1,559 results — type: Student Paper ·
Investigating patterns of juvenile dispersal in golden mantled ground squirrels, <i>Callospermophilus lateralis</i>
Dispersal is the permanent relocation of an individual away from its natal burrow. This phenomenon is male biased in many mammal species and potential causes include inbreeding avoidance or resource competition. In this study, the dispersal behavior and exploratory excursion distances were recorded
Are vigilance and flight initiation distance correlated in yellow-bellied marmots?
Behavioral syndromes are widespread and can have important ecological consequences, since correlations between distinct behaviors shape how animals can respond to changing pressures and can limit behavioral plasticity. Various antipredator behaviors have been identified within behavioral syndromes i
There's no place like home: Investigating the ideal nesting requirements of Megachilidae bees in the Rocky Mountains of Colorado
Solitary mason bees in the family Megachilidae are known to be important pollinators worldwide. They are important pollinators of natural ecosystems and also are widely used for the commercial pollination of crop plants such as almonds, cherries, peaches, plums, and apples. Given that they are such
Willow branch selection by the red-naped sapsucker (<i>Sphyrapicus nuchalis</i>): The effects of branch characteristics on foraging behavior in Gothic, CO
Foraging Red-naped sapsuckers (Sphyrapicus nuchalis) displayed a clear preference for interior willow branches branches (80% of all total wells) over exterior branches, and for east-facing branches (62% of all total wells) over west-facing ones. Interior branches were most likely favored because of
Fitness costs of the aphid endosymbiont, <i>Hamiltonella defensa</i>
Black sage aphids, Obtusicauda frigidae, are infected by the bacterial endosymbiont Hamiltonella defensa. The bacteria confers a resistance to parasitism by the solitary endoparastic wasp Aphidius ervi. The bacteria also confers a number of other advantages to the aphids. Despite the number of advan
Effects of multi-species interactions in gynodioecious populations of <i>Polemonium foliosissimum</i>
Gynodioecy is a dimorphic breeding system in which male sterile individuals coexist with hermaphroditic individuals in the same populations. In order for female plants to be maintained within these populations, considering that they do not achieve fitness through male function, they must have a fitn
Local Adaptations and Fitness of Transplants in the Lewis Flax – Flax Rust Coevolutionary System
Disease progresses differently in varying environments. In coevolutionary interactions, species that interact frequently may adapt to their environment and to each other in a process called local adaptation. However, there may be trade-offs between adapting to the environment and to a coevolving par
The effect of ant tending on the fitness of aphids during and after colony establishment
Mutualisms are mutually exploitative relationships in which the benefits to both partners outweigh the costs. Mutualisms are expected to exist in a fragile balance, and these interactions may vary, both across their geographic range and temporally. Valeriana edulis, a dioecious perennial, is host to
Hybridization between the invasives <i>Tragopogon pratensis</i> and <i>T. dubius</i> in the Gunnison Valley
Biotic factors influencing feeding preferences of <i>Scaptomyza nigrita</i> (Drosphilidae) on its host plant, <i>Cardamine cordifolia</i> (Brassicaceae)
Dissolved iron stimulates uptake of organic phosphorus by <i>Didymosphenia geminata</i>
Recent blooms of Didymosphenia geminata in streams around the world where they had never been recorded before has generated new interest in the biology and ecology of this diatom. The species is often found in oligotrophic mountain streams where phosphorus limitation may determine productivity. Exce
Causes of predation intensity in an ant/aphid mutualist system
Pollinator selection by floral traits and color in a hybrid zone of <i>Ipomopsis aggregata</i> and <i>I. tenuituba</i> (Polemoniaceae)
Albinos plants are usually discriminated by their pollinators. Exist the possibility that other pollinator drive a reproductive isolation on this plants. To observe if an albino of a plant commonly pollinated by hummingbirds can be selected by other pollinator we used the F1s of albinos of Ipomopsis
The role of soil in regulating plant performance in Valeriana edulis
Climate change is currently shifting the ranges of plant species, and while climate-based variables trigger migration, sessile plants may reach an expansion limit due to variations in the characteristics of local soils. To better understand the effects of soil on plant performance, we paired 13 year
The effect of changing floral density on pollinator networks in a subalpine meadow environment
Plant-pollinator networks shape the populations of flowering plants across the world. Ecosystems face increasing challenges that decrease floral density and threaten to restructure plant-pollinator networks. The responses of these networks will play a critical role in the fates of plant species, bec
The effect of elevation on the phenology and pollination ecology of <i></i>Frasera speciosa<i></i> (Gentianaceae)
Nectar and pollen rewards of invasive plants and their native congeners
Many invasive plants are equipped with a suite of mechanisms that can allow them to out-compete native plants. Recently, there has been growing recognition that invasive plants may affect native plants by luring away shared pollinators. The goal of this research was to explore the properties that ma