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Patuxent Wildlife Research Center
U.S. Geological Survey
BARC - EAST, Building 307, Room 124
Beltsville, MD 20705

Office: (301) 497-5840
Home: (301) 390-7759
Fax: (301) 497-5624

Sam Droege


  • University of Maryland, B.A. General Biology 1980
  • S.U.N.Y. Syracuse, M.S. Wildlife Management 1985
    Major Advisor: Barry R. Noon
  • Biological Aide - Chesapeake Bay Center for Environmental Studies, Smithsonian Institute, 1978
  • Field Trip Leader - Smithsonian Associates, Smithsonian Institute, 1979
  • Graduate Research - SUNY Research Foundation, 1981-1983
  • Breeding Bird Atlas Block-Buster - New York State Department of Environmental Conservation, 1984
  • Biologist - New York Power Authority, 1985
  • Biological Technician - Migratory Bird and Habitat Research Laboratory, USFWS, 1979-1981
  • Biological Technician - Patuxent Wildlife Research Center, USFWS, 1985-1987
  • Wildlife Biologist - Office of Migratory Bird Management, USFWS 1987-1994.
  • Wildlife Biologist - Division of Inventory and Monitoring, Washington D.C., USNBS, 1994-1996
  • Wildlife Biologist - Patuxent Wildlife Research Center, USGS, 1996-Present.
  • Research assistantship, Patuxent Wildlife Research Center, 1981- 1982 $6K
  • Grant, American Wildlife Research Foundation, 1983 $2K
  • Grant, Maryland Ornithological Society, 1989 $0.25K
  • Grant, National Biological Information Infrastructure, 1995 $50K
  • Grant, National Biological Service State Partnership Program, 1996
  • Grant, Washington Field Biologist?s Club, 1997 $2.5K
  • Grant, National Park Service, 1997 (Declining Amphibian Web Site) $57K
  • Grant, Fish and Wildlife Service, 1997 $5K
  • Grant, NPS/EPA, PrimeNET, 1997 $360K
  • Grant NPS/EPA, REMAP, 1998 $400K
  • Grant, USGS, 1999 $5K
  • Grant, Park Foundation, 1999 $5K
  • Grant, Delaware Ornithological Society, 2000, $1.5K
  • Grant, Maryland Ornithological Society, 2000, $2K
  • Grant, Defenders of Wildlife, 2000, $4K
  • Grant, USFWS, 2003, $10K
  • Grant, CoEvolution Institute, $2K
MEMBER (some lapsed)
  • American Butterfly Association
  • American Ornithologists Union
  • Dragonfly Society of the Americas
  • Entomological Society of Washington
  • Maryland Entomological Society
  • Maryland Herpetological Society
  • Maryland Ornithological Society
  • Native Plant Society of Maryland
  • Smithsonian Institute - Research Associate
  • Orthopterists' Society
  • Wilson Ornithological Society
  • Xerces Society
  • Auk
  • Biological Conservataion
  • Ecological Applications
  • Herpetological Review
  • Ibis
  • Northeastern Naturalist
  • Journal of Field Ornithology
  • Journal of Avian Biology
  • Journal of Herpetology
  • Journal of Wildlife Management
  • Condor
  • Conservation Biology
  • Natural Areas Journal
  • Pan Pacific Entomologist
  • Wilson Bulletin
  • Wildlife Society Bulletin
  • Numerous Grant Proposals
  • Numerous Symposium Proceedings
  • Survey designs and statistical methods for the estimation of avian population trends. 1990. Biological Report 90(1). (Co-edited with J.R. Sauer).

  • Monitoring bird populations by point counts. 1995. USDA Forest Service, Pacific Southwest Research Station, General Technical Report PSW-GTR-149. (Co-edited with C. J. Ralph and J.R. Sauer)

  • Terrestrial Vertebrates of Tidal Marshes: Evolution, Ecology, and Conservation. In review.

