- Master of Science, Wildlife Ecology and Conservation. University of Florida, Gainesville, Florida. 2002.
- Bachelor of Science, Wildlife Management. Humboldt State University, Arcata, California. 1989
- Aug. 2001 - Present, Wildlife Biologist, U.S. Geological Survey - National Wildlife Health Center, Madison, Wisconsin.
- Feb. 1998 - Aug. 2001, Graduate Student/Biological Technician, Florida Game and Fish Commission and University of Florida, Gainesville, Florida.
- Oct. 1995 - Jan. 1998, Biological Technician (Marine), Biscayne National Park, Homestead, Florida.
- Nov. 1991 - Oct. 1995, Biological Technician (Wildlife), Pacific Islands Science Center (Wildlife Disease Lab), Volcano, Hawaii.
- June 1991 - Nov. 1991, Wildlife Biologist, Klamath Basin National Wildlife Refuge, Tulelake, California.
Science and Products
USGS-NWHC Quarterly Wildlife Mortality Report - October 2018
No abstract available.Richards, Bryan J.; Dusek, Robert; Ballmann, Anne; Nguyen, Natalie T.
Mortality of little brown bats (Myotis lucifugus carissima) naturally exposed to microcystin-LR
We describe a die-off of little brown bats (Myotis lucifugus carissima) associated with acute intoxication with microcystin-LR in 2016 at Scofield Reservoir in Utah. High levels of this cyanotoxin in water from the reservoir and gastrointestinal content of bats supported this diagnosis.Isidoro Ayza, Marcos; Jones, Lee C.; Dusek, Robert; Lorch, Jeffrey M.; Landsberg, Jan H.; Wilson, Patrick; Graham, Stephanie
Chlamydia psittaci in feral Rosy-faced Lovebirds (Agapornis roseicollis) and other backyard birds in Maricopa County, Arizona
In 2013, a mortality event of nonnative, feral Rosy-faced Lovebirds (Agapornis roseicollis) in residential backyards in Maricopa County, Arizona, US was attributed to infection with Chlamydia psittaci. In June 2014, additional mortality occurred in the same region. Accordingly, in August 2014 we sampled live lovebirds and sympatric bird...Dusek, Robert; Justice-Allen, Anne; Bodenstein, Barbara; Knowles, Susan N.; Grear, Daniel A.; Adams, Laura; Levy, Craig; Yaglom, Haley D.; Shearn-Bochsler, Valerie I.; Ciembor, Paula; Gregory, Christopher R.; Pesti, Denise; Ritchie, Branson W.
Grass is not always greener: Rodenticide exposure of a threatened species near marijuana growing operations
ObjectiveMarijuana (Cannabis spp.) growing operations (MGO) in California have increased substantially since the mid-1990s. One environmental side-effect of MGOs is the extensive use of anticoagulant rodenticides (AR) to prevent damage to marijuana plants caused by wild rodents. In association with a long-term demographic study, we report on...Franklin, Alan B.; Carlson, Peter C.; Rex, Angela; Rockweit, Jeremy T.; Garza, David; Culhane, Emily; Volker, Steven F; Dusek, Robert J.; Shearn-Bochsler, Valerie I.; Gabriel, Mourad W.; Horak, Katherine E.
Quarterly wildlife mortality report - January 2018
No abstract available.Richards, Bryan J.; Grear, Daniel A.; Ballmann, Anne; Dusek, Robert; Kaler, Robert; Kuletz, Kathy
Inferring epidemiologic dynamics from viral evolution: 2014–2015 Eurasian/North American highly pathogenic avian influenza viruses exceed transmission threshold, R0 = 1, in wild birds and poultry in North America
Highly pathogenic avian influenza virus (HPAIV) is a multihost pathogen with lineages that pose health risks for domestic birds, wild birds, and humans. One mechanism of intercontinental HPAIV spread is through wild bird reservoirs, and wild birds were the likely sources of a Eurasian (EA) lineage HPAIV into North America in 2014. The introduction...Grear, Daniel R.; Hall, Jeffrey S.; Dusek, Robert; Ip, Hon S.
