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…dry valleys are among the most extreme deserts in the world. The perennially ice-covered lakes, ephemeral streams, and extensive areas of soil within the valleys are subject to low temperatures,…

…globally, while concurrently addressing fundamental ecological questions to explain grassland dynamics in a changing world. This award reflects NSF’s statutory mission and has been deemed worthy of support through evaluation…

…worldwide. Researchers will use intermediate fire return treatments too ask whether observed shrub encroachment under intermediate fire intervals represents a new stable state. Restoration studies will test fundamental ecology theories…

…climate, altering the key drivers of ecological processes in grasslands worldwide, Konza research is increasingly used to address critical global change issues. In this proposal, core Konza experiments and datasets…

…grazing and climatic regimes. As a result of this complexity, and because grazing and fire regimes are managed in grassland systems worldwide, data from the Konza Prairie LTER program have…

9810220 Robertson Agricultural activities worldwide are carried out through a combination of biological and chemical management practices. The Kellogg Biological Station (KBS) Long-Term Ecological Research program has been conducting research…

…Chihuahuan Desert, which is typical of many other drylands around the world. The project builds on studies started in 1915 by the U.S. Department of Agriculture. That early research has…

9411975 Foster Forest ecosystems worldwide are changing in response to direct and indirect human activities. These present a significant challenge requiring interpretation of the driving variables across wide temporal and…

…and why boreal forests respond as they do to a warmer world is important for predicting both regional and global changes over the next century. This Long Term Ecological Research…