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Technical Reports


Facka, A. N., G. W. Roemer, V. Mathis, M. Kam, & E. Geffen. 2010. Drought leads to collapse of black-tailed prairie dog populations reintroduced to the Chihuahuan Desert. Journal of Wildlife Management 74: 1752-1762.

Collins, P. W., B. C. Latta & G. W. Roemer. 2009. Does the order of invasive species removal matter? The case of the eagle and the pig. PLoS One 4(9): e7005.doi: 10.1371/journal.pone.0007005. (download pdf)

Roemer, G. W.
, M. E. Gompper and B. Van Valkenburgh. 2009. The ecological role of the mammalian mesocarnivore. BioScience. 59: 165-173. (download pdf)

Bakker, V.J., D. Doak, G.W. Roemer, D. Garcelon, T. Coonan, S. A. Morrison, C. Lynch, K. Ralls and R. Shaw. 2009. Incorporating ecological drivers and parameter uncertainty into a demographic population viability analysis for the Island Fox (Urocyon littoralis). Ecological Monographs.79: 77-108. (download pdf)

Northcott, J., M. C. Andersen, G. W. Roemer, E. L. Fredrickson, M. DeMers & J. Truett. 2008. Spatial analysis of effects of mowing and burning on colony expansion in reintroduced Cynomys ludovicianus (Black-tailed prairie dog). Restoration Ecology. 16(3): 495-502. (download pdf)

Facka, A.N., P.L. Ford, & G. W. Roemer. 2008. A novel approach for assessing density and range-wide abundance of prairie dogs. Journal of Mammalogy 89(2): 356-364. (download pdf)

Knowlton, J., C. Josh Donlan, G. W. Roemer, A. Samaniego-Herrera, B. S. Keitt, B. Wood, A. Aguirre-Muñoz, K. R. Faulkner & B .R. Tershey. 2007. Non-native mammal eradications and the status of insular mammals on the California Channel Islands, U.S.A. and Pacific Baja California Islands, México. Southwestern Naturalist 52:528-540. (download pdf)

Angula, E., G. W. Roemer, L. Berec, J. Gascoigne and F. Courchamp. 2007. Double Allee effects and extinction in the island fox. Conservation Biology 21(4): 1082-1091. (download pdf)

Donlan, C.J., J. Berger, C. E. Bock, J. H. Bock, D. A. Burney, J. A. Estes, D. Foreman, P. S. Martin, G. W. Roemer, F. A. Smith, M. E. Soulé and H. W. Greene. 2006. Pleistocene rewilding: An optimistic agenda for 21st Century conservation. American Naturalist 168(5): 660-681.
(download pdf)

Caut, S., G. W. Roemer, C. J. Donlan & F. Courchamp. 2006. Coupling stable isotopes with bioenergetics to estimate interspecific interactions. Ecological Applications 16: 1893-1900.
(download pdf)

Roemer, G. W. & C. J. Donlan. 2005. Biology, policy and law in endangered species conservation: II. A case history in adaptive management of the island fox on Santa Catalina Island, California. Endangered Species UPDATE 22:144-156. (download pdf)

Donlan, C. J., H. W. Greene, J. Berger, C. E. Bock, J. H. Bock, D. A. Burney, J. A. Estes, D. Foreman, P. S. Martin, G. W. Roemer, F. A. Smith, and M. E. Soulé. 2005. Re-wilding North America. Nature 436:913-914. (download pdf)

Coonan, T. J., C. A. Schwemm, G. W. Roemer, D. K. Garcelon & L. Munson. 2005. Decline of an island fox subspecies to near extinction. Southwestern Naturalist 50(1):32-41. (download pdf)

Andersen, M. C., B. Martin, & G. W. Roemer. 2004. Use of matrix population models to estimate the efficacy of euthanasia versus trap‑neuter-return for management of free-roaming cats. Journal of the American Veterinary Medical Association 225(12):1871-1876. (download pdf)

Roemer, G. W., R. Woodroffe & F. Courchamp. 2004. Predators and prey in the Channel Islands – Response to Dratch et al. and Helgen. Science 305:778. (download pdf)

Roemer, G. W. & C. Josh Donlan. 2004. Biology, policy and law in endangered species conservation: I. The case history of the island fox on the northern Channel Islands. Endangered Species UPDATE 21(1):23-31. (download pdf)

Aguilar, A. G. Roemer, S. Debenham, M. Binns, D. Garcelon, & R. K. Wayne. 2004. High MHC diversity maintained by balancing selection in an otherwise genetically monomorphic mammal. Proceedings of the National Academy of Sciences, USA 101:3490-3494. (download pdf)

Courchamp, F., R. Woodroffe & G. Roemer. 2003.  Removing protected populations to save endangered species. Science 302:1532. (download pdf)

