Index
Canadian
BCRs
Download
ArcInfo
export file
Download
ArcInfo
Projection file Return
to
NABCI
Main Page |
Bird Conservation Regions:
A Framework for the
Conservation of
North American Birds

Detailed
Descriptions of Canadian BCRs
Bird Conservation Regions (BCRs)
are part of the North American Bird Conservation Initiative (NABCI). The
purpose of NABCI is to ensure the long-term health of North America’s
native bird populations through joint ventures among governments,
non-governmental organizations, and the citizens of Mexico, the United
States and Canada. BCRs are ecologically defined units that provide a
consistent spatial framework for bird conservation across North American
landscapes. By employing broad scale units that are ecologically
meaningful to bird populations – rather than arbitrary political units
– conservation efforts can be tailored to support groups of species
throughout the heart of their range, e.g., grassland-dependent birds
within a BCR dominated by grassland habitat.
BCRs are being used to help
assign "conservation priority" scores for bird species. Each
BCR, regardless of internal political boundaries, will have its own
unique list of "priority" species. Species contained on a
given BCR list will be ranked by conservation importance according to a
standardized set of criteria determined by partners from Mexico, the
United States and Canada. Derived BCR lists of priority species will
help guide conservation activities throughout the continent. With
partners from all three countries utilizing a common spatial framework,
and a shared priority-setting tool, the potential for increased
efficiency and conservation effectiveness is great.
|
Note
for GIS users:
A compressed ArcInfo
export file of North American BCRs is available for
downloading (approx. 5 MB). This file is compatible with ArcInfo
and ArcView (as well as other GIS programs supporting the e00
format). ArcView users should use the Import71 utility that is
packaged with ArcView to access the BCR coverage. The coverage
is stored in geographic coordinates. Click
here to download an ArcInfo projection file containing the
parameters required to transform the BCR coverage from
geographic coordinates to projected coordinates (Lambert Equal
Area Azimuthal projection). The Lambert projection was used in
the maps shown here because it preserves shape and area
properties for features covering large expanses of latitude,
e.g., North America. This projection is recommended for
calculating area measurements, e.g., BCR area, provincial area.
|
|