Sequential allocation of offspring sexes in the hyperparasitoid wasp, Dendrocerus carpenteri

Article Abstract:

Many parasitoid species produce definite offspring sex ratios by laying male and female eggs in fixed sequences, during a single oviposition bout. The effect of order and quality of the host on the sex allocation of offspring is analyzed in a solitary hyperparasitoid wasp, Dendrocerus carpenteri. Female offspring are produced if the first host is of good quality; while a male offspring is produced, if the host was of low quality. The second offspring is of the opposite sex, irrespective of the host quality.

Analysis, Behavior, Sex ratio, Sex determination, Genetic, Sex determination (Genetics), Solitary wasps

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Appetitive olfactory learning in Drosophila larvae: Effects of repetition, reward strength, age, gender, assay type and memory span

Article Abstract:

Associate olfactory learning in larval Drosophila is analyzed, using a reciprocal conditioning assay. The result provides a basis for future investigations into the cellular and molecular underpinnings of appetitive olfactory learning in larval Drosophila.

Germany, Science & research, Psychological aspects, Genetic aspects, Drosophila, Rhinencephalon, Olfactory pathway

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