← Back to Speciesspecies

Bombus occidentalis

Common names: bumble bee, bumble-bee, bumblebee, western bumblebee, nectar-robbing bumble bee, bumble bees

Taxonomy: Animalia > Arthropoda > Insecta > Hymenoptera > Apidae

Regional status: native

Roles: study subject, nectar-robber, nectar robber, primary nectar robber, pollinator

ITIS TSN: 714827

Synonyms: B. occidentalis, OCC

External: RMBL Collections · iNaturalist · iDigBio · GenBank

Papers: 296 | Mentions: 332

Local Knowledge Graph (Top 77 entities)

Loading graph...

Publications (296)

thesis

Dimensions of difference: Multi-scale consequences of trait variation in bumble bees

2025Role: text_match

article

Does pollination interact with the abiotic environment to affect plant reproduction?

2025Annals of BotanyRole: text_match

article

Does pollination interact with the abiotic environment to affect plant reproduction?

2025Annals of BotanyRole: text_match

student_paper

Does sodium in floral nectar enhance pollination & plant reproduction?

2025Role: text_match

article

Effects of experimental warming on floral scent, display and rewards in two subalpine herbs

2025Annals of BotanyRole: text_match

article

Fitness costs and benefits of a non-native floral resource for subalpine solitary bees

2025OikosRole: text_match

student_paper

Foraging preferences of generalist Megachilidae

2025Role: text_match

student_paper

Functional morphology of pollen capture in Syrphid flies (Diptera syrphidae): The effects of pile density and body region

Documents (1)

federal rule

Endangered and Threatened Wildlife and Plants; Determination of Endangered Status for Ipomopsis polyantha (Pagosa Skyrocket) and Threatened Status for Penstemon debilis (Parachute Beardtongue) and Phacelia submutica (DeBeque Phacelia)

Co-occurring Species

2025

Role: text_match

article

Herbivory and water availability interact to shape the adaptive landscape in the perennial forb, Boechera stricta

2025EvolutionRole: text_match

article

Improving plant DNA metabarcoding accuracy with ecological filters and Angiosperms353: Field and pollen microscopy validation

2025Applications in Plant SciencesRole: text_match

article

Nutrient niche dynamics among wild pollinators

2025Proceedings of the Royal Society B: Biological SciencesRole: study subject

student_paper

Observing the effects of a nectar-inhabiting bacterium, Pantoea sp., and nectar robbing on male fitness in Ipomopsis aggregata

2025Role: nectar robber

student_paper

Quantifying ethanol in bumble bee honey and Colorado rocky mountain wildflowers

2025Role: text_match

student_paper

Reproductive ecology and pollination biology of Geum triflorum (prairie smoke)

2025Role: text_match

article

Shorter seasonal snow cover poses a risk to solitary bee populations in a mountainous ecosystem

2025Proceedings of the Royal Society B: Biological SciencesRole: text_match

student_paper

Temperature and relative humidity effects on nectar quantity, nectar quality, and plant-pollinator interactions

2025Role: text_match

article

Temperature influences pollinators' choice of floral partners independently of community composition

2025Journal of Animal EcologyRole: text_match

student_paper

Testing the marginal value theorem on Bombus appositus and Bombus nevadensis

2025Role: text_match

article

Up high, hot and dry: Individual reproductive output in subalpine bees declines with increasing drought severity

2025Global Change BiologyRole: text_match

article

Wild foundress queen bumble bees make numerous, short foraging trips and exhibit frequent nest failure: Insights from trap-nesting and RFID tracking

2025Ecology and EvolutionRole: text_match

chapter

Changes in insect population dynamics due to climate change

2024Effects of Climate Change on Insects: Physiological, Evolutionary, and Ecological ResponsesRole: text_match

student_paper

Does Floral Nectar Depth Correlate With Pollinator Proboscis Length?

2024Role: text_match

student_paper

Effects of Temperature and Competitor Abundance on Bumble Bee Foraging

2024Role: text_match

student_paper

Estimating Local Abundance of Bombus Queens in Meadows of Rocky Mountains, Colorado, USA

2024Role: text_match

student_paper

How do Bombus appositus and Bombus bifarius worker tongue lengths vary within a season?

