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UK Butterfly Monitoring Scheme

The Butterfly Monitoring Scheme (BMS) was set up in 1976 to provide information on changes in the abundance of butterflies at selected monitored sites throughout the United Kingdom. The BMS has now merged with Butterfly Conservation's co-ordination of 'independent' transects. The resulting UKBMS dataset is an important resource for understanding changes in insect populations. The ECN terrestrial sites form part of the BMS.

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