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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
The FIADB contains community information for sites throughout forested lands of the US and its territories. There are three stages of sampling, which affects the type of data available for any given site: Phase 1 consists of remote sensing for stratification and identification of forested land. Phase 2 [Forest Inventory...MORE
Bird Abundances at Hubbard Brook (1969-2010) and on three replicate plots (1986-2000) in the White Mountain National Forest. Dataset Location: http://hubbardbrook.org/data/dataset.php?id=81 Site Location: Hubbard Brook Experimental Forest, White Mountain National Forest, West Thornton, New Hampshire, USA Spatial Scale of data: a total of four 10-hectare plots Timespan: 1969-2010 Sampling Frequency:...MORE
Over 22 years, Alwyn H. Gentry collected data from 226 sites on six continents. Gentry and his collaborators collected all plants with stem diameters equal to or exceeding 2.5 cm diameter at breast height (dbh) along ten 2 x 50 m transects, totaling 0.1 hectare at each site. Ecological Level:...MORE
This dataset profiles allometric relationships of fruit trees using 3-D mapping, including one apple, two mango, two rubber, and one walnut. Dataset Location: Ecological Archives Site Location: France (apple, walnut) and Thailand (mango, rubber) Sites Georefferenced: Yes Sampling Frequency: Once Methods: Leaf location and orientation were measured using an electromagnetic...MORE
This dataset follows painted turtles ( Chrysemys picta ) and records the nesting behavior and depredation. Dataset Location: Ecological Archives Site Location: Island in the Mississippi River; South Potter's Marsh, Thomson Causeway, Thomson, Illinois (41o 57' N, 90o 07' W) Sites Georefferenced: No Timespan: 1989 - 2006 Sampling Frequency: Hourly...MORE
This dataset follows the canopy dynamics of an old growth forest in northern Michigan. Dataset Location: Ecological Archives Site Location: Dukes Research Natural Area, Hiawatha National Forest, Michigan (46 o 02' N, 87 o 09' W) Sites Georefferenced: No Timespan: 1935 - 2004; stem mapping starts 1989 Sampling Frequency: various,...MORE
This dataset uses a forest community to assess the effects of scale on plant biodiversity as well as the effect of a huricane disturbance. Dataset Location: Ecological Archives Site Location: Oosting Natural Area, Duke Forest, North Carolina (79.057 o W, 35.976 o N) Sites Georefferenced: No Timespan: 1989-1998 Sampling Frequency:...MORE
This dataset contains maps of land cover patterns across the conterminous United States. Dataset Location: Ecological Archives Site Location: Lower 48, United Stated Sites Georeffereneced: Yes Timespan: 1991-1993 Methods: Images were collected from Landsat Thematic Mapper at a 30 m resolution and classified to land cover type and spatial filters...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

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