  • President Patuxent Chapter of Maryland Ornithological Society 1979-1980, 1986-1988
  • Board of Directors, Maryland Ornithological Society, 1979-1980
  • Member Sanctuary Committee, Maryland Ornithological Society, 1980
  • Compiler, Bowie Christmas Bird Count, 1987.
  • Board of Directors - Marsh Monitoring Program, 1994-Present
  • Co-leader Workshop on Survey Designs and Statistical Methods for the Estimation of Avian Population Trends, 1989
  • Coordinator for Dorchester County, Maryland Breeding Bird Atlas 1985-1988
  • Co-leader, Workshop on Point Counts, 1991
  • Presided on Session on Population Biology, American Ornithologist?s Union Meeting, 1992
  • Co-leader and Co-founder of DCBirdscape, 1992
  • Workshop on Vertebrates as Biological Indicators, USEPA, 1991
  • Compiler Jug Bay Christmas Bird Count, 1993-present
  • Convener and Co-leader, Workshop on monitoring birds during migration, Simcoe, Ont, 1993.
  • Member, Monitoring Group, Partners in Flight., 1992-present
  • Convener and Co-leader. Workshop on Amphibian Monitoring, Indiana Dunes National Lakeshore, 1994.
  • Compiler Swamp Poodle Fourth of July Butterfly Count, 1995-1996.
  • Convener and Co-leader. North American Amphibian Monitoring Program, Second Annual Meeting, Hamilton, Ontario, 1995.
  • Session Moderator, Monitoring Patuxent Annual Meeting, Laurel, MD, 1996.
  • Convener and Leader. North American Amphibian Monitoring Program, Third Annual Meeting. Held on the World Wide Web, 1996-1997.
  • Convener and Co-leader of the Kenilworth Aquatic Gardens BioBlitz, 1996.
  • Convener and Co-leader Raptor Monitoring Workshop, Boise, ID, 1996.
  • Jug Bay Wetlands Sanctuary, Science Advisory Panel, 1997-Ongoing.
  • Developer and Co-leader Terrestrial Salamander Monitoring Program, 1997.
  • Fairhaven School/GreenHOME deconstruction (3 projects), 1997.
  • Research Committee, Maryland Ornithological Society, 1998-present.
  • Convener and Co-leader Workshop on Monitoring Mushrooms, Santa Monica, CA 1998.
  • Fairhaven School Building Project Timber Sawyer and Framer, 1998.
  • Leader in deconstruction of 2 complete houses and 2 partial demolitions and the reuse/recycling of materials, 1998
  • Thousand Friends of Frogs Advisory Council, 1998-ongoing.
  • Co-leader Strawbale Building Workshop, Tacoma Park, MD 1999.
  • Co-leader Amphibian Biology Workshop, Laurel, MD 1999.
  • Convener and Co-leader North American Amphibian Monitoring Program Meeting, State College, PA 1999.
  • Participant National Solar Homes Tour 1992-Present
  • Board Member - Outreach Center for Sustainable Building - 1999-2001
  • Special Member of University of Maryland Eastern Shore Graduate Faculty
  • Convener and Co-leader Saltmash Vertebrate Symposium - 2002
  • Northeast National Park Monitoring Technical Committee - 2003-present

Development and implementation of statistically appropriate monitoring programs for plants and animals of all kinds.


  • Biology:
    • Animal Diversity
    • General Botany
    • General Microbiology
    • Plant Ecology
    • Ecology of Marsh and Dune Vegetation
    • General Entomology
    • Ornithology
    • Introduction to the Diseases of Wildlife
    • Living off the Land
    • Insect Taxonomy and Biology
    • Elements of Forestry
    • Plant Genetics
    • Plant Taxonomy
    • Field Work Analysis
    • Mammalogy
    • Ethology
    • Lab and Field Ecology
    • Advanced Animal Ecology
    • Biology and Management of Shellfish
    • Preparation of Small Mammal Study Skins
    • Plant Kingdom
    • Wildlife Management
    • Principles of Conservation
    • Wetland Ecology
    • Advanced Plant Ecology
    • Management of Wildlife Habitats and Populations
    • Habitat Inventory and Analysis
    • Silviculture Special Purpose Management
    • Animal Ecology and Behavior Seminar
    • Museum Techniques
    • Cell Physiology
    • Population Ecology
    • Furbearer Management and Ecology
    • Ecological Energetics
    • Evolution and Social Behavior
    • Wildlife Field Trip
    • A Number of Short Workshops on Natural History Topics
  • Statistics:
    • Elementary Statistics and Probability
    • Biometrics
    • Introduction to Analysis
    • Analysis of Variance
    • Multivariate Statistics

MINITAB, BMDP, SPSS, SAS, DBASE, SYSTAT, SPS, MONITOR, Lotus 1-2-3, MapViewer, Surfer, GIS, Html Editors, plus myriads of other software packages on MAC, Apple, DOS, UNIX, Windows platforms.


