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Article
Joanne H. Cooper, Auteur ; Nigel J. Collar, Auteur ; Abdeljalil Bouzouggar, Auteur ; Nick Barton, Auteur ; Louise Humphrey, AuteurThe Moroccan population of the globally endangered Great Bustard Otis tarda is close to extinction. Although it is genetically distinct from the Iberian population, no evidence has been previously available to establish the age of its presence i[...]
Article
David J. T. Douglas, Auteur ; Jessica Waldinger, Auteur ; Zoya Buckmire, Auteur ; Kathryn Gibb, Auteur ; Juan P. Medina, Auteur ; Lee Sutcliffe, Auteur ; Christa Beckmann, Auteur ; Nigel J. Collar, Auteur ; Raymond Jansen, Auteur ; Johannes Kamp, Auteur ; Ian Little, Auteur ; Rob Sheldon, Auteur ; Alberto Yanosky, Auteur ; Nicola Koper, AuteurGrasslands are globally threatened and their biodiversity, including grassland birds, is declining markedly. To inform grassland bird conservation globally, we systematically reviewed threats and conservation actions for grassland birds, extract[...]
Article
Bruktawit A. Mahamued, Auteur ; Paul F. Donald, Auteur ; Nigel J. Collar, Auteur ; Stuart J. Marsden, Auteur ; Paul Kariuki Ndang’ang’a, Auteur ; Mengistu Wondafrash, Auteur ; Yilma Dellelegn Abebe, Auteur ; James Bennett, Auteur ; Simon R. Wotton, Auteur ; Daniel Gornall, Auteur ; Huw Lloyd, AuteurLiben Lark Heteromirafra archeri is a ‘Critically Endangered’ species threatened by the loss and degradation of grassland at the Liben Plain, southern Ethiopia, one of only two known sites for the species. We use field data from nine visits betw[...]
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Nigel J. Collar, Auteur ; Paul F. Donald, Auteur ; Guy M. Kirwan, AuteurTaxonomists now usually recognize 10 extant species of oystercatcher Haematopus, plus the extinct Canary Islands Oystercatcher Haematopus meadewaldoi. Molecular data, however, have recently been used to propose meadewaldoi as either a morph or a[...]
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S. (Bas) van Balen, Auteur ; Nigel J. Collar, Auteur
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Andrew J. Bladon, Auteur ; Paul F. Donald, Auteur ; Samuel E. I. Jones, Auteur ; Nigel J. Collar, Auteur ; Jarso Deng, Auteur ; Galgalo Dadacha, Auteur ; Yilma D. Abebe, Auteur ; Rhys E. Green, AuteurClimate may influence the distribution and abundance of a species through a number of demographic and ecological processes, but the proximate drivers of such responses are only recently being identified. The Ethiopian Bush-crow Zavattariornis st[...]
Article
Robert J. Burnside, Auteur ; Nigel J. Collar, Auteur ; Paul M. Dolman, AuteurFor migratory species, the success of population reintroduction or reinforcement through captive-bred released individuals depends on survivors undertaking appropriate migrations. We assess whether captive-bred Asian Houbara Chlamydotis macqueen[...]
Article
Ian J. Burfield, Auteur ; Stuart H. M. Butchart, Auteur ; Nigel J. Collar, AuteurBirdLife, conservation and taxonomy- Volume 27 Issue 1 - IAN J. BURFIELD, STUART H. M. BUTCHART, NIGEL J. COLLAR
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Sabine M. Hille, Auteur ; Fränzi Korner-Nievergelt, Auteur ; Maarten Bleeker, Auteur ; Nigel J. Collar, AuteurVulture populations are declining steeply worldwide. Vulture 'restaurants' or feeding stations are a tool for maintaining and monitoring numbers, but individual species may be disadvantaged by the effects of carcass distribution, carcass size an[...]
Ouvrage
HBW and Birdlife International Illustrated Checklist of the Birds of the World, Volume 2: Passerines
Joseph Del Hoyo, Auteur ; Nigel J. Collar, Auteur ; David A Christie, Auteur ; Andrew Elliott, Auteur ; Lincoln DC Fishpool, Auteur ; Peter Boesman, Auteur ; Guy M. Kirwan, Auteur | Barcelona : Lynx Edicions | 2016This book is really two works in one. They are a complete checklist whose taxonomy incorporates the most up-to-date information and an exhaustive methodology (Tobias et al. 2010) in an entirely systematic and consistent way. At the same time, it[...]
