Insect photoperiodism: effects of temperature on the induction of insect diapause and diverse roles for the circadian system in the photoperiodic response

摘要: This review considers the effects of temperature on insect diapause induction and photoperiodic response, includes constant temperature, cycles, pulses steps in daily light–dark darkness light, all with reference to various circadian-based “clock” models. Although it is a comparative survey, concentrates two species, flesh fly Sarcophaga argyrostoma its pupal parasite Nasonia vitripennis, which possess radically different mechanisms, although both are based upon circadian system. Particular attention given thermoperiod low high conjunction cycle, treatments that suggest S. argyrostoma “measures” night length external coincidence type. However, N. vitripennis responds seasonal changes photoperiod an internal device involving “dawn” “dusk” oscillators. Other species may show properties coincidence. precepts have been well formulated supported experimentally, those for remain obscure.