  • Colonial Waterbirds: Tern and cormorant banding, Faulkner Island, CT; Tern banding, Virginia Coast Reserve, VA.
  • Shorebirds: Purple Sandpiper banding Ocean City, MD; nocturnal shorebird banding, Wallops Island, VA; beach transects for shorebirds, Assateague Island, VA; mudflat counts, Assateague Island, VA.
  • Breeding Bird Census: Approximately 15 plots completed in MD and NY
  • Breeding Bird Survey: Approximately 108 surveys run in MD, VA, NY, NJ, DE, PA, WV, NM, ID, WY, SD, ND, MT, NV, CA, AZ, TX, NE, BC, MI
  • Point Counts for Birds: Thousands taken, in addition to the BBS routes: MD, TX, OH, CA, MI, Central Siberia, Costa Rica
  • Breeding Bird Atlases: Approximately 100 blocks of data submitted for the following states: WV, NY, MD, CA, TX, PA.
  • Breeding and Winter Bird Transect Surveys: Approximately 200 mostly in Maryland.
  • Christmas Bird Counts: Participated in approximately 150.
  • Bird Banding: Banding Permit since 1977. Long-term experience with both feeder banding, and mistnet banding at migration stations and other field stations.
  • Other Surveys: Deer drive counts, drumming counts, nocturnal owl counts, amphibian calling surveys, May Bird Counts, Mid-Winter Bird Counts, Hawk Migration Counts, small mammal trapping, butterfly counts, butterfly transects, wasp hole-nesting surveys, orthopteran surveys, vegetation surveys of many kinds.
  • Natural History: Good background in the identification of vascular plants, birds, amphibians, butterflies, orthoptera, odonata.
  • Tree Identification, logging, and Milling: Co-owner of sawmill and experienced in manufacture of timber and boards from raw logs.
  • Eastern United States native bee identification - specialist in the subgenus Dialictus
  • CESF Wildlife Society Meeting - 1984
  • Wilson Ornithological Society - Utica, NY, 1987.
  • 2nd North American Breeding Bird Atlas Workshop, 1987.
  • American Ornithologists Union - San Francisco, CA, 1987.
  • North American Bluebird Society - Bethesda, MD, 1987. (Paper presented by John Sauer)
  • Second North American Wood Duck Symposium, St. Louis, MO, 1987. (Paper presented by John Sauer)
  • Conference on the Ecology and Conservation of Neotropical Migrant Landbirds - Woods Hole, MA, 1989. (Paper presented by John Sauer)
  • Midwest Raptor Management Symposium - Chicago, 1989
  • Perdix V, Mendota, MN, 1989.
  • American Ornithologists Union, Phoenix, AZ (Paper presented by Russ Greenberg)
  • American Ornithologists Union - Saint Louis, 1990
  • Point Count Workshop, Beltsville, MD, 1991
  • Eastern Bird Banding Association, Milford, PA, 1992
  • Mississippi Flyway Meeting, Nebraska, 1992
  • Conference on Neotropical Migrant Birds, Estes Park, CO, 1992
  • Quail III Symposium, Kansas City, MO, 1993
  • Mist Net Workshop, Marconi Conference Center, California, 1993
  • American Ornithologists Union - Montreal, PQ, 1993
  • 59th North Amer. Wildl. Nat. Resour. Conf., Anchorage, AK, 1994
  • Neotropical Migrant Conference, NJ, 1994
  • Conference on Neotropical Migrant Birds, Cape May, NJ, 1995
  • North American Amphibian Montioring Program, Second Annual Meeting, Hamilton, Ontario, (2 papers)
