Dona Horan, Fisheries Biologist
- B.S. Wildlife Management, University of
- M.S. Fisheries Management, Utah State
research interests include life history studies of Idahoís native trout and the
effects of fire, climate change and introduced species on their distribution and
persistence. I have been involved in small-scale studies such as trying to
determine the timing of movement of individual adfluvial bull trout, as well as
large-scale studies looking at the effects of climate change on salmonids across
the western U.S. Iím fascinated by the range of tools that are available to
study these issues: from analyzing otoliths using microchemistry to modeling
habitat change using GIS. I especially enjoy the collaborative work we do with
other USFS offices, Fish and Game agencies, universities, and non-governmental
trout population structure, demography, and persistence
Isaak, Daniel J.; Horan, Dona L.; Wollrab, Sherry P. 2013. A simple protocol using underwater epoxy to install annual temperature monitoring sites in rivers and streams. Gen. Tech. Rep. RMRS-GTR-314. Fort Collins, CO: U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station. 21 p.
Isaak, D. J.; Wollrab, S.; Horan, D.; Chandler, G. 2011. Climate change effects on stream and river temperatures across the northwest U.S. from 1980-2009 and implications for salmonid fishes. Climatic Change. 113: 499-524.
Wenger, Seth J.; Isaak, Daniel J.; Luce, Charlie; Neville, Helen M.; Fausch, Kurt D.; Dunham, Jason B.; Dauwalter, Daniel C.; Young, Michael K.; Elsner, Marketa M.; Rieman, Bruce E.; Hamlet, Alan F.; Williams, Jack E. 2011. Flow regime, temperature, and biotic interactions drive differential declines of trout species under climate change. Proceedings of the National Academy of Science (PNAS). 108(34): 14175-14180.
Isaak, D.J., and D.L. Horan. 2011. An assessment of underwater epoxies for permanently installing temperature sensors in mountain streams. North American Journal of Fisheries Management 31:134-137.
Downs, C.C., D. Horan, E.
Morgan-Harris, and R. Jakubowski. 2006. Spawning demographics and juvenile dispersal of an adfluvial bull trout
population in Trestle Creek, Idaho. North American Journal of Fisheries
Horan, D. L. 1996. Effects
of habitat degradation on Colorado River cutthroat trout populations in Uinta
mountain streams. M.S. thesis, Utah State University, Logan.
Horan, D.L., J.L. Kershner,
C.P. Hawkins, and T.A. Crowl. 2000. Effects of habitat area and complexity on Colorado River cutthroat trout density
in Uinta Mountain streams. Transactions of the American Fisheries Society
Isaak, Daniel J.; Luce, Charles H.; Rieman, Bruce E.; Nagel, David E.; Peterson, Erin E.; Horan, Dona L.; Parkes, Sharon; Chandler, Gwynne L. 2010. Effects of climate change and wildfire on stream temperatures and salmonid thermal habitat in a mountain river network. Ecological Applications. 20(5): 1350-1371.
Kershner, J. L., C. M.
Bischoff, and D.
L. Horan. 1997. Population, habitat, and genetic characteristics of Colorado River cutthroat
trout in wilderness and non-wilderness stream sections in the Uinta Mountains of
Utah and Wyoming. North American Journal of Fisheries Management
D.E., Isaak, D., Adams, S., Horan, D., Nagel, D., Luce, C., and D. Myers. 2007.
Anticipated climate warming effects on bull trout habitats and populations
across the Interior Columbia River Basin. Transactions of the American
Fisheries Society. 136:1552-1565.
Wells, B.K., B.E. Rieman,
J.L. Clayton, D.L., Horan and C.M. Jones. 2003.
Relationships between water, otolith, and scale chemistries of westslope
cutthroat trout from the Coeur d'Alene River, Idaho: the potential application
of hard-part chemistry to describe movements in fresh water. Transactions of
the American Fisheries Society. 132:409-424.