrels |
publishDate |
2017 |
url |
http://hdl.handle.net/11250/2443718 https://doi.org/10.3354/meps12082 |
op_coverage |
Polar sees, Arctic Ocean, The Southern Ocean, Austral ocean |
long_lat |
ENVELOPE(90.000,90.000,-60.000,-60.000) ENVELOPE(-57.955,-57.955,-61.923,-61.923) |
geographic |
Antarctic Arctic Arctic Ocean Austral Austral Ocean Gam Southern Ocean The Antarctic |
geographic_facet |
Antarctic Arctic Arctic Ocean Austral Austral Ocean Gam Southern Ocean The Antarctic |
genre |
Antarc* Antarctic Antarctic Krill Antarctic Petrel Antarctica Arctic Arctic Ocean Austral Ocean Euphausia superba Phytoplankton Sea ice Southern Ocean Thalassoica antarctica Zooplankton |
genre_facet |
Antarc* Antarctic Antarctic Krill Antarctic Petrel Antarctica Arctic Arctic Ocean Austral Ocean Euphausia superba Phytoplankton Sea ice Southern Ocean Thalassoica antarctica Zooplankton |
op_source |
203-215 568 Marine Ecology Progress Series |
op_relation |
Norges forskningsråd: xxxxxx Marine Ecology Progress Series. 2017, 568 203-215. urn:issn:0171-8630 http://hdl.handle.net/11250/2443718 https://doi.org/10.3354/meps12082 cristin:1464100 |
op_rights |
Navngivelse 4.0 Internasjonal http://creativecommons.org/licenses/by/4.0/deed.no |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.3354/meps12082 |
container_title |
Marine Ecology Progress Series |
container_volume |
568 |
container_start_page |
203 |
op_container_end_page |
215 |
_version_ |
1766252357096570880 |