  • Appalachian Biodiversity Conference, Staunton, VA, 1996
  • North American Amphibian Monitoring Program, Third Annual Meeting, World Wide Web, (2 papers), 1996
  • Amphibian Deformities Workshop, Shenandoah National Park, VA 1997
  • National Environmental Contaminants Meeting, Lake Harmony, PA, 1997
  • DISPro/Park Meetings, Estes Park, CO, 1997
  • Marsh Bird Monitoring Workshop, Laurel, MD, 1998
  • Fourth Conference on the Biology of Plethodontid Salamanders, Highlands, NC, 1998 (2 posters)
  • Joint Meeting of Ichthyologists and Herpetologists, Guelph, ONT, 1998
  • Ecological Society of America, Baltimore, MD, 1998
  • DISPRO Annual Meeting, Point Reyes, CA, 1998
  • Amphibian Monitoring Meeting, Smokies National Park, 1998
  • MAIA Conference, Baltimore, MD, 1998
  • BRD Monitoring Conference, Arizona 1999
  • International Amphibian Day, Baltimore 1999
  • NSF Declining Pollinators Meeting 1999
  • George Wright Society, Valley Forge 2000
  • National Military Fish & Wildlife Association Workshop 2000
  • PWRC Science Meeting, Annapolis, MD 2000
  • Workshop at Raptor Research Foundation, Arkansas 2000
  • PWRC Seminar on Power Analysis in Monitoring Programs 2001
  • IBOY, PWRC 2001
  • University of Maryland, Frostburg, MD, 1993
  • Swarthmore College, 1994
  • USFWS, Northeast Regional Office, Amherst, MA, 1996
  • University of Maine, 1996
  • Maryland Natural History Society, Annual Meeting, Baltimore, MD, 1997
  • Audubon Naturalist Society, 1997
  • Maryland Department of Natural Resources, 1997
  • Solomon?s Island Biological Research Laboratory, 1998
  • SOVON Annual Meeting, The Netherlands, 1998
  • University of Maryland, College Park, MD 1999
  • USFWS Training Center, Shepardstown, WV 1999
  • Adirondack Ecological Center, Newcomb, NY 1999
  • National Zoo, Washington D.C. 2000
  • Hawk Migration Association of North America, 2000
  • North Carolina Herpetological Society, 2000
  • Virginia Ornithological Society Plenary, 2003
  • Alaska Regions Fish and Wildlife Service Biologists, 2003
  • National Park Service/National Arboretum Pollinators Conference, 2004
  • University of Maryland, Entomology Department, 2004
  • Colorado State University, 2004
  • Albemarle County Ivy Creek, 2004
  • University of Maryland, College Park, 2004
  • U.S. National Arboretum, 2004
  • Patuxent Wildlife Research Center, 2005
  • Smithsonian, 2005
  • University of Delaware, 2005
  • Washington D.C. National Park Service, 2005
  • Natural Home Building Colloquium, 2005
  • Droege, S. (Editor and Writer) BBS Monitor Newsletter. 1987-1990.
  • Droege, S. (Editor and Chief Writer) Patuxent Climbing Fern Newsletter, 1988-1990.
  • Droege, S., and J. R. Sauer. 1987. Breeding Bird Survey, 1986 Annual Report. Report, USFWS.
  • Droege, S., and J. R. Sauer. 1988. Breeding Bird Survey, 1987 Annual Report. Report, USFWS.
  • Droege, S. and Others. 1996. Protocols and strategies for monitoring North American amphibians. North American Amphibian Monitoring Program.
  • Droege, S. and Others. 1997. Report of a workshop to develop a North American raptor monitoring strategy. USGS.
  • Droege, S. Ongoing. Evaluations of Pan Traps for Bees.

