We invite applications for the following THREE PhD research positions in riparian ecology, fluvial geomorphology, and hydraulics for an NSF-funded project: "Quantifying feedbacks between fluvial morphodynamics and pioneer riparian vegetation in sand-bed rivers"

Riparian vegetation communities and river geomorphology co-evolve in many systems. Feedbacks vary spatially and temporally but are expected to be especially strong when vegetation is newly established: small enough to be vulnerable to scour and burial but large enough to redistribute flow and sediment transport within channels and on bars. This project will couple laboratory experiments, field investigations, and numerical modeling of vegetation, flow, and sediment interactions to develop a mechanistic and predictive understanding of feedbacks at nested spatial scales ranging from individual plants to channel reaches. We will concentrate on measuring and modeling the effect of vegetation on flow and sediment transport around individual plants and the reciprocal effect of flow on plant removal via scour and burial in arid sand-bed rivers, with the goal of improving management of river systems.

We seek three Ph.D. students to form an integrated interdisciplinary team across our three institutions. Please see more information about each position below.

State University of New York College of Environmental Science and Forestry (SUNY ESF) Dept. of Forest and Natural Resources Management. Seeking Ph.D. student starting in Spring or Summer 2011 working with Dr. John Stella to conduct riparian plant ecology studies in complementary field and flume settings. Field studies in the southwestern US will document woody plant responses to flooding disturbance in concert with geomorphology collaborators. Flume experiments at the St. Anthony Falls Laboratory, University of Minnesota, will investigate mechanistic processes of plant mortality in concert with engineering collaborators. Ideal candidates will have an MS in ecology, environmental science, or a related field; a strong quantitative and statistical background; the ability to work in remote field settings; and interest in feedbacks between vegetation and fluvial physical processes. The position is funded for a minimum of two years and provides a competitive stipend, tuition and benefits. Interested candidates (inquiries welcome) should send a CV or resume (with GPA and GRE scores), a letter describing research interests and experience, and names and contact information for 3 references to ste...@esf.edu (also see http://www.esf.edu/fnrm/faculty/stella.htm).

University of Montana (UMT) Dept. of Geosciences: Ph.D. student in fluvial geomorphology sought to plan, implement, and interpret field and numerical modeling elements of project, working with Dr. Andrew Wilcox and starting in Spring or Summer 2011. Field studies will be completed in the southwestern US and will include data collection on hydraulics, sediment transport, topography, and, in concert with ecology collaborators, riparian vegetation. Modeling will entail simulations of flow and sediment transport that integrate vegetation feedbacks to address management scenarios. Ideal candidates will have a BS/MS in earth sciences, engineering, or a related field; a strong quantitative and computational background; the ability to work in remote field settings; and interest in riparian ecology. The student will be funded as a Research Assistant (minimum two years) and Teaching Assistant, including stipend, tuition and benefits. Interested candidates should send a CV or resume (with GPA and GRE scores), a letter describing research interests and experience, and names and contact information for 3 references to andrew.wil...@umontana.edu (also see http://www.umt.edu/geosciences/faculty/wilcox/index.htm).

University of New Hampshire (UNH) Department of Earth Sciences or Department of Civil Engineering: Seeking Ph.D. student starting in Spring or Summer 2011 to plan, oversee , and interpret hydraulic and sediment transport aspects of flume experiments at UNH and in the Outdoor StreamLab at the St. Anthony Falls Laboratory at the University of Minnesota. Basic qualifications include a BS degree in engineering, earth sciences, physics, or mathematics; a strong quantitative background; and the ability to work without supervision in both field and lab settings. Desired qualifications include an MS degree in environmental engineering, hydrology, or geomorphology; a background in environmental fluid mechanics, open channel hydraulics, or sediment transport; and experience with hydraulic measurements. The position is funded for a minimum of two years and provides a competitive stipend, tuition and benefits. Interested candidates should contact Dr. Anne Lightbody, anne.lightb...@unh.edu (also see http://www.unh.edu/esci/people/lightbody-a.html). Application deadlines are December 1 for Spring 2011 and April 1 for Summer 2011.

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