2024Role: text_match

student_paper

Impact of Decreased Flower Attractiveness on Pollinator Visitation Rates and Pollinator Community Composition

2024Role: text_match

article

Intraspecific body size variation across distributional moments reveals trait filtering processes

2024Journal of Animal EcologyRole: text_match

student_paper

Investigating the potential mechanism behind bumble bee preference for Corydalis flowers inhabited by nectar specialist yeast

2024Role: text_match

student_paper

Nowhere to go but Up: Investigating Bumble Bee population Shifts over Elevational Gradients

2024Role: study subject

student_paper

Solitary bee genera differ in foraging activity timing and temperature; Evidence of a seasonal dietary shift in Hoplitis fulgida

2024Role: text_match

student_paper

The effects of elevation on flower abundance and pollinator visits on Helianthella quinquenervis

2024Role: text_match

article

The hole truth: why do bumble bees rob flowers more than once?

2024PlantsRole: nectar-robber

student_paper

Variation of wasp behavior patterns and pollination behavior on Ligusticum porteri

2024Role: text_match

article

A pathogen's spatial range is not constrained by geographical features in the flax rust pathosystem

2023Ecology and EvolutionRole: text_match

thesis

Biotic and abiotic drivers of plant-pollinator interaction rewiring

2023Role: text_match

student_paper

Characterization of thermal tolerance in sub-alpine bumblebee species

2023Role: text_match

article

Community context mediates effects of pollinator loss on seed production

2023EcosphereRole: text_match

student_paper

Determining pollinator behavior differences bumblebees and flies.

2023Role: text_match

student_paper

Do pollinator and plant diversity vary with microclimate heterogeneity?

2023Role: text_match

student_paper

Early Snowmelt’s Effects on Floral Traits and Rewards of Two Subalpine Plant Species

2023Role: text_match

article

Emergent social structure is typically not associated with survival in a facultatively social mammal

2023Biology LettersRole: text_match

article

Extensive regional variation in the phenology of insects and their response to temperature across North America

2023EcologyRole: text_match

article

Herbivory damage but not plant disease under experimental warming is dependent on weather for three subalpine grass species

2023Journal of Animal EcologyRole: text_match

student_paper

Hot and Cold: Assessing the Thermal Limitations of Bumble Bees in a Changing Climate

2023Role: text_match

student_paper

In your stomach or in your nectar? Disentangling the effects of two pollination-related yeasts on bumblebee behavior and foraging

2023Role: text_match

student_paper

Investigating the Effect of Drought on Floral Traits Mediating Pollinator Interactions

2023Role: text_match

article

Long-term declines in insect abundance and biomass in a subalpine habitat

2023EcosphereRole: text_match

student_paper

Talking Yeast: The characterization of bumblebee- and nectar- specialist yeast volatiles in Corydalis caseana

2023Role: text_match

article

The buzz around biodiversity decline: Detecting pollinator shifts using a systematic review

2023iScienceRole: text_match

thesis

The causes and consequences of pollen defence

2023Role: text_match

article

The dispersal of microbes among and within flowers by butterflies

2023Ecological EntomologyRole: text_match

thesis

(Socio-)ecological tools and insights for a changing climate

2022Role: text_match

student_paper

Ant Behavioral Responses to Aphids Colonizing Ligusticum porteri

2022Role: text_match

thesis

Bumble bee queen plasticity and social regulation of traits

2022Role: text_match

article

Climate change and phenology

2022WIREs Climate ChangeRole: text_match

student_paper

Comparison of Bee Bowls and Netting for Monitoring Native Bees

2022Role: text_match

student_paper

Determining changes in floral volatile composition of Ipomopsis aggregata in response to nectar robbing and its associated microorganisms

2022Role: nectar robber

article

Earlier snow melt and reduced summer precipitation alter floral traits important to pollination

2022Global Change BiologyRole: text_match

article

Ecological Drivers and Consequences of Bumble Bee Body Size Variation

2022Environmental Entomology Role: text_match

student_paper

Effects of Floral Abundance, Pollinator Interactions, and Floral Morphology on Stigmatic Pollen Deposition

2022Role: text_match

student_paper

Effects of clumping of Delphinium barbeyi on pollination

2022Role: text_match

student_paper

How understory bee communities compare to open meadows in the Rocky Mountains

2022Role: text_match

article

Legume germination is delayed in dry soils and in sterile soils devoid of microbial mutualists: Species-specific implications for upward range expansions

2022Ecology and EvolutionRole: text_match

article

Life-history traits predict responses of wild bees to climate variation

2022Proceedings of the Royal Society B: Biological SciencesRole: text_match

student_paper

Nest Distribution of Bombus spp. Across Different Habitat Types

2022Role: study subject

thesis

Perturbations in plant-pollinator networks: Integrating theoretical and empirical approaches to understand responses to global change

