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Documents disponibles écrits par cet auteur (27)
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Article
Miguel Ferrer, Auteur ; Rhian Evans, Auteur ; Joanna Hedley, Auteur ; Simon Hollamby, Auteur ; Anna Meredith, Auteur ; Virginia Morandini, Auteur ; Owen Selly, Auteur ; Claire Smith, Auteur ; D. Philip Whitfield, AuteurStudies on normal concentration of blood constituents of free-living birds are not very common. An adequate knowledge of blood chemistry is greatly recommended for those projects involving research and management of populations as far as they ca[...]
Article
Robert Rae, Auteur ; Stuart Rae, Auteur ; Brett K. Sandercock, Auteur ; D. Philip Whitfield, AuteurThe breeding ecology of the Broad-billed Sandpiper Calidris falcinellus was investigated in a long-term study in Finnmark, north Norway during 1993–2019. Nests were mostly located and monitored during the incubation period. We found a total of 1[...]
Article
Alan H. Fielding, Auteur ; David Anderson, Auteur ; Stuart Benn, Auteur ; Roy Dennis, Auteur ; Matthew Geary, Auteur ; Ewan Weston, Auteur ; D. Philip Whitfield, AuteurWind farms may have two broad potential adverse effects on birds via antagonistic processes: displacement from the vicinity of turbines (avoidance), or death through collision with rotating turbine blades. Large raptors are often shown or presum[...]
Article
Robin Reid, Auteur ; Paul F. Haworth, Auteur ; Alan H. Fielding, Auteur ; D. Philip Whitfield, AuteurCapsule: The undulating display flight of Golden Eagles Aquila chrysaetos has a territorial function on current consensus: we found that displays could occur at any location within a home range of territorial birds and were not more frequent at [...]
Article
Daniel B. Hayhow, Auteur ; Steven R. Ewing, Auteur ; Alistair Baxter, Auteur ; Andy Douse, Auteur ; Andrew Stanbury, Auteur ; D. Philip Whitfield, Auteur ; Mark A. Eaton, AuteurCapsule The number of Dotterel breeding in the UK declined by 57% between 1987/88 and 2011, from 980 to 423 breeding males; there has been a contraction of the species’ geographical range as well as declining numbers on core sites.Aims To estima[...]
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Rob Ogden, Auteur ; Elizabeth Heap, Auteur ; Ross McEwing, Auteur ; Ruth Tingay, Auteur ; D. Philip Whitfield, AuteurConservation management of species distributed across fragmented habitats requires consideration of population genetic structure and relative levels of genetic diversity throughout the relevant geographical range. The Golden Eagle Aquila chrysae[...]
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Rob Ogden, Auteur ; Elizabeth Heap, Auteur ; Ross McEwing, Auteur ; Ruth Tingay, Auteur ; D. Philip Whitfield, AuteurConservation management of species distributed across fragmented habitats requires consideration of population genetic structure and relative levels of genetic diversity throughout the relevant geographical range. The Golden Eagle Aquila chrysae[...]
Article
Richard J. Evans, Auteur ; Lorcan O'Toole, Auteur ; D. Philip Whitfield, AuteurCapsule The loss of eagles from large tracts of lowland and upland habitat in Britain and Ireland over the last 1500 years is attributed to human activity. Aim To estimate changes in past distribution and population size of Britain and Ireland's[...]
Article
Richard J. Evans, Auteur ; James Pearce-Higgins, Auteur ; D. Philip Whitfield, Auteur ; Justin R. Grant, Auteur ; Alison MacLennan, Auteur ; Robin Reid, AuteurCapsule Golden and White-tailed Eagles selected different habitats for nesting. Aim To investigate differences in nesting habitat used by sympatrically breeding eagles in western Scotland, following reintroduction of White-tailed Eagles from 197[...]
Article
Mark A. Eaton, Auteur ; Ian A. Dillon, Auteur ; Patrick K. Stirling-Aird, Auteur ; D. Philip Whitfield, AuteurCapsule The third complete survey of Golden Eagles in Britain found 442 pairs. Aim To investigate the population size, distribution and breeding success of Golden Eagles in Britain, for comparison with similar surveys in 1982-83 and 1992. Method[...]
Article
Mark A. Eaton, Auteur ; Ian A. Dillon, Auteur ; Patrick K. Stirling-Aird, Auteur ; D. Philip Whitfield, AuteurCapsule The third complete survey of Golden Eagles in Britain found 442 pairs. Aim To investigate the population size, distribution and breeding success of Golden Eagles in Britain, for comparison with similar surveys in 1982-83 and 1992. Method[...]
Article
Paul F. Haworth, Auteur ; Michael J. McGrady, Auteur ; D. Philip Whitfield, Auteur ; Alan H. Fielding, Auteur ; David R. A. McLeod, AuteurCapsule Home-range of resident pairs of Golden Eagle was usually smaller during a successful breeding season than during winter and during an unsuccessful breeding season. Aims To examine how Golden Eagles use space around their nests with respe[...]
