منابع مشابه
Phylogeography of the genus Xenopus in southern Africa
Xenopus laevis (Daudin, 1802) has been the subject of numerous studies but is taxonomically poorly understood. Part of the Cytochrome b gene in mitochondrial DNA was sequenced from 50 individual Xenopus from three currently recognised species, taken from 28 localities in southern Africa, and from an outgroup of two West African X. epitropicalis. Phylogenetic analyses of these data reveal well-s...
متن کاملSpecies delineation in the tree pathogen genus Celoporthe (Cryphonectriaceae) in southern Africa.
The genus Celoporthe was first described when C. dispersa was discovered in South Africa associated with dieback and cankers on trees in the Myrtales. Four additional species were recently described from Eucalyptus and Syzygium cumini in China as well as S. aromaticum and Eucalyptus in Indonesia. Inoculation trials have shown that all Celoporthe species, including those that have not been found...
متن کاملTaxonomy of the water beetle genus Limnebius Leach in southern Africa (Coleoptera: Hydraenidae).
The southern African species of the water beetle genus Limnebius Leach, 1815, are revised. Eleven new species are described, based on the examination and databasing of 6,201 specimens from 96 localities/events. Male genitalia are illustrated, and high resolution habitus images of the holotypes are provided. Distribution maps are provided for the eleven species now known from southern Africa, in...
متن کاملRabies in southern Africa.
The first confirmed outbreak of rabies in Africa, believed to have followed the importation of an infected dog from England in 1892, occurred in the eastern Cape Province of South Africa, and was brought under control in 1894. An unconfirmed epidemic of rabies in dogs occurred in western Zambia in 1901. By the following year the disease had apparently spread along a major trade route, to cause ...
متن کاملReview: Cervical cancer in Southern Africa: The challenges Cervical cancer in Southern Africa: The challenges
Introduction Cervical cancer remains the second most common cancer among women worldwide and the most common cancer amongst black African women in South Africa. Annually there are 500 000 cases of cervical cancer worldwide, of which the mortality is about 50%. This is largely due to presentation at a late stage. Lack of availability of treatment facilities may be another factor contributing to ...
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ژورنال
عنوان ژورنال: South African Journal of Botany
سال: 1990
ISSN: 0254-6299
DOI: 10.1016/s0254-6299(16)31115-2