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
Clarifying regional hydrologic controls of the Maranon River, Peru through rapid assessment to inform system-wide basin planning approaches
Publication Date: 2018-04-27
Type: Journal Article
Reassessing rainfall in the Luquillo Mountains, Puerto Rico: Local and global ecohydrological implications
Publication Date: 2017-07-07
Type: Journal Article
Land use history and population dynamics of free-standing figs in a maturing forest
Publication Date: 2017-05-24
Type: Journal Article
Formation of the Isthmus of Panama
O'Dea A; Lessios HA; Coates AG; Eytan RI; Restrepo-Moreno SA; Cione AL; Collins LS; de Queiroz A; Farris DW; Norris RD...
- O'Dea A
- Lessios HA
- Coates AG
- Eytan RI
- Restrepo-Moreno SA
- Cione AL
- Collins LS
- de Queiroz A
- Farris DW
- Norris RD
Publication Date: 2016-08-01
Type: Journal Article
Panorama regional y descripción de los sitios de los inventarios biológico y social / Regional panorama and overview of biological and social inventory sites
Vriesendorp C; Pitman N; Reyes DA; Barona-Colmenares AA; Bravo A; Londoño SC; del Campo Á; Lizcano D; Markel J; Ríos ...
- Vriesendorp C
- Pitman N
- Reyes DA
- Barona-Colmenares AA
- Bravo A
- Londoño SC
- del Campo Á
- Lizcano D
- Markel J
- Ríos Paredes MA
Type: Chapter
Geología, hidrología y suelos /Geology, hydrology, and soils
Type: Chapter
Managing Watersheds for Ecosystem Services in the Steepland Neotropics
Type: Chapter
Resumen de los sitios del inventario biológico y social/Overview of biological and social inventory sites
Type: Chapter
Introduction to watershed ecosystem services
Type: Chapter
Geología, hidrología y suelos/Geology, hydrology, and soils
Type: Chapter
¿Qué tan viejo es el Istmo de Panamá?
Type: Chapter
Understanding natural capital: Part A: Geophysical context
Type: Chapter
A Unified Assessment of Hydrologic and Biogeochemical Responses in Research Watersheds in Eastern Puerto Rico Using Runoff-Concentration Relations
Publication Date: 2014-05-01
Type: Journal Article
Geología, hidrología y suelos / Geology, hydrology, and soils
Type: Chapter
Land use effects on ecosystem service provisioning in tropical watersheds, still an important unsolved problem
Publication Date: 2013-12-24
Type: Journal Article
Effect of land cover and use on dry season river runoff, runoff efficiency, and peak storm runoff in the seasonal tropics of Central Panama
Publication Date: 2013-12-01
Type: Journal Article
HOW OLD IS THE ISTHMUS OF PANAMA?
Publication Date: 2013-10-01
Type: Journal Article
Geología, hidrología y suelos / Geology, hydrology, and soils
Type: Chapter
Geología, hidrología y suelos / Geology, hydrology, and soils
Type: Chapter
Panorama regional y sitios visitados / Regional panorama and sites visited
Type: Chapter
Atmospheric inputs to watersheds of the Luquillo Mountains in eastern Puerto Rico—Chapter D
Type: Chapter
Hydrology and climate of four watersheds in eastern Puerto Rico—Chapter C
Type: Chapter
Weathering, landscape equilibrium, and carbon in four watersheds in eastern Puerto Rico—Chapter H
Type: Chapter
Appendix 1—Data processing and computation to characterize hydrology and compare water quality of four watersheds in Puerto Rico
Type: Chapter
Water quality and mass transport in four watersheds in eastern Puerto Rico—Chapter E
Type: Chapter
Pages
Outreach
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