Search datasets

Displaying 1 - 10 of 18
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 contains twenty years (1990-2010) of tree demography in a permanent sample plot containing 3870 Dipterocarp species in the Pushpagiri Wildlife Sannctuary of India's Western Ghats. Dataset Location: Ecological Archives Site Location: Uppangala Permanant Sample Plots, Pushpagiri Wildlife Sanctuary ( 12°35′N , 75°40′E ) Sampling Frequency: 3-5 years (1990-1993,...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
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 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 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 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 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 follows a lowland tropical rain forest for 17 years in Costa Rica. Dataset Location: Ecological Archives (1983-1993) , Ecological Archives Update (1993-2000) Site Location: La Selva Biological Station, Costa Rica (10 o 26' N, 83 o 59' W) Sites Georefferenced: Yes Timespan: 1983 - 2000 Sampling Frequency: annually...MORE

Pages