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The Portal Project is a long-term ecological study that has been monitoring small mammal community responses to climate and experimental manipulation of dominant rodent species since 1977 in southeastern Arizona. Ecological Level: Community Biome: Desert Location: Southeastern Arizona (Lat/Long) Spatial Scale of data: Each plot is .25 ha. There are...MORE
This dataset describes 12 years of vascular plant composition at the Tallgrass Prairie Reserve in Oklahoma measured at multiple spatial scales at a local level. Dataset Location: Ecological Archives Site Location: Tallgrass Prairie Preserve, Osage County, Oklahoma (36.73 o - 36.90 o N, 96.32 o - 96.49 o W) Sites...MORE
This dataset describes thirty years (1980-2009) of vegetation recovery from volcanic events on Mount St. Helens established from 92 permanent sampling plots and accounting for 85 species. Dataset Location: Ecological Archives Site Location: Mount St. Helens Sites Georefferenced: Yes Timespan: 1980-2009 Methods: Circular plots (250m 2 ) are established based...MORE
242 vertebrate species are described within this datset including information on life history traits, species distribution maps and phylogenetics. Dataset Location: Ecological Archives Site Location: Australian Wet Tropics, northeastern Queensland (between -16.5 - 19.5 o N) Sites Georefferenced: Output includes GPS layers Methods: Life history attributed were acquired from individual...MORE
This dataset descibes apporximately 50 years of sagebrush vegetatation in 26 permanent 1m 2 quadrats. Dataset Location: Ecological Archives Site Location: U.S. Sheep Experiment Station, Dubois, Idaho Sites Georefferenced: No Timespan: 1923-1957 (most years), 1973 Sampling Frequency: Annually Methods: 26 permanent quadrats were established in sheep paddocks with grazed and...MORE
This dataset describes first-flowering dates of native and non-native plant species from 1910 -1961 in Fargo, North Dakota. Dataset Location: Ecological Archives Site Location: North Dakota State University (46 o 53.423 N, 96 o 47.886 W), Bluesem Prairie Nature Preserve (46 o 51.458 N, 96 o 28.211 W) Sites Georefferenced:...MORE
This dataset follows endemic mint species in Florida to observe the population demography as well as response to fire. Dataset Location: Ecological Archives Site Location: Archibold Biological Station, Florida (27 o 10' 50" N, 81 o 21' 00" W) Sites Georefferenced: Yes Timespan: 1988-2004 Sampling Frequency: Monthly - Quarterly Methods:...MORE
This dataset follows coyotes, lagomorphs, and rodents from 1962-1993 in Idaho and Utah. Dataset Location: Ecological Archives Site Location: Idaho National Engineering and Environmental Laboratory, Idaho; Curlew Valley, Utah Sites Georefferenced: No Timespan: 1962-1993 Sampling Frequency: biannually (spring & fall) Methods: Rodents were trapped with a 1 M-4 snap trap...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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