354 results — type: Thesis ·
The ecology and evolution of symbioses between lycaenid butterflies and ants
Organization of a plant-pollinator community in a seasonal environment
Spatial and Behavioral Foraging Patterns and Diet Selectivity in the Social Yellow-Bellied Marmot
Population and habitit analyses of two endemic Colorado plants under the guidelines of the Endangered Species Act of 1973
Current habitat status of and anthropogenic impacts on the tiger salamander, <i>Ambystoma tigrinum nebulosum</i>
Plant responses to the joint effects of herbivores and pollinators
The ecology and evolution of pathogens in a changing world
Infectious diseases are an integral part of natural ecosystems but also pose a serious threat to human health and agriculture. Understanding the multitude of factors shaping the epidemiology and evolution of pathogens is crucial for predicting and mitigating their effects, especially in a rapidly ch
Bumble bee queen plasticity and social regulation of traits
Studies on the physiological states of wild-caught organisms are essential to uncovering the links between ecological and physiological processes. Bumble bee queens emerge from overwintering in the spring. At this time, queens develop their ovaries and search for a nest site in which to start a colo
Using geochemical indicators to distinguish high biogeochemical activity in the subsurface.
Microbial mediation of plant-pollinator interactions
Roles of pollinators, seed predators, and vertebrate herbivores in maintaining females in the gynodioecious <i>Polemonium foliosissimum</i>.
Most flowering plants are hermaphroditic, reproducing through seed set and seed siring. In gynodioecious species, some individuals are female and only reproduce through seed set. Because females do not gain fitness through pollen, they must have a seed fitness advantage over hermaphrodites to be mai
Revisiting Edward R. Warren: A Century of Beaver <i>Castor canadensis</I> Occupancy near Crested Butte, Colorado
The structure and function of subalpine ecosystems in the face of climate change
Subalpine ecosystems are experiencing rapid changes in snow pack, temperature, and precipitation regime as a result of anthropogenic climate forcing. These changes in climate can have a profound effect on subalpine ecosystem structure and functioning, which may ultimately feed back to climate change
The effect of ants on the population dynamics of <i>Hamiltonella defensa</i> a protective symbiont of aphids
Ecological interactions of the cadmium- and zinc-hyperaccumulating plant, Thlaspi caerulescens, and their implications for phytoremediation
Ecological effects of the biocontrol insects, <i>Larinus planus</i> and <i>Rhinocyllus conicus</i>, on native thistles
Patterns of natural avalanche activity associated with new snow water equivalence and upper atmospheric wind direction and speed in the mountains surrounding Gothic, Colorado
Snowfall, temperature and wind are three factors that quickly change avalanche conditions. Ridge-top winds have been used to assess avalanche conditions with mixed success due to high variability. Few analyses have tested the effect upper atmospheric winds have on avalanche conditions. This study at
From animals to ecosystem processes: Predicting functional outcomes of climate-driven changes in animal communities through species traits
Functional trait diversity within species assemblages ultimately determines whether or not ecosystem processes are sensitive to shifts in relative abundances or species composition. For example, trait variation suggests detritivores process detritus at different rates and make different relative con
The effects of anthropogenic change on pollination in plant-pollinator communities
The effects of anthropogenic change on pollination in plant-pollinator communities by Loy Xingwen Pollinators facilitate reproduction in ~80% of global plant species, making them integral to many agricultural and natural ecosystems. For over 200 years, western scientists have been fascinated by the