Geosciences and Environmental Change Science Center
September 23, 2016
Quaternary geologic map of the Wolf Point 1° × 2° quadrangle, Montana and North Dakota
By Dave Fullerton (GECSC), Roger Colton, and Chuck Bush (GECSC). USGS Open-File Report 2016-1142.
This 1:250,000-scale map of an area of northern Montana and North Dakota was prepared to provide a database for compilation of the Regina 4° x 6° 1:1,000,000-scale quadrangle, part of the USGS Quaternary Geologic Atlas of the United States map series. Surficial deposits and materials shown on the map are assigned to 23 map units on the basis of genesis, age, lithology or composition, texture or particle size, as well as other physical, chemical, and engineering characteristics, and generally not indicative of landforms. Along with the geologic map, the report includes the geodatabase and GIS shape files.
September 16, 2016
Evaluating alternative methods for biophysical and cultural biophysically modeled hotspot mapping in natural resource planning
By Ken Bagstad, Darius Semmens, Zach Ancona, and Ben Sherrouse. Published in the Landscape Ecology.
While biophysical models of increasing sophistication are helping resource managers systematize ecosystem service assessments, cultural ecosystem services have not been as well integrated into many assessments. Using six hot/coldspot delineation methods, this study overlaid biophysically modeled ecosystem services mapped using the ARIES modeling software with cultural services mapped using Social Values for Ecosystem Services (SolVES), a public participatory GIS approach, for six national forests in Colorado and Wyoming. Statistical hotspot methods of intermediate conservatism may be most useful for landscape scale planning that incorporates ecosystem service hot/coldspot mapping. The study also found evaluated ecosystem service hot and coldspots in wilderness areas. Wilderness areas to carried greater values than non-wilderness for national forests located near urban areas, but were less valued than non-wilderness areas in rural areas.
Research geologist Dan Muhs was quoted by CNN in their article Tale of the tusks: Discovery of intact mammoth skull raises questions. A mammoth skull found on Santa Rosa Island, part of Channel Islands National Park off the coast of California, is estimated to be 13,000 years old, which would place it at about the time as the earliest human records on the island. Dan offers some possibilities of how mammoths became extinct on the Channel Islands, which include human activities compounded with stresses related to climate change.
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