With the current climate changes occurring globally, it is important to learn about how species distributions will react in the future. Questions have arisen as to whether species, including conifers, exist in a single or multiple climate envelopes which are described by their current distributions.

Colorado Mathematical Olympiad: The first 10 years and further explorations, by Alexander Soifer. Pp 188. $19.95. 1994. ISBN 0- 940263-03-3 (Center for Excellence in Mathematical Education, 855 Red Mesa Drive, Colorado Springs CO80906, USA) - Volume 79 Issue 484

Nuisance blooms of the stalked diatom Didymosphenia geminata have become an increasing concern worldwide, yet little is known about their effect on stream food webs. We investigated the effects of D. geminata blooms on stream invertebrates of the East River in the western Rocky Mountains. Areas with

Global warming, and exacerbated warming temperatures with humane activity, could impose novel conditions on the lives of many organisms. Of those, the behaviors and diets of solitary bees face adaptive stress as their optimal foraging conditions and preferred floral resources fluctuate. Trap nests m

Antipredator behavior is influenced by many factors including group size. Group size effects are seen when animals in larger social groups allocate less time to antipredator vigilance while foraging, but group size alone does not capture the diversity and complexity of sociality and behavior. An ind

Coexistence among species can occur in a variety of ways through niche partitioning. Two major niche components for many organisms are temperature and soil moisture and variation in these may occur with habitat heterogeneity. Near Gothic, Colorado at the Rocky Mountain Biological Laboratory, there a

Generalist pollinated plants receive pollination services from a wide range of animals, but pollinator effectiveness varies. More effective pollinators in generalist systems optimize pollen transfer by promoting outcrossing between more distant plants. This leads to increased pollinator mediated sel

Floral traits and nectar production of Ipomopsis aggregata were measured in response to water and phosphorus treatments applied to two morphotypes. Typical morphotypes underwent water and phosphorus treatments. Because stunted floral traits may be a response to drought stress, only water treatments

There are numerous species of organisms that live in woody vegetation. Their species diversity will be equal to the total number of species and their relative abundance. This study compared the species diversity of arthropods between perennial shrubs and evergreen trees. I hypothesized that a larger

Mammal mounds have been found to have diverse effects on vegetation. The area around yellow-bellied marmot (Marmota flaviventris) burrows was examined for different morphospecies and plant cover to find if diversity decreased near a burrow. Morphospecies were identified to family to look for trends

An earthflow that occurred in Gunnison County, Colorado created a natural laboratory to study plant succession. Plant succession and ants can effect the soil composition of grounds left bare and depleted of organic matter by the landslide. This study was conducted to examine if the described success