Staff Publications
Many books on shelves

Brian R. Hudgens,
Research Ecologist

 

Publications

Peer Reviewed

Sanchez, J. N. and B. R. Hudgens. 2015. Interactions between density, home range behaviors, and contact rates in the Channel Island fox (Urocyon littoralis). Ecology and Evolution. PDF

Coonan, T. J., V. Bakker, B. R. Hudgens, C. L. Boser, D. K. Garcelon, and S. A. Morrison. 2014. On the fast track to recovery: island foxes on the northern Channel Islands. Monographs of the Western North American Naturalist, 7, 373-381.

Breckheimer, I., N. M. Haddad, W. F. Morris, A. M. Trainor, W. R. Fields, R. Jobe, B. R. Hudgens, A. Moody, and J. R. Walters. 2014. Defining and evaluating the umbrella species concept for conserving and restoring landscape connectivity. Conservation Biology, 28(6): 1584-1593.

Curtis, J. A., L. E. Flint, A. L. Flint, J. D. Lundquist, B. R. Hudgens, et al. 2014. Incorporating cold-air pooling into downscaled climate models increases potential refugia for snow-dependent species within the Sierra Nevada ecoregion, CA. PLoS ONE 9(9): e106984. doi:10.1371/journal.pone.0106984

Ralls, K., J. N. Sanchez, J. Savage, T. J. Coonan, B. R. Hudgens, and B. L. Cypher (2013). Social relationships and reproductive behavior of island foxes inferred from proximity logger data.  Journal of Mammalogy 94:1185–1196.

Hudgens B. R., W. F. Morris, N. M. Haddad, W. R. Fields, J. W. Wilson, D. Kuefler, and T. Jobe (2012).  How complex do models need to be to predict dispersal of threatened species through matrix habitats.  Ecological Applications.  22:1701–1710.

Young J. K., B. R. Hudgens, and D. K. Garcelon (2012).  Estimates of energy and prey requirements of wolverines.  Northwest Science.  86:221-229.

Haddad, N. M., B. R. Hudgens, E. I. Damschen, D. J. Levey, J. L. Orrock, J. J. Tewksbury, and A. J. Weldon (2011).  Assessing positive and negative ecological effects of corridors.  Pages 475-503 in J. Liu, V. Hull, A.T. Morzillo, and J.A. Wiens, Sources, Sinks, and Sustainability, Cambridge University Press, Cambridge, UK

Hudgens, B.R., F. Beaudry, T. L. George, S. Kaiser, and N. Munkwitz (2011).  Shifting threats faced by the San Clemente sage sparrow.  Journal of Wildlife Management. 75(6):1350-1360.

Hudgens, B.R., T.J. Coonan, K. Roney Faulkner, and D. K. Garcelon (2011). Ghost prey and missing conflicts: reinterpreting the implications of bald eagle diet composition on the California Channel Islands. Proceedings of the National Academy of Sciences.  <www.pnas.org/cgi/doi/10.1073/pnas.1012339108>

Hudgens, B.R. and Garcelon D. K. (2011). Induced changes in island fox (Urocyon littoralis) activity do not mitigate extinction threat posed by a novel predator.  Oecologia. 165:699.

Kuefler, D., B.R. Hudgens, N. M. Haddad, W. F. Morris, and N. Thurgate. (2010).  The conflicting role of matrix habitats as conduits and barriers for dispersal.  Ecology.  91:944-250. 

Hudgens, B.R., N. N. Johnson, J. E. Bradley, and A. S. Bridges (2009).  Benefits of supplemental feeding are climate dependent in the San Clemente Loggerhead Shrike. In: Damiani, C.C. and D.K. Garcelon (eds.). 2009. Proceedings of the 7th California Islands Symposium. Institute for Wildlife Studies, Arcata, CA. pp. 315–325.

Haddad N. M., B.R. Hudgens, C. Damiani, K. Gross, D. Kuefler, and K. Pollock.  (2008).  Optimal population monitoring for rare butterflies.  Conservation Biology. 22:929-940.

Kuefler, D., N. M. Haddad, S. Hall, B.R. Hudgens, B. A. Bartel, and E. Hoffman (2008). Distribution, population structure, and habitat use of the endangered St. Francis' satyr butterfly, Neonympha mitchellii francisci. American Midland Naturalist. 159:298-320.

