Lonchaea ragnari

Lonchaea ragnari   -  The large birch lance-fly

This species is considered as a flagship for saproxylic insects which occur in  ancient boreal birch woodland. Most woodland types have Species Action Plan species - for example inclusion of the aspen hoverfly has done a huge amount to focus attention on the importance of boreal aspen stands. Mature or over mature birch woods in the Scottish highlands are a neglected resource and are in need of futher attention, protection and management.  This species is important both in UK and European terms

It might be possible to tell how much birch woodland there is in Scotland but there are no estimates of the area of  “high quality” old birch stands.  There are many saproxylic insects primarily associated with ancient boreal birch woodland and these will benefit from an increased focus on this habitat type. Several rare or restricted species of beetle, flies and moth also utilise these ancient birches.

Work required

determining the location of key populations in Scotland.Research into the autecology and life ragnari%20small.jpghistory of this species.Knowledge about the insect`s life history and requirements needs to be translated into management advice and action.

Survey is needed to establish the extent and condition of these ancient birchwoods and  to find any new sites for Lonchaea ragnari, monitoring is needed to understand the status of the species at existing sites.  This data is needed to allow reporting against success criteria.




                              Lonchaea ragnari  - female

Posted on Wednesday, July 18, 2007 by Registered CommenterADMIN | Comments17 Comments | References9 References