A plan has been in the works to buy and preserve land in Palm Beach County’s uppermost areas. County commissioners voted 6-0 to buy more land for conservation during a meeting on Tuesday afternoon. It is the most recent effort to expand land preservation through the acquisition of parcels bought by the county from an area known as Palm Beach Heights, which is part of the Pal-Mar Ecosite, a region between Palm Beach and Martin County. “It’s a part of a large ecological greenway that stretches from just west of the Atlantic Ocean to just east of Lake Okeechobee and provides a nice wetland and upland habitat for a wide variety of native plants and animals,” said Deborah Drum, the Palm Beach County Environmental Resource Management Department director. The portion of land belonging to Palm Beach County is 715 acres.