Spontaneous combustion is a serious safety hazard in underground coal mines, particularly in mined-out areas (e.g., gob). It is estimated to be the cause of more than 20% of coal mine fires. Pressure balancing is a ventilation technique that can be used to reduce or eliminate the ingress of oxygen t

Studies of predation traditionally focus on how predators influence prey communities and prey population oscillations via mortality. Studies carried out for nearly 40 years in one place have enabled us to evaluate the gener- ality of this focus. Early observations in one high-altitude, rocky-bottom

When entering torpor, oxygen consumption decreased prior to the decline in body temperature for all 15 marmots used in this study. Most mean Q1o values were greater than 3.0, which supports metabolic inhibition rather than passive decline of metabolism because of the drop in body temperature. Change

which, following Aldenderfer (2006), we define as locations at elevations greater than 2,500 meters above sea level (e.g.,

The timing and processes of development of the high topography and high relief of the southern Rocky Mountains of Wyoming, Colorado and New Mexico has been controversial for over a hundred years. The Mesozoic and Paleozoic rocks in the region formed a 3-4 km thick sub-horizontal stratigraphy that re

which, following Aldenderfer (2006), we define as locations at elevations greater than 2,500 meters above sea level (e.g.,