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Global Change and the Ecology of Cities
Urban areas are hot spots that drive environmental change at multiple scales. Material demands of production and human consumption alter land use and cover, biodiversity, and hydrosystems locally toExpand
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An Ecosystem in Transition: Causes and Consequences of the Conversion of Mesic Grassland to Shrubland
Abstract Woody plant expansion is one of the greatest contemporary threats to mesic grasslands of the central United States. In this article, we synthesize more than 20 years of research to elucidateExpand
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The Keystone Role of Bison in North American Tallgrass Prairie
Your use of the JSTOR archive indicates your acceptance of JSTOR's Terms and Conditions of Use, available at http://www.jstor.org/page/info/about/policies/terms.jsp. JSTOR's Terms and Conditions ofExpand
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Relationships between leaf area index and Landsat TM spectral vegetation indices across three temperate zone sites
Abstract Mapping and monitoring of leaf area index (LAI) is important for spatially distributed modeling of vegetation productivity, evapotranspiration, and surface energy balance. Global LAIExpand
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Assessing the Rate, Mechanisms, and Consequences of the Conversion of Tallgrass Prairie to Juniperus virginiana Forest
We assessed the determinants and consequences of the expansion of Juniperus virginiana L. (red cedar) populations into central US grasslands using historical aerial photos and field measurements ofExpand
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Interannual variability in primary production in tallgrass prairie: climate, soil moisture, topographic position, and fire as determinants of aboveground biomass
From 1975 to 1993, aboveground net primary production (NPP) at the Konza Prairie Research Natural Area in NE Kansas varied from 179 g/m2 to 756 g/m2. Across a variety of sites, NPP was significantlyExpand
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Expansion of Woody Plants in Tallgrass Prairie: A Fifteen-year Study of Fire and Fire-grazing Interactions
Abstract Temporal changes in the abundance of trees and a common shrub, Cornus drummondii, were quantified for 15 y (1981–1996) in seven tallgrass prairie watersheds in Northeast Kansas. Woody plantExpand
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The Keystone Role of Bison in North American Tallgrass Prairie Bison increase habitat heterogeneity and alter a broad array of plant, community, and ecosystem processes
39 Throughout the history of Great Plains grasslands, North American bison (Bos bison, also known as Bison bison; Jones et al. 1992) and other large herbivores were abundant and conspicuousExpand
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Intra-annual rainfall variability and grassland productivity: can the past predict the future?
Precipitation quantity has been shown to influence grassland aboveground net primary productivity (ANPP) positively whereas experimental increases in of temporal variability in water availabilityExpand
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Interactive Effects of Fire, Bison (Bison bison) Grazing and Plant Community Composition in Tallgrass Prairie
-Fire and native large herbivore grazing were two important influences on the structure and function of North American grasslands. In 1988 and 1989 the influence of fire regime on grazing patterns ofExpand
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