Search Results - "Lehman, Clarence"

Soil carbon sequestration accelerated by restoration of grassland biodiversity by Yang, Yi, Tilman, David, Furey, George, Lehman, Clarence

“…Agriculturally degraded and abandoned lands can remove atmospheric CO 2 and sequester it as soil organic matter during natural succession. However, this…”
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Carbon-Negative Biofuels from Low-Input High-Diversity Grassland Biomass by Tilman, David, Hill, Jason, Lehman, Clarence

“…Biofuels derived from low-input high-diversity (LIHD) mixtures of native grassland perennials can provide more usable energy, greater greenhouse gas…”
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Priority-flood: An optimal depression-filling and watershed-labeling algorithm for digital elevation models by Barnes, Richard, Lehman, Clarence, Mulla, David

“…Depressions (or pits) are areas within a digital elevation model that are surrounded by higher terrain, with no outlet to lower areas. Filling them so they are…”
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Ecology of the Anthropocene signals hope for consciously managing the planetary ecosystem by Lehman, Clarence, Loberg, Shelby, Wilson, Michael, Gorham, Eville

“…Human populations have grown to such an extent that our species has become a dominant force on the planet, prompting geologists to begin applying the term…”
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Biodiversity, Stability, and Productivity in Competitive Communities by Lehman, Clarence L., Tilman, David

“…Three markedly different models of multispecies competition—one mechanistic, one phenomenological, and one statistical—all predict that greater diversity…”
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Human-Caused Environmental Change: Impacts on Plant Diversity and Evolution by Tilman, David, Lehman, Clarence

“…Human-caused environmental changes are creating regional combinations of environmental conditions that, within the next 50 to 100 years, may fall outside the…”
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Diversity and Productivity in a Long-Term Grassland Experiment by Tilman, David, Reich, Peter B., Knops, Johannes, Wedin, David, Mielke, Troy, Lehman, Clarence

“…Plant diversity and niche complementarity had progressively stronger effects on ecosystem functioning during a 7-year experiment, with 16-species plots…”
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Phylogenetic community structure in Minnesota oak savanna is influenced by spatial extent and environmental variation by Willis, Charles G., Halina, Marta, Lehman, Clarence, Reich, Peter B., Keen, Adrienne, McCarthy, Shawn, Cavender-Bares, Jeannine

“…The relative importance of environmental filtering, biotic interactions and neutral processes in community assembly remains an openly debated question and one…”
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Plant Diversity and Ecosystem Productivity: Theoretical Considerations by Tilman, David, Lehman, Clarence L., Thomson, Kendall T.

“…Ecosystem processes are thought to depend on both the number and identity of the species present in an ecosystem, but mathematical theory predicting this has…”
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Energy potential of biomass from conservation grasslands in Minnesota, USA by Jungers, Jacob M, Fargione, Joseph E, Sheaffer, Craig C, Wyse, Donald L, Lehman, Clarence

“…Perennial biomass from grasslands managed for conservation of soil and biodiversity can be harvested for bioenergy. Until now, the quantity and quality of…”
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The Reflective Plant Breeding Paradigm: A Robust System of Germplasm Development to Support Strategic Diversification of Agroecosystems by Runck, Bryan C., Kantar, Michael B., Jordan, Nicholas R., Anderson, James A., Wyse, Donald L., Eckberg, James O., Barnes, Richard J., Lehman, Clarence L., DeHaan, Lee R., Stupar, Robert M., Sheaffer, Craig C., Porter, Paul M.

“…ABSTRACT Over the last half‐century, crop breeding and agronomic advances have dramatically enhanced yields in temperate summer‐annual cropping systems. Now,…”
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Impact of simian immunodeficiency virus infection on chimpanzee population dynamics by Rudicell, Rebecca S, Holland Jones, James, Wroblewski, Emily E, Learn, Gerald H, Li, Yingying, Robertson, Joel D, Greengrass, Elizabeth, Grossmann, Falk, Kamenya, Shadrack, Pintea, Lilian, Mjungu, Deus C, Lonsdorf, Elizabeth V, Mosser, Anna, Lehman, Clarence, Collins, D Anthony, Keele, Brandon F, Goodall, Jane, Hahn, Beatrice H, Pusey, Anne E, Wilson, Michael L

“…Like human immunodeficiency virus type 1 (HIV-1), simian immunodeficiency virus of chimpanzees (SIVcpz) can cause CD4+ T cell loss and premature death. Here,…”
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Diversity‐Stability Relationships: Statistical Inevitability or Ecological Consequence? by Tilman, David, Lehman, Clarence L., Bristow, Charles E.

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Entrepreneurs, chance, and the deterministic concentration of wealth by Fargione, Joseph E, Lehman, Clarence, Polasky, Stephen

“…In many economies, wealth is strikingly concentrated. Entrepreneurs--individuals with ownership in for-profit enterprises--comprise a large portion of the…”
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Habitat destruction and the extinction debt by Tilman, David, May, Robert M, Lehman, Clarence L, Nowak, Martin A

“…A model that explains multispecies coexistence in patchy habitats and that predicts that their abundance may be fleeting is described. Even moderate habitat…”
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Diversity, productivity and temporal stability in the economies of humans and nature by Tilman, David, Polasky, Stephen, Lehman, Clarence

“…Recent advances in ecology are of great potential relevance to economists. Here we present two ecological models of mechanisms of competition and coexistence,…”
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Does metabolic theory apply to community ecology? It's a matter of scale by Tilman, David, HilleRisLambers, Janneke, Harpole, Stan, Dybzinski, Ray, Fargione, Joe, Clark, Chris, Lehman, Clarence

“…The Metabolic Theory of Ecology presented by Brown et al. (2004) is discussed. Brown et al. (2004) have provided a new window through which one can ponder…”
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Biomass production potential of grasslands in the oak savanna region of Minnesota, USA by Gillitzer, Peter A., Wyse, Donald L., Sheaffer, Craig C., Taff, Steven J., Lehman, Clarence C.

“…Biomass harvested from grasslands formerly used for forage production or set aside for conservation has been identified as a potential source of bioenergy…”
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An efficient assignment of drainage direction over flat surfaces in raster digital elevation models by Barnes, Richard, Lehman, Clarence, Mulla, David

“…In processing raster digital elevation models (DEMs) it is often necessary to assign drainage directions over flats—that is, over regions with no local…”
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Long-term carbon sequestration in North American peatlands by Gorham, Eville, Lehman, Clarence, Dyke, Arthur, Clymo, Dicky, Janssens, Joannes

“…Peatland ecosystems store about 500–600 Pg of organic carbon, largely accumulated since the last glaciation. Whether they continue to sequester carbon or…”
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