Browsing 1980 Onderstepoort Journal of Veterinary Research, Volume 47, 1980 by Author "Sutherland, B."

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Browsing 1980 Onderstepoort Journal of Veterinary Research, Volume 47, 1980 by Author "Sutherland, B."

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  • Physiological age determination in female Stomoxys calcitrans Linnaeus (Diptera : Muscidae) 
    Sutherland, B.; Steyn, P.J.J.; Bigalke, R.D.; Cameron, Colin McKenzie; Gilchrist, Frances M.C.; Morren, A.J.; Verster, Anna J.M.; Verwoerd, Daniel Wynand; Walker, Jane B. (Published by the Government Printer, Pretoria., 1980)
    The primary sex organs of female Stomoxys calcitrans consist of a single pair of ovaries, each containing 80-100 polytrophic ovarioles. A natural population of these females can be grouped according to age into different ...
  • The temperature preferences of the motile stages of Stomoxys calcitrans Linnaeus (Diptera : muscidae) 
    Sutherland, B.; Steyn, P.J.J.; Bigalke, R.D.; Cameron, Colin McKenzie; Gilchrist, Frances M.C.; Morren, A.J.; Verster, Anna J.M.; Verwoerd, Daniel Wynand; Walker, Jane B. (Published by the Government Printer, Pretoria., 1980)
    When adult Stomoxys calcitrans were exposed to a temperature gradient, 66% of them selected temperatures between 20,1 and 32,5°C. The larval stages preferred temperatures between 19,5 and 33,2°C. Although the differences ...