Roemer, G. W. & R. K. Wayne. 2003. Conservation in conflict: The tale of two endangered species. Conservation Biology 17(5):1251-1260. (download pdf)

Roemer, G. W., C. J. Donlan & F. Courchamp. 2002. Golden eagles, feral pigs and insular carnivores: How exotic species turn native predators into prey. Proceedings of the National Academy of Sciences, USA 99: 791-796. (download pdf)

Roemer, G. W., T. J. Coonan, D. K. Garcelon, J. Bascompte, & L. Laughrin. 2001. Feral pigs facilitate hyperpredation by golden eagles and indirectly cause the decline of the island fox. Animal Conservation 4: 307-318. (download pdf)

Roemer, G. W., D. A. Smith, D. K. Garcelon, & R. K. Wayne. 2001. Behavioural ecology of the island fox. Journal of Zoology 255: 1-14 (download pdf)

Roemer, G. W., T. J. Coonan, D. K. Garcelon, C. H. Starbird & J. W. McCall. 2000. Spatial and temporal variation in the seroprevalence of canine heartworm antigen in the island fox. Journal of Wildlife Diseases 36(4):723-728. (download pdf)

Goldstein, D.B, G.W. Roemer, D.A. Smith, D.E. Reich, A. Bergman, & R.K. Wayne. 1999. The use of microsatellite variation to infer patterns of migration, population structure and demographic history: An evaluation of methods in a natural model system. Genetics 151:797-801.
(download pdf)

Garcelon, D.K., G.W. Roemer, R.B. Philips & T.J. Coonan. 1999. Food provisioning by island foxes, Urocyon littoralis, to conspecifics caught in traps. Southwestern Naturalist 44(1):83-86.

Proceedings, Book Chapters and Other Publications

Ford, P. L., M. C. Andersen, E. L. Fredrickson, J. Truett, and G. W. Roemer. 2007. Effects of fire and mowing on expansion of re-established black-tailed prairie dog colonies in Chihuahuan Desert Grassland.  In: Narog, M.G., ed. Proceedings of the 2002 Fire Conference on Managing fire and fuels in the remaining wildlands and open spaces of the southwestern United States. Gen. Tech. Rep. PSW-189, Albany, CA: Pacific Southwest Research Station, USDA Forest Service, 7 pp.

Donlan, C. J., P. S. Martin, & G. W. Roemer. 2007. Lessons from land: Present and past signs of ecological decay and the overture to the Earth’s 6th mass extinction. Pages 14-26 In J. A. Estes, D.P. DeMaster, D.F. Doak, T.M. Williams & R.L. Brownell, Jr., Eds. Whales, Whaling and Ocean Ecosystems. University of California Press. Berkeley. (download pdf)

Roemer, G. W., T. J. Coonan, L. Munson & R. K. Wayne. 2004. The Island fox. Pages 97-105 In: C. Sillero-Zubiri, M. Hoffman and D. W. Macdonald, eds. Canids: Foxes, wolves, jackals and dogs,  Status survey and conservation action plan, 2nd edition.  IUCN/SSC Canid Specialists Group, The World Conservation Union. Gland, Switzerland. (download pdf)

Roemer, G. W. 2004. Evolution, behavioural ecology, and conservation of island foxes. Pages 173 – 183 in D. W. Macdonald and C. Sillero-Zubiri, eds. The Biology and Conservation of Wild Canids, Oxford University Press, 432 pp. (download pdf)

Coonan, T. J., C. A. Schwemm, G. W. Roemer, & G. Austin. 2000. Population decline of island foxes (Urocyon littoralis) on San Miguel Island. Pages 289-297 in D. R. Browne, K. L. Mitchell, and H. W. Chaney, eds. Proceedings of the Fifth Channel Islands Symposium. U.S. Department of the Interior, Minerals Management Service, Pacific OCS Region, Camarillo, California.

Roemer, G.W., D.K. Garcelon, T.J. Coonan, & C. Schwemm. 1994. The use of capture-recapture methods for estimating, monitoring, and conserving island fox populations. Pages 387-400 in W.L. Halvorsen and G.J. Maender, eds. The Fourth California Islands Symposium: update on the status of resources. Santa Barbara Museum of Natural History, Santa Barbara, California.

Garcelon, D. K., & G. W. Roemer.  1990.  The reintroduction of bald eagles on Santa Catalina Island. Pages 63-68 in P.J. Bryant and J. Remington, eds. Endangered  Wildlife and Habitats in Southern California. Memoirs of the Natural History Foundation of Orange County, Volume 3.  Newport Beach, California. (download pdf)

Garcelon, D. K., & G. W. Roemer, Editors.  1988.  Proceedings of the International Symposium on Raptor Reintroduction, 1985.  Institute for Wildlife Studies, Arcata, California. 148 pp.

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Dr. Gary W. RoemerEmail: