Title: Late Miocene rise and fall of C4 grasses in the western United States linked to aridification and uplift
Abstract: Research Article| August 15, 2018 Late Miocene rise and fall of C4 grasses in the western United States linked to aridification and uplift Ethan G. Hyland; Ethan G. Hyland † 1Department of Earth and Environmental Sciences, University of Michigan, 1100 North University Avenue, Ann Arbor, Michigan 48109, USA2Department of Biology and Burke Museum of Natural History, University of Washington, Seattle, Washington 98195, USA †Present address: MEAS, North Carolina State University; [email protected]. Search for other works by this author on: GSW Google Scholar Nathan D. Sheldon; Nathan D. Sheldon 1Department of Earth and Environmental Sciences, University of Michigan, 1100 North University Avenue, Ann Arbor, Michigan 48109, USA Search for other works by this author on: GSW Google Scholar Selena Y. Smith; Selena Y. Smith 1Department of Earth and Environmental Sciences, University of Michigan, 1100 North University Avenue, Ann Arbor, Michigan 48109, USA Search for other works by this author on: GSW Google Scholar Caroline A.E. Strömberg Caroline A.E. Strömberg 2Department of Biology and Burke Museum of Natural History, University of Washington, Seattle, Washington 98195, USA Search for other works by this author on: GSW Google Scholar GSA Bulletin (2019) 131 (1-2): 224–234. https://doi.org/10.1130/B32009.1 Article history received: 04 Jan 2018 rev-recd: 17 May 2018 accepted: 16 Jul 2018 first online: 15 Aug 2018 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn MailTo Tools Icon Tools Get Permissions Search Site Citation Ethan G. Hyland, Nathan D. Sheldon, Selena Y. Smith, Caroline A.E. Strömberg; Late Miocene rise and fall of C4 grasses in the western United States linked to aridification and uplift. GSA Bulletin 2018;; 131 (1-2): 224–234. doi: https://doi.org/10.1130/B32009.1 Download citation file: Ris (Zotero) Refmanager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentBy SocietyGSA Bulletin Search Advanced Search Abstract C4 grasslands are a major global ecosystem with an important role as the primary source of food resources and agricultural land for the planet. Despite this, the causes and timeline of their expansion are still not fully known and appear to be variable in different parts of the world. By combining phytolith and stable isotope methods, we produce robust estimates of late Miocene C4 vegetation composition and compile a regional vegetation record through time from the late Miocene through present in southwestern Montana (USA). These estimates indicate the fairly rapid rise of C4 grasses to peak levels during the late Miocene (Hemphillian) and subsequent decline to moderate levels from the Pliocene through Present. This temporal pattern indicates significant interplay between climatic and tectonic drivers, with the late Miocene rise of C4 grasses triggered by regional aridification, and the return to lower (modern) abundances due to ecosystem restrictions linked to recent regional uplift driven by mantle buoyancy associated with the Yellowstone hotspot. You do not have access to this content, please speak to your institutional administrator if you feel you should have access.
Publication Year: 2018
Publication Date: 2018-08-15
Language: en
Type: article
Indexed In: ['crossref']
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Cited By Count: 20
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