Hudgens B.R. (2007).  Quantifying spatial correlations in extinction risk for an aphid metapopulation.  Population Ecology. 49:63-73.

Gross K., E.J. Kalendra1, B.R. Hudgens, and N.M. Haddad (2007).  Accommodating stochastic dynamics in estimates of butterfly abundance. Population Ecology. 49:191-200.

Hudgens, B.R. and N. M. Haddad (2003).  Predicting which species will benefit from corridors in fragmented landscapes from population growth models.  American Naturalist. 161:808-820.

Moyle, L.C., J.R. Stinchcombe, B.R. Hudgens, and W.F. Morris (2003). Conservation genetics in the recovery of endangered animal species: a review of US endangered species recovery plans (1977-1998).  Animal Biodiversity and Conservation. 26:85-95.

Morris, W. F., P. L. Bloch, B.R. Hudgens, L. C. Moyle, and J. R. Stinchcombe (2002). Population Viability analysis in endangered species recovery planning:  Past use and recommendations for future improvement.  Ecological Applications.  12:708-712.

Stinchcombe, J., L. C. Moyle, B.R. Hudgens, P. L. Bloch, S. Chinnadurai, and W. F. Morris. (2002). The influence of the academic conservation biology literature on endangered species recovery planning. Conservation Ecology 6(2):15. <http://www.consecol.org/vol6/iss2/art15>

Hudgens B.R. (1997) Nest predation avoidance by Blue-billed Malimbes M. Nitens (Ploceinae).  Ibis.  139:692-704.

Technical Reports

Hudgens, B. R., T.W. Vickers, D. K. Garcelon, and J. N. Sanchez.  (2011)  Epidemic Response Plan for San Clemente Island Foxes.  Unpublished report prepared for the U. S. Navy by the Institute for Wildlife Studies, Arcata, California.

Docherty, Teegan D., Andrew S. Bridges, Brian Hudgens, and David K. Garcelon.  (2010)  Population monitoring of the San Clemente sage sparrow-2009.  Final Report.  Unpublished report prepared by the Institute for Wildlife Studies for the United States Navy, Navy Region Southwest, Natural Resources Office, San Diego, California.

Garcelon, D. K. and B.R. Hudgens.  (2009) Island Fox Monitoring and Demography on San Nicolas Island–2007. Unpublished report prepared by the Institute for Wildlife Studies, Arcata, California.

Hudgens B., F. Ferrara, and D. Garcelon. (2008) Digital radio-telemetry monitoring of San Nicolas Island foxes.  Final Report to Department of Defense.

Kaiser, S.A., B.R. Hudgens, E.L. Kershner, K. Brock, T. Mizerek and D.K. Garcelon.  (2008)  A management plan for the San Clemente sage sparrow (Amphispiza belli clementeae) on San Clemente Island.  Unpublished report prepared by the Institute for Wildlife Studies for the U.S. Navy, Navy Region Southwest, Natural Resources Office, San Diego, California. 

Simmons D., A. Bridges, B. Hudgens, D. Garcelon.  (2008)  San Clemente loggerhead shrike predator research and management program- 2007.  Report to U.S. Navy.

Hudgens B., Ferrara F., and D. Garcelon.  (2007) Remote monitoring of island foxes.  Report to Department of Defense.

Haddad N., D. Woodward, B. Hudgens, N. Davidai, W. Fields, and M. Chesser.  (2007)  Status and ecology of the Northern Pine Snake, Southern Hognose Snake, Tiger Salamander, and Carolina Gopher Frog on Ft. Bragg, NC.  Final Report to Ft Bragg for work conducted 2004-6

Hudgens B.R., and D.K. Garcelon.  (2006) Winter Carnivore Survey Finds that Wolverines (Gulo gulo) are Likely Extirpated from Sequoia-Kings Canyon National Parks.  Report to Sequoia-Kings Canyon National Parks

Bradley, J. E., S. W. Stuart, B. Hudgens, and D. Garcelon.  (2006).  Draft Breeding Report - 2006 Population Monitoring of the San Clemente Loggerhead Shrike on NALF, San Clemente Island, California, U.S. Navy, Environmental Department, Southwest Division, Naval Facilities Engineering Command, San Diego, California. 

Garcelon D.K., G.A. Schmidt and B.R. Hudgens.  (2006) Release plan for Captive Island Foxes (Urocyon littoralis santacruzae) on Santa Cruz Island, California–2006

Schmidt, G.A., B.R. Hudgens, and D.K. Garcelon.  (2006) Island fox monitoring and research on Naval Auxiliary Landing Field, San Clemente Island, California, Final report: May 2004-June2005.  Unpublished report prepared by Institute for Wildlife Studies, Arcata, CA. 

Schmidt, G.A., B.R. Hudgens, and D.K. Garcelon.  (2006) Island Fox Monitoring and Demography on San Nicolas Island–2006. Unpublished report prepared by the Institute for Wildlife Studies, Arcata, California.

Turner, Jennifer M., Sara A. Kaiser, Brian R. Hudgens, Eric L. Kershner, and David K. Garcelon.  (2006). Population Monitoring of the San Clemente Sage Sparrow-2005. Draft Annual Report. Unpublished report prepared by the Institute for Wildlife Studies for the United States Navy, Navy Region Southwest, Natural Resources Office, San Diego, California. 110 pp. + Electronic Appendices.

Woodward, D., B. Hudgens, and N. Haddad.  (2005) Status and ecology of northern pine snake, southern hognose snake, tiger salamander and Carolina gopher frog on Fort Bragg, NC.  Report to Fort Bragg.

Haddad, N., D. Kuefler and B. Hudgens.  (2005) Ongoing monitoring of Saint Francis Satyr Butterfly Populations.  Report to Fort Bragg

Haddad, N., D. Kuefler, and B. Hudgens.  (2004)  Developing techniques and protocols for monitoring St. Francis Satyr.  Report to Fort Bragg

Haddad, N., D. Kuefler, and B. Hudgens.  (2003)  Evaluating population viability, and potential restoration of the St. Francis Satyr butterfly.  Report to Fort Bragg

Invited Talks and Presentations at National Meetings

“Incorporating climate change into evaluating the suitability of the Sierra Nevada for wolverine reintroduction.” Society for Conservation Biology Annual Meetings 2013. PDF (poster)

“Using movement behaviors to assess dispersal routes in complex landscapes.” Society for Conservation Biology Annual Meetings 2010.

“Using movement behaviors to determine connectivity in complex  landscapes.”  Partners in Environmental Technology Technical Symposium & Workshop 2009

“Using population models to guide management of the San Clemente Sage sparrow (Amphispiza belli clementeae).” Ecological Society of America Annual Meetings 2009

“Sampling the nonexistent?  Evaluating the presence/absence of wolverines (Gulo gulo) in the Sierra Nevada” 2007 Ecological Society of America

“Better than Bigfoot: Searching for wolverines in Sequoia-Kings Canyon National Parks.” 2006 Humboldt State University.

 “Better than Bigfoot: Searching for wolverines in Sequoia-Kings Canyon National Parks.” 2005 Redwood Sciences Lab, Pacific Southwest Research Station.

“Life history of the Eastern tiger salamander and Carolina gopher frog on Fort Bragg.”  2005 Fort Bragg, NC Endangered Species Branch and Sandhills Environmental Center.

“Variation in patch quality and the importance of patch location in habitat restoration strategies for an endangered butterfly.” 2004 Ecological Society of America Annual Meetings

“Variation in patch quality and the importance of patch location in habitat restoration strategies.” PRBO Conservation 2004

“Determining if and when the spatial arrangement of habitat affects aphid population dynamics.” Harvey Mudd College 2002

“Use of simple models to predict conservation benefits of habitat corridors” with Nick Haddad.  2001 Ecological Society of America Annual Meetings

"When does migration matter in managing multiple populations?" 2000 Ecological Society of America Annual Meetings

"The role of predation and patch distribution in aphid metapopulation dynamics." 1999 Ecological Society of America Annual Meetings

"How do prairie dogs and gophers affect aphids?" 1997 Ecological Society of America Annual Meetings