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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 metadataset describes the effects of biodiversity on response variables of experimental studies published between 1974-2004. Dataset Location: Ecological Archives Methods : Data was extracted from 137 published articles, containing 761 measurments, for analysis within this study to determine the effect of biodiversity loss on variables relevant to agriculture, forestry,...MORE
This dataset catalogs field estimates of net primary productivity for natural and agricultural ecosystems worldwide from approximately 1870-1980. Dataset Location: Ecological Archives Sites Georefferenced: Yes Timespan: 1869-1982 Methods: Field measurements off above-ground NPP were collected from the literature and complied in a standardized fashion. Methodology of field techniques are not...MORE
This web site hosts an on-line repository for remote sensing and aerial photograpy initiated by the U.S. Department of the Interior and the U.S. Geological Survey. Data Location: http://eros.usgs.gov/#/Find_Data Data Available: Aerial Photography, Satellite Imagery, Elevation maps, Land Cover, Digitized Maps Comments: EROS hosts all data retrieved from remote sensing...MORE
Spot-mapping data for birds combined with information on the local vegetation. This includes information on the number and position of singing males and breeding pairs, as well as information on the number of nests and fledglings. Plots vary in scale from 10 hectares (in closed habitats) to 40 hectares (in...MORE