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The North American Breeding Bird Survey (1966-present) consists of data on the diversity and abundance of summer bird assemblages at approximately 5000 sites across the continental U.S. and Canada. Sampling began in 1966 and many sites have time-series that are at least 20 years long.MORE
This dataset compares avian body sizes with mating characteristics for 3769 species. Dataset Location: Ecological Archives Site Location: Western Palearctic, North America, Africa, Austrailia, New Zealand, Antarctica Sites Georeferenced: No Methods: Data was gathered from major ornithologial handbooks, suplemented by authors personal data. Behavioral scores are described within the metadata...MORE
This web site hosts information about the entire fossil record, including information about fossil collections, individual plants and animals, taxonomic groups, references to publications, stratigraphic units, time scales, and time intervals. Data Location: paleobiodb.org Data Available: collection, occurrence, specimen records, taxonomic names/opinion, measurements of specimens Comments: Tools are available on...MORE
This website and database hosts records of fossil pollen, charcoal, and mammal assemblages, as well as plant macrofossils, largely from North America, but also globally, throughout the Pleiocene-Quaternary (and Anthropocene). Also included are chronological controls that allow the use of the records through time from the last 5 million years...MORE
The USGS Gap Analysis Program (GAP) is delineating species range and predicted distribution maps for more than 2,000 species that occur within the continental US as well as Alaska, Hawaii, Puerto Rico, and the U.S. Virgin Islands (we will make these maps and datasets available as they are completed). Our...MORE