Data from: Photoperiod at the larval stage sets the timing of entire annual program in an herbivorous insect
Salis, L. (Creator), van den Hoorn, E. (Creator), Beersma, D. (Creator), Hut, R. (Creator), Visser, M. (Creator), University of Groningen, 22-Aug-2017
In the winter moth, an herbivorous insect with an annual life-cycle, timing of egg-hatching in spring is strongly influenced by temperature and varies from year to year. To investigate whether the phenological variation in egg-hatching date affects subsequent stages, we analysed data on egg-hatching and adult catching date (considered here to be a proxy for adult eclosion date) from our long-term study (1994-2014). Furthermore, we experimentally manipulated the photoperiod experienced by newly hatched larvae and recorded the phenology of their subsequent life-cycle stages.
In the long-term field study, we found that the timing of winter moth egg-hatching in spring varied strongly from year to year. Interestingly, however, the timing of adult eclosion date in winter showed little inter-annual variation. In line with these findings, our experimental data showed that the winter moth shortened the duration of their pupal development when they experienced a late spring photoperiod as a larva, and prolonged pupal development when experiencing early spring photoperiod conditions. The effects of the larval photoperiodic treatments persisted during egg development in the following generation.
The results show that a phenological shift that occurs during an early life-stage is partially compensated during subsequent stages and suggest that the mechanism underlying this compensation is mediated by photoperiod. Winter moths regulated their phenology in such a way that the variation in the egg-hatching stage was not carried over to the next life-cycle stages. This has strong effects on fitness as it (1) ensures the synchronization of adult eclosion during the mating period and (2) is likely to reduce potentially negative fitness consequences of phenological mismatches in egg hatching in the following generation. Overall, these findings stress the importance of understanding phenological carry-over effects to forecast the impact of global change in species with complex life-cycles.
|Date made available||22-Aug-2017|
|Publisher||University of Groningen|
|Temporal coverage||1994 - 2014|
|Geographical coverage||Doorwerth, Hoge Veluwe, Warnsborn, Oosterhout, The Netherlands|
|Access to the dataset||Open|
- seasonal timing, winter moth, photoperiodism, carry-over effects, insects, complex life-cycles, anticipatory maternal effects, phenology, Operophtera brumata
Keywords on Datasets
- Hut, R. A. & Visser, M. E., Jan-2018, In : Functional Ecology. 32, 1, p. 171-180 10 p.
Research output: Contribution to journal › Article › Academic › peer-review