Browse Items (159 total)
- Collection: Journal Articles
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Dual resistance to Flavobacterium psychrophilum and Myxobolus cerebralis in rainbow trout (Oncorhynchus mykiss, Walbaum)
Aquatic pathogens are a major concern for fish hatchery production, fisheries management, and conservation, and disease control needs to be addressed. Two important salmonid pathogens are Myxobolus cerebralis and Flavobacterium psychrophilum that…
Survival, fidelity, and dispersal of Double-crested Cormorants on two Lake Michigan islands
Colony fidelity and dispersal can have important consequences on the population dynamics of colonial-nesting birds. We studied survival and inter-colony movements of Double-crested Cormorants (Phalacrocorax auritus; cormorants) nesting at Spider and…
Using environmental features to model highway crossing behavior of Canada lynx in the Southern Rocky Mountains
Carnivores are particularly sensitive to reductions in population connectivity caused by human disturbance and habitat fragmentation. Permeability of transportation corridors to carnivore movements is central to species conservation given the large…
A multi‐property assessment of intensity of use provides a functional understanding of animal movement
Abstract
The intensity of use of a location is one of the most studied properties of animal movement, yet movement analyses generally focus on the overall use of a location without much consideration of how patterns in intensity of use emerge.…
Wolf prey selection in an elk-bison system: choice or circumstance?
What a predator eats when given choices, and the subsequent effects of this behavior on ecosystem stability, has long been a topic of interest for ecologists. Prey selection is influenced by the absolute and relative abundances of prey types, the…
Wolf kill rates: predictably variable?
The ability of predators to successfully capture and kill prey is affected by the abundance and diversity of the prey assemblage, and such variation is a fundamental driver of ecosystem dynamics because per capita consumption rate strongly influences…
Variation in ungulate body fat Individual versus temporal effects
The use of ultrasonograhic measurements of muscle and body fat represent a relatively new data stream that can be used to address questions regarding ungulate condition. We have learned that measurements of body fat and presumably overall body…
Estimation of moose parturition dates in Colorado: incorporating imperfect detections
Researchers and managers use productivity surveys to evaluate moose populations for harvest and population management purposes, yet such surveys are prone to bias. We incorporated detection probability estimates (p) into spring and summer ground…
Moose calf detection probabilities: quantification and evaluation of a ground-based survey technique
Survey data improve population management, yet those data often have associated bias. We quantified one source of bias in moose survey data (observer detection probability, p), by using repeated ground-observations of calves-at-heel of radio-collared…
Density dependence in mule deer: A review of evidence
Wildlife managers often need tangible evidence of density dependence in populations to support decision making. Field experimentation to identify density dependent effects is often cost and time prohibitive. Thus, assimilation of existing knowledge…