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Tooth Fracture Frequency In Gray Wolves Reflects Prey Availability., Blaire Van Valkenburgh, Rolf O. Peterson, Douglas W Smith, Daniel R Stahler, John A. Vucetich Sep 2019

Tooth Fracture Frequency In Gray Wolves Reflects Prey Availability., Blaire Van Valkenburgh, Rolf O. Peterson, Douglas W Smith, Daniel R Stahler, John A. Vucetich

Michigan Tech Publications

Exceptionally high rates of tooth fracture in large Pleistocene carnivorans imply intensified interspecific competition, given that tooth fracture rises with increased bone consumption, a behavior that likely occurs when prey are difficult to acquire. To assess the link between prey availability and dental attrition, we documented dental fracture rates over decades among three well-studied populations of extant gray wolves that differed in prey:predator ratio and levels of carcass utilization. When prey:predator ratios declined, kills were more fully consumed, and rates of tooth fracture more than doubled. This supports tooth fracture frequency as a relative measure of the difficulty of acquiring …


Ecological Studies Of Wolves On Isle Royale, 2018-2019, Sarah R. Hoy, Rolf O. Peterson, John A. Vucetich Mar 2019

Ecological Studies Of Wolves On Isle Royale, 2018-2019, Sarah R. Hoy, Rolf O. Peterson, John A. Vucetich

Ecological Studies of Wolves on Isle Royale

Annual Report 2018-2019


Volume 4, Chapter 8-7: Tropics: Lowland Rainforests, Janice M. Glime Jan 2019

Volume 4, Chapter 8-7: Tropics: Lowland Rainforests, Janice M. Glime

Bryophyte Ecology Subchapters

No abstract provided.


Volume 4, Chapter 8-9: Tropics: Submontane And Montane, Janice M. Glime Jan 2019

Volume 4, Chapter 8-9: Tropics: Submontane And Montane, Janice M. Glime

Bryophyte Ecology Subchapters

No abstract provided.


Volume 4, Chapter 8-8: Tropics: Elevation, Janice M. Glime Jan 2019

Volume 4, Chapter 8-8: Tropics: Elevation, Janice M. Glime

Bryophyte Ecology Subchapters

No abstract provided.


Volume 4, Chapter 8-11: Tropics: Hydric And Xeric Habitats, Janice M. Glime Jan 2019

Volume 4, Chapter 8-11: Tropics: Hydric And Xeric Habitats, Janice M. Glime

Bryophyte Ecology Subchapters

No abstract provided.


Volume 4, Chapter 8-12: Tropics: Rocks And Inselbergs, Janice M. Glime, Tatiany Oliveira Da Silva Jan 2019

Volume 4, Chapter 8-12: Tropics: Rocks And Inselbergs, Janice M. Glime, Tatiany Oliveira Da Silva

Bryophyte Ecology Subchapters

No abstract provided.


Spread Of Emerging Contaminants In Water Distribution Systems, Danielle Pilarski Jan 2019

Spread Of Emerging Contaminants In Water Distribution Systems, Danielle Pilarski

Dissertations, Master's Theses and Master's Reports

Emerging contaminants are a growing concern to humans and the environment. Studies have shown these contaminants are present in the environment through continuous release into surface waters from wastewater treatment effluent, manufacturing processes, and agricultural use. The effects of these contaminants have been observed in ecological studies, but they have not yet been well studied for long term exposure in humans. These emerging contaminants have also not been well studied to determine the rates at which they decay or how they move through distribution systems. This study aims to determine the importance of decay rate on concentration throughout a distribution …


Examining Aspen Expansion From Before And After Prescribed Burning In A Native Fescue Grassland Through Geospatial Techniques, Christopher Anderson Jan 2019

Examining Aspen Expansion From Before And After Prescribed Burning In A Native Fescue Grassland Through Geospatial Techniques, Christopher Anderson

Dissertations, Master's Theses and Master's Reports

Native fescue (Fescue spp.) grasslands of the Intermountain West have become increasingly scarce due to the advent of modern agriculture, the loss of Indigenous people’s land management practices, modern wildfire management and the extirpation of bison (Bison bison bison). Native grassland is a biodiversity hot-spot, is significant for carbon sequestration, and essential to many species of flora and fauna that occur in the ecosystem. Our study site, on the Rocky Mountain Front in Waterton Lakes National Park, Alberta Canada, consists of 30 discrete aspen stands (Populous tremuloides) which are encroaching on this declining shortgrass fescue …


Gendered Recreational Fisheries Management And North American Natural Resource Policy, Erin Burkett Jan 2019

Gendered Recreational Fisheries Management And North American Natural Resource Policy, Erin Burkett

Dissertations, Master's Theses and Master's Reports

This dissertation applies feminist theory to investigate women’s participation in wildlife-based recreation and how natural resource management organizations conduct stakeholder engagement in a North American context. Gendered social processes, including norms and expectations, as well as gendered cultures, can constrain women’s participation in recreation through social sanctions and disenfranchisement. Gender and leisure scholars have studied these dynamics in sport and leisure contexts, but how individuals negotiate these constraints is understudied in a wildlife-based recreation context. Social constructions of gender also contribute to imbalances of power within formal natural resource management organizations and influence how stakeholder engagement policies and programs are …