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The significant portion of global terrestrial biodiversity harboured in the mountains is under increasing threat from various anthropogenic impacts. P...
Read moreStreams and riparian zones are highly heterogeneous ecosystems. Their high biodiversity is promoted by variable flow velocities and water depths, stro...
Read moreThe effects of six bracken (Pteridium aquilinum) control treatments applied in combination with a Calluna seeding treatment on the rhizome system of b...
Read moreThe canopy of a Tarchonanthus/Acacia thicket on Kenya grazing land was opened up by a series of controlled burns. Two burns killed >50% of the orig...
Read moreIn field tests with fenuron pellets, Commiphora spp. and broad.leaved shrubs (Maytenus putter. lickioides, Premna oligotricha and Tarchonanthus campho...
Read moreClimate change, in combination with the impacts of land use, will give rise to new opportunities for grassland invasion. This paper reports on the rep...
Read moreA sward of perennial ryegrass cv. S23 grown during 1979-81 was treated on 20 April with 130 kg N/ha as ammonium nitrate doubly labelled with 15N, foll...
Read moreTheoretical considerations indicated that it was possible to increase the precision of estimation of vegetation cover by reducing the number of pins i...
Read moreIn a glasshouse experiment, galvanised iron wires or woven fibre-glass strands placed 3 cm below the soil surface constricted the tap roots of Quercus...
Read moreThe impact of dense stands of the alien invasive species Acacia saligna on the guild structure of indigenous fynbos vegetation was investigated at 3 s...
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