Spring sampling of the Tanana River

Jeremy B. Jones Associate Professor of Biology (Ecology) Institute of Arctic Biology Department of Biology and Wildlife University of Alaska Fairbanks Fairbanks, Alaska 99775 907-474-7972 907-474-6967 (fax) ffjbj@uaf.edu

RESEARCH INTERESTS:

Ecosystem ecology; organic matter and nutrient dynamics in stream ecosystems; global change and CO₂ evasion from aquatic and terrestrial ecosystems; microbial ecology of streams.

My research examines the consequences of spatial and temporal heterogeneity (i.e., patchiness) on ecosystem functioning, microbial transformations of carbon and nitrogen, and organic matter dynamics in stream ecosystems. This research addresses questions at a range of spatial scales, from microbial interactions to global warming. A central theme to my research has been the role of hydrology in stream ecosystems, both surface and subsurface, in linking ecosystem patches and governing microbial processes. My approach incorporates experimental testing of explicit hypotheses and descriptive study. Current research in my laboratory examines nitrogen and carbon cycling in streams and watersheds, CO₂ evasion from watersheds to the atmosphere, and the role of ants in soil development and nitrogen cycling in arid land soils.