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Article
Carl Mitchell, Auteur ; Larry R. Griffin, Auteur ; Edward Burrell, Auteur ; Geoff M. Hilton, AuteurDans Wildfowl (73 2023)Numbers of breeding Common Scoter Melanitta nigra have declined in Britain and Ireland since the mid-1990s. To investigate little-known aspects of their annual cycle, nine nesting females at four of the main breeding sites in Scotland (in Invern[...]
Article
Mitch D. Weegman, Auteur ; Alyn J. Walsh, Auteur ; Malcolm Alexander Ogilvie, Auteur ; Stuart Bearhop, Auteur ; Geoff M. Hilton, Auteur ; David J. Hodgson, Auteur ; Anthony David Fox, AuteurDans Ibis (164(2) 2022)Population growth rates in geese can be sensitive to small changes in survival and/or production of young, and understanding which demographic rates explain more variation in population change can be crucial for implementing effective conservati[...]
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Kevin A. Wood, Auteur ; Julia L. Newth, Auteur ; Kane Brides, Auteur ; Mike Burdekin, Auteur ; Anne L. Harrison, Auteur ; Steve Heaven, Auteur ; Charlie Kitchin, Auteur ; Leigh Marshall, Auteur ; Carl Mitchell, Auteur ; Jessica Ponting, Auteur ; Dafila K. Scott, Auteur ; Jon Smith, Auteur ; Wim Tijsen, Auteur ; Geoff M. Hilton, Auteur ; Eileen C. Rees, AuteurThe north-west European population of Bewick’s Swan Cygnus columbianus bewickii declined by 38% between 1995 and 2010 and is listed as ‘Endangered’ on the European Red List of birds. Here, we combined information on food resources within the lan[...]
Article
Kevin A. Wood, Auteur ; Julia L. Newth, Auteur ; Geoff M. Hilton, Auteur ; Eileen C. Rees, AuteurAssessments of body condition can provide useful information on changes in the state of individuals within a population, which may in turn help to inform conservation efforts. For example, decreases in body condition over time can indicate reduc[...]
Article
Graeme M. Buchanan, Auteur ; Alexander L. Bond, Auteur ; Nicola J. Crockford, Auteur ; Johannes Kamp, Auteur ; James W. Pearce-Higgins, Auteur ; Geoff M. Hilton, AuteurThe breeding areas of the Critically Endangered Slender-billed Curlew Numenius tenuirostris are all but unknown, with the only well-substantiated breeding records being from the Omsk province, western Siberia. The identification of any remaining[...]
Article
Mitch D. Weegman, Auteur ; Anthony D. Fox, Auteur ; Stuart Bearhop, Auteur ; Geoff M. Hilton, Auteur ; Alyn J. Walsh, Auteur ; Ian R. Cleasby, Auteur ; David J. Hodgson, AuteurUnderstanding movement of individuals between sites is necessary to quantify emigration and immigration, yet previous analyses exploring sex biases in site fidelity among birds have not evaluated remigration (the return of marked birds that move[...]
Article
Mitch D. Weegman, Auteur ; Anthony D. Fox, Auteur ; Stuart Bearhop, Auteur ; Geoff M. Hilton, Auteur ; Alyn J. Walsh, Auteur ; Ian R. Cleasby, Auteur ; David J. Hodgson, AuteurUnderstanding movement of individuals between sites is necessary to quantify emigration and immigration, yet previous analyses exploring sex biases in site fidelity among birds have not evaluated remigration (the return of marked birds that move[...]
Article
Geoff M. Hilton, Auteur ; Tim Cleeves, Auteur ; Tony Murray, Auteur ; Baz Hughes, Auteur ; Ethlyn Gibbs Williams, AuteurDans Wildfowl (51 2000)The West Indian Whistling-duck (Dendrocygna arborea) is globally threatened due to significant population declines during the Twentieth Century. Turks and Caicos is a potentially important range-state for the species, but its status there has ne[...]