    Managers' Monitoring Manual -

    BioBlitz -

    Terrestrial Salamander Monitoring Manual -


  1. Sauer, J. R., M. K. Klimkiewicz, and S. Droege. 1987. Population trends of the purple martin in North America, 1966 - 1986. Nature Society News 22:1-2.
  2. Robbins, C. S., J. R. Sauer, R. S. Greenberg, and S. Droege. 1989. Population declines in North American birds that migrate to the neotropics. Proc. Natl. Acad. Sci, USA 86:7658-7662.
  3. Robbins, C. S., S. Droege, and J. R. Sauer. 1989. Monitoring bird populations with Breeding Bird Survey and atlas data. Ann. Zool. Fennici 26:297-304.
  4. Droege, S., and J. R. Sauer 1989. North American Breeding Bird Survey annual summary 1988. U. S. Fish. Wildl. Serv., Biol. Rept. 89(13):1-16.
  5. Sauer, J. R., and S. Droege, editors. 1990. Survey designs and statistical methods for the estimation of avian population trends. U. S. Fish. Wildl. Serv., Biol. Rept. 90(1).
  6. Droege, S. 1990. The North American Breeding Bird Survey. In Sauer, J. R., and S. Droege, editors. USFWS Biol. Rept. 90:1-4.
  7. Sauer, J. R., and S. Droege. 1990. Wood duck population trends from the North American Breeding Bird Survey. Pages 159-165 in L. H. Fredrickson, G. V. Burger, S. P. Havera, D. A. Graber, R. E. Kirby, and T. S. Taylor, eds. Proc. 1988 North Am. Wood Duck Symp., St. Louis, MO.
  8. Droege, S., and J. R. Sauer 1990. North American Breeding Bird Survey annual summary 1989. U. S. Fish. Wildl. Serv., Biol. Rept. 90(8):1-22.
  9. Sauer, J. R., and S. Droege. 1990. Recent population trends of the Eastern Bluebird. Wilson Bull. 102:239-252.
  10. Droege, S., and J. R. Sauer. 1990. Northern Bobwhite, Gray Partridge, and Ring-necked Pheasant population trends (1966-1988) from the North American Breeding Bird Survey Pgs 2-20 in K. E. Church, R. E. Warner, and S. J. Brady, eds. Perdix V: Gray partridge and ring-necked pheasant workshop, Kans. Dept. Wildl. and Parks, Emporia.
  11. Greenberg, R. and S. Droege. 1990. Adaptations to tidal marshes in breeding populations of the Swamp Sparrow. Condor 92:393-404.
  12. Sauer, J. R., S. Droege, and D. Bystrak. 1992. Breeding Bird Survey and bird banding data: Applications to raptor management. in Midwest Raptor Management Symposium and Workshop, Nat. Wildl. Fed., Sci. Tech. Ser.
  13. Sauer, J. R., and S. Droege. 1992. Geographic patterns of population trends of neotropical migrants in North America. Pages 26-42 in J. M. Hagan III and D. W. Johnson, eds. Ecology and conservation of neotropical migrant landbirds. Smithsonian, Washington, D. C.
  14. Church, K. E., J. R. Sauer, and S. Droege. 1994. Population trends of quails in North America. Pages 44-54 in K. E. Church and T. V. Dailey, eds. Quail III: national quail symposium. Kansas Dep. Wildl. and Parks, Pratt.
  15. Link, W. A., Barker, R. J., Sauer, J. R., and S. Droege. 1994. Within-site variability in surveys of wildlife populations. Ecology 95:1097-1108.
  16. Sauer, J. R., D. D. Dolton, and S. Droege. 1994. Mourning dove population trend estimates from Call-count and North American Breeding Bird Surveys. J. Wildl. Manage. 58:506-515.
  17. Droege, S., and Sauer, J. R., 1994, Are more North American Species decreasing than increasing?, Hagemeijer, E. J. M, and Verstrael, T. J., Proceedings Bird Numbers 1992, p. 297-306-*.
  18. Hatfield, J.S., Ricciardi, S.A., Gough, G.A., Bystrak, D., Droege, S., Robbins, C.S. 1994. Distribution and abundance of birds wintering in Maryland, 1988-1993: Maryland Birdllife, v. 50, p. 3-83.
  19. Droege, S., and J. R. Sauer. 1994. Are more North American species decreasing than increasing? Pages 297-306 in E. J. M. Hahemeijer and T. J. Verstrael, eds. Bird Numbers 1992: Distribution, monitoring and ecological aspects. Statistics Netherlands, Voorsburg/Heerlen.
  20. Bishop, C., D. Bradford, G. Casper, S. Corn, S. Droege, G. Fellers, P. Geissler, D. M. Green, R. Heyer, M. Lannoo, D. Larson, D. Johnson, R. McDiarmid, J. Sauer, B. Shaffer, H. Whiteman, and H. Wilbur. A proposed North American Amphibian Monitoring Program. Canadian Association of Herpetologists Bulletin 9:6-13.
