Patuxent Wildlife Research Center

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Endangered Species - current studies

Sarah Converse

Email: sconverse@usgs.gov

USGS Professional Page: https://profile.usgs.gov/sconverse

Areas of Study

Ecology and Management of Wild and Captive Whooping Cranes

Population Viability of the Eastern Migratory Population of Whooping Cranes (Grus americana)

Publications

Brown, M. E., S. J. Converse, J. N. Chandler, C. Shafer, J. L. Brown, C. L. Keefer, and N. Songsasen. 2016. Female gonadal hormones and reproductive behaviors as key determinants of successful reproductive output of breeding Whooping Cranes (Grus americana). General and Comparative Endocrinology 230-231:158-165. Abstract

Lunn, N. J., S. Servanty, E. V. Regehr, S. J. Converse, E. Richardson, and I. Stirling. 2016. Demography of an apex predator at the edge of its range – impacts of changing sea ice on polar bears in Hudson Bay. Ecological Applications Online Early February 25 Abstract

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Jeff Hatfield

Email: jhatfield@usgs.gov

USGS Professional Page: https://profile.usgs.gov/jhatfield

Areas of Study

Survival and Reintroduction of the Laysan Teal

Publications

Duarte, A., J. S. Hatfield, T. M. Swannack, M. R. J. Forstner, M. C. Green, and F. W. Weckerly. 2016. Simulating range-wide population and breeding habitat dynamics for an endangered woodland warbler in the face of uncertainty. Ecological Modelling 320(7691):52-61. Abstract

Duarte, A., F. W. Weckerly, M. Schaub, and J. S. Hatfield. 2016. Estimating golden-cheeked warbler immigration: implications for the spatial scale of conservation. Animal Conservation 19(1):65-74. Abstract

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Allan O’Connell

Email: aoconnell@usgs.gov

USGS Professional Page: https://profile.usgs.gov/aoconnell

Areas of Study

Assessing Endangered Marsh Rabbit and Woodrat Habitat use and Predator Population Dynamics

Publications

O'Connell, A. F. 2015. A hidden view of wildlife conservation: How camera traps aid science, research and management. Wildlife Professional 9(3):56-59.

Parsons, A. W., T. R. Simons, K. H. Pollock, M. K. Stoskopf, J. J. Stocking, and A. F. O'Connell. 2015. Camera traps and mark-resight models: The value of ancillary data for evaluating assumptions. Journal of Wildlife Management 79(7):1163-1172. Abstract

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Glenn Olsen

Email: golsen@usgs.gov

USGS Professional Page: https://profile.usgs.gov/golsen

Areas of Study

The Release of Parent-Reared Whooping Crane Colts into the Eastern Migratory Population

A Vaccination Program to Protect Endangered Whooping Cranes from Encephalitis Virus

Publications

Porter, M. L., A. C. N. Kingston, R. McCready, E. G. Cameron, C. M. Hofmann, L. Suarez, G. H. Olsen, T. W. Cronin, and P. R. Robinson. 2014. Visual pigments, oil droplets, lens, and cornea characterization in the whooping crane (Grus americana) . Journal of Experimental Biology 217:3883-3890. Abstract

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J. Andy Royle

Email: aroyle@usgs.gov

USGS Professional Page: https://profile.usgs.gov/aroyle

Areas of Study

Spatial Capture-Recapture Models to Estimate Abundance and Density of Animal Populations

Publications

Kendall, K. C., A. C. Macleod, K. L. Boyd, J. Boulanger, J. A. Royle, W. F. Kasworm, D. Paetkau, M. F. Proctor, K. Annis, and T. A. Graves. 2015. Density, distribution, and genetic structure of grizzly bears in the Cabinet-Yaak Ecosystem. Journal of Wildlife Management Online Early November 15 Abstract

Sollmann, R., B. Gardner, R. B. Chandler, D. B. Shindle, D. P. Onorato, J. A. Royle, and A. F. O'Connell. 2013. Using multiple data sources provides density estimates for endangered Florida panther. Journal of Applied Ecology. 50(4):961-968. Abstract

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Michael Runge

Email: mrunge@usgs.gov

USGS Professional Page: https://profile.usgs.gov/mrunge

Areas of Study

Adaptive Management for Threatened and Endangered Species

Modeling, Estimation, and Adaptive Management of Florida Manatees

Modeling, Estimation, and Adaptive Management of Golden and Bald Eagle Fatalities on Wind Facilities

Publications

Runge, M. C., C. A. Langtimm, J. Martin, and C. J. Fonnesbeck. 2015. Status and threats analysis for the Florida manatee (Trichechus manatus latirostris), 2012. Open-File Report 201-1083. U.S. Geological Survey. 33 pp. Abstract

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Last Updated: June 2016

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