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Full-Text Articles in Life Sciences
Evaluation Of Harvest Indices For Monitoring Cougar Survival And Abundance, Michael L. Wolfe, Eric M. Gese, Patricia A. Terletzky, David C. Stoner, Lise M. Aubry
Evaluation Of Harvest Indices For Monitoring Cougar Survival And Abundance, Michael L. Wolfe, Eric M. Gese, Patricia A. Terletzky, David C. Stoner, Lise M. Aubry
Wildland Resources Faculty Publications
Harvest indices are used by state wildlife management agencies to monitor population trends and set harvest quotas for furbearer species. Although harvest indices may be readily collected from hunters, the reliability of harvest indices for monitoring demography and abundance of the harvested species is rarely examined, particularly amongst large carnivores. The overall objective of this study was to assess whether cougar (Puma concolor) harvest statistics collected by wildlife managers were correlated with changes in cougar demography, mainly survival rates and abundance. We estimated key demographic parameters for 2 cougar populations in Utah over 17 years during which we …
A History Of Moose Management In Utah, Michael L. Wolfe, Kent R. Hersey, David C. Stoner
A History Of Moose Management In Utah, Michael L. Wolfe, Kent R. Hersey, David C. Stoner
Wildland Resources Faculty Publications
During the first half of the 20th century a moose (Alces alces) population gradually established itself on the North Slope of Utah’s Uinta Mountains from founders in the Greater Yellowstone Ecosystem. Formal management of the species commenced with an aerial survey conducted in 1957, and the first legal hunt in 1958. From this small initial population moose have expanded into other areas of northern Utah and, augmented by transplants, the statewide population has increased to an estimated 3,200 animals as of 2009. In the northern portion of the state moose appear to prosper in riparian willow (Salix sp.) habitats as …
What Makes An Animal Choose A Forage, Elizabeth A. Burritt, Frederick D. Provenza
What Makes An Animal Choose A Forage, Elizabeth A. Burritt, Frederick D. Provenza
Wildland Resources Faculty Publications
Consider the following scenarios: To cut the costs of ranching a researcher explores feeding cattle ammoniated straw in winter. Some of the cows maintain themselves on the diet while others lose weight, produce less milk and fail to conceive. A producer in Missouri plants a pasture rich in legumes and high in crude protein, yet his cattle prefer moldy hay and endophyte infected tall fescue to the legumes. Why do animals behave this way? Animals are thought to prefer foods that are palatable but what is palatability? We define palatability as the interrelationship between a food's flavor and postingestive feedback …