Description: Conserved Lands contains conservation lands ownership boundaries at 1:24,000 scale for Maine land in federal, state, municipal and non-profit ownership with easements. State, county, town, and coast boundary data were obtained from MEGIS town boundary dataset METWP24. 1:24,000 US Geological Survey (USGS) digital line graph data was used for hydrography and transportation features. Where state, county, and town boundaries were coincident with property boundaries, the coincident features were taken from METWP24. Where hydrography, roads, railroads and power-lines were coincident with property boundaries, the coincident features were taken from 1:24,000 digital line graph data. The ownership lines do not represent legal boundaries nor are the ownership lines a survey. Conserved Lands is an inventory of approximate property boundaries.
Copyright Text: Department of Agriculture, Conservation and Forestry, Bureau of Parks and Lands, Land Use Planning Commission, Department of Inland Fisheries and Wildlife, State Planning Office, The Nature Conservancy, New England Forestry Foundation, Maine private land trusts, US Park Service, US Fish and Wildlife, Maine municipal towns, Appalachian Mountain Club
Description: Extensive field surveys began in 1993 to identify, map, and document use of feeding and roosting areas for shorebirds. Polygon boundaries have been modified by the Maine DEP to align with the state 1:24,000 coastline. Polygons have been modified by Maine Department of Inland Fisheries & Wildlife to include 100 ft and 250 ft disturbance protection zones around feeding and roosting sites, respectively, and to better align habitat boundaries with natural features based on high resolution, low tide imagery from Maine DMR. Areas of extensive development were clipped from the 250 ft. disturbance protection zones around roosting areas.
Copyright Text: Maine Department of Inland Fisheries and Wildlife
Description: This layer represents Inland Waterfowl / Wading bird Habitat (IWWH), a Significant Wildlife Habitat defined under Maine's Natural Resources Protection Act (NRPA; http://www.maine.gov/dep/blwq/docstand/nrpapage.htm). IWWHs with a high or moderate rating meet the Significant Wildlife Habitat definition and are protected under NRPA. Low-rated IWWHs are NOT included in this layer because they do not meet the definition and are not protected under NRPA. Boundaries and attributes of polygons in organized townships were updated in 2008 by MDIFW staff using recent (2001-2007), high-resolution (<=1 m), color orthoimagery. For most polygons, multiple images from different years and seasons were used. Polygons in unorganized townships were mapped by MDIFW regional staff in the 1990s from lower-resolution orthoimagery, various wetland data sets, and field visits or via an automated process developed by Heather Rustigian and William Krohn (USGS Biological Resources Division) using statewide digital NWI (National Wetlands Inventory) data, aerial imagery, and hydrology data. Each IWWH boundary includes a 250-foot upland zone around the wetland perimeter. Upland zones were edited to exclude areas of intensive development, slivers crossing major roads into non-wetland habitat, and shorelines >250 ft from a vegetated, non-forested wetland on a Great Pond. Changes to polygon boundaries and IWWH ratings are occasionally made based on a field visit by an MDIFW regional biologist. The last such modification was made 2012-08-22.
Copyright Text: Maine Department of Inland Fisheries and Wildlife (MDIFW) Wildlife Resource Assessment Section, Habitat Group; MDIFW Wildlife Management Section, Regional staff; Heather L. Rustigian and William B. Krohn, University of Maine, Maine Cooperative Fish and Wildlife Research Unit (for polygons mapped in unorganized townships) .