Overview

Ecogeomorphology is a selective field course in applied watershed science offered through the UC Davis Department of Geology. Taught by Professors Jeff Mount and Peter Moyle, the course focused on the Kobuk River in Alaska's Gates of the Arctic National Park and Preserve for its seventh year. Previous field course destinations include the Copper River, Green River, and Colorado River, among many.

The ability to work closely and collaboratively with professionals from different backgrounds is fundamental to success in the field of watershed science. This year's Ecogeomorphology course brought graduate students together from a variety of disciplines, including ecology, engineering, fisheries, and geography.

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The array of academic backgrounds allows students to work in collaborative, multidisciplinary teams on critical river and stream management questions. This year, the Ecogeomorphology course examined the most critical issue facing arctic and sub-arctic aquatic ecosystems: global climate change. By preparing background synopses prior to the field expedition, students were able to synthesize a body of knowledge regarding many aspects of arctic and sub-arctic aquatic food webs and potential changes to watershed functioning, such as productivity, permafrost, and altered hydrology. This background information was contributed to Wikipedia in an effort to facilitate the diffusion of knowledge and improve our ability to adaptively manage critical ecosystems.

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During class, the students discussed several issues in detail, reviewed published literature, and prepared individual reports for publication on Wikipedia. Following this period of classroom study, the students conducted a two-week field study of the Kobuk River watershed, located above the Arctic Circle in northern Alaska. A primary focus of this study was the status of sheefish (Stenodus leucicthys, or "Tarpon of the Tundra"), a unique arctic fish species of limited distribution, and potential changes to its habitat due to climatic change. The field study included the collection of original information on aquatic and riparian ecology, hydrology and fluvial geomorphology, which are published herein. Please see the attachment below for the final report of this study.

Funding for the course has been provided by the Roy Shlemon Chair in Applied Geosciences. Many thank yous to all that made this trip possible.


AttachmentSize
Conceptual_ecosystem_model_of_the_Kobuk_River_UC_Davis_September_2009.pdf1.13 MB

Featured Flogs

Arctic Weather and the Kobuk Hydrograph

Posted By: 
Christina Connell
Date: 
August 11, 2008

Our group expected and prepared for 11 wet cold days on the river since the second peak of the hydrograph in the Kobuk River basin comes in August due to summer precipitation events. The basin gets an average of 21 inches (53 cm) per year; yet, as it turned out, our group saw very little of that.

Vegetative patterns, scale and climate change in the Kobuk River Valley. August 13, 2008.

Posted By: 
John Durand
Date: 
August 13, 2008

The vegetative communities adjacent to the Kobuk River are comprised of alpine tundra; successional willow/cottonwood forest and climax spruce boreal forest on well-drained soils; and lowland tundra on poorly-drained soils. Soil drainage is determined by slope, soil type, bedrock type and the presence of permafrost.

Hidden Oxbows: All the Bugs We Were Not Suppose to See

Posted By: 
Robert Lusardi
Date: 
August 14, 2008

The statement resonated in my head: “Several orders (of insects) that occur regularly in streams of temperate North America are absent (or in very low abundance) in interior Alaskan streams - Hemiptera, Odonata, Megaloptera, Coleoptera.” I saw the sentence in an abstract that I read before leaving for the Kobuk River in Northwest Alaska. At the time it made a lot of sense.