Douglas Andersen - USGS

Ecosystem Dynamics

Research Ecologist

Duty Station:
Denver Field Station
c/o Bureau of Reclamation
P.O. Box 25007 86-68220
Denver, CO 80225-0007

Phone: 303-445-2209
Fax: 303.445.6328
Email: doug_andersen@usgs.gov

Current Research

• Elk and Bison Grazing Ecology in Great Sand Dunes National Park and Preserve
• Colorado River Basin Riparian Ecology
• Managed Streamflow and the Ecology of the Bill Williams River

Products

Publications

Total Records:31

• The influence of river regulation and land use on floodplain forest regeneration in the semi-arid Upper Colorado River Basin, USA
• Road impacts on the Baca National Wildlife Refuge, Colorado, with emphasis on effects to surface- and shallow ground-water hydrology -- a literature review
• Las Vegas Wash water quality monitoring program 2006 report of findings
• Variable role of aquatic macroinvertebrates in initial breakdown of seasonal leaf litter inputs to a cold-desert river
• Dams, floodplain land use, and riparian forest conservation in the semiarid Upper Colorado River Basin, USA
• Flood pattern and weather determine Populus leaf litter breakdown and nitrogen dynamics on a cold desert floodplain
• Characterizing flow regimes for floodplain forest conservation: an assessment of factors affecting sapling growth and survivorship on three cold desert rivers
• Patterns of nitrogen accumulation and cycling in riparian floodplain ecosystems along the Green and Yampa rivers
• Ord's kangaroo rats living in floodplain habitats: factors contributing to habitat attraction
• Beaver herbivory of willow under two flow regimes: a comparative study on the Green and Yampa rivers
• Multiple pathways for woody plant establishment on floodplains at local to regional scales
• Flood flows, leaf breakdown, and plant-available nitrogen on a dryland river floodplain
• The effects of bird use on nutrient removal in a constructed wastewater-treatment wetland
• Effects of river flow regime on cottonwood leaf litter dynamics in semi-arid northwestern Colorado
• Small mammals within riparian habitats of a regulated and unregulated aridland river
• Beaver herbivory and its effect on cottonwood trees: influence of flooding along matched regulated and unregulated rivers
• Observations of the larval stages of Diceroprocta apache Davis (Homoptera: Tibicinidae)
• Spatial correlations of Diceroprocta apache and its host plants: evidence for a negative impact from Tamarix invasion
• Effects of cottonwood leaf beetle Chrysomela scripta (Coleoptera: Chrysomelidae) on survival and growth of Fremont cottonwood (Populus fremontii) in northwest Colorado
• The demographic response of bank-dwelling beavers to flow regulation: a comparison on the Green and Yampa rivers
• Plant-herbivore-hydroperiod interactions: effects of native mammals on floodplain tree recruitment
• Movement patterns of riparian small mammals during predictable floodplain inundation
• Rodent use of anthropogenic and 'natural' desert riparian habitat, lower Colorado River, Arizona
• Factors controlling the establishment of Fremont cottonwood seedlings on the Upper Green River, USA
• Butterfly (Papilionoidea and Hesperioidea) assemblages associated with natural, exotic, and restored riparian habitats along the lower Colorado River, USA
• Waterfowl and wildlife issues
• A spatially-explicit model of search path and soil disturbance by a fossorial herbivore
• Demographics of small mammals using anthropogenic desert riparian habitat in AZ
• Review of Mammals of Colorado by J. P. Fitzgerald, C. A. Meaney, and D. M. Armstrong. Denver Museum of Natural History and University Press of Colorado, Niwot, Colorado. Colorado mammals
• An assessment of riparian environmental quality by using butterflies and disturbance susceptibility scores
• Are cicadas (Diceroprocta apache) both a "keystone" and a "critical-link" species in lower Colorado River riparian communities?