West Marin conservationist Bob Berner is one of three citizens the Board of Supervisors appointed on Tuesday to a committee that will oversee an annual audit of Measure A expenditures, which support parkland and farm conservation easements. The committee, comprised of five community members and two parks and open space commissioners, will determine at the end of each fiscal year if those funds were distributed in accordance with the ordinance, which voters approved in 2012.…