Eur. J. Entomol. 117: 328-342, 2020 | DOI: 10.14411/eje.2020.038

Insect photoperiodism: Seasonal development on a revolving planetReview

David SAUNDERS
21, Leadervale Road, Edinburgh EH16 6PB, Scotland, United Kingdom; e-mail: david59.saunders@mypostoffice.co.uk

This review starts by comparing photoperiodic diapause with non-photoperiodic quiescence in four representative species, paying particular attention to overwintering in Drosophila melanogaster. In the second part it describes dormancy strategies of insects from the equator to the polar regions, addressing topics such as the role of the circadian system in photoperiodic time measurement, latitudinal clines in diapause-related traits, hourglass-like photoperiodic clocks based on dampening circadian oscillators, and the dormancy strategies of insects close to the equator or at high latitudes where seasonal changes in photoperiod are unreliable or absent.

Keywords: Insects, photoperiod, diapause, quiescence, time measurement, latitude, circadian, damping oscillators

Received: June 2, 2020; Revised: July 28, 2020; Accepted: July 28, 2020; Published online: August 10, 2020  Show citation

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SAUNDERS, D. (2020). Insect photoperiodism: Seasonal development on a revolving planet. EJE, 117, Article 328-342. https://doi.org/10.14411/eje.2020.038
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