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D. Philip Whitfield, Auteur ; Alan H. Fielding, Auteur ; Mike J. P. Gregory, Auteur ; A. G. Gordon, Auteur ; David R. A. McLeod, Auteur ; Paul F. Haworth, AuteurThe development of commercial forests presents potential threats to large raptors that rely on prey caught in open country. We examined the effect of afforestation of breeding habitat used by a population of Golden Eagles Aquila chrysaetos in Sc[...]
Article
D. Philip Whitfield, Auteur ; Alan H. Fielding, Auteur ; David R. A. McLeod, Auteur ; Paul F. Haworth, Auteur ; Jeff Watson, AuteurConservation strategies have three elements: species protection, site protection and, the most challenging component, conservation in the wider environment. Watson and Whitfield [Watson, J., Whitfield, P., 2002. A conservation framework for the [...]
Article
D. Philip Whitfield, Auteur ; Marc Ruddock, Auteur ; Rhys Bullman, AuteurHuman disturbance can have several adverse effects on wildlife and therefore is increasingly seen as a threat. A common resolution of problems associated with encroaching human activities is to separate them from sensitive wildlife areas by prot[...]
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Sarah R. Hoy, Auteur ; Rachel E. Ball, Auteur ; Xavier Lambin, Auteur ; D. Philip Whitfield, Auteur ; Michael Marquiss, AuteurThe recognition of individual animals is essential for many types of ecological research, as it enables estimates of demographic parameters such as population size, survival and reproductive rates. A popular method of visually identifying indivi[...]
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Richard J. Evans, Auteur ; Jeremy D. Wilson, Auteur ; Arjun Amar, Auteur ; Andrew Douse, Auteur ; Alison MacLennan, Auteur ; Norman Ratcliffe, Auteur ; D. Philip Whitfield, AuteurWhite-tailed Eagles Haliaeetus albicilla became extinct in Britain in 1918 following prolonged persecution. Intensive conservation efforts since the 1970s have included the re-introduction of the species to Britain through two phases of release [...]
Article
Will Cresswell, Auteur ; D. Philip Whitfield, AuteurDans Ibis (150 AUG 2008)Redshanks Tringa totanus that are preyed upon by Sparrowhawks Accipiter nisus at the Tyninghame Estuary, Firth of Forth, Scotland, provide an example of how the starvation-predation risk trade-off results in mortality. In this trade-off, animals[...]
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D. Philip Whitfield, Auteur ; Rab Rae, AuteurSeparation of animals and humans using a protective set-back distance (Minimum Approaching Distance) is a popular tool for conservation managers to promote wildlife-human coexistence. In several cases, Minimum Approaching Distance is based on ho[...]
Article
D. Philip Whitfield, AuteurThis study compared two methods of ageing Dotterel, the 'standard' method that separates first-years from older birds (adults) on primary tip wear and presence/absence of juvenile inner median coverts, and the 'growth bar' method that assumes fi[...]
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Guyonne F. E. Janss, Auteur ; Manuela de Lucas, Auteur ; D. Philip Whitfield, Auteur ; Alfonso Lazo, Auteur ; Miguel Ferrer, Auteur
Article
Dimitris P. Vasilakis, Auteur ; D. Philip Whitfield, Auteur ; Stefan Schindler, Auteur ; Kostantinos S. Poirazidis, Auteur ; Vassiliki Kati, AuteurHarnessing wind energy is seen as an environmentally friendly strategy to combat climate change. However, adverse environmental impacts have come to light for species that are prone to collision with wind turbine blades, such as vultures, leadin[...]
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Will Cresswell, Auteur ; Johan Lind, Auteur ; John L. Quinn, Auteur ; Jeroen Minderman, Auteur ; D. Philip Whitfield, AuteurThe use of metal and colour-rings or bands as a means of measuring Survival, movements and behaviour in birds is universal and fundamental to testing ecological and evolutionary theories. The practice rests on the largely untested assumption tha[...]
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Brett K. Sandercock, Auteur ; Robert Rae, Auteur ; Stuart Rae, Auteur ; D. Philip Whitfield, AuteurThe Broad-billed Sandpiper Calidris falcinellus is an elusive and seldom studied species of wader that breeds in wet fen habitats in the Palearctic taiga. In a 25-year population study from 1995–2019 near Kautokeino, Norway, we investigated the [...]
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Alan H. Fielding, Auteur ; D. Philip Whitfield, Auteur ; David R. A. McLeod, AuteurDespite their environmental benefits in generating electricity without emission of 'greenhouse' gases, wind farms have attracted controversy with regard to their impacts on birds, especially golden eagles Aquila chrysaetos. Evidence from USA stu[...]
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Mike Madders, Auteur ; D. Philip Whitfield, AuteurDans Ibis (148 MAR 2006)Government targets on renewable energy coupled with anthropogenic constraints on development have resulted in a surge in proposals to locate wind farms in upland areas, where they may conflict with the wellbeing of scarce or rare bird species in[...]
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Tim Reid, Auteur ; Sonja Krueger, Auteur ; D. Philip Whitfield, Auteur ; Arjun Amar, AuteurConcerns over CO2 emissions during energy generation and its effect on climate change have led to increases in the use of renewables, such as wind energy. However, there are also serious environmental concerns over this type of energy production[...]