  21. Price, J., S. Droege, and A. Price. 1995. The summer atlas of North American birds. Academic Press, London, 364pp.
  22. Ralph, C. J., J. R. Sauer, and S. Droege, eds. 1995. Monitoring bird populations by point counts, USDA Forest Service, Pacific Southwest Research Station, General Technical Report PSW-GTR-149.
  23. Ralph, C. J., S. Droege, and J. R. Sauer. 1995. Managing and monitoring birds using point counts: standards and applications. Pages 161-168 in C. J. Ralph, J. R. Sauer, and S. Droege, eds. Monitoring Bird Populations by Point Counts, USDA Forest Service, Pacific Southwest Research Station, General Technical Report PSW-GTR-149.
  24. Droege, S. 1996. Maryland, efficiency, and birds. Audubon Naturalist News 22 (4): 4-7.
  25. Droege, S., and Blom E. A. T., 1996, Swamp Sparrow, In Robbins, C. S., and Blom, E. A. T., Editors, Atlas of the Breeding Birds of Maryland and the District of Columbia: Pittsburgh, University of Pittsburg Press, p. 408-409.
  26. Droege, S. 1997. Trends in Appalachian bird populations, some speculative notes on the causes, and some thoughts on conservation directions for the region, 1996 Central Appalachian Ecological Integrity Conference, p.
  27. Hadidian, J., Sauer, J. R. C. Swarth, S. Droege, P. Handly, C. Williams, G. Diddan, and J. Huff. 1997. A city-wide breeding bird survey for Washington D.C. Urban Ecosystems 1:87-102.
  28. Greenberg, R., Cordero, P.J., Droege, S., and R. Fleischer. 1998. Morphological Adaptation with no mitochondrial DNA differentiation in the Coastal Plain Swamp Sparrow. Auk 115:706-712
  29. Droege, S. 1999. Birds and landscape changes in Northeastern forests. Pp. 187-190. In Mac, M.J., P.A. Opler, Puckett Haecker, C.E. 1999. Editors. Status and trends of biological resources. Vol. 2. U.S. Department of the Interior, U.S. Geological Survey, Reston, Va.
  30. Droege, S., A. Cyr, J. Larivee. 1998. Checklists: An under-used tool for the inventory and monitoring of plants and animals. Conservation Biology 12:1134-1138.
  31. Gibbs, J.P. Droege, S, and P. Eagle. 1998. Monitoring populations of plants and animals. BioScience.48:935-940.
  32. Droege, S., Mast, W.R., and McCabe, J. 1998. Checking for water in your straw with soil moisture sensors. The Last Straw 24:27.
  33. Greenberg, R. and S. Droege. 1999. On the decline of the Rusty Blackbird (Euphagus carolinus) and the use of ornithological literature to document long-term population Trends. Conservation Biology 13:553-559.
  34. Cook, K., Droege, S., and A.R. Kellogg. 2002. Stomach content analysis of 13 North American toad species. The Bulletin of the Maryland Herpetological Society.
  35. Jung, R.E., Droege, S., Sauer, J.R., and R.B. Landy. 2000. Evaluation of terrestrial and streamside salamander monitoring techniques at Shenandoah National Park. Environmental Monitoring and Assessment 63:65-79
  36. Welsh, H. H. and S. Droege. 2001. A case for using plethodontid salamanders (Family Plethodontidae) for monitoring biodiversity and ecosystem integrity on North American forestlands. Conservation Biology 15:558-569.
  37. Jung, R.E., G.H. Dayton, S.J. Williamson, J.R. Sauer, S. Droege. 2002. An evaluation of population index and evaluation techniques for tadpoles in desert pools. J. Herpetology 36:465-472
  38. Jung, R.E., K.E. Bonine, M.L. Rosenshield, A. de la Reza, S. Raimondo, and S. Droege. 2002. Evaluation of canoe surveys for anurans along the Rio Grande in Big Bend National Park, Texas. Journal of Herpetology 36:390-397.
  39. Sauer, J.R., J. Hadidian, S. Droege, P. Handly, C. Williams, C. Swarth, G. Didden, J. Huff. 2000. DC Birdscape: A program for monitoring neotropical migratory birds in Washington, DC. In Bonney, R., D. N. Pashley, R. J. Cooper, L. Niles. Eds. Strategies for bird conservation: The Partners in flight planning process; Proceedings of the 3rd Partners in Flight Workshop; 1995 October 1-5; Cape May, NJ. Proceedings RMRS-P-16. Ogden, UT: USDA, USFS, RMRS. 281 p.