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Nathaniel N. D. Annorbah, Auteur ; Nigel J. Collar, Auteur ; Stuart J. Marsden, AuteurThe heavily traded Grey Parrot Psittacus erithacus is believed to have undergone rapid population decline, yet there are almost no quantitative data on abundance changes over time from anywhere within its huge range. We reviewed the species’ his[...]
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Devathi Parashuram, Auteur ; Steffen Oppel, Auteur ; Calvin Fenton, Auteur ; Glenford James, Auteur ; James Daley, Auteur ; Gerard Gray, Auteur ; Nigel J. Collar, Auteur ; Paul M. Dolman, AuteurHabitat loss, the primary driver for loss of biodiversity worldwide, is of special concern for species that have a small area of occurrence, such as those restricted to islands. The Forest Thrush Turdus lherminieri is a 'Vulnerable' (VU) species[...]
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Survival rates of captive-bred Asian Houbara Chlamydotis macqueenii in a hunted migratory population
Robert J. Burnside, Auteur ; Nigel J. Collar, Auteur ; Keith M. Scotland, Auteur ; Paul M. Dolman, AuteurAsian Houbara Chlamydotis macqueenii numbers are declining as a result of unsustainable levels of hunting and poaching, with the main conservation response being population reinforcement through the release of captive-bred birds. We assessed the[...]
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Paul M. Dolman, Auteur ; Nigel J. Collar, Auteur ; Keith M. Scotland, Auteur ; Robert J. Burnside, AuteurWhen species face extinction, captive breeding may be appropriate. However, captive breeding may be unsuccessful, while reducing motivation and resources for insitu conservation and impacting wild source populations. Despite such risks, decision[...]
Article
Thomas N. E. Gray, Auteur ; Nigel J. Collar, Auteur ; Peter J. A. Davidson, Auteur ; Paul M. Dolman, Auteur ; Tom D. Evans, Auteur ; Harry N. Fox, Auteur ; Hong Chamnan, Auteur ; Ro Borey, Auteur ; Seng Kim Hout, Auteur ; Robert N. Van Zalinge, AuteurThe Bengal Florican is a 'Critically Endangered' bustard (Otididae) restricted to India, Nepal and Southern Indochina. Fewer than 500 birds are estimated to remain in the Indian subcontinent, whilst the Indochinese breeding population is primari[...]
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Christina Ieronymidou, Auteur ; Nigel J. Collar, Auteur ; Paul M. Dolman, AuteurAnthropogenic habitat change and assisted colonization are promoting range expansions of some widespread species with potential consequences for endemic fauna. The recent colonization of Cyprus by breeding Sardinian Warblers Sylvia melanocephala[...]
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Hugh L. Wright, Auteur ; Bou Vorsak, Auteur ; Nigel J. Collar, Auteur ; Thomas N. E. Gray, Auteur ; Iain R. Lake, Auteur ; Sum Phearun, Auteur ; Hugo J. Rainey, Auteur ; Rours Vann, Auteur ; Sok Ko, Auteur ; Paul M. Dolman, Auteur
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Thomas N. E. Gray, Auteur ; Hong Chamnan, Auteur ; Ro Borey, Auteur ; Nigel J. Collar, Auteur ; Paul M. Dolman, AuteurLow-intensity agro-ecosystems of the Tonle Sap grasslands, Cambodia, support important concentrations of threatened bird species including the largest global population of bengal florican (Houbaropsis bengalensis) (IUCN status Critically Endange[...]
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P. Godfrey C. Jakosalem, Auteur ; Nigel J. Collar, Auteur ; Jennifer A. Gill, AuteurThe largely deforested island of Cebu, Philippines, hosts a forest-dwelling hawk-owl identified in the literature as Ninox philippensis spilonota but which is in fact a Cebu island endemic species, soon to be named. To determine the current dist[...]
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Omaliss Keo, Auteur ; Nigel J. Collar, Auteur ; William J. Sutherland, AuteurA main cause of nestling loss of the 'Critically Endangered' Giant Ibis Thaumatibis gigantea appeared to be mammalian predation. Predator-exclusion devices were added to a randomly selected half of 52 nesting trees, with the other half acting as[...]
