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Article
Juliet A. Vickery, Auteur ; John W. Mallord, Auteur ; William M. Adams, Auteur ; Alison E. Beresford, Auteur ; Christiaan Both, Auteur ; Will Cresswell, Auteur ; Ngone Diop, Auteur ; Steven R. Ewing, Auteur ; Richard D. Gregory, Auteur ; Catriona A. Morrison, Auteur ; Fiona J. Sanderson, Auteur ; Kasper Thorup, Auteur ; Rien E. van Wijk, Auteur ; Chris M. Hewson, AuteurThe global long-term decline of migrant birds represents an important and challenging issue for conservation scientists and practitioners. This review draws together recent research directed at the Afro-Palaearctic flyway and considers its impli[...]
Article
Juliet A. Vickery, Auteur ; John W. Mallord, Auteur ; William M. Adams, Auteur ; Alison E. Beresford, Auteur ; Christiaan Both, Auteur ; Will Cresswell, Auteur ; Ngone Diop, Auteur ; Steven R. Ewing, Auteur ; Richard D. Gregory, Auteur ; Catriona A. Morrison, Auteur ; Fiona J. Sanderson, Auteur ; Kasper Thorup, Auteur ; Rien E. van Wijk, Auteur ; Chris M. Hewson, AuteurThe global long-term decline of migrant birds represents an important and challenging issue for conservation scientists and practitioners. This review draws together recent research directed at the Afro-Palaearctic flyway and considers its impli[...]
Article
Bukola D. A. Braimoh-Azaki, Auteur ; Susan J. Cunningham, Auteur ; Will Cresswell, AuteurConstant nest attentiveness, which benefits avian embryos, and body maintenance activities (e.g., foraging trips) by incubating parents are mutually exclusive activities. To balance these, parents must schedule the time spent on and off their ne[...]
Article
Joy Akpanta Ishong, Auteur ; Joseph K Afrifa, Auteur ; Soladoye B Iwajomo, Auteur ; Justus P Deikumah, Auteur ; Samuel T Ivande, Auteur ; Will Cresswell, AuteurAlmost no systematic monitoring of bird population trends occurs in West Africa, despite rapid human population increase, habitat change, and climate change, making conservation planning problematic. We monitored bird population trends using con[...]
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Robert Patchett, Auteur ; Alexander N. G. Kirschel, Auteur ; Joanna Robins King, Auteur ; Patrick Styles, Auteur ; Will Cresswell, AuteurFemale song is widespread across bird species yet rarely reported. Here, we report the first observations and description of female song in the Cyprus Wheatear Oenanthe cypriaca and compare it to male song through the breeding season. Twenty-fiv[...]
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Emma Blackburn, Auteur ; Malcolm Burgess, Auteur ; Benedictus Freeman, Auteur ; Alice Risely, Auteur ; Arin Izang, Auteur ; Sam Ivande, Auteur ; Chris Hewson, Auteur ; Will Cresswell, AuteurCapsule: There is a substantial gain in precision and accuracy of geolocator locations when using a light stalk.Aims: Light stalks or tubes increase the accuracy of geolocators when tracking migrant birds because they reduce potential shading of[...]
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Emma Blackburn, Auteur ; Malcolm Burgess, Auteur ; Benedictus Freeman, Auteur ; Alice Risely, Auteur ; Arin Izang, Auteur ; Sam Ivande, Auteur ; Chris Hewson, Auteur ; Will Cresswell, AuteurThe flexibility for migrant land birds to be able to travel long distances rapidly without stopovers, and thus to cross wide inhospitable areas such as deserts and oceans, is likely to be a major determinant of their survival during migration. W[...]
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Chima J. Nwaogu, Auteur ; B. Irene Tieleman, Auteur ; Kwanye Bitrus, Auteur ; Will Cresswell, AuteurBergmann’s rule, defined as the tendency for endotherms to be larger in colder environments, is a biophysical generalization of body size variation that is frequently tested along latitudinal gradients, even though latitude is only a proxy for t[...]
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Chima J. Nwaogu, Auteur ; B. Irene Tieleman, Auteur ; Will Cresswell, AuteurIn some tropical birds, breeding seasonality is weak at the population level, even where there are predictable seasonal peaks in environmental conditions. It therefore remains unclear whether individuals are adapted to breeding at specific times[...]
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Emma Blackburn, Auteur ; Malcolm Burgess, Auteur ; Benedictus Freeman, Auteur ; Alice Risely, Auteur ; Arin Izang, Auteur ; Sam Ivande, Auteur ; Chris Hewson, Auteur ; Will Cresswell, AuteurDans Ibis (159(4) 2017)The spatial scale of non-breeding areas used by long-distance migrant animals can vary from specific, relatively small non-breeding areas for each independent breeding population (high connectivity) to a distribution over a large non-breeding ar[...]
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Alice Risely, Auteur ; Emma Blackburn, Auteur ; Will Cresswell, AuteurAfro-Palaearctic migrants are declining to a greater degree than other European species, suggesting that processes occurring in Africa or on migration may be driving these trends. Constraints on food availability on the wintering grounds may con[...]
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Sam T. Ivande, Auteur ; Will Cresswell, AuteurThe specificity of an animal's habitat requirements will determine its ability to deal with anthropogenic climate and habitat change. Migratory birds are thought to be particularly vulnerable to such change, but theory predicts that they should [...]
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Emma Blackburn, Auteur ; Will Cresswell, AuteurWintering Northern Wheatears Oenanthe oenanthe in the Sahel region of Northern Nigeria held small (approximately 70 m diameter) distinct territories during the study period, and territory size did not differ between adult and first winter birds.[...]
