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Brian Hatfield - Non WERC Employee
Wildlife Biologist
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Brian Hatfield - Non WERC Employee
Santa Cruz Field Station
100 Shaffer Road /
Santa Cruz, CA 95060
Email:
Brian_E_Hatfield@partner.nps.gov
Bio
All Products
Journal_Article
2010
Hatfield, B.B., Ames, J.A., Estes, J.A., Tinker, M.T., Johnson, A.B., Staedler, M.M., and Harris, M.D. In Press. Sea otter mortality in traps. Endangered Species Research.
[Journal_Article]
2006
Tinker, M.T., D.F. Doak, J.A. Estes, B.B. Hatfield, M.M. Staedler, and J.L. Bodkin. 2006. Incorporating diverse data and realistic complexity into demographic estimation procedures: a case study using the California sea otter, Enhydra lutris nereis. Ecological Applications 16:2293-2312.
[Journal_Article]
2003
Estes, J.A., Brian B. Hatfield, K. Ralls, and J. Ames. 2003. Causes of mortality in California sea otters during periods of population growth and decline. Marine Mammal Science. 19(1): 198-216.
[Journal_Article]
2000
Rathbun, G.B., B.B. Hatfield and T. G. Murphey. 2000. Status of translocated sea otters at San Nicolas Island, California. Southwestern Naturalist 45(3):322-328.
[Journal_Article]
1999
Hatfield, B.B. and G.B. Rathbun. 1999. Interactions between northern elephant seals and vehicles near Point Piedras Blancas, California. Marine Mammal Science 15(2):598-600.
[Journal_Article]
1998
Hatfield, B. B. 1998. Fall 1997 sea otter survey. The Otter Raft. 59:5
[Journal_Article]
1996
Hatfield, B.B. and G.B. Rathbun. 1996. Evaluation of a flipper-mounted transmitter on sea otters. Wildlife Society Bulletin 24(3):551-554.
[Journal_Article]
1995
Ralls, K., B. B. Hatfield, and D. B. Siniff. 1995. Foraging patterns of California sea otters as indicated by telemetry. Canadian Journal of Zoology 73:523-531.
[Journal_Article]
1994
Hatfield, B. B., R. J. Jameson, T. G. Murphey and D.D. Woodard. 1994 . Atypical interactions between male southern sea otters and pinnipeds. Marine Mammal Science 10(1): 111-114.
[Journal_Article]
1992
Hatfield, B.B. 1992. Notes on feeding sea otters from the Washington coast. Otter Raft 47:10.
[Journal_Article]
Abstract
2000
Hatfield, B., and R.J. Jameson. 2000. Abstract. Status of the California (USA) sea otter population as indicated by recent surveys and mortality patterns. In Gorbics C.S., G.R. VanBlaricom, B.E. Ballachey, N.J. Thomas, and M. Staedler (editors). Sea otter conservation: report from the sixth joint U.S. Russia sea otter workshop. Forks, Washington, 9-15 November 1997. Page 41.
[Abstract]
1996
Jameson, R.J., and B.B. Hatfield. 1996. Growth of an incipient northern elephant seal population near Pt. Piedras Blancas, California. Abstract, Society for Northwestern Vertebrate Biology, 76th annual meeting, 20-23 March, Corvallis, Oregon (Abstract).
[Abstract]
1989
Jameson, R. J. and B. B. Hatfield. 1989. Homing behavior of sea otters translocated from the central coast of California to San Nicolas Island, 14 August 1987 - 30 June 1989. Abstract. Eighth Biennial Conference on the Biology of Marine Mammals, Pacific Grove, California, p. 31.
[Abstract]
Proceedings
1994
Esque, T.C., T. Hughes, L.A. DeFalco, B.E. Hatfield, and R.B. Duncan. 1994. Effects of wildfire on desert tortoises and their habitats. In, pp. 153-154, A. Fletcher (ed.), Proceedings: The 19th Annual Desert Tortoise Council Symposium. Tucson, Arizona.
[Proceedings]
Newsletter
1991
Hatfield, B. and G.B. Rathbun. 1991. Flipper-tag radio transmitters for sea otters - An update. US Fish and Wildlife Service, Research Information Bulletin Number 91-29. 2 pp.
[Newsletter]
Database_Spatial
1999
Jameson, R.J. and B.B. Hatfield. 1999. Distribution and abundance of sea otters in California, 1982-1999. This is the database for the semiannual surveys of the California sea otter population. Surveys are ongoing. Reports on each survey are produced by Brian Hatfield.
[Database_Spatial]
Projects
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