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Nigel J. Collar, Auteur ; Jeremy P. Bird, Auteur
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Neil Aldrin D. Mallari, Auteur ; Nigel J. Collar, Auteur ; Philip J. K. Mcgowan, Auteur ; Stuart J. Marsden, AuteurAichi Target 11 of the Convention on Biological Diversity urges, inter alia, that nations protect at least 17 % of their land, and that protection is effective and targets areas of importance for biodiversity. Five years before reporting on Aich[...]
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Martin Dallimer, Auteur ; Martim Melo, Auteur ; Nigel J. Collar, Auteur ; Peter J. Jones, AuteurRecently recognised as specifically distinct, the Principe Thrush Turdus xanthorhynchus is endemic to the island of Principe in the Gulf of Guinea, West Africa. Formerly treated as conspecific with the more abundant T. olivaceofuscus from the ne[...]
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Thomas H. White, Auteur ; Nigel J. Collar, Auteur ; Ron J. Moorhouse, Auteur ; Virginia Sanz, Auteur ; Eric D. Stolen, Auteur ; Donald J. Brightsmith, AuteurWith 28% of the 350 species of parrots considered threatened, numerous conservation efforts have been initiated for these species. Among these, the restoration or establishment of new populations has increasingly relied on reintroductions as a c[...]
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Thomas H. White, Auteur ; Nigel J. Collar, Auteur ; Ron J. Moorhouse, Auteur ; Virginia Sanz, Auteur ; Eric D. Stolen, Auteur ; Donald J. Brightsmith, Auteur
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Joseph A. Tobias, Auteur ; Nathalie Seddon, Auteur ; Claire N. Spottiswoode, Auteur ; John D. Pilgrim, Auteur ; Lincoln D. C. Fishpool, Auteur ; Nigel J. Collar, AuteurSpecies are the fundamental units of biology, ecology and conservation, and progress in these fields is therefore hampered by widespread taxonomic bias and uncertainty. Numerous operational techniques based on molecular or phenotypic data have b[...]
Article
Paul F. Donald, Auteur ; Graeme M. Buchanan, Auteur ; Nigel J. Collar, Auteur ; Yilma Dellelegn Abebe, Auteur ; Merid N. Gabremichael, Auteur ; M. A. Kiragu Mwangi, Auteur ; Paul Kariuki Ndang'ang'a, Auteur ; Claire N. Spottiswoode, Auteur ; Mengistu Wondafrash, AuteurThe Critically Endangered Liben Lark (formerly Sidamo Lark) is known only from the Liben Plain of southern Ethiopia, where rapid grassland deterioration is driving the species towards extinction. Fieldwork on the Liben Plain in May 2009 to asses[...]
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Paul F. Donald, Auteur ; Graeme M. Buchanan, Auteur ; Nigel J. Collar, Auteur ; Yilma Dellelegn Abebe, Auteur ; Merid N. Gabremichael, Auteur ; M. A. Kiragu Mwangi, Auteur ; Paul Kariuki Ndang'ang'a, Auteur ; Claire N. Spottiswoode, Auteur ; Mengistu Wondafrash, Auteur
Article
Claire N. Spottiswoode, Auteur ; Urban Olsson, Auteur ; Michael S. L. Mills, Auteur ; Callan Cohen, Auteur ; Julian E. Francis, Auteur ; Negussie Toye, Auteur ; David Hoddinott, Auteur ; Abiy Dagne, Auteur ; Chris Wood, Auteur ; Paul F. Donald, Auteur ; Nigel J. Collar, Auteur ; Per Alström, AuteurThe African lark genus Heteromirafra is thought to consist of three threatened species inhabiting mid-altitude grasslands, one in South Africa and two in the Horn of Africa. One of the latter, Archer's Lark H. archeri of Somaliland, has not been[...]
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Paul F. Donald, Auteur ; Kai Gedeon, Auteur ; Nigel J. Collar, Auteur ; Claire N. Spottiswoode, Auteur ; Mengistu Wondafrash, Auteur ; Graeme M. Buchanan, AuteurWe attempt to describe and explain the peculiarly restricted distribution of the globally threatened Ethiopian Bush-crow Zavattariornis stresemanni. At a regional scale, models containing only correlates of land cover suggested a far wider distr[...]
