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Fine scale temperature variation and its role in determining territory occupation date and timing of breeding

Funders: Woodland Trust, Natural England

Summary: We know spring temperature plays an important role in determining the timing of breeding of insectivorous woodland birds; invertebrate emergence and availability is strongly linked to spring temperature. This project is creating a fine scale temperature map of East Dartmoor NNR so we can examine this in more detail. We might expect warmer territories to be occupied first, and to initiate breeding earlier. The temperature data will also contribute to a Heritage Lottery Project on Barbastelle bats; the temperature data will be combined with radio tracking movement data to look at how temperature influences foraging behaviour.