For more information on the Habitat Structure Assessment protocol,
please review the Habitat Structure Assessment Manual
Habitat Structure Assessment forms, figures, and appendices may be viewed or downloaded from The Institute for Bird Populations' MAPS Materials
Further information on the USGS - NPS National Vegetation Classification Standard (NVCS) is available on the USGS - NPS Vegetation Mapping Program
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.
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.
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).
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.