Staff Publications
Many books on shelves

Andrew S. Bridges,
Research Ecologist

 

Publications

Book chapters

Bridges, Andrew S., and Andrew Noss.  2011.  Behavior and Activity.  Pages 57–69 in Allan F. O’Connell, Jr., James D. Nichols, and U. K. Karanth, editors. Camera Traps in Animal Ecology:  Methods and Analyses. Springer Press Inc, Tokyo, Japan.

 

Peer-reviewed

Bridges, A.S., J.N. Sanchez, D.S. Biteman. 2015. Spatial ecology of invasive feral cats on San Clemente Island: implications for control and management. Journal of Mammalogy 96 (1):81-89.

Higgins, T.W., A.S. Bridges, and J.N. Sanchez. 2015. Spatial ecology of invasive black rats (Rattus rattus) on San Clemente Island, California. The Southwestern Naturalist, 60(2-3):186-192.

Bridges, Andrew S., Michael R. Vaughan, and Josephine A. Fox.  2011.  Reproductive ecology of American black bears in the Alleghany Mountains of Virginia, USA.  Journal of Wildlife Management 75:1137–1144. PDF

Bridges, Andrew S., Michael R. Vaughan, and Josephine A. Fox.  2011.  American black bear estrus and parturition in Virginia.  Ursus 22:1–8. PDF

Hudgens, Brian R., Naira N. Johnson, James E. Bradley and Andrew S. Bridges.  2009.  Benefits of supplemental feeding are climate dependent in the San Clemente Loggerhead Shrike.  Proceedings of the California Islands Symposium 7:315–325.

Bridges, Andrew S., Michael R. Vaughan, and Sybille A. Klenzendorf.  2004.  Seasonal variation in American black bear activity patterns: quantification via remote photography.  Wildlife Biology 10:177–184. PDF

Bridges, Andrew S., Josephine A. Fox, Colleen Olfenbuttel, and Michael R. Vaughan.  2004.  American black bear denning behavior: observations and applications using remote photography.  Wildlife Society Bulletin 32:183–187. PDF

Bridges, Andrew S., Colleen Olfenbuttel, and Michael R. Vaughan.  2002.  A mixed regression model to estimate black bear cub age.  Wildlife Society Bulletin 30:1253–1258. PDF

Bridges, Andrew S., Markus J. Peterson, Nova J. Silvy, Fred E. Smeins, and X. Ben Wu.  2002.  Landscape-scale land-cover change and long-term abundance of scaled quail and northern bobwhite in Texas.  Quail V:161–167.

Bridges, Andrew S., Markus J. Peterson, Nova J. Silvy, Fred E. Smeins, and X. Ben Wu.  2001.  Differential influence of weather on regional quail abundance in Texas.  Journal of Wildlife Management 65:10–18. PDF

Silvy, Nova J., Markus J. Peterson, Jon R. Purvis, and Andrew S. Bridges.  2000.  Relationships of fur market conditions to Texas quail populations.  Proceedings of the Annual Conference of the Southeastern Association of Fish and Wildlife Agencies 54:266–273.

Bridges, Andrew S., and Michael E. Dorcas.  2000.  Temporal variation in anuran calling behavior: implications for surveys and monitoring programs. Copeia 2000:587–592. PDF

 

Technical reports, theses, and popular articles

Biteman, Daniel S., Taylor W. Higgins, Andrew S. Bridges, and David K. Garcelon. 2012.  Predator Research Ecology and Management in Support of the Recovery of the San Clemente Loggerhead Shrike on San Clemente Island – 2011 Final Report.  U. S. Navy, Naval Facilities Engineering Command Southwest, San Diego, California.              

Stahl, Justyn T., Nicole J. Desnoyers, Andrew S. Bridges, and David K. Garcelon.  2012.  San Clemente Loggerhead Shrike Release and Monitoring Program – 2011 Final Report.  U.S. Navy, Naval Facilities Engineering Command Southwest, San Diego, California, USA.

Ehlers, Shannon E., Laura S. Duval, Andrew S. Bridges, Brian Hudgens, and David K. Garcelon.  2012.  Population monitoring of the San Clemente sage sparrow – 2011 Final Report.  U.S. Navy, Naval Facilities Engineering Command Southwest, San Diego, California, USA.

Biteman, Daniel S., Taylor W. Higgins, Andrew S. Bridges, David K. Garcelon.  2011.  Predator Research and Management in Support of the Recovery of the San Clemente Loggerhead Shrike on San Clemente Island – 2010 Final Report.  U. S. Navy, Naval Facilities Engineering Command Southwest, San Diego, California. 

Docherty, Teegan D., Andrew S. Bridges, Shannon Ehlers, Brian Hudgens, and David K. Garcelon.  2011.  Population monitoring of the San Clemente sage sparrow – 2010 Final Report.  U.S. Navy, Naval Facilities Engineering Command Southwest, San Diego, California, USA.

Maley, Michelle B., Rachel S. Sprague, Andrew S. Bridges, and David K. Garcelon.  2011.  San Clemente Loggerhead Shrike Release Program – 2010 Final Report.  U.S. Navy, Naval Facilities Engineering Command Southwest, San Diego, California, USA.

Stahl, Justyn T., Jonathan P. Gunther, Nicole J. Desnoyers, Andrew S. Bridges, and David K. Garcelon.  2011.  San Clemente Loggerhead Shrike Monitoring Program – 2010 Final Report.  U.S. Navy, Naval Facilities Engineering Command Southwest, San Diego, California, USA.

Biteman, Daniel S., Leland S. Brown, Andrew S. Bridges, David K. Garcelon.  2010.  Predator Research and Management in Support of the Recovery of the San Clemente Loggerhead Shrike on San Clemente Island – 2009 Final Report. U.S. Navy, Naval Facilities Engineering Command Southwest, San Diego, California, USA.

Biteman, Daniel S., Andrew S. Bridges, David A. Simmons, Brian R. Hudgens, David K. Garcelon.  2010.  Predator Research and Management in Support of the Recovery of the San Clemente Loggerhead Shrike on San Clemente Island – 2008 Final Report.  U. S. Navy, Naval Facilities Engineering Command Southwest, San Diego, California. 

Bridges, Andrew S., Daniel Biteman, David K. Garcelon, and Linda Munson.  2010.  Research study on the pathology and veterinary services for island fox on San Clemente Island – 2009 Final Report.  U.S. Navy, Naval Facilities Engineering Command Southwest, San Diego, California, USA.

Docherty, Teegan D., Andrew S. Bridges, Brian Hudgens, and David K. Garcelon.  2010.  Population monitoring of the San Clemente sage sparrow – 2009 Final Report.  U.S. Navy, Naval Facilities Engineering Command Southwest, San Diego, California, USA.

Sprague, Rachel S.,  Michelle B. Maley, Andrew S. Bridges, and David K. Garcelon.  2010.  San Clemente Loggerhead Shrike Release Program – 2009 Final Report.  U.S. Navy, Naval Facilities Engineering Command Southwest, San Diego, California, USA.

Stahl, Justyn T., Mathew G. Hethcoat, Jennifer G. Yoo, Andrew S. Bridges, and David K. Garcelon.  2010.  San Clemente Loggerhead Shrike Monitoring Program – 2009 Final Report.  U.S. Navy, Naval Facilities Engineering Command Southwest, San Diego, California, USA.

Stahl, Justyn T., Teegan D. Docherty, Andrew S. Bridges, Brian Hudgens, and David K. Garcelon.  2010.  Population monitoring of the San Clemente sage sparrow – 2009 Final Report.  U.S. Navy, Naval Facilities Engineering Command Southwest, San Diego, California, USA.

Bridges, Andrew S., David K. Garcelon, Linda Munson, T. Winston Vickers, and Daniel Biteman.  2009.  Research study on the pathology and veterinary services for island fox on San Clemente Island – 2008 Final Report.  U.S. Navy, Naval Facilities Engineering Command Southwest, San Diego, California, USA.

Fidorra, Jason C., Anne M. Easley, Michelle B. Maley, Andrew S. Bridges, and D.K. Garcelon.  2009.  San Clemente Loggerhead Shrike Release Program – 2008 Final Report.  U.S. Navy, Naval Facilities Engineering Command Southwest, San Diego, California, USA.

Stahl, Justyn T., Mathew G. Hethcoat, Jennifer G. Yoo, Andrew S. Bridges, and David K. Garcelon.  2009.  San Clemente Loggerhead Shrike Monitoring Program – 2008 Final Report.  U.S. Navy, Environmental Department, Naval Facilities Engineering Command Southwest, San Diego, California, USA. 

Bradley, James E., Catherine Craig, Naira N. Johnston, Andrew S. Bridges, and David K. Garcelon. 2008.  Population Monitoring of the San Clemente Loggerhead Shrike – 2007 Final Report.  U. S. Navy, Natural Resources Management Branch, Southwest Division Naval Facilities Engineering Command, San Diego, California, USA.

Fidorra, Jason C., Anna M. Easley, Michelle B. Maley, Anne M. Fejes, Andrew S. Bridges, and David K. Garcelon.  2008.  San Clemente Loggerhead Shrike Release Program – 2007 Final Report.  U. S. Navy, Natural Resources Management Branch, Southwest Division Naval Facilities Engineering Command, San Diego, California, USA.

Simmons, David A., Andrew S. Bridges, Brian R. Hudgens, David K. Garcelon.  2008.  San Clemente Loggerhead Predator Research and Management Program – 2007 Final Report.  U. S. Navy, Natural Resources Management Branch, Southwest Division Naval Facilities Engineering Command, San Diego, California, USA.

Bridges, Andrew S.  2005.  Population ecology of black bears in western Virginia.  Dissertation. Virginia Polytechnic Institute and State University.  Blacksburg, Virginia, USA.  

Bridges, Andrew S., and Colleen Olfenbuttel.  2003.  Concluding the Virginia Cooperative Alleghany Bear Study. International Bear News, Portland, Oregon, USA.

Bridges, Andrew S., Daniel J. Lee, Colleen Olfenbuttel, Debra M. O’Neil, and Michael R.  Vaughan.  2002. The Cooperative Alleghany Bear Study.  8th Annual Report.  Blacksburg, Virginia, USA.

Bridges, Andrew S., Sybilla A. Klenzendorf, Rachael M. Gray, Daniel J. Lee, Colleen Olfenbuttel, Debra M. O’Neil, and Michael R. Vaughan.  2001.  The Cooperative Alleghany Bear Study.  7th Annual Report.  Blacksburg, Virginia, USA.

Klenzendorf, Sybilla A., Andrew S. Bridges, Rachael M. Gray, Daniel J. Lee, Colleen Olfenbuttel, Debra M. O’Neil, and Michael R. Vaughan.  2000.  The Cooperative Alleghany Bear Study.  6th Annual Report.  Blacksburg, Virginia, USA.

Bridges, Andrew S.  1999.  Abundance of northern bobwhite and scaled quail in Texas: influence of weather and land-cover change.  Thesis, Texas A&M University, College Station, Texas, USA.

Bridges, Andrew S.  1998.  Snakes in southern myths and folklore.  Pg. 28 In: J. W. Gibbons and Patricia J. West (eds.) Snakes of Georgia and South Carolina.  Savannah River Ecology Laboratory Herp Outreach Publication 1, Aiken, South Carolina, USA.

 

Professional Presentations

Bridges, Andrew S., Daniel S. Biteman, David K. Garcelon, Melissa A. Booker, and  Jessica N. Sanchez. Know thy enemy: Research towards understanding an invasive carnivore population and mitigating its impacts on threatened island endemics.  26th International Congress for Conservation Biology. July 21-25, 2013. Baltimore, Maryland, USA. 

Biteman, Daniel S., Andrew S. Bridges, David K. Garcelon, Taylor W. Higgins, and Melissa A. Booker.  2012.  Long-term dietary patterns of invasive feral cats and associated implications for listed island endemics of San Clemente Island, California.  19th Annual Conference of The Wildlife Society.  Portland, Oregon, USA. 

Higgins, Taylor W., Andrew S. Bridges, Jessica N. Sanchez, Shauna N. King, Erik J. Lundgren, Daniel S. Biteman, and Melissa A. Booker.  2012.  Spatial ecology of invasive black rats on San Clemente Island, California.  19th Annual Conference of The Wildlife Society.  Portland, Oregon, USA.

Bridges, Andrew S., Daniel S. Biteman, Melissa A. Booker, Susan M. Farabaugh, David K. Garcelon, Justyn T. Stahl, Sandra M. Vissman.  2012.  Two decades of recovery: how intensive, expensive, and adaptive management retrieved the endangered San Clemente loggerhead shrike from the brink of extinction.  4th International Wildlife Management Congress, Durban, South Africa.

Desnoyers, Nicole J., Stahl, Justyn T., Andrew S. Bridges, David K Garcelon, and Melissa A. Booker.  2012.  Changes in nesting substrate use by Loggerhead Shrikes in a recovering landscape and implications for nesting success.  130th Meeting of the American Ornithologists’ Union.  Vancouver, British Columbia, Canada. 

Ehlers, Shannon E., Andrew S. Bridges, David K. Garcelon, and Melissa A. Booker.  2012.  Quantifying survival and indentifying predators of the threatened island-endemic San Clemente sage sparrow.  130th Meeting of the American Ornithologists’ Union.  Vancouver, British Columbia, Canada.

