No detection of seed transmission of citrus tatter leaf virus in ‘Meyer’ lemon

Journal of Plant Diseases and Protection - Citrus tatter leaf virus (CTLV), a strain of apple stem grooving virus, is a virus of citrus that is of commercial importance for trifoliate orange...     

Mammals of the Kammanassie Mountains,Southern Cape Province

The mammal fauna of the Kammanassie Mountain State Forest Reserve and Mountain Catchment Area was censused in the high-rainfall southeastern sector and low-rainfall northwestern sector from 2-12 February, 1979. Collecting yielded 287 specimens of 17 species of small mammals, while the presence of a further 16 species of larger mammals was confirmed. Mean trapping success was low (2,0%) which reflects the low density of most species. Of the 10 species of small mammals collected in the southeastern sector Acomys subspinosus and Otomys irroratus were abundant, while Rhabdomys pumilio, Praomys verreauxi and Myosorex varius were common; the other five species collected were rare. In the northwestern sector the species composition and relative density of each differed. Here Aethomys namaquensis was abundant, R. pumilio common, and five other species (including A. subspinosus and O. irroratus) rare. Few carnivores occur. Stomach samples of collected specimens yielded information on feeding habits; species vary considerably in their diet. Twenty-four species of both large and small mammals occur in the southeastern part, and 25 in the northwestern sector; 17 species are common to both.     

Ant species richness of fynbos and forest ecosystems in the southern Cape

The ant fauna in fynbos and forest habitats in the southern Cape are compared. There is no significant difference in ant species richness between the two undisturbed habitat types, and the only two species common to both are Acantholepis capensis and Camponotus maculatus. The degree of Hakea sericea infestation in the fynbos negatively affected ant species richness. Ant species richness in the Afromontane forest decreased from the drier to the wetter sites. The aggressive alien ant species, Iridomyrmex humilis, has not invaded natural areas to any great extent.