Defensive strategy to nectar robbing in <i></i>Ipomopsis aggregata:<i></i> floral nectar as a tolerance trait
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
Effects of resource value on broad-tailed and rufous hummingbird behavior
Diurnal activity patterns in suborder Zygoptera
Relatedness threshold for the production of female sexuals in colonies of a polygynous ant, <i>Myrmica tahoensis</i>, as revealed by microsatellite DNA analysis
The genetic relationships of colony members in the ant Myrmica tahoensis were determined on the basis of highly polymorphic microsatellite DNA loci. These analyses show that colonies fall into one of two classes. In roughly half of the sampled colonies, workers and female offspring appear to be full
Shifting dominance within a montane vegetation community: results from a climate-warming experiment
In experimentally heated plots that each span a soil moisture gradient in a Rocky Mountain meadow, aboveground biomass of Artemisia tridentata (a sagebrush) increased in the drier habitat and that of Pentaphylloides floribunda (a shrub cinquefoil) increased in the wetter habitat relative to control
Dual function of the eliasome of <i>Corydalis aurea</i> (Fumariaceae): attraction of dispersal agents and repulsion of <i>Peromyscus maniculatus</i>, a seed predator
It has been suggested that one of the selective advantages of ant dispersal is the burial of seeds in ant nests where predators such as small rodents cannot find them. The elaiosomes of Corydalis aurea (Fumariaceae) are extremely attractive to ants, which assiduously gather the seeds and take them t
Nectar resource use by <i>Colias</i> butterflies: chemical and visual aspects
Trichopteran larvae case rebuilding behavior
Mutualism between ants and <i>Helianthella</i>
Characterization of thermal tolerance in sub-alpine bumblebee species
Temperature is one of the limiting factors of life, and it influences an organism’s growth, sexual reproduction, sexual determination, distribution, and metabolism. the interaction between temperature and organisms therefore an essential component of their ecology. Temperature impacts organisms in d
Using time-lapse imagery to determine snow heterogeneity
A vegetational comparison of the Gothic and Galena Mountain area
Factors affecting the dispersal of yearling yellow-bellied marmots
Plasticity in Ipomopsis flower color and nectar production over space and time in response to water availability
Climate change is altering water availability in subalpine ecosystems. Shifts in snowmelt timing and summer monsoonal precipitation, which alter soil moisture, have the capacity to elicit plastic responses in plants. Plasticity in floral traits such as nectar production and flower color can impact p
Scent marking behavior in <i>Ochotona princeps</i>
Mapping the range shifts of East River Valley caddisflies <i> (Trichoptera) </i>
Range shifts occur when all individuals of a species or population move from a previously- habitable area to a newly-habitable area in response to changing environmental conditions. Climate- induced range shifts are well-documented for certain regions, biomes, and taxa, but large knowledge gaps exis
Changes in insect population dynamics due to climate change
Abstract Climate change can modify the population dynamics of insects. In this instance, “climate” encompasses temperature and precipitation patterns, including dry season or snow cover duration and timing. Also included are changes in both climate means and variances. Insect declines in response to