Zobrazeno 1 - 10
of 93
pro vyhledávání: '"W. R. J. Dean"'
Autor:
W. R. J. Dean
Publikováno v:
Psyche: A Journal of Entomology, Vol 96, Iss 1-2, Pp 123-130 (1989)
Externí odkaz:
https://doaj.org/article/00a0156729234f538e8ffabc08fbea90
Autor:
W. R. J. Dean, S.J. Milton
Publikováno v:
South African Journal of Botany. 121:210-215
The invasion of Cactaceae into semi-arid and arid ecosystems in South Africa is of conservation concern, particularly those species that produce juicy fruit that attract avian frugivores. Bird-dispersed Bilberry Cactus (Myrtillocactus geometrizans) i
Autor:
W. R. J. Dean
Publikováno v:
African Zoology; Vol 10, No 2 (1975); 217-219
(1975). Tyto Alba Prey in South West Africa and the Northern Cape. Zoologica Africana: Vol. 10, No. 2, pp. 217-219.
Autor:
W. R. J. Dean, Colleen L. Seymour
Publikováno v:
Austral Ecology. 35:581-592
Land use management practices often change habitat structure, which in turn influence diversity and the composition of floral and faunal assemblages. In the southern Kalahari, southern Africa, heavy grazing after above-average rainfall has lead to bu
Autor:
Şerban Procheş, Suzanne J. Milton, D. M. Iponga, Colleen L. Seymour, John R. U. Wilson, W. R. J. Dean, David M. Richardson
Publikováno v:
Journal of Ecology. 95:648-661
postdoctoral funding from Stellenbosch University. German Ministerium fur Bildung und Wissenschaft (BMBF) under project number 01C0024 (BIOTA – southern Africa) and the Gordon Sprigg Scholarship. DST-NRF Centre of Excellence at the Percy FitzPatric
Autor:
W. R. J. Dean, Frank D. Steinheimer
Publikováno v:
Zootaxa. 1387:1-25
A comprehensive list of all avian type specimens in the Angolan collections of Otto Schütt and Major Friedrich Wilhelm Alexander von Mechow housed in the Museum für Naturkunde Berlin (ZMB) is given for the new avian taxa originally described by Cab
Publikováno v:
Journal of Tropical Ecology. 22:723-726
Over the last few decades a rapid and extensive conversion of tropical forests to agricultural land has taken place resulting in mosaics of fragmented forest patches, pastures and farmland. While the effects of forest fragmentation on biodiversity ha
Publikováno v:
Archives of Natural History. 33:159-171
A number of bird specimens, including at least 53 type specimens, were collected by C. J. Andersson (or credited to him as the collector) mainly in Namibia, but also in Angola, Botswana and South Africa, between 1850 and July 1867. Although much of t
Autor:
W. R. J. Dean, Florian Jeltsch, Matthias C. Wichmann, S. M. Huttunen, Kirk A. Moloney, Jana A. Eccard, E. Eskelinen
Publikováno v:
Journal of Arid Environments. 64:604-615
Recent extensive harvesting of large, often dead Acacia trees in arid savanna of southern Africa is cause for concern about the conservation status of the arid savanna and its animal community. We mapped vegetation and nests of the Black-tailed Tree
Autor:
J. B. Williams, W. R. J. Dean
Publikováno v:
Transactions of the Royal Society of South Africa. 59:79-91
Birds inhabit all deserts, an unusual observation because they are mainly diurnal, non-fossorial, and have the highest mass-specific metabolism of all vertebrates. Many of the “adaptations” of bird...