Former graduate Students in the Creel Lab at
Schuette (PhD): Paul studied interactions between top carnivores
(particularly lions), their competitors, their prey, humans and livestock,
working on the Olkiramation and Shompole Maasai group ranches
in Kenya. A lot is known about the ecology of large
African carnivores, but very little of this work has been
conducted outside of centrally-protected National Parks.
Paul's study area included regions with permanent human
settlements and livestock, seasonal human use, a conservation
area with limited human use, and a buffer zone. He found
that lions coexisted with people and attained high densities
by adjusting their occupancy of the landscape in response to
seasonal movements of people and livestock. Most
ungulates and large carnivores attained higher densities in
the conservation area than with other land uses, but all
species were found in all of the land uses. Paul went on
to do a postdoc with the Zambian Carnivore Programme,
establishing a study of large-carnivore ungulate dynamics and
conservation in Kafue National Park.
Tyler Coleman (PhD):
Tyler, co-advised by Dr. Chuck Schwartz,
evaluated the effectiveness of Yellowstone National Park's
grizzly bear management policies, focusing on the closure or
restriction of use in bear management areas. His field
work was with Kerry Gunther of Yellowstone National Park.
Tyler's analysis was based on an innovative approach that put
GPS collars on grizzly bears and distributed logging GPS units
to humans using the same area at the same time. Among
other things, he learned that people stroll by grizzly bears
without knowing quite often, and the bears generally move away
following such encounters, sometimes moving large distances.
Tyler went on to a job with the National Park Service as a bear
biologist in Yellowstone National Park.
Tyler Creech (MS): Tyler co-advised by Dr. Paul Cross of USGS, used proximity
collars that recorded contacts between individual elk to examine the
ecology and epidemiology of brucellosis in elk on Wyoming feedgrounds and
the Yellowstone Ecosystem. Specifically, he examined the effect
of feedgrounds and different methods of distributing food on
feedgrounds on elk contact rates. His work showed that
contact rates among elk that aggregate at feedgrounds are very
high, and much higher than is observed in herds on native winter
ranges. This result parallels a result from Vicki
Forristal, a former student on the project, who found that
glucocorticoid stress hormone concentrations are substantially
higher in feedground elk than on winter ranges. Tyler went
on to a PhD study with Clint Epps.
Leslie Frattaroli (MS):
Leslie, co-advised by Dr. Chuck Schwartz, used downloadable GPS
collars to visit foraging sites of black bears soon after their use,
to assess recreation impacts on habitat use and to assess the
affects of grizzly bear range expansion on black bears. Her
field work was with Steve Cain in Grand Teton National Park.
Dave Christianson (PhD): Dave
examined changes in elk foraging behavior in response to the
presence of wolves, and the impacts of these changes on elk diets,
nutrition, and demography. He went on to an EU Fellowship with Anne
Loison's research group at the Université de Savoie, to
examine interactions between predation and resource limitation on
chamois nutrition and population dynamics, and then to become a
professor at the University of Arizona.
Tiffany Holland (MS): Tiffany, co-advised by Dr. Marcel
Huisjer of WTI, examed factors that contribute to vehicle
collisions with deer on US 93, testing for reductions
after mitigation measures.
Cecily Costello (PhD): Cecily studied
black bear social organization and space use as they relate to
population genetics and patterns of relatedness, using data from two
populations in NM. Wildlife Conservation Society/Hornocker Wildlife
Institute grants. Cecily went on to research with the
Interagency Grizzly Bear Study Team on the genetic structure of N.
Rockies populations of grizzly bears and issues to do with ESA
Stewart Liley (MS): Stewart
used model selection methods to test the relative strength of
predator, prey and environmental characteristics in predicting
antipredator responses of elk to the presence of wolves.
Surprisingly little prior work has attempted to determine the
relative importance of these three types of variables in determining
the strength of antipredator responses. Dangerous
places? The size or proximity of predator groups?
Characteristics of the prey group itself? Answers are in his
paper in Behavioral Ecology. Stewart went on to a job as the
head elk biologist for the state of New Mexico.
John Winnie (PhD): John studied
the effects of predation risk from wolves on elk behavior, grouping
patterns and spatial distributions, producing wide ranging data that
revealed strong responses by elk in almost every aspect of their
behavior that we considered. He went on to a postdoc with
Wayne Getz and Paul Cross, studying habitat selection by
African buffalo, and then to work for WCS on the conservation of
argali (Marco Polo sheep) in the Wakhan corridor of Afghanistan.
Aaron Wagner (PhD): Aaron studied striped hyenas on the
Laikipia Plateau of Kenya, including aspects of behavior, ecology,
endocrinology and genetics. He went on to a postdoc to
continue his work on striped hyenas in Kenya, with Kay Holekamp at
Michigan State University (thereby keeping his career wholly within
institutions called MSU).
Julia Nelson (MS), who studied the impacts of coyotes on
the use of space and stress physiology of endangered San Joaquin kit
foxes, working with Dr. Brian Cypher. She went on to do some
world traveling, study languages and work in Belize for the Peace
Goran Spong (PhD), who studied
population genetics and social evolution in African lions (in the
Selous Game Reserve). Goran went on to a postdoc at
Cambridge university with Dr. Tim Clutton Brock, studying
meerkats, and then to a faculty position at the University of Umea where he now has a
population genetics lab and is director of the graduate program.
Jennifer Sands (MS), who studied
interactions between aggression, social status and glucocorticoid
stress hormones in wolves (in Yellowstone National Park). Jennifer
went on to become a secondary science teacher in Boulder.
Amanda Hardy (MS), who studied the impacts of winter recreation on
elk and bison (in YNP). Amanda went to a job as a wildlife
ecologist for the Western Transportation Institute, and then a PhD