Factors influencing Hen Harrier Circus cyaneus territory site selection and breeding success

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dc.contributor.authorCaravaggi, Anthony
dc.contributor.authorIrwin, Sandra
dc.contributor.authorLusby, John
dc.contributor.authorRuddock, Marc
dc.contributor.authorO'Toole, Lorcán
dc.contributor.authorMee, Allan
dc.contributor.authorNagle, Tony
dc.contributor.authorO'Neill, Shane
dc.contributor.authorTierney, David
dc.contributor.authorMcCarthy, Alan.
dc.contributor.authorO'Halloran, John
dc.contributor.funderDepartment of Agriculture, Food and the Marineen
dc.date.accessioned2020-01-09T12:06:03Z
dc.date.available2020-01-09T12:06:03Z
dc.date.issued2019-12-04
dc.date.updated2020-01-09T11:57:38Z
dc.description.abstractCapsule: Our findings regarding Hen Harrier Circus cyaneus territory site selection and breeding success in Ireland offer an opportunity for the development of initiatives and conservation actions aimed at enhancing the suitability of upland areas for breeding Hen Harriers and ensuring the long-term persistence of the species.Aims: To investigate landscape-scale associations between habitat composition and Hen Harrier territory site selection, and to explore the influence of habitat and climate on breeding success.Methods: We used multi-model inference from generalized linear models and Euclidean distance analyses to explore the influence of habitat, topographic, anthropogenic and climatic factors on Hen Harrier territory selection and breeding success in Ireland, based on data from national breeding surveys in 2010 and 2015.Results: Hen Harrier territories were associated with heath/shrub, bog and pre-thicket coniferous forests. Comparisons between territories and randomly generated pseudo-absences (upland and lowland) showed that breeding pairs preferentially select for these habitats. Breeding success was negatively influenced by rainfall early in the breeding season and by climatic instability, and was positively influenced by the presence of heath/shrub and bog.Conclusions: The results suggest that Hen Harrier breeding success is compromised by the synergistic effects of climate, landscape composition and management. Effective conservation of Hen Harriers in Ireland will therefore rely on landscape-scale initiatives.en
dc.description.statusPeer revieweden
dc.description.versionAccepted Versionen
dc.format.mimetypeapplication/pdfen
dc.identifier.citationCaravaggi, A., Irwin, S., Lusby, J., Ruddock, M., O'Toole, L., Mee, A., Nagle, T., O'Neill, S., Tierney, D., McCarthy, A. and O'Halloran, J. (2019) 'Factors influencing Hen Harrier Circus cyaneus territory site selection and breeding success', Bird Study, 66(3), pp. 366-377. doi: 10.1080/00063657.2019.1692778en
dc.identifier.doi10.1080/00063657.2019.1692778en
dc.identifier.eissn1944-6705
dc.identifier.endpage377en
dc.identifier.issn0006-3657
dc.identifier.issued3en
dc.identifier.journaltitleBird Studyen
dc.identifier.startpage366en
dc.identifier.urihttps://hdl.handle.net/10468/9473
dc.identifier.volume66en
dc.language.isoenen
dc.publisherTaylor & Francis Groupen
dc.rights© 2019, Taylor & Francis Group, LLC. This is an Accepted Manuscript of an article published by Taylor & Francis in Bird Study on 4 December 2019, available online: https://doi.org/10.1080/00063657.2019.1692778en
dc.subjectBirds of preyen
dc.subjectConservationen
dc.subjectHabitat modelsen
dc.subjectNest successen
dc.subjectProductivityen
dc.titleFactors influencing Hen Harrier Circus cyaneus territory site selection and breeding successen
dc.typeArticle (peer-reviewed)en
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