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Auteur Graham E. Austin |
Documents disponibles écrits par cet auteur (12)
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Article
Ian D. Woodward, Auteur ; Graham E. Austin, Auteur ; Philipp H. Boersch-Supan, Auteur ; Chris B. Thaxter, Auteur ; Niall H.K. Burton, AuteurCapsule We assessed annual changes in Eurasian Curlew Numenius arquata wintering numbers at estuaries in England and Wales over 40 years against local and broadscale factors. Long-term trends likely reflect the cessation of hunting, but potentia[...]![]()
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Greg J. Conway, Auteur ; Graham E. Austin, Auteur ; Markus Handschuh, Auteur ; Allan L. Drewitt, Auteur ; Niall H. K. Burton, AuteurCapsule: The 2007 national survey of the UK breeding population of Little Ringed Plovers shows a further spread into Scotland and Wales since the previous survey in 1984. In contrast, there has been a significant decrease in the Ringed Plover br[...]![]()
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Niall H. K. Burton, Auteur ; Alexander N. Banks, Auteur ; John R. Calladine, Auteur ; Graham E. Austin, AuteurCapsule The UK supported over 3.8 million wintering gulls in 2003/04-2005/06. Aims To provide new winter population estimates for Great Britain, its constituent countries, Northern Ireland, Channel Islands and Isle of Man, for five species of gu[...]![]()
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Alexander N. Banks, Auteur ; Niall H. K. Burton, Auteur ; John R. Calladine, Auteur ; Graham E. Austin, AuteurDans Bird Study (56 2009)Capsule Winter Gull Roost Survey data spanning 50 years were used to generate population indices. Aims To evaluate how wintering numbers of five gull species have changed in Great Britain over the last five decades. Methods Generalized linear mo[...]![]()
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Alexander N. Banks, Auteur ; Niall H. K. Burton, Auteur ; John R. Calladine, Auteur ; Graham E. Austin, AuteurDans Bird Study (56 2009)Capsule Winter Gull Roost Survey data spanning 50 years were used to generate population indices. Aims To evaluate how wintering numbers of five gull species have changed in Great Britain over the last five decades. Methods Generalized linear mo[...]![]()
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Olivia Crowe, Auteur ; Graham E. Austin, Auteur ; Kendrew Colhoun, Auteur ; Peter A. Cranswick, Auteur ; Melanie Kershaw, Auteur ; Andy J. Musgrove, AuteurCapsule There has been a decline in the numbers of waterbirds wintering in Ireland between 1994/95 and 2003/04, including a 5% decline in wildfowl and an 11% decline in waders. Aims To provide estimates of numbers and trends in relative abundanc[...]![]()
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Graham E. Austin, Auteur ; Mark M. Rehfisch, Auteur ; John R. Allan, Auteur ; Steve J. Holloway, AuteurCapsule Both populations are increasing at a similar rate. Aims During 2000, an extensive survey of introduced Greater Canada Geese and re-established Greylag Geese in Great Britain was undertaken in order to update population estimates lost mad[...]![]()
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Simon Gillings, Auteur ; Graham E. Austin, Auteur ; Robert J. Fuller, Auteur ; William J. Sutherland, AuteurCapsule The winter distribution of Golden Plover and Lapwing has shifted east since the mid-1980s, perhaps in response to climate change. Aims To combine analyses of winter trends on wetlands and flocks on farmland to assess the current status o[...]![]()
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Sarah F. Jackson, Auteur ; Graham E. Austin, Auteur ; Michael J. S. Armitage, AuteurCapsule Population size estimates of widely dispersed waterbird species in Great Britain were improved using a stratified random sample of habitats in addition to standard counts of known wetlands. Aims To improve the estimation of national popu[...]![]()
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Philip W. Atkinson, Auteur ; Graham E. Austin, Auteur ; Mark M. Rehfisch, Auteur ; Helen Baker, Auteur ; Peter Cranswick, Auteur ; Mel Kershaw, Auteur ; James Robinson, Auteur ; Rowena H. W. Langston, Auteur ; David A. Stroud, Auteur ; Chris Van Turnhout, Auteur ; Ilya M. D. Maclean, AuteurTo manage and conserve wildlife populations effectively it is necessary to use methods that identify the often non-linear trends in populations, have an inbuilt assessment of trend quality and can analyse count data from a range of spatial scale[...]![]()
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Robin M. Ward, Auteur ; Peter A. Cranswick, Auteur ; Melanie Kershaw, Auteur ; Graham E. Austin, Auteur ; Allan W. Brown, Auteur ; Lyndesay M. Brown, Auteur ; Jon C. Coleman, Auteur ; Helen K. Chisholm, Auteur ; Chris J. Spray, AuteurDans Wildfowl (57 2007)In 2002, a census of Mute Swans Cygnus olor was carried out in Great Britain and the Isle of Man, to determine the size of the Mute Swan population during the breeding season and to distinguish between the numbers of breeding and non-breeding bi[...]![]()
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Andrew J. Musgrove, Auteur ; Graham E. Austin, Auteur ; Richard D. Hearn, Auteur ; Chas A. Holt, Auteur ; David A. Stroud, Auteur ; Simon R. Wotton, AuteurIn total, over 12.5 million waterbirds occur in Britain during the winter. Estimates of the numbers of non-breeding waterbirds visiting Britain are important for the birds' conservation, both for status assessments and for the identification and[...]



