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Showing items 1 through 9 of 5.
  1. Library Resource
    Journal Articles & Books
    December, 2010
    United States of America

    What landscapes best represent the land uses and land covers (LU/LC) of the continental United States? Would the set include a cornfield? A forest? A backyard? Combining principles of landscape ecology and computer science, we identified a small set of “exemplar landscapes”, representing distinct LU/LC pattern types of the conterminous US. We first partitioned the 1992 US National Land Cover Dataset into 193 705 landscapes, and quantified patterns with standard measures of LU/LC composition and configuration.

  2. Library Resource
    Journal Articles & Books
    December, 2010

    Many carbon dioxide (CO₂) emission‐reduction strategies currently under consideration rely on terrestrial carbon (C) sequestration to offset substantial proportions of CO₂ emissions. We estimated C sequestration rates and potential land areas for a diverse array of land‐cover changes in the Upper Midwest of the US, a “best case” region for this study because of its relatively modest CO₂ emissions and the large areas of cropland potentially available for conversion.

  3. Library Resource
    Journal Articles & Books
    December, 2010

    Many ecosystems are influenced by disturbances that create specific successional states and habitat structures that species need to persist. Estimating transition probabilities between habitat states and modeling the factors that influence such transitions have many applications for investigating and managing disturbance‐prone ecosystems. We identify the correspondence between multistate capture–recapture models and Markov models of habitat dynamics.

  4. Library Resource
    Journal Articles & Books
    December, 2010

    Environmental and ecological research has long been characterized as operating along a continuum, with “basic” – representing “investigator‐initiated” research – at one end and “applied” – representing “mission‐initiated” research – at the other. While federal agency science programs ideally occupy points along this continuum, the resulting science has not always been relevant to solving environmental problems.

  5. Library Resource
    Journal Articles & Books
    December, 2010

    Spatially organized distribution patterns of species and communities are shaped by both autogenic processes (neutral mechanism theory) and exogenous processes (niche theory). In the latter, environmental variables that are themselves spatially organized induce spatial structure in the response variables. The relative importance of these processes has not yet been investigated in urban habitats.

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