Small Tortoiseshell at Yarner Wood
Yarner Wood compared with the national indices
This chart shows national fluctuations in abundance (in black) and abundance on this site over time (in red).
|Status on site :||
|Mean count :||
|Maximum count :||
The UKBMS is run by Butterfly Conservation (BC), the
Centre for Ecology and Hydrology (CEH) and the
British Trust for Ornithology (BTO), in partnership with the Joint Nature Conservation
Committee (JNCC), and supported and steered by
Forestry Commission (FC),
(NE), Natural Resources Wales (NRW),
Northern Ireland Environment Agency (NIEA), and
Scottish Natural Heritage (SNH). The UKBMS is indebted to all volunteers who contribute data to the scheme.