2022Role: text_match

article

Removing flowers of a generalist plant changes pollinator visitation, composition, and interaction network structure

2022EcosphereRole: text_match

article

Simultaneous niche expansion and contraction in plant–pollinator networks under drought

2022OikosRole: text_match

article

Species-specific traits predict whole-assemblage detritus processing by pond invertebrates

2022OecologiaRole: text_match

student_paper

Sweet and salty: Pollinators and sodium-enriched nectar

2022Role: text_match

student_paper

Temporal variation in high elevation plant-pollinator communities

2022Role: text_match

student_paper

The effects of environmental variation on daily abundance patterns and diet breadth of bumble bee species

2022Role: text_match

student_paper

The Effect of Snowmelt Timing on Pollinator Visitation to Subalpine Wildflowers

2022Role: text_match

article

The shifting importance of abiotic and biotic factors across the life cycles of wild pollinators

2022Journal of Animal EcologyRole: study subject

article

Winters are changing: snow effects on Arctic and alpine tundra ecosystems

2022Arctic ScienceRole: text_match

student_paper

Within Day Temporal Variation Within Plant-Pollinator Networks

2022Role: text_match

article

Chemical Variation among Castes, Female Life Stages and Populations of the Facultative Eusocial Sweat Bee Halictus rubicundus (Hymenoptera: Halictidae)

2021Journal of Chemical EcologyRole: text_match

article

Chemical Variation among Castes, Female Life Stages and Populations of the Facultative Eusocial Sweat Bee Halictus rubicundus (Hymenoptera: Halictidae)

2021Journal of Chemical EcologyRole: text_match

student_paper

Comparative study on pollinator visits to high elevation plant communities in Virginia Basin, Gothic, Colorado

2021Role: text_match

student_paper

Comparing pollen distribution on pollinators to floral community composition in the East River Valley

2021Role: text_match

article

Demographic Consequences of Phenological Shifts in Response to Climate Change

2021Annual Review of Ecology, Evolution, and SystematicsRole: text_match

student_paper

Effects of Climate Variation and Nesting Traits on Sex Ratios of Adult Solitary Bees

2021Role: text_match

student_paper

Effects of climate change on the elevational distribution of bumble bees near Crested Butte, CO: comparing data across 47 years

2021Role: study subject

student_paper

Effects of high temperature and early snowmelt on floral morphology and volatile organic compounds in Ipomopsis aggregata

2021Role: text_match

student_paper

Effects of nectar robbing on the volatile organic compounds and nectar chemistry of intraindividual flowers in Corydalis caseana ssp. brandegeei

2021Role: nectar robber

article

Experimental Test of the Combined Effects of Water Availability and Flowering Time on Pollinator Visitation and Seed Set

2021Frontiers of Ecology & EvolutionRole: text_match

article

From the ground up: Building predictions for how climate change will affect belowground mutualisms, floral traits, and bee behavior

2021Climate Change EcologyRole: text_match

student_paper

Investigating the relationship between Bombus appositus abundance and its overlap with key floral resources

2021Role: text_match

student_paper

Nectar Variation in Simple and Compound Flowers; and its Effects on Plant Pollinator Interactions

2021Role: text_match

article

Nectar addition changes pollinator behavior but not plant reproduction in pollen rewarding Lupinus argenteus

2021American Journal of BotanyRole: text_match

article

Open-top warming chambers reduce animal pollination of two subalpine herbs

2021Journal of Pollination EcologyRole: text_match

article

Plant–pollinator interaction niche broadens in response to severe drought perturbations

2021OecologiaRole: text_match

article

Snow melt timing acts independently and in conjunction with temperature accumulation to drive subalpine plant phenology

2021Global Change BiologyRole: text_match

student_paper

The Effect of Climate Change on Two Primitively Eusocial Bees

2021Role: text_match

thesis

The effects of anthropogenic change on pollination in plant-pollinator communities

2021Role: text_match

student_paper

The effects of drought on subalpine floral community diversity

2021Role: text_match

article

The sensory and cognitive ecology of nectar robbing

2021Frontiers in Ecology and EvolutionRole: text_match

article

Trade-off mitigation: a conceptual framework for understanding floral adaptation in multispecies interactions

2021Biological ReviewsRole: text_match

article

Unraveling the ecological and evolutionary impacts of a plant invader on the pollination of a native plant

2021Biological Invasions doi 10.1007/s10530-021-02457-zRole: text_match

student_paper

Variation of Pollen Mass Across Species, Habitat Types, and Time

2021Role: text_match

article

Are ants botanists? Ant associative learning of plant chemicals mediates foraging for carbohydrates

