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Woody vegetation resource changes around selected settlement along aridity gradient in the Kalahari, Botswana
(Elsevier Science Ltd, http://www.elsevier.com/locate/cag, 2002-07-22)
This paper investigated changes in economically important woody vegetation resources around seven settlements located along an aridity gradient in the Kalahari. Available data at different rainfall levels were analysed ...
Looking for progenitors: a molecular approach to finding the origins of an invasive weed
(Kluwer Academic Publishers, http://www.springerlink.com, 2002-11-28)
One of the major problems in determining the origin of invasive species is that often their arrival is unnoticed. Only when population levels increase is their presence noticed but by this time determining the point of ...