4,853 results

Student Paper

Is there intraspecific variation in synchrony in subalpine flowering species?

2019
Article

Within- and between-pond differences in diapausing egg production in Leptodiaptomus coloradensis (Copepoda: Calanoida)

2005Verh. International Verein. Limnology
Article

Effects of nectar robbing on nectar dynamics and bumblebee foraging strategies in Linaria vulgaris

2005Oikos
Student Paper

Do birds differentiate white noise and deterministic chaos? A playback experiment.

Evocative sounds are known to elicit heightened responses from receivers across animal taxa. Many species of caregivers specifically have been shown to have increased arousal from infant baboon screams providing a unique conspecific identification for baboon mothers to discriminate their young from

2015
Student Paper

The effects of primary and secondary nectar robbing of Ipomopsis aggregata on hummingbird visitation.

Nectar robbers feed on the nectar obtained through holes that have been chewed into the flower. This behavior often leads to a reduction in effective pollination because nectar robbers avoid floral reproductive structures (Inouye 1980). Primary nectar robbers puncture the flower, creating an opening

2015
Chapter

Wild mammals of north america: biology, management, and conservation

2003
Chapter

Adaptive strategies and diversity in marmots

2003
Student Paper

Using Apatite (U-Th)/He Thermochronology to Determine Exhumation Rates and the Topographical History of the Elk Mountains Ph.D

Low temperature AHe thermochronology shows that Gothic Mountain, at the center of a bull's-

2020
Student Paper

Causes and consequences of dominant and subdominant plant species effects on ecosystem function: using above-and belowground traits in an alpine meadow system

While there has been extensive studies done on how dominant affect community dynamics and ecosystem function, fewer studies address the relative influence of dominant vs. subdominant species to affect systems. Further, not enough studies have been done addressing the role of dominant vs. subdominant

2015
Student Paper

Study of population structures in Rocky Mountain Butterflies

1983
Student Paper

Geographic variation in flowering phenology in Boechera stricta: testing for adaptive response to climate across the species range

As climate continues to shift, species existing over broad and variable ranges must exhibit the ability to adapt functional traits to novel environmental conditions. In this study, I used a large-scale common garden experiment to examine the variation in flowering time of 137 Boechera stricta (Brass

2015
Student Paper

The effects of climate change on plant traits and fruiting phenology of <i>Delphinium nuttallianum</i>.

2011
Thesis

Potential impact of climate change on the phenology and reproduction of <i>Delphinium nuttallianum</i> (Ranunculaceae)

2000
Student Paper

An Epichloe endophyte alters the ecology of Poa leptocoma.

Determining mechanisms behind species ranges is vital to creating the most accurate models of species distributions under climate change. Mutualisms are an important factor to consider when examining mechanisms behind range limits of host plants, as they can have a large influence on community organ

2014
Student Paper

Expansion of herbaria data based on historically surveyed herbaceous plants in the Crested Butte area, Colorado.

Climate change has been changing plant community systems worldwide. These observations can be seen over a broad range, when resurveyed. Recording these changes in plant community structure is necessary if future plant migration studies are to be done. Herbarium data was expanded using historically s

2014
Student Paper

Direct and indirect effects of frost on growth and plant-pollinator interactions in Delphinium nuttallianum.

Global climate change-driven changes in phenology affect populations of alpine meadow wildflowers and their pollinators through direct and indirect effects. Earlier snowmelt in montane regions, caused by a warming climate, results in earlier blooming date and longer blooming period of wildflowers su

2014
Student Paper

Effects of water availability on the relationship between seed set and pollen received in Ipomopsis aggregate.

Plants systems rely on a variety of resources to survive and reproduce. The amount and quality of pollen a flower receives can determine not only the number of seeds that are produced, but also whether they will be viable or not. The purpose of the study looked at the relationship between the amount

2014
Student Paper

Home range of small mammals

1980
Article

Interspecific hybridization and mimicry in butterflies

1960New Scientist
Article

Social security: Does social position influence flight initiation distance?

A variety of factors can influence an individual’s antipredator behavior including their group size because simply being around conspecifics may reduce predation risk. Recent work has shown that it is not just being around others, but rather the specific social relationships that individuals have wi

2024Behavioral EcologyDOI: 10.1093/beheco/arad104