Stahl, Justyn T., Andrew S. Bridges, David K Garcelon, and Melissa A. Booker. 2012.  The benefits of earlier nesting in the San Clemente loggerhead shrike.  130th Meeting of the American Ornithologists’ Union.  Vancouver, British Columbia, Canada. 

Biteman, Daniel S., Andrew S. Bridges, and David K. Garcelon.  2012.  Innovative technology for predator research and management supporting listed species recovery on the Naval Auxiliary Landing Field, San Clemente Island, California.  Western Section of the Wildlife Society.  Sacramento, California, USA. 

Biteman, Daniel S., Andrew S. Bridges, David K. Garcelon, and Melissa A. Booker. 2011. Applications of technology for  research and protection of island-endmic avifauna on San Clemente Island, California.  18th Annual Conference of The Wildlife Society.  Waikoloa, Hawaii, USA. 

Ehlers, Shannon E., Andrew S. Bridges, Teegan D. Docherty, David K. Garcelon, and Melissa A. Booker.  2011.  Survival of a threatened sage sparrow on San Clemente Island.  18th Annual Conference of The Wildlife Society.  Waikoloa, Hawaii, USA. 

Stahl, Justyn T., Andrew S. Bridges, Teegan D. Docherty, David K. Garcelon, and Melissa A. Booker.  2011.  Factors affecting reproductive success of the endangered San Clemente loggerhead shrike.  18th Annual Conference of The Wildlife Society.  Waikoloa, Hawaii, USA.         

Docherty, Teegan D., Andrew S. Bridges, Brian K. Hudgens, and David K. Garcelon.  2011.  Survival of juvenile San Clemente sage sparrows on San Clemente Island, California.  Western Section of the Wildlife Society.  Riverside, California, USA. 

Biteman, Daniel S., Andrew S. Bridges, David K. Garcelon, Justyn T. Stahl, and Melissa A. Booker.  2010.  Predation at San Clemente loggerhead shrike nests: Evaluation and quantification via remote video-camera systems.  128th Meeting of the American Ornithologists’ Union.  San Diego, California, USA. 

Docherty, Teegan D., Andrew S. Bridges, Brian K. Hudgens, David K. Garcelon, and Melissa A. Booker.  2010.  Survival of juvenile San Clemente sage sparrows on San Clemente Island, California.  128th Meeting of the American Ornithologists’ Union.  San Diego, California, USA. 

Sprague, Rachel S. Andrew S. Bridges, Justyn.T. Stahl, David K Garcelon, Susan M. Farabaugh and Melissa A. Booker.  2010.  Post-release survival and reproductive success of captive-bred San Clemente loggerhead shrikes. 128th Meeting of the American Ornithologists’ Union.  San Diego, California, USA. 

Stahl, Justyn T., Andrew S. Bridges, Rachel S. Sprague, David K Garcelon, Susan M. Farabaugh and Melissa A. Booker.  2010.  Progress toward recovery of the endangered San Clemente loggerhead shrike.  128th Meeting of the American Ornithologists’ Union.  San Diego, California, USA. 

Bridges, Andrew S., Sandra M. Baldwin, Melissa A. Booker, Catherine Craig, Susan M. Farabaugh, Jason C. Fidorra, David K. Garcelon, David A. Simmons, Sandra M. Vissman.  2008.  The San Clemente loggerhead shrike recovery program: Intensive adaptive management and the retrieval of an endangered bird from the brink. 15th Annual Conference of The Wildlife Society, Miami, Florida, USA.

Bradley, James E., Andrew S. Bridges.  2008.  Differential dispersal of wild and captive-reared juvenile San Clemente loggerhead shrikes.  7th California Islands Symposium, Oxnard, California, USA.                                             

Craig, Catherine and Andrew S. Bridges.  2008.  Update on the status of the endangered San Clemente loggerhead shrike.  7th California Islands Symposium, Oxnard, California, USA.

Easley, Anna-Maria and Andrew S. Bridges.  2008.  Does age class affect reproductive success of wild-born offspring of release-origin San Clemente loggerhead shrikes?  7th California Islands Symposium, Oxnard, California, USA.

Fidorra, Jason, and Andrew S. Bridges.  2008.  A comparison of release techniques for captive-reared San Clemente loggerhead shrikes.  7th California Islands Symposium, Oxnard, California, USA.             

