Pathogens, Nutritional Deficiency, and Climate Influences on a Declining Moose Population
Analysis of protein content in moose browse and fecal samples indicated that food quality was probably adequate to support moose over winter, but the higher fecal protein among animals that died in the subsequent 18 months could be indicative of protein catabolism associated with malnutrition, which may have contributed to moose mortality.
Development of predictive models of nutritional condition for Rocky Mountain elk
Several indices of condition useful for assessing nutritional condition of live or dead elk are identified, and a number of previously used techniques that correlate poorly with total body fat are indicated.
Estimating low-density snowshoe hare populations using fecal pellet counts
The number of hares occupying intensive study sites was correlated with pellet density on all plot types, but rectangular plots provided a slig...
Effects of Variable Sampling Frequencies on GPS Transmitter Efficiency and Estimated Wolf Home Range Size and Movement Distance
Abstract Global positioning system (GPS) technology has greatly improved the ability to investigate animal ecology at fine spatial and temporal scales but many GPS telemetry-based investigations may…
Infectious disease and the conservation of free‐ranging large carnivores
It is concluded that the threat of disease epidemics in large carnivores may be serious if otherwise lethal infections are endemic in reservoir hosts and transmitted horizontally among taxa.
Assessing differential prey selection patterns between two sympatric large carnivores
- Jason S. Husseman, D. Murray, G. Power, Curt M. Mack, C. Wenger, H. Quigley
- Environmental Science
- 1 June 2003
It is concluded that the disparity in prey selection and hunting habitat between predators probably was a function of predator-specific hunting behavior and capture success, where the longer prey chases and lower capture success of wolf packs mandated a stronger selection for disadvantaged prey.
FUNCTIONAL RESPONSES OF COYOTES AND LYNX TO THE SNOWSHOE HARE CYCLE
- M. O’Donoghue, S. Boutin, C. Krebs, G. Zuleta, D. Murray, Elizabeth J. Hofer
- Environmental Science
- 1 June 1998
The data show that the two similarly sized predators differed in their foraging behavior and relative abilities at capturing alternative prey, leading to different patterns in their functional responses to fluctuations in the density of their preferred prey.
Spatial organization and food habits of jaguars (Panthera onca) in a floodplain forest
Evaluation of Potential Factors Predisposing Livestock to Predation by Jaguars
The overall effect of predation on cattle was low and livestock likely constituted an alternative prey for large cats in the study area, however, selection of calves over other age cohorts and higher predation risk among cattle in proximity to forest cover is suggestive of selection of substandard individuals.
Interactions between cougars (Puma concolor) and gray wolves (Canis lupus) in Banff National Park, Alberta
ABSTRACT Large carnivore populations are recovering in many protected areas in North America, but the effect of increasing carnivore numbers on existing predator–prey and predator–predator…