A circumpolar review of the breeding distribution and habitat use of the snow petrel (Pagodroma nivea), the world’s most southerly breeding vertebrate

Knowledge of the spatial distribution of many polar seabird species is incomplete due to the remoteness of their breeding locations. Here, we compiled a new database of published and unpublished records of all known snow petrel Pagodroma nivea breeding sites. We quantified local environmental condit...

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Vydáno v:	Polar biology Ročník 48; číslo 1; s. 9
Hlavní autoři:	Francis, Josie, Wakefield, Ewan, Jamieson, Stewart S. R., Phillips, Richard A., Hodgson, Dominic A., Southwell, Colin, Emmerson, Louise, Fretwell, Peter, Bentley, Michael J., McClymont, Erin L.
Médium:	Journal Article
Jazyk:	angličtina
Vydáno:	Berlin/Heidelberg Springer Berlin Heidelberg 01.03.2025 Springer Nature B.V
Témata:	Air temperature Aquatic birds Availability Biomedical and Life Sciences Breeding Breeding seasons Breeding sites Climate change Distance Ecology Environmental conditions Foraging Foraging habitats Geographical distribution Habitat selection Habitat utilization Habitats Holes Ice conditions Ice edge Life Sciences Lithology Maxima Metamorphic rocks Microbiology Missing data Nests New records Oceanography Pagodroma nivea Phenology Plant Sciences Population Population characteristics Population statistics Precipitation Sea ice Seabirds Snow Spatial distribution Vertebrates Wind Zoology Sea-ice conditions Climate Habitat Antarctica Breeding distribution Snow petrel
ISSN:	0722-4060, 1432-2056
On-line přístup:	Získat plný text
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Shrnutí:	Knowledge of the spatial distribution of many polar seabird species is incomplete due to the remoteness of their breeding locations. Here, we compiled a new database of published and unpublished records of all known snow petrel Pagodroma nivea breeding sites. We quantified local environmental conditions at sites by appending indices of climate and substrate, and regional-scale conditions by appending 30 year mean (1992–2021) sea-ice conditions within accessible foraging areas. Breeding snow petrels are reported at 456 sites across Antarctica and subantarctic islands. Although many counts are old or have large margins of error, population estimates available for 222 known sites totalled a minimum of ~ 77400 breeding pairs. However with so many missing data, the true breeding population will be much higher. Most sites are close to the coast (median = 1.15 km) and research stations (median = 26 km). Median distance to the November sea-ice edge (breeding season sea-ice maximum) is 430 km. Locally, most nests occur in cavities in high-grade metamorphic rocks. Minimum air temperatures occur at inland sites, and maxima at their northern breeding limit. Breeding location and cavity selection is likely determined by availability of suitable breeding substrate within sustainable distance of suitable foraging habitat. Within this range, nest sites may then be selected based on local conditions such as cavity size and aspect. Our database will allow formal analyses of habitat selection and provides a baseline against which to monitor future snow petrel distribution changes in response to climate change.
Bibliografie:	ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 14 content type line 23
ISSN:	0722-4060 1432-2056
DOI:	10.1007/s00300-024-03336-8