1 For more information on the Habitat Structure Assessment protocol,
please review the
Habitat Structure Assessment Manual. Additional
Habitat Structure Assessment forms, figures, and appendices may be viewed or downloaded from The Institute for Bird Populations'
MAPS Materials web page.
2 Further information on the USGS - NPS National Vegetation Classification Standard (NVCS) is available on the
USGS - NPS Vegetation Mapping Program home page.
3 MAPS stations typically have one, two, or three habitat types; rarely there may be as many as five habitat types at a station. The
dominant habitat is the one occupying the largest proportion of the station (regardless of where nets are located). The
subdominant habitat
is the one occupying the second largest proportion of the station.
4 Region codes identify
the MAPS Region in which the station is located: AK = Alaska Region,
B&AC = Boreal & Arctic Canada Region, NW = Northwest Region, SW = Southwest Region, NC = North-central
Region, SC = South-central Region, NE = Northeast Region, SE = Southeast Region. See the
NBII MAPS Home Page for a map of the Regions.
5 Location codes are unique four-character codes identifying a national
forest, national park, military installation, or other location where
a single station or a cluster of stations is located and is run
by a single operator (often with many assistants).
6 Station codes are four-character codes used to identify
stations and are unique within a location. A station is defined as
a discrete study area consisting of a fixed number of net sites.