Linking winter habitat use, diet and reproduction in snowy owls using satellite tracking and stable isotope analyses
Coupling isotope values of feathers and satellite tracking of individuals have the potential to reveal multi-season linkages between wintering habitat, diet and carry-over effects on reproductive parameters in migrating birds. Snowy owls Bubo scandiacus have multiple wintering tactics as they can us...
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2020
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ftdatacite:10.6084/m9.figshare.13152868 2023-05-15T15:47:05+02:00 Linking winter habitat use, diet and reproduction in snowy owls using satellite tracking and stable isotope analyses Robillard, Audrey Gauthier, Gilles Jean-François Therrien Bêty, Joël 2020 https://dx.doi.org/10.6084/m9.figshare.13152868 https://tandf.figshare.com/articles/journal_contribution/Linking_winter_habitat_use_diet_and_reproduction_in_snowy_owls_using_satellite_tracking_and_stable_isotope_analyses/13152868 unknown Taylor & Francis https://dx.doi.org/10.1080/10256016.2020.1835888 Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/legalcode cc-by-4.0 CC-BY Ecology FOS Biological sciences 69999 Biological Sciences not elsewhere classified Inorganic Chemistry FOS Chemical sciences Text article-journal Journal contribution ScholarlyArticle 2020 ftdatacite https://doi.org/10.6084/m9.figshare.13152868 https://doi.org/10.1080/10256016.2020.1835888 2021-11-05T12:55:41Z Coupling isotope values of feathers and satellite tracking of individuals have the potential to reveal multi-season linkages between wintering habitat, diet and carry-over effects on reproductive parameters in migrating birds. Snowy owls Bubo scandiacus have multiple wintering tactics as they can use both terrestrial and marine resources during the non-breeding season, but their nomadic behaviour complicates their study. We assessed if inter-individual variability in the diet inferred by feather isotopes could be explained by habitat use in winter as determined by satellite telemetry and examined possible carry-over effects on reproduction. Seventeen breeding female snowy owls were equipped with satellite transmitters and sampled for stable isotopes ( δ 13 C and δ 15 N) in feathers. We found a positive relationship between the use of the coastal and marine environments in winter and the contribution of marine resources to the diet of snowy owls in the previous year based on feather analysis. The proportion of marine contribution to the winter diet was variable among individuals and showed a weak negative relationship to summer body mass but not with laying date or clutch size. Our integrated approach shows the usefulness of isotope analyses to infer habitat use and expand the temporal coverage of radio-tracking studies. Text Bubo scandiacus DataCite Metadata Store (German National Library of Science and Technology) |
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DataCite Metadata Store (German National Library of Science and Technology) |
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topic |
Ecology FOS Biological sciences 69999 Biological Sciences not elsewhere classified Inorganic Chemistry FOS Chemical sciences |
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Ecology FOS Biological sciences 69999 Biological Sciences not elsewhere classified Inorganic Chemistry FOS Chemical sciences Robillard, Audrey Gauthier, Gilles Jean-François Therrien Bêty, Joël Linking winter habitat use, diet and reproduction in snowy owls using satellite tracking and stable isotope analyses |
topic_facet |
Ecology FOS Biological sciences 69999 Biological Sciences not elsewhere classified Inorganic Chemistry FOS Chemical sciences |
description |
Coupling isotope values of feathers and satellite tracking of individuals have the potential to reveal multi-season linkages between wintering habitat, diet and carry-over effects on reproductive parameters in migrating birds. Snowy owls Bubo scandiacus have multiple wintering tactics as they can use both terrestrial and marine resources during the non-breeding season, but their nomadic behaviour complicates their study. We assessed if inter-individual variability in the diet inferred by feather isotopes could be explained by habitat use in winter as determined by satellite telemetry and examined possible carry-over effects on reproduction. Seventeen breeding female snowy owls were equipped with satellite transmitters and sampled for stable isotopes ( δ 13 C and δ 15 N) in feathers. We found a positive relationship between the use of the coastal and marine environments in winter and the contribution of marine resources to the diet of snowy owls in the previous year based on feather analysis. The proportion of marine contribution to the winter diet was variable among individuals and showed a weak negative relationship to summer body mass but not with laying date or clutch size. Our integrated approach shows the usefulness of isotope analyses to infer habitat use and expand the temporal coverage of radio-tracking studies. |
format |
Text |
author |
Robillard, Audrey Gauthier, Gilles Jean-François Therrien Bêty, Joël |
author_facet |
Robillard, Audrey Gauthier, Gilles Jean-François Therrien Bêty, Joël |
author_sort |
Robillard, Audrey |
title |
Linking winter habitat use, diet and reproduction in snowy owls using satellite tracking and stable isotope analyses |
title_short |
Linking winter habitat use, diet and reproduction in snowy owls using satellite tracking and stable isotope analyses |
title_full |
Linking winter habitat use, diet and reproduction in snowy owls using satellite tracking and stable isotope analyses |
title_fullStr |
Linking winter habitat use, diet and reproduction in snowy owls using satellite tracking and stable isotope analyses |
title_full_unstemmed |
Linking winter habitat use, diet and reproduction in snowy owls using satellite tracking and stable isotope analyses |
title_sort |
linking winter habitat use, diet and reproduction in snowy owls using satellite tracking and stable isotope analyses |
publisher |
Taylor & Francis |
publishDate |
2020 |
url |
https://dx.doi.org/10.6084/m9.figshare.13152868 https://tandf.figshare.com/articles/journal_contribution/Linking_winter_habitat_use_diet_and_reproduction_in_snowy_owls_using_satellite_tracking_and_stable_isotope_analyses/13152868 |
genre |
Bubo scandiacus |
genre_facet |
Bubo scandiacus |
op_relation |
https://dx.doi.org/10.1080/10256016.2020.1835888 |
op_rights |
Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/legalcode cc-by-4.0 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.6084/m9.figshare.13152868 https://doi.org/10.1080/10256016.2020.1835888 |
_version_ |
1766381895039320064 |