2020Ecological EntomologyRole: text_match

article

Bee phenology is predicted by climatic variation and functional traits

2020Ecology LettersRole: text_match

article

Birds Perceive More Intraspecific Color Variation in Bird-Pollinated Than Bee-Pollinated Flowers

2020Frontiers in Plant Science. doi 10.3389/fpls.2020.590347Role: text_match

article

Bumble bees are constant to nectar-robbing behaviour despite low switching costs

2020Animal BehaviourRole: text_match

student_paper

Butterfly foraging and the dispersal of microbes among & within flowers

2020Role: text_match

article

Changing Climate Drives Divergent and Nonlinear Shifts in Flowering Phenology across Elevations

2020Current BiologyRole: text_match

student_paper

Climate Change and Parasitism: An Investigation into Parasitic Bees' Climate Responses as Compared to their Hosts

2020Role: text_match

article

Competition for nectar resources does not affect bee foraging tactic constancy

2020Ecological EntomologyRole: study subject

thesis

Early snowmelt and warming independently drive the reproductive phenology of subalpine wildflowers

2020Role: text_match

article

Effects of climate change on alpine plants and their pollinators

2020Annals of the New York Academy of SciencesRole: text_match

article

Pollinator visitation rate and effectiveness vary with flowering phenology

2020American Journal of BotanyRole: text_match

student_paper

Quantifying Nectar Trait Responses to Natural Variation in Water Availability in Subalpine Plant Communities

2020Role: text_match

article

Temporal flexibility in the structure of plant–pollinator interaction networks

2020OikosRole: text_match

article

Towards a U.S. national program for monitoring native bees

2020Biological Conservation doi 10.1016/j.biocon.2020.108821Role: text_match

article

Untangling the seasonal dynamics of plant-pollinator communities

2020Nature Communications. DOI: 10.1038/s41467-020-17894-yRole: text_match

student_paper

What are the bees' needs? Analyzing the diet breadth for three Rocky Mountain Bumble Bees

2020Role: text_match

chapter

Effects of Climate Change on Birds

2019Role: text_match

student_paper

Effects of weather and floral density on foraging activity of cavity nesting bees ( Osmia spp.)

2019Role: text_match

thesis

Floral reward strategies, visitor behavior, and plant reproductive outcomes

2019Role: text_match

student_paper

Low to Mid Elevational Resurvey of Bumble bee Distributions in Response to Climate Change

2019Role: study subject

student_paper

Niche breadth changes in response to environmental perturbation: the impact of early snowmelt on subalpine plant-pollinator specialization

2019Role: text_match

article

No evidence that gut microbiota impose a net cost on their butterfly host

2019Molecular EcologyRole: text_match

article

Parasitism modifies the direct effects of warming on a hemiparasite and its host

2019PLOS ONERole: text_match

article

Phenology as a process rather than an event: from individual reaction norms to community metrics

2019Ecological Monographs doi 10.1002/ecm.1352Role: text_match

article

Pollen and vegetative secondary chemistry of three pollen-rewarding lupines

2019American Journal of BotanyRole: text_match

student_paper

Pollinator Community Compositions Across Four Subalpine Plant Species

2019Role: text_match

student_paper

Quantifying Nectar Resources in Bumble Bee Visited Plants

2019Role: text_match

article

Reproductive losses due to climate change? Induced earlier flowering are not the primary threat to plant population viability in a perennial herb

2019Journal of EcologyRole: text_match

student_paper

Social transmission of a novel foraging trait in yellow-bellied marmots

2019Role: text_match

thesis

Stoichiometry and infectious disease: Linking chemical elements and parasitic interactions

2019Role: text_match

student_paper

The Effects of Exclusion Bags and Open-Top Chambers on Pollinator Activity

2019Student paperRole: text_match

student_paper

The effect of 10 years of repeat lethal sampling on wild bee abundance

2019Role: text_match

article

The function of floral orientation in bluebells: interactions with pollinators and rain in two species of Mertensia (Boraginaceae)

2019Journal of Plant EcologyRole: text_match

student_paper

Volatile organic compounds as signals for pollinators and their consistency across years

2019Role: text_match

student_paper

Across Caste Variation of Proboscis Length and Within Caste Phenotype Matching of Subalpine Bumble Bees (Bombus spp.)

