Climatic shifts to warmer and often drier conditions are challenging terrestrial species
worldwide. These shifts are occurring more rapidly at higher elevations and latitudes, likely …

I analyze and summarize the empirical evidence supporting alternative hypotheses posed to
explain the evolution of rodent group-living. Eight hypotheses are considered: two rely on …

Calendar date of the beginning of the growing season at high altitude in the Colorado Rocky
Mountains is variable but has not changed significantly over the past 25 years. This result …

Seasonal reproduction is common among mammals at all latitudes, even in the deep tropics.
This paper (i) discusses the neuroendocrine pathways via which foraging conditions and …

Population dynamics is the consequence of the fitness strategies of in-dividuals. Fitness is
measured as reproductive success, ie the production of descendents. Individuals may …

Focusing on the physiological and behavioral factors that enable a species to live in a harsh
seasonal environment, this book places the social biology of marmots in an environmental …

Seasonal environmental conditions shape the behavior and life history of virtually all
organisms. Climate change is modifying these seasonal environmental conditions, which …

Continuous exposure to humans causes wildlife to either habituate or sensitize. Although
increased tolerance may play an important role in coexistence with humans, the …

The gut microbiome has a well-documented relationship with host fitness. Greater microbial
diversity and abundance of specific microbes have been associated with improved fitness …

For social animals, group social structure has important consequences for disease and
information spread. While prior studies showed individual connectedness within a group has …