Variation in population sizes of indicator species on an annual scale is much more likely to be of significance for most studies of ecosystem recovery. This broader time scale encompasses the regularly occurring seasonal climatic cycles and the corresponding variation in population dynamics of most

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

Circadian rhythms of body temperature were evident during deep torpor in 11 of 12 individuals. The mean period was 23.94 hours. Circadian cycles of oxygen consumption were apparent in Jive of 14 marmots. Arousal tended to occur during the increase phase of the cycle. This report may be the Jirst to

Abstract The purpose of this chapter is to demonstrate a method to generate your own presence and absence data and distribute those samples using specific ecological characteristics found in remotely sensed imagery. You will see that even when field data is unavailable, you can still digitally sampl

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

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

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

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