2018Role: study subject

student_paper

Characterizing nectar content in wet and dry subalpine meadows during an extreme summer drought

2018Role: text_match

student_paper

Comparing Plant-Pollinator Network Structure between Drought and Non-Drought Years

2018Role: text_match

article

Costs and benefits of alternative food handling tactics help explain facultative exploitation of pollination mutualisms

2018Ecological Society of AmericaRole: text_match

thesis

Effects of Climate Change on Plants, Pollinators and Their Interactions

2018Role: text_match

student_paper

Evaluating Critical Thermal Tolerances of Solitary Bees

2018Role: text_match

student_paper

The effect of surrounding bloom color on pan trap success in sampling Rocky Mountain bees

2018Role: text_match

article

Why are some plant-nectar robber interactions commensalisms?

2018OikosRole: nectar robber

other

40 years of progress in pollination biology, and what it means for citizen scientists

2017Aquilegia: Newsletter of the Colorado Native Plant SocietyRole: text_match

student_paper

Consequences of Nectar Robbing in Colorado Wildflowers: Insect Variation and Nectar Sugar Concentration

2017Role: nectar robber

article

Direct benefits and indirect costs of warm temperatures for high-elevation populations of a solitary bee

2017EcologyRole: text_match

article

Diversification of Type VI Secretion System Toxins Reveals Ancient Antagonism among Bee Gut Microbes

2017mBioRole: text_match

student_paper

Do the differing pollen foraging strategies of Megachile sp. and Bombus spp. result in differing pollen removal and deposition rates in Lupinus bakeri?

2017Role: text_match

student_paper

Does bumble bee (Bombus spp.) diet breadth vary with differences in floral resource abundance?

2017Role: text_match

article

Effects of road dust on the pollination and reproduction of wildflowers

2017International Journal of Plant SciencesRole: text_match

article

Facilitated exploitation of pollination mutualisms: fitness consequences for plants

2017Journal of EcologyRole: primary nectar robber

article

Foraging strategy predicts foraging economy in a facultative secondary nectar robber

2017OikosRole: primary nectar robber

article

Interactions between bee foraging and floral resource phenology shape bee populations and communities

2017Current Opinion in Insect ScienceRole: text_match

article

Interannual bumble bee abundance is driven by indirect climate effects on floral resource phenology

2017Ecology LettersRole: text_match

article

Metabolism of toxic sugars by the bee gut symbiont Gilliamella apicola

2017mBioRole: text_match

thesis

Plant-Pollinator Interactions and Environmental Change: Effects of Experimental Changes in Phenology and Water Availability on a Montane Wildflower

2017Role: text_match

article

Plant-pollinator interactions under climate change: the use of spatial and temporal transplants

2017Applications in Plant SciencesRole: text_match

other

Pollinator traits and competitive context shape dynamic foraging behavior in bee communities

2017bioRxivRole: study subject

article

Shifts in water availability mediate plantâ€“pollinator interactions

2017New PhytologistRole: text_match

student_paper

The Effects of Early Snow-melt on the Pollination and Seed Production of Delphinium nuttallianum

2017Role: text_match

student_paper

Variability in the effectiveness of Penstemon strictus pollinators and the role that water availability plays

2017Role: text_match

student_paper

Assessing pollinatorsâ€™ contribution to the reproductive success of Mertensia ciliata

2016Role: text_match

article

Asteraceae pollen provisions protect Osmia mason bees (Hymenoptera: Megachilidae) from brood parasitism

2016American NaturalistRole: text_match

thesis

Competitive context drives pollinator behavior: linking foraging plasticity, natural pollen deposition, and plant reproduction.

2016Role: text_match

article

Delving deeper: Questioning the decline of long-tongued bumble bees, long-tubed flowers and their mutualisms with climate change

2016Journal of Pollination EcologyRole: study subject

student_paper

Do bees show response diversity to environmental variables in a montane ecosystem?

2016Role: text_match

article

Drought, pollen and nectar availability, and pollination success

2016EcologyRole: text_match

student_paper

Effects of Insect Damage to Helianthella quinquenervis (Asteraceae) Inflorescences on Pollinator Visitation

2016Role: text_match

article

Effects of climate change on phenologies and distributions of bumble bees and the plants they visit

2016EcosphereRole: study subject

article

Heterospecific pollen deposition in Delphinium barbeyi: linking stigmatic pollen loads to reproductive output in the field

2016Annals of BotanyRole: text_match

article

Phenological change in a spring ephemeral: implications for pollination and plant fitness

2016Global Change BiologyRole: text_match

student_paper

Pollen thieving and pollen limitation in gynodioecious Polemonium foliosissimum (Polemoniaceae)

2016Role: text_match

article

Site fidelity by bees drives pollination facilitation in sequentially blooming plant species

2016EcologyRole: text_match

article

An altitudinal cline in UV floral pattern corresponds with a behavioral change of a generalist pollinator assemblage

2015EcologyRole: text_match

article

Bee- to bird-pollination shifts in Penstemon: effects of floral-lip removal and corolla constriction on bumble bee preference

2015Evolutionary EcologyRole: text_match

student_paper

Does Bumble Bee Diet Breadth vary with the Floral Abundance in a Meadow?

