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Article
A. B. Makhado, Auteur ; R. J. M. Crawford, Auteur ; M. P. Dias, Auteur ; B. M. Dyer, Auteur ; T. Lamont, Auteur ; P. Pistorius, Auteur ; P. G. Ryan, Auteur ; L. Upfold, Auteur ; H. Weimerskirch, Auteur ; R. R. Reisinger, AuteurDemographic parameters of wild animals are often closely associated with their foraging distribution and behaviour, and understanding these attributes can assist in identifying causes of population changes. The Indian Yellow-nosed Albatross (Tha[...]
Article
P. G. Ryan, Auteur
Article
P. G. Ryan, Auteur ; C. Bento, Auteur ; C. Cohen, Auteur ; J. Graham, Auteur ; V. Parker, Auteur ; C. Spottiswoode, AuteurWe report the current status of birds at the Namuli Massif, northern Mozambique. Despite being the only known locality for the Namuli Apalis Apalis lynesi and the nominate race of the Dapplethroat Arcanator orostruthus, the mountain is very litt[...]
Article
P. G. Ryan, Auteur ; C. L. Moloney, AuteurInaccessible Island, Tristan do Cunha, supports two colour morphs of Tistan Buntings, Nescispiza (a.) acunhae, Wilkins' Buntings, N. (wilkinsi) dunnei, and interspecific hybrids between Tristan and Wilkins' Buntings. Breeding takes place in the [...]
Article
P. G. Ryan, Auteur ; I. Sinclair, Auteur ; C. Cohen, Auteur ; M. S. L. Mills, Auteur ; C. N. Spottiswoode, Auteur ; R. Cassidy, AuteurThe western Angola Endemic Bird Area has 14 range-restricted species. Little is known about the conservation status of the region's birds due to the civil war that has raged in Angola for the last 27 years. The greatest diversity of restricted-r[...]
Article
S. L. Petersen, Auteur ; P. G. Ryan, Auteur ; D. Gremillet, AuteurThe African Penguin Spheniscus demersus (Vulnerable) formed three new colonies during the 1980s, two on the South African mainland (Stony Point and Boulders) and one on Robben Island. One of the mainland colonies, at Boulders, Simon's Town, is i[...]
Article
L. Pichegru, Auteur ; P. G. Ryan, Auteur ; R. van Eeden, Auteur ; T. Reid, Auteur ; D. Gremillet, Auteur ; R. Wanless, AuteurIndustrial fishing can profoundly alter marine environments, and no-take zones are an important tool to achieve sustainable fishing and re-establish ecosystem integrity. However, the potential benefits for vagile species such as top predators ar[...]
Article
P. G. Ryan, Auteur ; C. N. Spottiswoode, Auteur
Article
M. S. L. Mills, Auteur ; P. G. Ryan, AuteurLong-line fishing mortality poses a significant threat to many large procellariiform seabirds. To date, estimates of impacts have concentrated on lower survival rates, largely ignoring the costs to fecundity resulting from disruption of breeding[...]
Article
P. G. Ryan, Auteur
Article
R. J. Cuthbert, Auteur ; P. Visser, Auteur ; H. Louw, Auteur ; P. G. Ryan, AuteurContext. Introduced house mice (Mus musculus) are a serious predator of seabird chicks at Gough Island, resulting in declining populations of several threatened species. This has prompted the preparation of plans to eradicate mice from Gough and[...]
Article
P. G. Ryan, Auteur
Article
P. G. Ryan, Auteur ; J. Cooper, Auteur ; J. P. Glass, AuteurTristan Albatross Diomedea [exulans] dabbenena is the most genetically distinct of the five taxa that form the Wandering Albatross superspecies, and has been Listed as Endangered. It breeds only on Gough and Inaccessible Islands in the Tristan d[...]
Article
Y. Ropert-Coudert, Auteur ; D. Gremillet, Auteur ; H. Gachot-Neveu, Auteur ; S. Lewis, Auteur ; P. G. Ryan, Auteur
Article
P. G. Ryan, AuteurA total of 393 seabirds from nine species killed by longline fishing in South African waters around the Prince Edward Islands during summer 1996-97 were sexed, measured, and their body fat levels and primary moults scored. Males of Whitechinned [...]
Article
P. G. Ryan, Auteur ; D. Wright, Auteur ; G. Oatley, Auteur ; J. Wakeling, Auteur ; C. Cohen, Auteur ; T. L. Nowell, Auteur ; R. C. K. Bowie, Auteur ; V. Ward, Auteur ; T. M. Crowe, AuteurThe taxonomy of, and phylogenetic relationships among, African canaries typically assigned to the genus Serinus sensu lato (including the putative genera Alario, Pseudochloroptila, Serinops, Ochrospiza, Dendrospiza and Crithagra) were investigat[...]
Article
P. G. Ryan, Auteur ; H. K. Marshall, Auteur
