Effects of Fluvial Disturbance and Flow Regulation on Great Plains Riparian Trees

EPA Grant Number: U915357
Title: Effects of Fluvial Disturbance and Flow Regulation on Great Plains Riparian Trees
Investigators: Katz, Gabrielle L.
Institution: University of Colorado at Boulder
EPA Project Officer: Michaud, Jayne
Project Period: August 1, 1998 through June 1, 2001
Project Amount: $73,104
RFA: STAR Graduate Fellowships (1998) RFA Text |  Recipients Lists
Research Category: Fellowship - Geography Earth Sciences , Ecological Indicators/Assessment/Restoration , Academic Fellowships


The objectives of this project are to: (1) examine the downstream effects of dams on riparian forests in the southern Great Plains; and to(2) determine the ecological factors contributing to the invasive success of the exotic Russian olive (Elaeagnus angustifolia) in these ecosystems.


This project is designed to be as a multi-scale analysis. At the landscape scale, I compare the riparian forest along 3three river reaches in eastern Colorado, USA - the unregulated Arikaree River, and the regulated South Fork Republican River - both upstream and downstream of Bonny Dam. At the stand scale, I examine the composition, population age structure, and geomorphic distribution of the floodplain forest at 3three sites within each of the three study reaches. At the micro-scale, I use manipulative field experiments to investigate the influence of physical disturbance and granivory on seedling establishment of Russian olive and plains cottonwood,. and I also examine the distribution of seedlings of these two species at the 9nine field sites.

Supplemental Keywords:

fellowship, biological invasion, Colorado, CO, dam effects, riparian forests, southern Great Plains.

Progress and Final Reports:

  • 1999
  • 2000
  • Final