Article
Geoff M. Hilton, Auteur ; Tony Murray, Auteur ; Tim Cleeves, Auteur ; Baz Hughes, Auteur ; Ethlyn Gibbs Williams, AuteurDans Wildfowl (51 2000)Wetlands occupy a large proportion of the land area of the Turks and Caicos Islands, a U.K. Overseas Territory in the Bahamas archipelago. Furthermore, over most of the Caicos Islands these wetlands remain effectively unaltered by human activiti[...]
Article
Ross M. Wanless, Auteur ; Peter G. Ryan, Auteur ; Res Altwegg, Auteur ; Andrea Angel, Auteur ; John Cooper, Auteur ; Richard Cuthbert, Auteur ; Geoff M. Hilton, AuteurThe IUCN recently uplisted the Tristan albatross (Diomedea dabbenena) to Critically Endangered. Here we present new data indicating negative population trends on Gough Island arising from low adult survival (similar to 91%, ascribed to accidenta[...]
Article
Geoff M. Hilton, Auteur ; Richard J. Cuthbert, AuteurThe UK has sovereignty over 16 Overseas Territories, which hold some of the world's great seabird colonies and collectively support more endemic and globally threatened bird species than the whole of mainland Europe. Invasive alien mammalian pre[...]
Article
Peter G. Ryan, Auteur ; Clifford Dorse, Auteur ; Geoff M. Hilton, AuteurThe spectacled petrel Procellaria conspicillata is listed as critically endangered due to its small population size and ongoing mortality on long-lines. Spectacled petrels were counted in 2004, repeating a census made in 1999 at their sole breed[...]
Article
The effects of rainfall on different components of seasonal fecundity in a tropical forest passerine
Steffen Oppel, Auteur ; Geoff M. Hilton, Auteur ; Richard Allcorn, Auteur ; Calvin Fenton, Auteur ; Adrian J. Matthews, Auteur ; David W. Gibbons, AuteurSeasonal fecundity is a composite metric that is determined by component parameters such as clutch size, nest survival and re-nesting probability. Many of these component parameters are known to vary with environmental conditions, in particular [...]
Article
David Monticelli, Auteur ; Ricardo Ceia, Auteur ; Ruben Heleno, Auteur ; Hugo Laborda, Auteur ; Sergio Timoteo, Auteur ; Daniel Jareno, Auteur ; Geoff M. Hilton, Auteur ; Jaime A. Ramos, AuteurThis paper reports analyses of a capture-mark-recapture (CMR) dataset of 149 Azores Bullfinches ringed on So Miguel island (Azores) between 2005 and 2007, and recaptured-resighted on a monthly basis over a 4-year period (2005-2008) throughout th[...]
Article
Kevin A. Wood, Auteur ; Julia L. Newth, Auteur ; Geoff M. Hilton, Auteur ; Bart A. Nolet, Auteur ; Eileen C. Rees, AuteurPopulation declines among migratory Arctic-breeding birds are a growing concern for conservationists. To inform the conservation of these declining populations, we need to understand how demographic rates such as breeding success are influenced [...]
Article
Richard Cuthbert, Auteur ; John Cooper, Auteur ; Marie-Helene Burle, Auteur ; Conrad J. Glass, Auteur ; James P. Glass, Auteur ; Simon Glass, Auteur ; Trevor Glass, Auteur ; Geoff M. Hilton, Auteur ; Erica S. Sommer, Auteur ; Ross M. Wanless, Auteur ; Peter G. Ryan, AuteurPopulations of the recently split Northern Rockhopper Penguin Eudyptes moseleyi are restricted to Tristan da Cunha and Gough Island in the South Atlantic, and Amsterdam and St Paul in the Indian Ocean. The majority of the population is in the At[...]
Article
Geoff M. Hilton, Auteur ; David R. Thompson, Auteur
Article
Ricardo S. Ceia, Auteur ; Jaime A. Ramos, Auteur ; Ruben H. Heleno, Auteur ; Geoff M. Hilton, Auteur ; Tiago A. Marques, AuteurThe Azores Bullfinch is endemic to the island of Sao Miguel (Azores, Portugal). Its status was uplisted to Critically Endangered in 2005 on the basis of an extremely small and declining population that was considered to be restricted to a very s[...]
