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SOIL carbon and nitrogen in five contrasting biomes of South Africa exposed to different land uses
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: A.J. Mills --- Department of Soil Science, South Africa M.V. Fey --- Department of Soil Science, South AfricaStocks of soil C to a depth of 50 cm in untransformed, indigenous veld ranged from 21 t ha-1 in karoo to 168 t ha-1 in thicket and stocks of N ranged from 3.41 ha-1 in karoo to 12.8 t... -
Inselbergs persist as islands of diversity in a heavily grazed rangeland mosaic at the nexus of three arid biomes
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: Laetitia C Piers --- Department of Biodiversity and Conservation Biology, South Africa M Igshaan Samuels --- Department of Biodiversity and Conservation Biology, South Africa Mmoto L Masubelele --- Cape Research Centre, South African National Parks, South Africa Lesego Khomo --- Environmental Sciences Department, South AfricaInselbergs are regarded as ‘islands of diversity’ due to the high number of plant species present and level of endemism. They also act as natural sources of fodder for livestock and thus risk becoming homogenised in a heavily grazed rangeland... -
Vulnerability of birds to contaminated water sources in the Karoo region of South Africa
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Alan TK Lee --- FitzPatrick Institute of African Ornithology, South Africa Carolynne Geary --- Purposefully Lost Conservation Centre, South Africa Dale R Wright --- BirdLife South Africa, South Africa W Richard J Dean --- FitzPatrick Institute of African Ornithology, South AfricaThe Karoo is a unique region in South Africa in terms of its ecological processes and endemic species. Large areas are needed to maintain viable populations of nomadic birds that follow erratic rainfall events and subsequent food and nesting resources,... -
Impact of pine plantation establishment on soil properties and fungal communities of natural forests in Zimbabwe
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Luke Jimu --- , Zimbabwe Innocent W Nyakudya --- , Zimbabwe Charles Magogo --- , Zimbabwe Admore Mureva --- , ZimbabweGlobally, large expanses of land were cleared for the establishment of exotic pine and eucalypt tree plantations for commercial purposes. In Zimbabwe, these plantations resulted in the clearance of over 120 000 ha of native vegetation, especially miombo woodlands that... -
Biogeographical patterns of grasses (Poaceae) indigenous to South Africa, Lesotho and Eswatini
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: Marike Trytsman --- , South Africa Francuois L Muller --- , South Africa Craig D Morris --- , South Africa Abraham E van Wyk --- , South AfricaThe ecological and economical importance of African grasses in sustaining animal production prompted studies to quantify the wealth of grass genetic resources indigenous to southern Africa. Plant collection and occurrence data were extracted from two southern African datasets, BODATSA and... -
Occurrence of Dalbergia obovata in grasslands of urban nature reserves within a metropolitan municipality: Is it an encroaching woody species?
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: Terry Stewart --- , South Africa Peter F Scogings --- , South Africa Himansu Baijnath --- , South AfricaThe occurrence of Dalbergia obovata, which is typically associated with forests, in grasslands within conservation areas in a metropolitan municipality was investigated to assess whether it was encroaching and what the possible causes might be. Relevant legislation has not regarded... -
Warming promotes growth of seedlings of a woody encroacher in grassland dominated by C4 species
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: Lusanda Ncisana --- , South Africa Ntuthuko R Mkhize --- , South Africa Peter F Scogings --- , South AfricaLittle is known of warming effects on growth and defence of woody seedlings that potentially invade grasslands. We predicted that elevated temperatures would increase growth and spine length of Vachellia sieberiana seedlings growing (1) with or without grass in the...