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- Collection: Journal Articles
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Evaluating noninvasive methods for estimating cestode prevalence in a wild carnivore population
Helminth infections are cryptic and can be difficult to study in wildlife species. Helminth research in wildlife hosts has historically required invasive animal handling and necropsy, while results from noninvasive parasite research, like scat…
Parasitic infection increases risk-taking in a social, intermediate host carnivore
Toxoplasma gondii is a protozoan parasite capable of infecting any warm-blooded species and can increase risk-taking in intermediate hosts. Despite extensive laboratory research on the effects of T. gondii infection on behaviour, little is understood…
Plant and mule deer responses to pinyon-juniper removal by three mechanical methods.
Land managers in western North America often reverse succession by removing pinyon (Pinus spp.) and juniper (Juniperus spp.) trees to reduce fire risk and increase forage for wildlife and livestock. Because prescribed fire carries inherent risks,…
Predicting persistence of Rio Grande Cutthroat Trout populations in an uncertain future
The Rio Grande Cutthroat Trout Oncorhynchus clarkii virginalis (RGCT) occupies just 12% of its ancestral range. As the southernmost subspecies of Cutthroat Trout, we expect a warming climate to bring additional stressors to RGCT populations, such as…
Using genetic diversity to inform conservation efforts for native Cutthroat Trout of the Southern Rocky Mountains
Recent research on native Cutthroat Trout Oncorhynchus clarkii of the southern Rocky Mountains suggests a convoluted taxonomy confused by stocking in the early 1900s that obscured the native distributions of these fish. DNA recovered from the few…
Using digital photographs and pattern recognition to identify individual boreal toads (Anaxyrus boreas boreas)
Individual identification of animals can provide an array ofuseful capture-mark-recapture information, allowing researchers to estimate survival, movement, abundance, recruitment, and capture probability (Williams et al. 2002). This information can…
Interactions of Zooplankton, Mysis relicta, and Kokanees in Lake Granby, Colorado
Abstract. In studies of zooplankton and kokanees Oncorhynchus nerka in Lake Granby, Colorado, conducted from 1981 to 1983, we investigated the suspected role of introduced Mysis relicta in the decline of the kokanee sport fishery and egg take. Mysis…
Restoration of riparian vegetation on a mountain river degraded by historical mining and grazing
Riparian ecosystems in montane areas have been degraded by mining, streamflow alterations, and livestock grazing. Restoration of ecological and economic functions, especially in high-elevation watersheds that supply water to lower elevation urban and…
From gold mining to gold medal fishery: evaluating the fishery response to stream restoration on the Upper Arkansas River in Colorado
Over a century of metals pollution and channel disturbance associated with historical mining, land use, and water development contributed to degradation of aquatic and riparian habitat within the upper Arkansas River watershed near Leadville,…
Effects of willow nutrition and morphology on calving success of moose
Across much of North America, populations of moose (Alces alces) are declining because of disease, predation, climate change, and anthropogenic-driven habitat loss. Contrary to this trend, populations of moose in Colorado, USA, have continued to…