Results 1 to 10 of about 448 (122)

William John Burchell: The multi-skilled polymath

open access: yesSouth African Journal of Science, 2012
On the bicentenary of William John Burchell's sojourn and journey in southern Africa, we review his contribution to science in the region. In November 1810, Burchell arrived in Cape Town and, in mid-1811, he set off on a 4-year, 7000-km journey of ...
Roger Stewart, Brian Warner
doaj   +7 more sources

William John Burchell, Botanist. Part II. Burchell in South Africa

open access: yesJournal of South African Botany, 1941
(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
openaire   +4 more sources

Carotenoid content in the fry of African sharptooth catfish (Clarias gariepinus Burchell) [PDF]

open access: yesActa Ichthyologica et Piscatoria, 1994
Using column and thin layer chromatography, carotenoid contents were determined in the African sharptooth catfsh (Clarias gariepinus Burchell).
B. Czeczuga, B. Kłyszejko
doaj   +3 more sources

Eponyms associated with the nomenclature of the recent species of rhinoceros

open access: yesPachyderm, 2021
Since 1758, a total of 16 eponyms have been described to honour explorers and taxonomists for the recent species of rhinoceros. This paper presents short biographies and the circumstances of the description of these names used in zoological nomenclature.
Kees Rookmaaker
doaj   +1 more source

Histone Methylases and Demethylases Regulating Antagonistic Methyl Marks: Changes Occurring in Cancer

open access: yesCells, 2022
Epigenetic regulation of gene expression is crucial to the determination of cell fate in development and differentiation, and the Polycomb (PcG) and Trithorax (TrxG) groups of proteins, acting antagonistically as complexes, play a major role in this ...
Joyce Taylor-Papadimitriou   +1 more
doaj   +1 more source

Clarias gariepinus Burchell 1822

open access: yes, 2023
Clarias gariepinus Burchell, 1822 [N]—North African catfish; Sfamnun matzui Taxonomy. Original description: Silurus (Heterobranchus) gariepinus Burchell, 1822: 425, fig. on p. 445 [Vaal River, at Smidtsdrift, above confluence with Riet River, Cape Province, South Africa (28°42’10”S, 24°04’29”E); neotype: SAIAB 520; neotype evidently selected by Bruton &
Çiçek, Erdoğan   +4 more
openaire   +3 more sources

Analecta Veterinaria | Volumen 32 | Número 2

open access: yesAnalecta Veterinaria, 2012
Artículos de Investigación/Research articles - Relación entre parámetros ultrasonográficos y edad gestacional en la gata doméstica. Relationship between ultrasonographic measurements and gestational age in the queen | García Mitacek MC, Praderio RG ...
Facultad de Ciencias Veterinarias::http://voc.sedici.unlp.edu.ar/node/47693::600
doaj   +6 more sources

The black-necked grebe Podiceps nigricollis. A new bird record for the Kruger National Park

open access: yesKoedoe: African Protected Area Conservation and Science, 1976
The avifauna of the Kruger National Park (KNP) was described in detail by Kemp (1974). However, species new to the list are bound to turn up occasionally.
A. C. van Bruggen
doaj   +1 more source

L'échinococcose des artiodactyles sauvages de la République Centrafricaine : existence probable d'un cycle lion-phacochère

open access: yesRevue d’Elevage et de Médecine Vétérinaire des Pays Tropicaux, 1980
Les auteurs signalent la présence simultanée, dans la zone cynégétique de l'Est de la République Centrafricaine, de phacochères atteints d'hydatidose larvaire et d'un lion porteur de nombreux Taenia échinocoques qui pourraient représenter une souche d ...
M. Graber, J. Thal
doaj   +1 more source

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