• Animals in parks database 

      Spear, Dian (2012-03-07)
      A database of animals in national parks in South Africa, their potential impacts and possible pathways of introduction. There is severity of impact information for a subset of species considered to be those species with ...
    • Global Invasive Alien Species Indicator Database 

      Spear, Dian; Kleynhans, Elizabeth; Marais, Elrike (2012-03-07)
      Database of invasive alien species (including plants, mammals, birds, fish and amphibians) present in 57 countries, with references for impact and spread information.