Spacial requirements for butterflies

[Small-MDC, Dave]

Good day,
	 As a resource manager, responsible for the management of early 
successional habitats in the 56,000 acre  Quabbin Watershed in Central 
Massachusetts, I have been interested in determining some criteria for patch 
size in forest openings. These opening may either be left to regenerate to 
forest or managed as permanent meadow. We have been gathering information on 
the use of these habitats by various bird species, but I am interested in 
references to check out related to opening sizes needed for populations of 
various butterfly species found in the region.
                                                  
Thanks in advance,

Dave Small
Forest and Park Regional Coordinator
MDC Quabbin