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Article
Steven J. Portugal, Auteur ; Laura Sivess, Auteur ; Graham R. Martin, Auteur ; Patrick J. Butler, Auteur ; Craig R. White, AuteurDominant individuals within animal groups will frequently place themselves in the most beneficial position for maximal protection against predation. Higher perches are generally associated with reduced predation risk in birds, so we predicted th[...]
Article
Eli S. Bridge, Auteur ; Jeffrey F. Kelly, Auteur ; Xiangming Xiao, Auteur ; Nyambayar Batbayar, Auteur ; Tseveenmyadag Natsagdorj, Auteur ; Nichola J. Hill, Auteur ; John Y. Takekawa, Auteur ; Lucy A. Hawkes, Auteur ; Charles M. Bishop, Auteur ; Patrick J. Butler, Auteur ; Scott H. Newman, AuteurPopulation connectivity is an important consideration in studies of disease transmission and biological conservation, especially with regard to migratory species. Determining how and when different subpopuladons intermingle during different phas[...]
Article
Scott H. Newman, Auteur ; Nichola J. Hill, Auteur ; Kyle A. Spragens, Auteur ; Daniel Janies, Auteur ; Igor O. Voronkin, Auteur ; Diann J. Prosser, Auteur ; Baoping Yan, Auteur ; Fumin Lei, Auteur ; Nyambayar Batbayar, Auteur ; Tseveenmyadag Natsagdorj, Auteur ; Charles M. Bishop, Auteur ; Patrick J. Butler, Auteur ; Martin Wikelski, Auteur ; Sivananinthaperumal Balachandran, Auteur ; Taej Mundkur, Auteur ; David C. Douglas, Auteur ; John Y. Takekawa, Auteur ; Stephen G. Willis, AuteurA unique pattern of highly pathogenic avian influenza (HPAI) H5N1 outbreaks has emerged along the Central Asia Flyway, where infection of wild birds has been reported with steady frequency since 2005. We assessed the potential for two hosts of H[...]
Article
Craig R. White, Auteur ; David Boertmann, Auteur ; David Grémillet, Auteur ; Patrick J. Butler, Auteur ; Jonathan A. Green, Auteur ; Graham R. Martin, AuteurArctic seas have warmed and sea ice has retreated. This has resulted in range contraction and population declines in some species, but it could potentially be a boon for others. Great Cormorants Phalacrocorax carbo have a partially wettable plum[...]
Article
Behavioural strategies of cormorants (Phalacrocoracidae) foraging under challenging light conditions
Craig R. White, Auteur ; Patrick J. Butler, Auteur ; David Grémillet, Auteur ; Graham R. Martin, AuteurDans Ibis (150 AUG 2008)Diving is indicative of foraging in cormorants (Phalacrocoracidae). We have investigated a range of parameters associated with diving in Great Cormorants Phalacrocorax carbo to provide insight into the bases of cormorant predatory strategies. We[...]
Article
Jonathan A. Green, Auteur ; Ian L. Boyd, Auteur ; Anthony J. Woakes, Auteur ; Nicholas L. Warren, Auteur ; Patrick J. Butler, AuteurWe measured daily energy expenditure (DEE) continuously for a whole year in a free ranging bird, the macaroni penguin Eudyptes chrysolophus. We combined these measurements with concurrently recorded foraging behaviour, and literature information[...]
Article
John Y. Takekawa, Auteur ; Shane R. Heath, Auteur ; David C. Douglas, Auteur ; William M. Perry, Auteur ; Salim Javed, Auteur ; Scott H. Newman, Auteur ; Rajendra N. Suwal, Auteur ; Asad R. Rahmani, Auteur ; Binod C. Choudhury, Auteur ; Diann J. Prosser, Auteur ; Baoping Yan, Auteur ; Yuansheng Hou, Auteur ; Nyambayar Batbayar, Auteur ; Tseveenmayadag Natsagdorj, Auteur ; Charles M. Bishop, Auteur ; Patrick J. Butler, Auteur ; Peter B. Frappell, Auteur ; William K. Milsom, Auteur ; Graham R. Scott, Auteur ; Lucy A. Hawkes, Auteur ; Martin Wikelski, AuteurDans Wildfowl (59 2009)The connectivity and frequency of exchange between sub-populations of migratory birds is integral to understanding population dynamics over the entire species' range. True geese are highly philopatric and acquire lifetime mates during the winter[...]
Article
Steven J. Portugal, Auteur ; Jonathan A. Green, Auteur ; Theunis Piersma, Auteur ; Goetz Eichhorn, Auteur ; Patrick J. Butler, AuteurMany species of waterfowl undergo a post-breeding simultaneous flight feather moult (wing moult) which renders them flightless and vulnerable to predation for up to 4 weeks. Here we present an analysis of the correlations between individual time[...]
Article
Steven J. Portugal, Auteur ; Patrick J. Butler, Auteur ; Jonathan A. Green, Auteur ; Phillip Cassey, AuteurBone is continually undergoing cycles of apposition and resorption referred to as adaptive remodelling. We tested the hypothesis that captive moulting Barnacle Geese (Branta leucopsis) would show adaptive bone mineralisation during the flightles[...]
Article
Graham R. Martin, Auteur ; Craig R. White, Auteur ; Patrick J. Butler, AuteurPredatory diving birds, such as cormorants (Phalacrocoracidae), have been generally regarded as visually guided pursuit foragers. However, due to their poor visual resolution underwater, it has recently been hypothesized that Great Cormorants do[...]
Article
Craig R. White, Auteur ; Graham R. Martin, Auteur ; Patrick J. Butler, AuteurWing-spreading of cormorants (Phalacrocoracidae) is a characteristic and enigmatic aspect of their behavioural repertoire. It has been suggested to have a range of functions including wing-drying, food-warming, and social signalling of foraging [...]
