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Overview of Vertebrate Animal Data
NatureServe Explorer provides comprehensive conservation
status, taxonomic, and distribution information for
vertebrate animal species native to the United States
and Canada in the taxonomic groups shown in the table
below (all vertebrates except marine fishes). All
of these species have been classified according to
major references or recent literature (see Classification
of Vertebrates and Invertebrates), and most regularly
occurring species have been assigned a global conservation
status rank (a number of accidentally occurring birds
and undescribed species included have not yet been
ranked). National status under the U.S. Endangered
Species Act and the Committee on the Status of Endangered
Wildlife in Canada are provided where applicable.
This information is continually reviewed and updated
in NatureServe Central Databases in order to reflect
the latest taxonomic treatments, ongoing inventory
efforts, and new status assessments. NatureServe
Explorer is updated periodically from the NatureServe
Central Databases to reflect these changes.
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