2015Role: text_match

student_paper

Does snowmelt timing affect bumble bee colony abundance?

2015Role: text_match

student_paper

Effects of Bombus Pollinator Removal on Fly Foraging Behavior.

2015Role: text_match

article

Effects of increased flight on the energetics and life history of the butterfly Speyeria mormonia

2015PLoS OneRole: text_match

student_paper

Exploring the behavioral rules influencing sociality in a facultatively social species, yellow-bellied marmots

2015Role: text_match

article

Genes Suggest Ancestral Colour Polymorphisms Are Shared across Morphologically Cryptic Species in Arctic Bumblebees

2015PLoS OneRole: text_match

article

Male bumble bees are important pollinators of a late-blooming plant

2015Arthropod-Plant InteractionsRole: text_match

student_paper

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

2015Role: nectar robber

article

Using the literature to test pollination syndromes - some methodological cautions

2015Journal of Pollination EcologyRole: text_match

student_paper

Why doesn't nectar robbing decrease seed set in some bee-pollinated plants?

2015Role: text_match

article

Nectar Yeasts in the Tall Larkspur Delphinium barbeyi (Ranunculaceae) and Effects on Components of Pollinator Foraging Behavior

2014PloS oneRole: text_match

thesis

Roles of pollinators, seed predators, and vertebrate herbivores in maintaining females in the gynodioecious Polemonium foliosissimum.

2014Role: text_match

article

Selection of trait combinations through bee and fly visitation to flowers of Polemonium foliosissimum

2014Journal of Evolutionary BiologyRole: text_match

article

Stimulation of flower nectar replenishment by removal: a survey of eleven animal-pollinated plant species

2014Journal of Pollination EcologyRole: text_match

student_paper

The Impact of Primary and Secondary Robbing on Hummingbird Pollination.

2014Role: nectar robber

student_paper

Comparing Bombus pollinator efficacies in Delphinium barbeyi (Ranunculaceae) reproductive success

2013Role: pollinator

article

Dose-dependent effects of nectar alkaloids in a montane plant-pollinator community

2013Journal of EcologyRole: pollinator

student_paper

Nectar dwelling yeasts and their effects on pollinator preference

2013Role: text_match

article

Norditerpene alkaloid concentrations in tissues and floral rewards of larkspurs and impacts on pollinators

2013Biochemical Systematics and EcologyRole: text_match

student_paper

Spatial variation in bee abundance and diversity across southern Rocky Mountain habitats

2013Role: text_match

student_paper

The effects of road dust on pollination and reproduction of the native wildflower species, Delphinium nuttallianum

2013Role: text_match

student_paper

The influence of aboveground and belowground resources on the persistence of females for a gynodioecious plant

2013Role: text_match

student_paper

Assessing the impacts of long-term pan trapping on native bee populations in sub-alpine ecosystems

2012Role: text_match

article

Asynchronous changes in phenology of migrating Broad-tailed Hummingbirds and their early season nectar resources

2012EcologyRole: text_match

student_paper

Effects of floral diversity and density on fly (Diptera:Bombyliidae and Syrphidae) floral foraging fidelity in subalpine meadows

2012Role: text_match

student_paper

Investigating the impact of pollinator- and seed predator-mediated selection on floral traits in an Ipomopsis aggregata and I. tenuituba (Polemoniaceae) hybrid zone

2012Role: pollinator

article

Local geographic distributions of bumble bees near Crested Butte, Colorado: Competition and community structure revisited

2012Environmental EntomologyRole: text_match

student_paper

Single-visit pollination efficacy of psithyrus insularism and megachile on chamerion augustifolium

2012Role: text_match

student_paper

The effects of floral traits on the behaviors of pollinators and pre-dispersal seed predators in a gynodioecious species, Polemonium foliosissimum.

