Geosciences and Environmental Change Science Center
October 16, 2014
Glacial and Quaternary geology of the northern Yellowstone area, Montana and Wyoming
By Ken Pierce (GECSC), Joseph Licciardi, Teresa Krause, and Cathy Whitlock. Published in Geological Society of America Field Guide 37—Exploring the Northern Rocky Mountains.
This field trip of the Exploring the Northern Rocky Mountains Field Guide focuses on the glacial geology and paleoecology beginning in Paradise Valley, Montana and progressing southward into northern Yellowstone National Park. The stops on the route present glacial features with description and information on their formation. Also presented here is an overview of the paleoecology and paleo-fire history of the field trip area.
October 15, 2014
Identifying Sources of Aeolian Mineral Dust: Present and Past
By Dan Muhs (GECSC), Joseph Prospero, Matthew Baddock, and Thomas Gill. A chapter in Mineral Dust: A Key Player in the Earth System.
Aeolian mineral dust is an important component of the Earth's environmental systems and identifying its sources is crucial to fully understanding the roles it plays. This chapter in Mineral Dust reviews the methods used to identify dust sources active at present and in the past. The study of dust and its sources also gives indications of what role it played during past glacial and interglacial periods and indications of what can be expected in the future.
October 8, 2014
Characterizing recent and projecting future potential patterns of mountain pine beetle outbreaks in the Southern Rocky Mountains
By Lu Liang, Todd Hawbaker (GECSC), Yanlei Chen, Zhiliang Zhu, and Peng Gong. Published in Applied Geography.
The aim of this study was to quantify the landscape-level drivers that explained the dynamic patterns of mountain pine beetle mortality, and simulate areas with future potential mountain pine beetle mortality under projected climate-change scenarios in Grand County, Colorado. The results show that neighborhood mortality, winter mean temperature anomaly, and residential housing density were positively associated with mountain pine beetle mortality, whereas summer precipitation was negatively related. The model used for this study implies that the impacts of mountain pine beetle outbreaks on vegetation composition and structure, and ecosystem functioning in Grand County are likely to increase in the future.
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