Breadcrumb
Bio
Biogeochemistry, hydrology, and geomorphology
The earth-surface environment and how it changes on human and geologic time scales. My emphasis is on climate and land-use changes and how these affect processes that control the composition and dispersal of dissolved and solid phases in rivers and trace gases in the atmosphere. My work combines both field and theoretical studies using the tools of geology, biology, biogeochemistry, and geography.
Current areas of investigation: (1) Can we develop general physically and biologically based models of the processes that generate the dissolved and particulate load in rivers and trace substances in the atmosphere? (2) How do various phases chemically partition during transport in rivers and estuaries? (3) What are the dispersal pathways of river-borne substances through rivers and estuaries into the coastal environment? (4) How do human activities, particularly land-use change, affect environments being examined? (5) How do we use rivers to integrate phenomena at local spatial scales up to continental scales? (6) Can we formulate provenance models to reconstruct past geologic environments?
Education
- PhD: Massachusetts Institute of Technology - Woods Hole Oceanographic Institute, 1980
Awards
- Meritorious Service Award for "exceptional contributions to the development of new and innovative research programs in the U.S. Geological Survey," Department of the Interior, 2002
Research
Research interests: biogeochemistry, hydrology, and geomorphology.
Publications
Recent publications
Geolocation of man-made reservoirs across terrains of varying complexity using GIS
Publication Date: 2008-10-01
Type: Journal Article
Soil erosion: Data say C sink
Publication Date: 2008-04-11
Type: Journal Article
Geología, hidrología y suelos / Geology, hydrology, and soils
Type: Chapter
Panorama y sitios de muestreo / Overview and inventory sites
Type: Chapter
The relative roles of environment, history and local dispersal in controlling the distributions of common tree and shrub species in a tropical forest landscape, Panama
Publication Date: 2006-09-01
Type: Journal Article
Water and solute mass balance of five small, relatively undisturbed watersheds in the US
Peters NE; Shanley JB; Aulenbach BT; Webb RM; Campbell DH; Hunt R; Larsen MC; Stallard RF; Troester J; Walker JF...
- Peters NE
- Shanley JB
- Aulenbach BT
- Webb RM
- Campbell DH
- Hunt R
- Larsen MC
- Stallard RF
- Troester J
- Walker JF
Publication Date: 2006-04-01
Type: Journal Article
Geología y hidrología / Geology and hydrology
Type: Chapter
Panorama general de los sitios muestreados / Overview of inventory sites
Type: Chapter
Erosion and sediment yield
Type: Chapter
Procesos del paisaje: geología, hidrología y suelos / Landscape processes: geology, hydrology, and soils
Type: Chapter
GIS-Based Stream Network Analysis for the Upper Río Chagres Basin, Panama
Type: Chapter
Estimation of landslide importance in hillslope erosion within the Panama Canal Watershed
Type: Chapter
Science Implementation Strategy for the North American Carbon Program
Type: Book
Identifying storm flow pathways in a rainforest catchment using hydrological and geochemical modelling
Publication Date: 2004-10-30
Type: Journal Article
Ecological determinism in plant community structure across a tropical forest landscape
Publication Date: 2004-09-01
Type: Journal Article
Overland flow generation in two lithologically distinct rainforest catchments
Publication Date: 2004-08-10
Type: Journal Article
Rapid assessment of hydrology and soils in small tropical catchments
Type: Conference Proceeding
Hydrochemical flow separation and a comparison of runoff pathways in small tropical catchments
Type: Conference Proceeding
Soil hydrologic response in small tropical catchments
Type: Conference Proceeding
Investigation of in situ weathering of quartz diorite bedrock in the Rio Icacos basin, Luquillo Experimental Forest, Puerto Rico
Publication Date: 2003-12-30
Type: Journal Article
An ecosystem report on the Panama Canal: Monitoring the status of the forest communities and the watershed
Ibanez R; Condit R; Angehr G; Aguilar S; Garcia T; Martinez R; Sanjur A; Stallard R; Wright SJ; Rand AS...
- Ibanez R
- Condit R
- Angehr G
- Aguilar S
- Garcia T
- Martinez R
- Sanjur A
- Stallard R
- Wright SJ
- Rand AS
Publication Date: 2002-11-01
Type: Journal Article
Finding lost reservoirs: Using AML to automate reservoir geolocation
Type: Conference Proceeding
Possible environmental factors underlying amphibian decline in eastern Puerto Rico: Analysis of US government data archives
Publication Date: 2001-08-01
Type: Journal Article
Consistent land- and atmosphere-based US carbon sink estimates
Pacala SW; Hurtt GC; Baker D; Peylin P; Houghton RA; Birdsey RA; Heath L; Sundquist ET; Stallard RF; Ciais P...
- Pacala SW
- Hurtt GC
- Baker D
- Peylin P
- Houghton RA
- Birdsey RA
- Heath L
- Sundquist ET
- Stallard RF
- Ciais P
Publication Date: 2001-06-22
Type: Journal Article
The status of the Panama Canal watershed and its biodiversity at the beginning of the 21st century
Condit R; Robinson WD; Ibáñez R; Aguilar S; Sanjur A; Martínez R; Stallard RF; García T; Angehr GR; Petit L...
- Condit R
- Robinson WD
- Ibáñez R
- Aguilar S
- Sanjur A
- Martínez R
- Stallard RF
- García T
- Angehr GR
- Petit L
Publication Date: 2001-05-01
Type: Journal Article
Pages
Outreach
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