2012Role: text_match

article

When resources don't rescue: flowering phenology and species interactions affect compensation to herbivory in Ipomopsis aggregata

2012OikosRole: nectar robber

article

Activity and abundance of bumble bees near Crested Butte, CO: diel, seasonal, and elevation effects

2011Ecological EntomologyRole: study subject

article

Additive effects of herbivory, nectar robbing and seed predation on male and female fitness components of the host plant Ipomopsis aggregata

2011OecologiaRole: nectar robber

article

An examination of synchrony between insect emergence and flowering in Rocky Mountain meadows

2011Ecological MonographsRole: text_match

article

Butterflies show flower colour preferences but not constancy in foraging at four plant species

2011Ecological EntomologyRole: text_match

student_paper

Diptera behavioral response to targeted Bombus removal

2011Role: text_match

article

Seasonal change in a pollinator community and the maintenance of style length variation in Mertensia fusiformis (Boraginaceae)

2011Annals of BotanyRole: text_match

student_paper

The effects of phenology on Delphinium nuttallianum

2011Role: nectar robber

student_paper

Bee sampling has no effect on bee abundance in montane meadows

2010Role: text_match

article

Beyond biomass: measuring the effects of community-level nitrogen enrichment on floral traits, pollinator visitation and plant reproduction

2010J of EcologyRole: text_match

article

Consequences of variation in flowering time within and among individuals of Mertensia fusiformis (Boraginaceae), an early spring wildflower

2010Amer J of BotanyRole: text_match

student_paper

Effects of multi-species interactions in gynodioecious populations of Polemonium foliosissimum

2010Role: text_match

article

Flowering phenology, fruiting success and progressive deterioration of pollination in an early-flowering geophyte

2010Phil. Trans. R. Soc. B.Role: text_match

student_paper

Nectar and pollen rewards of invasive plants and their native congeners

2010Role: text_match

thesis

Plant–Pollinator interactions in a changing climate

2010Role: text_match

article

Pollination potential of male bumble bees (Bombus impatiens): movement patterns and pollen-transfer efficiency

2010Journal of Pollination EcologyRole: text_match

student_paper

Testing the oviposition cues that drive preference of Hylemya for different sexes of Polemonium foliosissimum

2010Role: text_match

article

Background complexity affects colour preference in bumble bees

2009NaturwissenschaftenRole: text_match

student_paper

Bumblebee foraging on vertical inflorescences: optimal or not?

2009Role: text_match

student_paper

Does stigma-anther separation prevent sexual interference in dwarf bluebells (Mertensia fusiformis)?

2009Role: text_match

article

Ecology and evolution of plant-pollinator interactions

2009Annals of BotanyRole: text_match

article

Effects of flowering plant density on pollinator visitation, pollen receipt, and seed production in Delphinium barbeyi

2009American Journal of BotanyRole: text_match

student_paper

Effects of nectar robbing on pollen deposition and hummingbird-pollinator behavior in Ipomopsis aggregata

2009Role: nectar robber

student_paper

Helianthella quinquernervis ray floret removal: effect on insect visitation frequency

2009Role: text_match

article

Nectar sugar limits larval growth of solitary bees (Hymenoptera: Megachilidae)

2009Environmental EntomologyRole: text_match

article

Pollinators of the Rocky Mountain columbine: temporal variation, functional groups and associations with floral traits

2009Annals of BotanyRole: text_match

article

Realized tolerance to nectar robbing: compensation to floral enemies in Ipomopsis aggregata

2009Annals of BotanyRole: nectar robber

student_paper

The relationships among butterfly size, visitation rate, handling time, and floral display size

2009Role: text_match

article

Variation in the impact of climate change on flowering phenology and abundance: an examination of two pairs of closely related wildflower species

2009American Journal of BotanyRole: text_match

student_paper

Variation in the structure and dynamics of bee assemblages across distinct montane meadows

2009Role: text_match

thesis

Bottom-up effects of nutrient enrichment on plants, pollinators, and their interactions

2008Role: text_match

student_paper

Climate Change is Causing A Decline in Bombus occidentalis by Reducing its Floral Resources

2008Role: study subject

student_paper

Does road dust affect reproduction of Delphinium nelsonii and Ipomopsis aggregata

2008Role: text_match

student_paper

Effect of Soil Metals on Pollination of Subalpine Wildflowers

2008Role: text_match

article

Effects of climate change on phenology, frost damage, and floral abundance of montane wildflowers

2008EcologyRole: text_match

article

Interactions between nectar robbers and seed predators mediated by a shared host plant, Ipomopsis aggregata

2008OecologiaRole: nectar robber

article

Mechanisms of tolerance to floral larceny in two animal-pollinated wildflowers, Polemonium viscosum and Ipomopsis aggregata

2008EcologyRole: pollinator

article

Phoretic mite discrimination among male burying beetle (Nicrophorus investigator) hosts

2008Annals of the Entomological Society of AmericaRole: text_match

thesis

Reciprocal benefits in a plant-pollinator mutualism

2008Role: text_match

student_paper

Rocky Mountain Bombus pathogen survey: Are invasive plants affecting pathogen prevalence and intensity?

