Radiation sterilization and the effect of multiple mating of females in Glossina austeni

TL;DR: The chapter focuses on the understanding of the mechanisms of sperm competition, which are essential for interpreting nonrandom patterns of paternity and for predicting the types of adaptations that sperm competition can generate.

TL;DR: Using the model to assess the fertilization rate ( eggs/min) achieved by males with varying copula durations in the present population and theoretical populations where the duration is both greater and smaller than at present, it can be predicted that selection would favour a value close to that observed.

TL;DR: Variation in copulation duration and sperm precedence is consistent with male placement and detection of a spermatophore that acts as a temporary mating plug and suggests that those male C. whitei which successfully defend large aggregations of females reduce sperm waste and competition by preferentially transferring sperm to females that have not mated recently.

TL;DR: Over the whole dose range the doseaction curve does not fit a single-hit type of action, though this is approximated at low doses, and at higher doses of X-rays both rates increase.

TL;DR: Preliminary findings suggest that a method has been found which should enable a research worker to keep his own small colony of tsetse and achieve an excellent survival rate for trypanosome transmission experiments.

TL;DR: The morsitans in the habitat of swynnertoni were in poorer condition, and survived less well, than in the previous year, andScanty data suggest that the rate of wing-fray during the rainy season is not very different, and females, especially in later life, fray their wings more slowly than the males.