Roger Sayre
Ecosystems Geographer and Conservation Scientist mapping standardized, high resolution, global ecosystems for terrestrial, freshwater, and marine environments. Thirteen years leading International Conservation Science Programs of The Nature Conservancy and sixteen years mapping global ecosystems at the U.S. Geological Survey headquarters.
Science and Products
Global Ecosystems Continental Data
Ecosystems in the continental maps were geospatially delineated as facets of the landscape generated through biophysical stratification of bioclimate, biogeography, lithology, landforms, surface moisture, and land cover. This approach was framed on the understanding that the biodiversity that occurs in any area is largely the result of a biotic response to physical environmental potential and...
Global Ecosystems Global Data
USGS transitioned from its continental work into developing the data needed to address natural resource management from a global perspective. USGS is also responsible for the implementation of companion tools, called Explorers, to provide web-based visualization and query functionality for each new global dataset. Development of these datasets is being done by the USGS in partnership with Esri and...
Global Ecosystems
The Earth contains an astonishing variety of terrestrial, freshwater, and marine ecosystems, that provide the biological resources and services essential to our survival. The U.S. Geological Survey (USGS), in partnership with other organizations, is generating the datasets needed to better manage, conserve, and restore these vital natural resources that are increasingly threatened by fragmentation...
Science and Products
Global Ecosystems Continental Data
Ecosystems in the continental maps were geospatially delineated as facets of the landscape generated through biophysical stratification of bioclimate, biogeography, lithology, landforms, surface moisture, and land cover. This approach was framed on the understanding that the biodiversity that occurs in any area is largely the result of a biotic response to physical environmental potential and...
Global Ecosystems Global Data
USGS transitioned from its continental work into developing the data needed to address natural resource management from a global perspective. USGS is also responsible for the implementation of companion tools, called Explorers, to provide web-based visualization and query functionality for each new global dataset. Development of these datasets is being done by the USGS in partnership with Esri and...
Global Ecosystems
The Earth contains an astonishing variety of terrestrial, freshwater, and marine ecosystems, that provide the biological resources and services essential to our survival. The U.S. Geological Survey (USGS), in partnership with other organizations, is generating the datasets needed to better manage, conserve, and restore these vital natural resources that are increasingly threatened by fragmentation...