David Walters - USGS (FORT)

Title: Ecologist

FORT Affiliation: Aquatic Systems

Duty Station:
Fort Collins Science Center
2150 Centre Ave
Bldg C
Fort Collins, CO 80526

Phone: 970-226-9484

Email: waltersd@usgs.gov

      

      

Research Publications

Displaying 1 - 35 of 35
Year Title Type
2017 A modeling approach to compare ΣPCB concentrations between congener-specific analyses Journal Article
2017 Riparian spiders as sentinels of polychlorinated biphenyl contamination across heterogeneous aquatic ecosystems Journal Article
2016 Assessing atmospheric concentration of polychlorinated biphenyls (PCBs) by evergreen Rhododendron maximum next to a contaminated stream Journal Article
2016 Rapid movement and instability of an invasive hybrid swarm Journal Article
2016 Trophic magnification of organic chemicals: A global synthesis Journal Article
2015 Aquatic pollution increases use of terrestrial prey subsidies by stream fish Journal Article
2015 Methylmercury bioaccumulation in stream food webs declines with increasing primary production Journal Article
2014 Barriers impede upstream spawning migration of flathead chub Journal Article
2014 Cross-ecosystem impacts of stream pollution reduce resource and contaminant flux to riparian food webs Journal Article
2014 Metamorphosis alters contaminants and chemical tracers in insects: implications for food webs Journal Article
2014 Metamorphosis enhances the effects of metal exposure on the mayfly, Centroptilum triangulifer Journal Article
2013 Assessing ongoing sources of dissolved phase Polychlorinated Biphenyls (PCBs) in a contaminated stream Journal Article
2013 Effects of a chronic lower range of triclosan exposure to a stream mesocosm community Journal Article
2013 Emergence flux declines disproportionately to larval density along a stream metals gradient Journal Article
2012 Genetic diversity and species diversity of stream fishes covary across a land-use gradient Journal Article
2011 An assessment of stressor extent and biological condition in the North American mid-continent great rivers (USA) Journal Article
2011 The distance that contaminated aquatic subsidies extend into lake riparian zones Journal Article
2011 Trophic magnification of PCBs and its relationship to the octanol--water partition coefficient Journal Article
2010 Persistent organic pollutants in fish tissue in the mid-continental great rivers of the United States Journal Article
2010 Reproductive isolation and the expansion of an invasive hybrid swarm Journal Article
2010 Spider-mediated flux of PCBs from contaminated sediments to terrestrial ecosystems and potential risks to arachnivorous birds Journal Article
2010 Transformation of chiral polychlorinated biphenyls (PCBs) in a stream food web Journal Article
2009 Environmental indicators of macroinvertebrate and fish assemblage integrity in urbanizing watersheds Journal Article
2009 Foodweb modeling for polychlorinated biphenyls (PCBs) in the Twelvemile Creek Arm of Lake Hartwell, South Carolina, USA Journal Article
2009 Larval salamanders and channel geomorphology are indicators of hydrologic permanence in forested headwater streams Journal Article
2008 Comparing trophic position of stream fishes using stable isotope and gut contents analyses Journal Article
2008 Influence of Trophic Position and Spatial Location on Polychlorinated Biphenyl (PCB) Bioaccumulation in a Stream Food Web Journal Article
2008 Physical indicators of hydrologic permanence in forested headwater streams Journal Article
2008 Red shiner invasion and hybridization with blacktail shiner in the upper Coosa River, USA Journal Article
2008 The dark side of subsidies: Adult stream insects export organic contaminants to riparian predators Journal Article
2007 Reach-scale geomorphology affects organic matter and consumer δ13C in a forested Piedmont stream Journal Article
2005 Urbanization effects on fishes and habitat quality in a southern Piedmont river basin Proceedings, Pages in
2003 Geomorphology and fish assemblages in a Piedmont river basin, U.S.A Journal Article
2003 Urbanization, sedimentation, and the homogenization of fish assemblages in the Etowah River Basin, USA Journal Article
2000 Distribution of Gambusia (Poeciliidae) in a southeastern river system and the use of fin ray counts for species determination Journal Article

Pre-USGS Products

Displaying 1 - 21 of 21
Year Title Type
2011 An assessment of stressor extent and biological condition in the North American mid-continent great rivers (USA) Journal Article
2011 Biologically-mediated flux of trace metals from streams to riparian spiders: a large scale survey in mineralized alpine ecosystems Abstract
2011 The distance that contaminated aquatic subsidies extend into lake riparian zones Journal Article
2011 Transfer of trace metals from streams to terrestrial food webs by emerging aquatic insects in mineralized alpine ecosystems Abstract
2010 Persistent organic pollutants in fish tissue in the mid-continental great rivers of the United States Journal Article
2010 Reproductive isolation and the expansion of an invasive hybrid swarm Journal Article
2010 Spider-mediated flux of PCBs from contaminated sediments to terrestrial ecosystems and potential risks to arachnivorous birds Journal Article
2010 Transformation of chiral polychlorinated biphenyls (PCBs) in a stream food web Journal Article
2009 Environmental indicators of macroinvertebrate and fish assemblage integrity in urbanizing watersheds Journal Article
2009 Foodweb modeling for polychlorinated biphenyls (PCBs) in the Twelvemile Creek Arm of Lake Hartwell, South Carolina, USA Journal Article
2009 Larval salamanders and channel geomorphology are indicators of hydrologic permanence in forested headwater streams Journal Article
2008 Comparing trophic position of stream fishes using stable isotope and gut contents analyses Journal Article
2008 Influence of Trophic Position and Spatial Location on Polychlorinated Biphenyl (PCB) Bioaccumulation in a Stream Food Web Journal Article
2008 Physical indicators of hydrologic permanence in forested headwater streams Journal Article
2008 Red shiner invasion and hybridization with blacktail shiner in the upper Coosa River, USA Journal Article
2008 The dark side of subsidies: Adult stream insects export organic contaminants to riparian predators Journal Article
2007 Reach-scale geomorphology affects organic matter and consumer δ13C in a forested Piedmont stream Journal Article
2005 Urbanization effects on fishes and habitat quality in a southern Piedmont river basin Proceedings, Pages in
2003 Geomorphology and fish assemblages in a Piedmont river basin, U.S.A Journal Article
2003 Urbanization, sedimentation, and the homogenization of fish assemblages in the Etowah River Basin, USA Journal Article
2000 Distribution of Gambusia (Poeciliidae) in a southeastern river system and the use of fin ray counts for species determination Journal Article