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Combining survey and remotely sensed environmental data to estimate the habitat associations, abundance and distribution of breeding thin-billed prions Pachyptila belcheri and Wilson’s storm-petrels Oceanites oceanicus on a South Atlantic tussac island

2021Journal article Open access
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dc.contributor.authorStokes, Allan W.
dc.contributor.authorCatry, Paulo
dc.contributor.authorMatthiopoulos, Jason
dc.contributor.authorBoldenow, Megan
dc.contributor.authorClark, T. J.
dc.contributor.authorGuest, Amy
dc.contributor.authorMarengo, Ilaria
dc.contributor.authorWakefield, Ewan
dc.date.accessioned2021-04-23T10:26:12Z
dc.date.available2021-04-23T10:26:12Z
dc.date.issued2021
dc.description.abstractSmall petrels are the most abundant seabirds in the Southern Ocean. However, because they breed in burrows on remote and often densely vegetated islands, their colony sizes and conservation status remain poorly known. To estimate the abundance of these species on Bird Island in the Falkland archipelago, we systematically surveyed their breeding burrow density and occupancy across this near-pristine tussac (Poa flabellata)-covered island. By modelling burrow density as functions of topography and Sentinel 2 satellite-derived Normalised Difference Vegetation Index data, we inferred habitat associations and predicted burrow abundance of the commonest species—Thin-billed Prions (Pachyptila belcheri) and Wilson’s Storm-petrels (Oceanites oceanicus). We estimate that there are 631,000 Thin-billed Prion burrows on the island (95% CI 496,000–904,000 burrows). Assuming that burrow occupancy lies between 12 and 97%, this equates to around 76,000–612,000 breeding pairs, making Bird Island the second or third largest P. belcheri colony in the world, holding approximately 3–27% of the species’ breeding population. We estimate that 8200–9800 (95% CI 5,200–18,300 pairs) pairs of Wilson’s Storm-petrels also breed on the island. Notably, the latter burrowed predominantly under and within tussac pedestals, whereas they are usually assumed to breed in rock cavities. Thin-billed Prions are declining in the Kerguelen archipelago, but their population trends in the Falklands are unknown. Given the wide confidence intervals around our own and other population estimates for these cryptic species, we recommend that their populations should be monitored regularly, at multiple sites.pt_PT
dc.description.sponsorshipFundação para a Ciência e Tecnologia - FCTpt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationStokes, A. W., · Catry, P., ·Matthiopoulos, J., Boldenow, M., Clark, · T. J., · Guest, A. ,· Marengo, I., & · Wakefield, E. D. (2021). Combining survey and remotely sensed environmental data to estimate the habitat associations, abundance and distribution of breeding thin-billed prions Pachyptila belcheri and Wilson’s storm-petrels Oceanites oceanicus on a South Atlantic tussac island. Biology Biology, 44(4), 809-821 https://doi.org/10.1007/s00300-021-02842-3pt_PT
dc.identifier.doi10.1007/s00300-021-02842-3pt_PT
dc.identifier.issn07224060
dc.identifier.urihttp://hdl.handle.net/10400.12/8100
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherSpringer Verlagpt_PT
dc.relationUIDB/04,292/2020pt_PT
dc.relationUIDP/04,292/2020pt_PT
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectBurrowing petrelpt_PT
dc.subjectHabitat modelpt_PT
dc.subjectSeabirdpt_PT
dc.subjectColonypt_PT
dc.subjectFalklandpt_PT
dc.subjectPopulationpt_PT
dc.titleCombining survey and remotely sensed environmental data to estimate the habitat associations, abundance and distribution of breeding thin-billed prions Pachyptila belcheri and Wilson’s storm-petrels Oceanites oceanicus on a South Atlantic tussac islandpt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.conferencePlaceGermanypt_PT
oaire.citation.endPage821pt_PT
oaire.citation.issue4pt_PT
oaire.citation.startPage809pt_PT
oaire.citation.titlePolar Biologypt_PT
oaire.citation.volume44pt_PT
person.familyNameCatry
person.familyNameMatthiopoulos
person.familyNameGuest
person.familyNameWakefield
person.givenNamePaulo
person.givenNameJason
person.givenNameAmy
person.givenNameEwan
person.identifier.ciencia-idEF1A-6A4A-013A
person.identifier.ciencia-id6318-F7FF-05F2
person.identifier.orcid0000-0003-3000-0522
person.identifier.orcid0000-0003-3639-8172
person.identifier.orcid0000-0003-1884-8651
person.identifier.orcid0000-0002-2586-1232
person.identifier.ridI-5408-2013
person.identifier.scopus-author-id7003725276
person.identifier.scopus-author-id6602763763
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
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