STATUS OF NORTHERN BROWN ARGUS ARICIAARTAXERXES AND SMALL PEARL-BORDERED FRITILLARY BOLORIA SELENE IN THE YORKSHIRE DALES NATIONAL PARK 2002-2007

摘要

Two species of butterfly, the Northern Brown Argus Aricia artaxerxes and Small Pearl-bordered Fritillary Boloria selene, were categorised in 2000 as priority species for conservation in Nature in the Dales, the Local Biodiversity Action Plan (LBAP) for the Yorkshire Dales National Park (YDNP). Species Action Plans (SAPs) were produced detailing the conservation actions required to achieve the primary aims of each plan, namely to maintain the populations of Northern Brown Argus and Small Pearl-bordered Fritillary in the YDNP (YDNPA, 2000). A review of the trends and status of these LBAP priority species and the condition of their habitats in the YDNP is being undertaken (Court & Whitaker, 2009 in press; Court & Ellis, 2009 in press) and this paper summarises the current status of Northern Brown Argus and Small Pearl-bordered Fritillary in the YDNP.