  40. R. Chalmers and S. Droege. 2002. Validating leaf litter bags as a monitoring technique for Northern 2-lined salamanders (Eurycea bislineata). Wildlife Society Bulletin 30:71-74.
  41. MacKenzie, D.I., J.D. Nichols, G.B. Lachman, S. Droege, J.A. Royle, C.A. Langtimm. 2002. Estimating site occupancy rates when detection probabilities are less than one. Ecology 83:2248-2255.
  42. Beadell, J., R. Greenberg, S. Droege, and J.A. Royle. 2003. Distribution, abundance, and habitat affinities of the Coastal Plain Swamp Sparrow. Wilson Bulletin 115:38-44.
  43. Droege, S., A. van den Berg, and E. Keller. In press. Spring arrival dates of birds in North America: an evaluation of 100 years of data and recommendations for their continued collection. Maryland Birdlife.
  44. Droege, S. and P. Eagle.  2005.  Evaluating Calling Surveys.  In Lannoo, M.J. (Ed.), Amphibian Declines: The Conservation Status Of United States Species (pp. 314 - 319). University of California Press, Berkeley, California..
  45. Russell, K.N., H. Ikerd, and S. Droege. 2005. The potential conservation value of unmowed powerline strips for native bees. Biological Conservation 124:133-148.
  46. Bart, Jonathan, Sam Droege, Paul Geissler, Bruce Peterjohn, and C. John Ralph. 2004. Density estimation in wildlife surveys. Wildlife Society Bulletin 32 (4): 1242-1247..
  47. LeBuhn, G., S. Droege, and M. Carboni. In press. Monitoring methods for solitary bee species using bee bowls in North America. Monitoring the status and trends of pollinators for the first State of the World's Pollinators Report.
  48. Droege, S. and J. Pickering. In press. A new identification tool for Identifying pollinators with and example using North American bees. Monitoring the status and trends of pollinators for the first State of the World's Pollinators Report.
  49. Conway, C. and S. Droege. In review. A unified strategy for monitoring changes in abundance of terrestrial birds associated with North American tidal marshes. In Terrestrial Vertebrates of Tidal Marshes: Evolution, Ecology, and Conservation.
  50. Greenberg, R. , Maldonado, J.E., Droege, S. & McDonald, V.M. 2006. Terrestrial Vertebrates of Tidal Marshes: Evolution, Ecology, and Conservation. Camarillo, CA: Cooper Ornithological Society.
  51. Greenberg, R., Maldonado, J., Droege S., & McDonald M.V. 2006. Tidal Marshes: A Global Perspective on the Evolution and Conservation of Their Terrestrial Vertebrates. BioScience 56, 675-685.
  52. Ascher, J.S., P. Gambino, and S. Droege. 2006. Adventive Hylaeus (Spatulariella) Popov in the New World (Hymenoptera: Apoidea: Colletidae) Proceeding Entomological Society of Washington 108:237-239.
  53. Frampton, M., S. Droege, T. Conrad, S. Prager, and M. H. Richards. 2008. Evaluation of Specimen Preservatives for DNA Analyses of Bees. Journal of Hymenopteran Research 17:195-200.
  54. Franklin, M. , S. Droege, D. Dawson and J.A. Royle. In press. Nightly and Seasonal Patterns of Calling in Common True Katydids (Orthoptera: Tettigoniidae: Pterophylla camellifolia). Journal of Orthoptera Research
  55. Droege, S., C.A. Davis, W.E. Steiner, Jr., and J. Mawdsley. In press. The Lost Micro-Deserts of the Patuxent River: Using Landscape History, Insect and Plant Specimens, and Field Work to Detect and Define a Unique Community. Proceeding Entomological Society of Washington.
  56. Droege, S., V.Tepedino, G.LeBuhn, W. Link, T.Griswold, Q.Chen, C. Conrad. In review. North American Bee Bowl (Hymenoptera: Apiformes)Trap Evaluation 1: Spatial Patterns of Captures.
  57. Caron, D., S. Droege, C. Stragar, D. Tallamy, J. Pesek, H. Harmon. In review. An assesment of two passive trap methods to sample naturally occuring bees at three different sites on the Delmarva Peninsula. J. Kansas Entomological Society.
Updated: 24 August, 2009

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