Dave is the Fisheries Program Manager for the Ecosystems Mission Area.
Professional Experience
2020-Present, Fisheries Program Manager, US Geological Survey, Reston, VA
2013-2020, National Fisheries Biologist, Bureau of Land Management, Washington DC
2009-2013, Fisheries Program Manager, US Forest Service, Gifford Pinchot National Forest, Vancouver, WA
2002-2009, Habitat Restoration Coordinator, US Fish and Wildlife Service, Anadromous Fish Habitat Program, Stockton, CA
1999-2002, Assistant Museum Curator/Research Technician, New Mexico State University, Arthropod Museum, Las Cruces, NM
Education and Certifications
B.S., Biology, New Mexico State University, 2000
B.S. Wildlife Science, New Mexico State University, 2000
M.S., Entomology, New Mexico State University, 2002
Science and Products
Species We Study: Fish
We are a scientific leader in aquatic species biology, genetics, toxicological and pathogenic disease, ecology, and population tracking and dynamics for at-risk aquatic species including native fish and their ecosystems.
Species We Study: Amphibians
Across the country, USGS scientists research amphibians to help other agencies manage this historically underappreciated and now declining group. Our scientists have learned that no single threat explains global amphibian declines; instead, a variety of local and global factors are contributing. Habitat loss, disease, contaminants, and other threats are all part of the pattern.
By land, air, and water — U.S. Geological Survey science supporting fish and wildlife migrations throughout North America
Countless species of animals—big game, birds, bats, insects, amphibians, reptiles, and fish—migrate to reach suitable habitats to feed, reproduce, and raise their young. Animal migrations developed over millennia commonly follow migration corridors—unique routes for each species—to move among seasonal habitats. Changes along those corridors, whether from human development (buildings, roads, dams)
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Science and Products
- Science
Species We Study: Fish
We are a scientific leader in aquatic species biology, genetics, toxicological and pathogenic disease, ecology, and population tracking and dynamics for at-risk aquatic species including native fish and their ecosystems.Species We Study: Amphibians
Across the country, USGS scientists research amphibians to help other agencies manage this historically underappreciated and now declining group. Our scientists have learned that no single threat explains global amphibian declines; instead, a variety of local and global factors are contributing. Habitat loss, disease, contaminants, and other threats are all part of the pattern. - Publications
By land, air, and water — U.S. Geological Survey science supporting fish and wildlife migrations throughout North America
Countless species of animals—big game, birds, bats, insects, amphibians, reptiles, and fish—migrate to reach suitable habitats to feed, reproduce, and raise their young. Animal migrations developed over millennia commonly follow migration corridors—unique routes for each species—to move among seasonal habitats. Changes along those corridors, whether from human development (buildings, roads, dams)By