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Mapping Lepidoptera biodiversity to inform the management of Oak Processionary Moth - TH0159

The control of Oak Processionary Moth (OPM) with insecticides, such as Bacillus thuringiensis var. kurstaki, has been identified as a threat to Lepidoptera (moth and butterfly) biodiversity and populations. Many of these are scarce and threatened nationally, and include those listed as Section 41 species. At present, OPM is established in London but is spreading outwards. This project aims to develop a tool to help landowners and managers quantify potential threat to inform decision-making processes around OPM control. Butterfly Conservation will use their national moth and butterfly records to build up a picture of level of risk, depending on the presence and rarity of Lepidoptera species whose larvae feed on oak at the time of spraying. Results will initially be outputted as PDF maps for Greater London and surrounding counties, with the potential to develop an interactive online tool.
1. Prepare and analyses species-level data for South-East region from the National Moth Recording Scheme, Butterflies for the New Millennium, and micro-moth datasets.
2. Generate summary composite risk scores for the whole South-east region at 1km resolution. The composite risk score will be formed from scores based on the following attributes: priority level, larval foodplant, larval feeding location and phenology.
3. Develop methods for dissemination of this information to landowners and managers, such as PDF maps and/or an interactive website.
4. Trial these tools as part of a risk-based approach to OPM management in pilot areas.
Time-Scale and Cost
From: 2018

To: 2021

Cost: £13,676
Contractor / Funded Organisations
Butterfly Conservation
Plant Pests and Diseases