Potential for water borne and invertebrate transmission of West Nile virus in the Great Salt Lake, Utah
In November and December of 2013, a large mortality event involving 15,000 - 20,000 eared grebes (Podiceps nigricollis) occurred at the Great Salt Lake (GSL), UT. The onset of the outbreak in grebes was followed by a mortality event in > 86 bald eagles (Haliaeetus leucocephalus). During the die-off, West Nile virus (WNV) was detected by RT-PCR...Lund, Melissa; Shearn-Bochsler, Valerie I.; Dusek, Robert; Shivers, Jan; Hofmeister, Erik K.
USGS-NWHC Quarterly Wildlife Mortality Report- January 2017
No abstract available.Richards, Bryan J.; Grear, Daniel A.; Ballmann, Anne; Dusek, Robert; Bodenstein, Barbara
No evidence of infection or exposure to Highly Pathogenic Avian Influenzas in peridomestic wildlife on an affected poultry facility
We evaluated the potential transmission of avian influenza viruses (AIV) in wildlife species in three settings in association with an outbreak at a poultry facility: 1) small birds and small mammals on a poultry facility that was affected with highly pathogenic AIV (HPAIV) in April 2015; 2) small birds and small mammals on a nearby poultry...Grear, Daniel A.; Dusek, Robert J.; Walsh, Daniel P.; Hall, Jeffrey S.
USGS National Wildlife Health Center quarterly wildlife mortality report: January 2016 to March 2016
No abstract availableBallmann, Anne E.; Bodenstein, Barbara L.; Dusek, Robert J.; Grear, Daniel R.; Chipault, Jennifer
U.S. Geological Survey science strategy for highly pathogenic avian influenza in wildlife and the environment (2016–2020)
IntroductionThrough the Science Strategy for Highly Pathogenic Avian Influenza (HPAI) in Wildlife and the Environment, the USGS will assess avian influenza (AI) dynamics in an ecological context to inform decisions made by resource managers and policymakers from the local to national level. Through collection of unbiased scientific information on...Harris, M. Camille; Pearce, John M.; Prosser, Diann J.; White, C. LeAnn; Miles, A. Keith; Sleeman, Jonathan M.; Brand, Christopher J.; Cronin, James P.; De La Cruz, Susan; Densmore, Christine L.; Doyle, Thomas W.; Dusek, Robert J.; Fleskes, Joseph P.; Flint, Paul L.; Guala, Gerald F.; Hall, Jeffrey S.; Hubbard, Laura E.; Hunt, Randall J.; Ip, Hon S.; Katz, Rachel A.; Laurent, Kevin W.; Miller, Mark P.; Munn, Mark D.; Ramey, Andrew M.; Richards, Kevin D.; Russell, Robin E.; Stokdyk, Joel P.; Takekawa, John Y.; Walsh, Daniel P.
Widespread detection of highly pathogenic H5 influenza viruses in wild birds from the Pacific Flyway of the United States
A novel highly pathogenic avian influenza virus belonging to the H5 clade 18.104.22.168 variant viruses was detected in North America in late 2014. Motivated by the identification of these viruses in domestic poultry in Canada, an intensive study was initiated to conduct highly pathogenic avian influenza surveillance in wild birds in the Pacific Flyway...Bevins, S.N.; Dusek, Robert J.; White, C. LeAnn; Gidlewski, Thomas; Bodenstein, B.; Mansfield, Kristin G.; DeBruyn, Paul; Kraege, Donald K.; Rowan, E.L.; Gillin, Colin; Thomas, B.; Chandler, S.; Baroch, J.; Schmit, B.; Grady, M. J.; Miller, R. S.; Drew, M.L.; Stopak, S.; Zscheile, B.; Bennett, J.; Sengl, J.; Brady, Caroline; Ip, Hon S.; Spackman, Erica; Killian, M. L.; Kim Torchetti, Mia ; Sleeman, Jonathan M.; DeLiberto, T.J.