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Marina Xenophontos, Auteur ; Will Cresswell, AuteurPopulation dynamics of annually breeding bird species depend crucially on productivity, and so this variation can help us understand the causes of declines in migrant birds. We investigated variation in annual productivity 2010–2012 in the Cypru[...]
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Marina Xenophontos, Auteur ; Will Cresswell, AuteurMany populations of European migrant bird species are declining and this may be driven by survival rates; however, there are few studies that can estimate true survival rates. Cyprus wheatears Oenanthe cypriaca are an endemic migrant that winter[...]
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Chima Josiah Nwaogu, Auteur ; Will Cresswell, AuteurAvian migration has been shown to be a life history strategy for surviving environmental resource variability, but it requires increased body reserves for long distance flight. Fat reserves make excellent energy stores for barrier crossing, wher[...]
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Emma Blackburn, Auteur ; Will Cresswell, AuteurThe decision for a migratory animal to be site faithful in its non-breeding season has profound implications for migratory connectivity, resilience to winter habitat loss and population dynamics through carry-over effects on future breeding succ[...]
Article
Emma Blackburn, Auteur ; Will Cresswell, AuteurFor migratory birds, it is necessary to estimate annual and overwinter survival rates, identify factors that influence survival, and assess whether survival varies with age and sex if we are to understand population dynamics and thus inform cons[...]
Article
Alice Risely, Auteur ; Emma Blackburn, Auteur ; Will Cresswell, AuteurAfro-Palaearctic migrants are declining to a greater degree than other European species, suggesting that processes occurring in Africa or on migration may be driving these trends. Constraints on food availability on the wintering grounds may con[...]
Article
Alice Risely, Auteur ; Emma Blackburn, Auteur ; Will Cresswell, AuteurAfro-Palaearctic migrants are declining to a greater degree than other European species, suggesting that processes occurring in Africa or on migration may be driving these trends. Constraints on food availability on the wintering grounds may con[...]
Article
Tammy E. Davies, Auteur ; Rohan H. Clarke, Auteur ; John G. Ewen, Auteur ; Ioan R. A. Fazey, Auteur ; Nathalie Pettorelli, Auteur ; Will Cresswell, AuteurUnprecedented rates of deforestation on tropical islands are threatening high numbers of endemic species, and empirical evidence is needed to better understand the implications of changes in land-use on biodiversity and to guide conservation act[...]
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Christopher J. Butler, Auteur ; Will Cresswell, Auteur ; Andrew Gosler, Auteur ; Christopher Perrins, AuteurCapsule The reproductive rate of Rose-ringed Parakeets in the UK was higher in 2001-2003 than previously estimated.Aim To measure reproductive rate and the factors affecting this in Rose-ringed Parakeets in England during a period of rapid expan[...]
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Matthew Stevens, Auteur ; Danae Sheehan, Auteur ; Jared Wilson, Auteur ; Graeme Buchanan, Auteur ; Will Cresswell, AuteurCapsule Two widespread censuses of already degraded woodland in the Sahel in Northern Nigeria separated by five years (2002 and 2007) showed relatively small further changes in tree and bird density. Aims To determine how change in tree density [...]
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Will Cresswell, Auteur ; Jared M. Wilson, Auteur ; Juliet Vickery, Auteur ; Peter Jones, Auteur ; Sue Holt, AuteurHabitat loss in the Sahel region of West Africa has been pronounced, due to anthropogenic effects and (potentially) climate change. Although strong links have been found between conditions in the Sahel and subsequent breeding populations of cert[...]
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Shiiwua Manu, Auteur ; Inaoyom Sunday Imong, Auteur ; Will Cresswell, AuteurThe mountains of south-eastern Nigeria are a western extension of the Cameroon mountain range, which is classified as an endemic bird area (EBA). Unlike its eastern extension in Cameroon, most of the ornithological surveys in the western extensi[...]
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Miriam J. Brandt, Auteur ; Will Cresswell, AuteurKnowledge of a species' movement behaviour and habitat choice is a prerequisite for assessing its ecological requirements to plan successful conservation strategies. Little is known about these factors in the Rock Firefinch, a recently described[...]
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Eduardo Garcia-Del-Rey, Auteur ; Will Cresswell, AuteurWe describe the density, breeding and foraging ecology of the Berthelot's Pipit (Anthus berthelotii), an endemic passerine to the Atlantic islands, in the semi-arid coastal scrub of Tenerife. Furthermore, we analyse the effects of temperature an[...]
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Chima J. Nwaogu, Auteur ; Maurine W. Dietz, Auteur ; B. Irene Tieleman, Auteur ; Will Cresswell, AuteurBirds should store body reserves if starvation risk is anticipated; this is known as an 'interrupted foraging response'. If foraging remains unrestricted, however, body mass should remain low to limit the predation risk that gaining and carrying[...]
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Marina Xenophontos, Auteur ; Emma Blackburn, Auteur ; Will Cresswell, AuteurLong-distance migratory flights with multiple stop-overs, multiple wintering sites, and small-scale connectivity in Afro-Palearctic migrants are likely to increase their vulnerability to environmental change and lead to declining populations. He[...]
Article
Philip W. Atkinson, Auteur ; William M. Adams, Auteur ; JOOST Brouwer, Auteur ; Graeme Buchanan, Auteur ; Robert A. Cheke, Auteur ; Will Cresswell, Auteur ; Chris M. Hewson, Auteur ; Mark F. Hulme, Auteur ; Adam Manvell, Auteur ; Danaë K. Sheehan, Auteur ; Robert D. S. Small, Auteur ; William J. Sutherland, Auteur ; Juliet A. Vickery, AuteurThe Sahel in West Africa is a major wintering area for many western Palearctic migrants. The breeding populations of many of these have declined over the past 50 years. However, there have been few intensive field studies on migrant ecology in t[...]
