Summary
The impact of climatic warming on the synchrony of insect and plant phenologies was modelled in the case of winter moth (Operophtera brumata) and Sitka spruce (Picea sitchensis) in the Scottish uplands. The emergence of winter moth larvae was predicted with a thermal time requirement model and the budburst of Sitka spruce was predicted from a previously published model (Cannell and Smith 1983) based on winter chilling and thermal time. The date of emergence of winter moth larvae was predicted to occur earlier under climatic warming but the date of budburst of Sitka spruce was not greatly changed, resulting in decreased synchrony between larval emergence and budburst. The general question of how a change of climate might affect phenological synchrony and insect abundance is discussed.
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Dewar, R.C., Watt, A.D. Predicted changes in the synchrony of larval emergence and budburst under climatic warming. Oecologia 89, 557–559 (1992). https://doi.org/10.1007/BF00317163
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DOI: https://doi.org/10.1007/BF00317163