Skip to main content

David Theobald

thumbnail
This dataset is one of a dozen or so datasets that provide the basis for a vulnerability assessment of the Great Northern LCC that examines land use and climate changes at landscape scales, for the full LCC boundary. It provides a measure of vulnerability based on temperature change using a watershed-based analysis. The values range from 0 to 1 and are unitless, where Vtw = Et x (1-Aw). The original floating point values ranging from 0-1.0 were multiplied by 100 and converted to integer format for this dataset.
thumbnail
This dataset is one of a dozen or so datasets that provide the basis for a vulnerability assessment of the Great Northern LCC that examines land use and climate changes at landscape scales, for the full LCC boundary. It provides a measure of vulnerability based on biome velocity and using a terrestrial (moving window) anlaysis. The values range from 0 to 1 and are unitless, where Vhg = Eh x (1-Ag). The original floating point values ranging from 0-1.0 were multiplied by 100 and converted to integer format for this dataset.
This report presents the results of an ecoregional conservation assessment of the Southern Rocky Mountains (SRM), an area that extends over approximately 40 million acres, from southern Wyoming through central and western Colorado to northern New Mexico. The overall objective of this assessment was to identify and design a portfolio of conservation areas that, with proper management, would ensure the long-term survival of the ecological systems, plant communities, and species of the SRM.
This report contains research results and products compiled in the course of the comprehensive review project Systematic review of aquatic ecological integrity assessments in western North America: Identifying challenges and opportunities for integration into landscape conservation plans. Some of these results have been accepted in a peer-reviewed journal (Section 1), others are in preparation for a peer-review submission (Section II). The two remaining sections (III and IV) may contribute to additional peer reviewed publications in the future, but at this time are summarized solely in this report and as background material for the peer-reviewed articles as well as a web report entitled “Assessment of ecological...
thumbnail
This dataset is one of a dozen or so datasets that provide the basis for a vulnerability assessment of the Great Northern LCC that examines land use and climate changes at landscape scales, for the full LCC boundary. It provides a measure of vulnerability based on climate velocity using a terrestrially-based analysis. The values range from 0 to 1 and are unitless, where Vvg = Ev x (1-Ag). The original floating point values ranging from 0-1.0 were multiplied by 100 and converted to integer format for this dataset.
View more...
ScienceBase brings together the best information it can find about USGS researchers and offices to show connections to publications, projects, and data. We are still working to improve this process and information is by no means complete. If you don't see everything you know is associated with you, a colleague, or your office, please be patient while we work to connect the dots. Feel free to contact sciencebase@usgs.gov.