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Small Pearl-bordered Fritillary at Warton Crag Lwt

Indices for Warton Crag Lwt compared with the national indices

Species Log Collated Index Plot

 

This chart shows national fluctuations in abundance (in black) and abundance on this site over time (in red).

Statistics
Status on site : Declining
Mean count : 11.17
Maximum count : 104


The UK Butterfly Monitoring Scheme is organized and funded by Butterfly Conservation (BC), the Centre for Ecology and Hydrology (CEH), the British Trust for Ornithology (BTO), and the Joint Nature Conservation Committee (JNCC). The UKBMS is indebted to all volunteers who contribute data to the scheme.