Sam Droege
Sam is a Wildlife Biologist at the Eastern Ecological Science Center in Laurel, MD.
Sam has coordinated the North American Breeding Bird Survey Program, developed the North American Amphibian Monitoring Program, the BioBlitz, Cricket Crawl, and FrogwatchUSA programs and worked on the design and evaluation of monitoring programs. Currently he is developing an inventory and monitoring program for native bees, online identification guides for North American bees at discoverlife.org, and reviving the North American Bird Phenology Program.
Education and Certifications
M.S. from State University of New York – Syracuse
B.S. from University of Maryland
Science and Products
Filter Total Items: 72
On the decline of the Rusty Blackbird and the use of ornithological literature to document long-term population trends On the decline of the Rusty Blackbird and the use of ornithological literature to document long-term population trends
Unlike most North American blackbirds, Rusty Blackbirds (Euphagus carolensis) have shown steep population declines. Declines of approximately 90% are indicated for three recent decades from the Breeding Bird Survey, Christmas Bird Counts, and Quebec Checklist Program. Analyses of abundance classifications in bird distribution books and annotated checklists reveal an overlooked but long...
Authors
R. Greenberg, Sam Droege
Morphological adaptation with no mitochondrial DNA differentiation in the coastal plain swamp sparrow Morphological adaptation with no mitochondrial DNA differentiation in the coastal plain swamp sparrow
We estimated genetic differentiation between morphologically distinct tidal marsh populations of Swamp Sparrows (Melospiza georgiana nigrescens) and the more widespread inland populations (M. g. georgiana and M. g. ericrypta). The tidal marsh populations are consistently grayer with more extensive black markings (particularly in the crown), and their bills are larger. These differences...
Authors
R. Greenberg, P.J. Cordero, Sam Droege, R.C. Fleischer
Birds and landscape changes in Northeastern forests Birds and landscape changes in Northeastern forests
No abstract available.
Authors
Sam Droege
Trends in Appalachian bird populations, some speculative notes on the causes, and some thoughts on conservation directions for the region Trends in Appalachian bird populations, some speculative notes on the causes, and some thoughts on conservation directions for the region
No abstract available.
Authors
Sam Droege
Checklists: An under-used tool for the inventory and monitoring of plants and animals Checklists: An under-used tool for the inventory and monitoring of plants and animals
Checklists are widely used to catalog field observations of plants and animals. We used 25 years of bird checklist data from the Études des Populations d’Oiseaux du Quebec program to examine the ability of checklists to produce reliable conservation, management, and ecological information. We found that checklists can provide reliable information on changes in bird populations, phenology...
Authors
Sam Droege, A. Cyr, J. Larivee
Monitoring populations of plants and animals Monitoring populations of plants and animals
No abstract available.
Authors
J.P. Gibbs, Sam Droege, P. Eagle
Science and Products
Filter Total Items: 72
On the decline of the Rusty Blackbird and the use of ornithological literature to document long-term population trends On the decline of the Rusty Blackbird and the use of ornithological literature to document long-term population trends
Unlike most North American blackbirds, Rusty Blackbirds (Euphagus carolensis) have shown steep population declines. Declines of approximately 90% are indicated for three recent decades from the Breeding Bird Survey, Christmas Bird Counts, and Quebec Checklist Program. Analyses of abundance classifications in bird distribution books and annotated checklists reveal an overlooked but long...
Authors
R. Greenberg, Sam Droege
Morphological adaptation with no mitochondrial DNA differentiation in the coastal plain swamp sparrow Morphological adaptation with no mitochondrial DNA differentiation in the coastal plain swamp sparrow
We estimated genetic differentiation between morphologically distinct tidal marsh populations of Swamp Sparrows (Melospiza georgiana nigrescens) and the more widespread inland populations (M. g. georgiana and M. g. ericrypta). The tidal marsh populations are consistently grayer with more extensive black markings (particularly in the crown), and their bills are larger. These differences...
Authors
R. Greenberg, P.J. Cordero, Sam Droege, R.C. Fleischer
Birds and landscape changes in Northeastern forests Birds and landscape changes in Northeastern forests
No abstract available.
Authors
Sam Droege
Trends in Appalachian bird populations, some speculative notes on the causes, and some thoughts on conservation directions for the region Trends in Appalachian bird populations, some speculative notes on the causes, and some thoughts on conservation directions for the region
No abstract available.
Authors
Sam Droege
Checklists: An under-used tool for the inventory and monitoring of plants and animals Checklists: An under-used tool for the inventory and monitoring of plants and animals
Checklists are widely used to catalog field observations of plants and animals. We used 25 years of bird checklist data from the Études des Populations d’Oiseaux du Quebec program to examine the ability of checklists to produce reliable conservation, management, and ecological information. We found that checklists can provide reliable information on changes in bird populations, phenology...
Authors
Sam Droege, A. Cyr, J. Larivee
Monitoring populations of plants and animals Monitoring populations of plants and animals
No abstract available.
Authors
J.P. Gibbs, Sam Droege, P. Eagle