Variability in foraging ranges of snow petrels and implications for breeding distribution and use of stomach-oil deposits as proxies for paleoclimate

Snow petrel stomach-oil deposits potentially integrate environmental conditions over greater and more seasonally variable areas than previously assumed, probably with a bias towards conditions in the marginal ice zone (outer pack ice) during the early summer when stomach oil deposition due to nest competition is likely greatest. Our results are consistent with the hypothesis that snow petrel breeding range in the western Weddell Sea is limited by access to foraging habitat, such as coastal polynyas. Although tracking data from other colonies would be useful to confirm the generality of our foraging range estimates, we hypothesise that as sea ice fluctuated over previous glacial-interglacial cycles, this regulated breeding distribution across the region.

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Publication Details

Journal
Movement Ecology
Published
2025-11-20
DOI
https://doi.org/10.1186/s40462-025-00609-7
Citations
2
Primary Topic
Arctic and Antarctic ice dynamics
Type
article
Field-Weighted Citation Impact
2.60

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article

Variability in foraging ranges of snow petrels and implications for breeding distribution and use of stomach-oil deposits as proxies for paleoclimate

Sébastien Descamps, Henri Robert, W. James Grecian, Erin L. McClymont et al.
2 citations
Movement Ecology
Arctic and Antarctic ice dynamics
2.60
article

Variability in foraging ranges of snow petrels and implications for breeding distribution and use of stomach-oil deposits as proxies for paleoclimate

Sébastien Descamps, Henri Robert, W. James Grecian, Erin L. McClymont, Eleanor Maedhbh Honan, Anna S. Rix, Ewan D. Wakefield, Richard A. Phillips, Vegard Sandøy Bråthen, A. Rus Hoelzel
article en
2 citations

Abstract

Snow petrel stomach-oil deposits potentially integrate environmental conditions over greater and more seasonally variable areas than previously assumed, probably with a bias towards conditions in the marginal ice zone (outer pack ice) during the early summer when stomach oil deposition due to nest competition is likely greatest. Our results are consistent with the hypothesis that snow petrel breeding range in the western Weddell Sea is limited by access to foraging habitat, such as coastal polynyas. Although tracking data from other colonies would be useful to confirm the generality of our foraging range estimates, we hypothesise that as sea ice fluctuated over previous glacial-interglacial cycles, this regulated breeding distribution across the region.

Movement EcologyVol. 13(1)
British Antarctic Survey (GB), Natural Environment Research Council (GB), Durham University (GB), Brussels School of International Studies (BE), Norwegian Institute for Nature Research (NO), Norwegian Polar Institute (NO)
Leverhulme Trust, Norsk Polarinstitutt, Horizon 2020 Framework Programme
Openalex Percentile: Top 9%
Arctic and Antarctic ice dynamics
2.60
DOIOpen Access PDFOpenAlex
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Variability in foraging ranges of snow petrels and implications for breeding distribution and use of stomach-oil deposits as proxies for paleoclimate — Sébastien Descamps, Henri Robert, et al. · Movement Ecology (2025) | TGRS Research Map | TGRS