Fidorra, Jason, Andrew S. Bridges, Susan Farabaugh, and David K. Garcelon.  2008.  A comparison of release techniques for captive-reared San Clemente loggerhead shrikes.  1st International Reintroduction Conference, Chicago, Illinois, USA.      

Johnston, Naira N., Andrew S. Bridges and James E. Bradley.  2008.  Food supplementation encourages behaviors conducive to high reproductive output in the San Clemente loggerhead shrike.  7th California Islands Symposium, Oxnard, California, USA.     

Simmons, David A., Andrew S. Bridges, and David K. Garcelon.  2008.  Predator control and variability in the diet of feral cats on San Clemente Island, CA.  7th California Islands Symposium, Oxnard, California, USA.

Bridges, Andrew S., Josephine A. Fox, Colleen Olfenbuttel, and Michael R. Vaughan.  2004.  Denning ecology of American black bears in western Virginia: implications for research and management.  11th Annual Conference of The Wildlife Society, Calgary, Canada.

Bridges, Andrew S., Josephine A. Fox, Colleen Olfenbuttel, and Michael R. Vaughan.  2004.  Denning ecology of American black bears in western Virginia: implications for research and management.  5th Annual Carnivore Conservation Conference, Santa Fe, New Mexico, USA.

Bridges, Andrew S., Josephine A. Fox, Colleen Olfenbuttel, and Michael R. Vaughan.  2004.  Reproductive ecology of American black bears in northwestern Virginia. 15th International Conference on Bear Research and Management, San Diego, California, USA.

Bridges, Andrew S., Josephine A. Fox, Colleen Olfenbuttel, and Michael R. Vaughan.  2004.  Denning behavior of American black bears: observations and applications using remote photography.  15th International Conference on Bear Research and Management, San Diego,California, USA.

Bridges, Andrew S., Colleen Olfenbuttel, and Michael R. Vaughan.  2003.  Denning ecology of American black bears in Virginia, USA.  3rd International Wildlife Management Congress, Christ Church, New Zealand.

Bridges, Andrew S., Colleen Olfenbuttel, and Michael R. Vaughan.  2003.  Reproductive ecology of American black bears in Virginia, USA.  3rd International Wildlife Management Congress, Christ Church, New Zealand.

Olfenbuttel, Colleen, Andrew S. Bridges, and Michael R. Vaughan.  2003.  Reproductive biology of captive black bears.  3rd International Wildlife Management Congress, Christ Church, New Zealand.

Bridges, Andrew S. and Michael R. Vaughan.  2003.  Activity patterns of black bears in Virginia: quantification via remote photography.  10th Annual Conference of The Wildlife Society, Burlington, Vermont, USA. 

Bridges, Andrew S., Daniel J. Lee, and Michael R. Vaughan.  2002.  Field identification of yearling black bears.  14th International Conference on Bear Research and Management, Steinkjer, Norway.

Bridges, Andrew S.  2001.  Surveying and monitoring techniques for bears.  Virginia Chapter of the Wildlife Society, Mountain Lake, Virginia, USA.
-Invited

Olfenbuttel, Colleen, Andrew S. Bridges, and Michael R. Vaughan.  2001.  Introduction of captive-raised orphaned black bear cubs into the wild.  13th International Conference on Bear Research and Management, Jackson Hole, Wyoming, USA.

Bridges, Andrew S., Markus J. Peterson, Nova J. Silvy, Fred E. Smeins, and X. Ben Wu. 1999.  Correlations between drought indices and population trends in northern bobwhite and scaled quail in the Rolling Plains and South Texas Plains ecological regions of Texas.  6th Annual Conference of The Wildlife Society, Austin, Texas, USA.

Bridges, Andrew S., Markus J. Peterson, Nova J. Silvy, Fred E. Smeins, and X. Ben Wu.  1999.  Correlations between drought indices and population trends in northern bobwhite and scaled quail in the South Texas Plains.  Welder Wildlife Foundation Research Symposium, Sinton, Texas, USA.

Bridges, Andrew S., Markus J. Peterson, Nova J. Silvy, Fred E. Smeins, and X. Ben Wu.  1999.  Correlations between drought indices and population trends in northern bobwhite and scaled quail in the South Texas Plains.  34th Annual Conference of the Texas Chapter of the Wildlife Society, Amarillo, Texas, USA.
 
Bridges, Andrew S. and Michael E. Dorcas.  1998.  Variation in anuran calling behavior: implications for calling surveys and population assessment.  59th Annual Conference of the Association of Southeastern Biologists, Monroe, Louisiana, USA. 
-Eugene P. Odum award for most outstanding student paper