oa Journal of the Entomological Society of Southern Africa - Some aspects of the geographical distribution of insect pests

Volume 22, Issue 1
  • ISSN : 0013-8789



The distribution of animals and plants has important theoretical implications and indeed provided Darwin and Wallace with some of their most valuable evidence for evolution. When species of economic importance are under consideration, questions concerning the spread of organisms raise more practical issues and come within the sphere of interest of the applied biologist. As the problems involved in the distribution of injurious insects have always interested me and have been rarely discussed in the literature, I have chosen this topic as the subject of my address. I propose to discuss these problems along rather broad lines, and to exemplify my theme mainly by insects of economic interest in Southern Africa.

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