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Auteur Sandra Irwin |
Documents disponibles écrits par cet auteur (11)
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Article
Alan McCarthy, Auteur ; Pat Smiddy, Auteur ; Tony Nagle, Auteur ; Allan Mee, Auteur ; Sandra Irwin, Auteur ; Anthony Caravaggi, Auteur ; John O’Halloran, AuteurCapsule Habitat composition plays a key role in determining the winter diet of the Hen Harrier Circus cyaneus, which varies across the winter season and between years.Aims To determine the winter diet of the Hen Harrier and examine temporal and [...]![]()
Article
Darío Fernández-Bellon, Auteur ; John Lusby, Auteur ; Jules Bos, Auteur ; Tonio Schaub, Auteur ; Alan McCarthy, Auteur ; Anthony Caravaggi, Auteur ; Sandra Irwin, Auteur ; John O’Halloran, AuteurHen Harrier Circus cyaneus and Short-eared Owl Asio flammeus are open-country birds of prey with overlapping distributions. Although both species face similar conservation threats across their ranges, work to date has largely been undertaken at [...]![]()
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Anthony Caravaggi, Auteur ; Sandra Irwin, Auteur ; John Lusby, Auteur ; Marc Ruddock, Auteur ; Allan Mee, Auteur ; Tony Nagle, Auteur ; Lorcan O'Toole, Auteur ; Shane O'Neill, Auteur ; John O’Halloran, AuteurCapsulePatterns in the frequency and co-occurrence of anthropogenic pressures associated with suitable breeding habitat for Hen Harriers Circus cyaneus demonstrates the need for specific, focussed management and policy options aimed at mitigatin[...]![]()
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Anthony Caravaggi, Auteur ; Sandra Irwin, Auteur ; John Lusby, Auteur ; Marc Ruddock, Auteur ; Lorcan O'Toole, Auteur ; Allan Mee, Auteur ; Tony Nagle, Auteur ; Shane O'Neill, Auteur ; David Tierney, Auteur ; Alan McCarthy, Auteur ; John O'Halloran, AuteurCapsule: 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 are[...]![]()
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Darío Fernández-Bellon, Auteur ; Mark W. Wilson, Auteur ; Sandra Irwin, Auteur ; Thomas C. Kelly, Auteur ; Barry O’Mahony, Auteur ; John O’Halloran, AuteurNest camera footage from 13 Hen Harrier Circus cyaneus nests was analysed to document patterns of adult attendance, incubation, brooding and prey delivery rates. Nest attendance was high throughout the incubation stage and began to decrease when[...]![]()
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John Lusby, Auteur ; Ilse Corkery, Auteur ; Shane McGuiness, Auteur ; Darío Fernández-Bellon, Auteur ; Larry Toal, Auteur ; David Norriss, Auteur ; Dermot Breen, Auteur ; Aonghus O’Donaill, Auteur ; Damian Clarke, Auteur ; Sandra Irwin, Auteur ; John L. Quinn, Auteur ; John O’Halloran, AuteurCapsule: Long-term trends in Merlin Falco columbarius breeding performance remained stable during a period of extensive afforestation in Ireland, where Merlin predominantly select conifer plantations for nesting.Aims: To determine breeding perfo[...]![]()
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Mark W. Wilson, Auteur ; Darío Fernández-Bellon, Auteur ; Sandra Irwin, Auteur ; John O’Halloran, AuteurCapsule: The data presented here demonstrate a considerable spatial overlap between wind farms and the breeding distribution of Hen Harriers in Ireland, but evidence for a negative impact of wind farms on their population is weak.Aims: To assess[...]![]()
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Conor T. Graham, Auteur ; Mark W. Wilson, Auteur ; Tom Gittings, Auteur ; Thomas C. Kelly, Auteur ; Sandra Irwin, Auteur ; Oisin F. McD Sweeney, Auteur ; John O'Halloran, AuteurCapsule In Ireland, which has relatively low diversity of bird species, commercially mature plantation oak forests (aged 72-151 years old) have similar bird diversity to typical semi-natural oak woodlands, and higher bird diversity than over-bro[...]![]()
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Oisin F. McD Sweeney, Auteur ; Mark W. Wilson, Auteur ; Sandra Irwin, Auteur ; Thomas C. Kelly, Auteur ; John O'Halloran, AuteurCapsule Early stages of the plantation forest cycle have distinct bird communities and bird density was significantly higher in the second rotation than in the first for a given age class. Aims To characterize the bird communities in Irish secon[...]![]()
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The importance of pre-thicket conifer plantations for nesting Hen Harriers Circus cyaneus in Ireland
Mark W. Wilson, Auteur ; Sandra Irwin, Auteur ; David W. Norriss, Auteur ; Stephen F. Newton, Auteur ; Kevin Collins, Auteur ; Thomas C. Kelly, Auteur ; John O'Halloran, AuteurHen Harriers Circus cyaneus are threatened across much of their range and their conservation requires appropriate habitat management. The locations of 148 Hen Harrier nests found in the Republic of Ireland during national breeding surveys in 200[...]![]()
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Mark W. Wilson, Auteur ; Barry O'Donoghue, Auteur ; Barry O'Mahony, Auteur ; Chris Cullen, Auteur ; Tim O'Donoghue, Auteur ; Geoff Oliver, Auteur ; Barry Ryan, Auteur ; Paul Troake, Auteur ; Sandra Irwin, Auteur ; Thomas C. Kelly, Auteur ; Jay J. Rotella, Auteur ; John O'Halloran, AuteurDuring the past century, the upland breeding areas of Hen Harriers in Ireland have been extensively afforested. There is no evidence that this species avoids breeding in heavily forested landscapes and, indeed, young commercial forests in their [...]



