Détail de l'auteur
Auteur John O'Halloran |
Documents disponibles écrits par cet auteur (19)
Ajouter le résultat dans votre panier Affiner la recherche![]()
Article
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[...]![]()
Article
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[...]![]()
Article
Olivia Crowe, Auteur ; Andy J. Musgrove, Auteur ; John O'Halloran, AuteurCapsule Population estimates for 51 common breeding birds, totalling 62 million individuals, were estimated for Ireland.Aims To generate robust population estimates for common and widespread breeding birds across Ireland.Methods Densities were g[...]![]()
Article
Alex S. Copland, Auteur ; Olivia Crowe, Auteur ; Mark W. Wilson, Auteur ; John O'Halloran, AuteurCapsule Skylarks breeding in Ireland prefer extensive grassland habitats and almost completely avoid tillage habitats. Aims To describe the distribution and habitat use of breeding Skylarks in Ireland, particularly in lowland agricultural habita[...]![]()
Article
Abdelazize Franck Bougaham, Auteur ; Riadh Moulai, Auteur ; John O'Halloran, AuteurCapsule The first breeding data for this population of Grey Wagtails Motacilla cinerea at the southern edge of their breeding range in North Africa show smaller clutches and the production of fewer young compared with populations in the core of [...]![]()
Article
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[...]![]()
Article
Olivia Crowe, Auteur ; Richard H. Coombes, Auteur ; Liam Lysaght, Auteur ; Cliona O'Brien, Auteur ; Kingshuk Roy Choudhury, Auteur ; Alyn J. Walsh, Auteur ; John H. Wilson, Auteur ; John O'Halloran, AuteurCapsule The first analyses of trends in relative abundance of terrestrial birds in Ireland showed that trends were predominantly stable or increased between 1998 and 2008. Aims To determine trends in relative abundance of common and widespread b[...]![]()
Article
Mark W. Wilson, Auteur ; Tom Gittings, Auteur ; Thomas C. Kelly, Auteur ; John O'Halloran, AuteurCapsule Open spaces and areas dominated by broadleaved trees make an important contribution to the bird diversity of conifer plantations.![]()
Article
Katherine M. Kelleher, Auteur ; John O'Halloran, AuteurCapsule Habitat significantly influences nest-site choice, breeding output and daily nest failure rates in Song Thrushes. Aims To describe nesting habitat of a stable Song Thrush breeding population, investigate habitat influence on breeding, an[...]![]()
Article
Katherine M. Kelleher, Auteur ; John O'Halloran, AuteurCapsule Habitat significantly influences nest-site choice, breeding output and daily nest failure rates in Song Thrushes. Aims To describe nesting habitat of a stable Song Thrush breeding population, investigate habitat influence on breeding, an[...]![]()
Article
Katherine M. Kelleher, Auteur ; John O'Halloran, AuteurCapsule Breeding characteristics were explained by agricultural intensification, climate, latitude and insular syndrome. Aims To describe the timing of breeding, clutch size and number of nestlings hatched and fledged, assess nesting success and[...]![]()
Article
Mark W. Wilson, Auteur ; Josephine Pithon, Auteur ; Tom Gittings, Auteur ; Tom C. Kelly, Auteur ; Paul S. Giller, Auteur ; John O'Halloran, AuteurCapsule Bird species assemblages are strongly dependent on growth stage and forest structure, but do not appear to be greatly affected by tree species composition. Aims To investigate changes in bird species composition of plantation forests in [...]![]()
Article
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[...]![]()
Article
Merita M. O'Connell, Auteur ; Usna Keating, Auteur ; Deirdre McElligott, Auteur ; Paddy O'Reilly, Auteur ; Julianna O'Callaghan, Auteur ; John O'Halloran, AuteurDans Wildfowl (61 2011)Pink feather colouration in normally white adult Mute Swans Cygnus olor is described here for the first time. Symmetrical salmon-pink colour was first evident on primary feather tips after moult (July August), spread to secondary and tertiary re[...]![]()
Article
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 [...]![]()
Article
John O'Halloran, Auteur ; Patrick Smiddy, Auteur ; Barry O'Mahony, AuteurTotals of 1,833 nestling and 478 full grown Dippers Cinclus cinclus were ringed in southwest Ireland between 1989 and 1998. Three of these birds were reported by the public and we recaptured 373 individuals. Of these, 151 (40%) had moved from th[...]![]()
Article
Rebecca L. Stirnemann, Auteur ; John O'Halloran, Auteur ; Margaret Ridgway, Auteur ; Alison Donnelly, AuteurUnderstanding the departure decisions of migratory birds is critical for determining how changing climatic conditions will influence subsequent arrival times on the breeding grounds. A long-term dataset (1972-2008) of Whooper Swan Cygnus cygnus [...]![]()
Article
Anita M. Donaghy, Auteur ; Rhys E. Green, Auteur ; John O'Halloran, AuteurKnowledge of the timing of migration of young Corncrakes is required for effective implementation of conservation measures. Forty Corncrake chicks were radiotracked during the period between independence and departure from the natal area to dete[...]