2008Role: text_match

article

Behavior of inexperienced bumble bees toward spatial clumping of nectar

2007Entomologia GeneralisRole: text_match

student_paper

Changing distributions, changing climate: Using Bombus as an indicator of global warming near Crested Butte, Colorado

2007Role: study subject

student_paper

Pollination subsidies between wetland and dry meadow habitats

2007Role: text_match

article

Predicting the effects of nectar robbing on plant reproduction: implications of pollen limitation and plant mating system

2007American Journal of BotanyRole: nectar robber

student_paper

The effect of sampling effort on species richness estimates of flower visitors

2007Role: text_match

student_paper

Are native bees picky enough? The effect of an invasive plant, Linaria vulgaris, on the foraging of native bee pollinators

2006Role: text_match

thesis

Floral larceny: Implications, resistance, and the potential for tolerance

2006Role: text_match

student_paper

Nectar robbing patterns in Ipomopsis aggregata and Linaria vulgaris

2006Role: nectar robber

article

Self-sterility in Ipomopsis aggregata (Polemoniaceae) is due to prezygotic ovule degeneration

2006American Journal of BotanyRole: text_match

student_paper

The Effects of Soil Nitrogen Availability on Plant Reproduction and Solitary Bee Behavior

2006Role: text_match

article

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

2005OikosRole: pollinator

article

Interactions among nectar robbing, floral herbivory, and ant protection in Linaria vulgaris

2005OikosRole: text_match

student_paper

Nectar robbing in Ipomopsis aggregata: does high nectar production confer tolerance?

2005Role: nectar robber

article

Temporal and spatial variation in pollination of a montane herb: a seven-year study

2005EcologyRole: nectar robber

student_paper

Cardamine cordifolia Pollination effects on seed and fruit production

2004Role: text_match

chapter

Adaptive speciation

2004Role: text_match

student_paper

DOES LINARIA VULGARIS, AN INVASIVE, INTERFERE WITH THE POLLINATION OF THE NATIVE SPECIES, POTENTILLA PULCHERRIMA?

2004Role: text_match

article

Temperature regulation in burying beetles (Nicrophorus spp.: Coleoptera: Silphidae): effects of body size, morphology and environmental temperature

2004The Journal of Experimental BiologyRole: text_match

article

The dual role of floral traits: pollinator attraction and plant defense

2004EcologyRole: nectar robber

thesis

The ecology of pollination and nectar robbing in Linaria vulgaris in the Colorado Rocky Mountains

2004TSpaceRole: text_match

article

Changes in flowering and abundance of Delphinium nuttallianum (Ranunculaceae) in response to a subalpine climate warming experiment

2003Global Change BiologyRole: text_match

article

Impact of nectar robbing on estimates of pollen flow: conceptual predictions and emperical outcomes

2003EcologyRole: nectar robber

article

Linking pollinator visitation rate and pollen receipt

2003American Journal of BotanyRole: text_match

article

Pollen transfer by hummingbirds and bumblebees, and divergence of pollination modes in Penstemon

2003EvolutionRole: text_match

article

Rescue of stranded pollen grains by secondary transfer

2003Plant Species BiologyRole: text_match

student_paper

The effects of ungulate herbivory and nutrient variation on pollen reciept in Ipomopsis aggregata

2002Role: nectar robber

article

Variation in nectar robbing over time, space, and species

2002OecologiaRole: nectar robber

article

Volatile production by the buds and corollas of two sympatric, confamial plants, Ipomopsis aggregata and Polemonium foliosissimum

2002Journal of Chemical EcologyRole: pollinator

article

Pollination, breeding system, and genetic structure in two sympatric Delphinium (Ranunculaceae) species

2001American Journal of BotanyRole: text_match

article

Pollinator-mediated selection on a flower color polymorphism in experimental populations of Antirrhinum (Scrophulariaceae)

2001American Journal of BotanyRole: text_match

article

The effects of a bumble bee nectar robber on plant reproductive success and pollinator behavior

2001American Journal of BotanyRole: text_match

article

The impact of floral larceny on individuals, populations, and communities

2001OecologiaRole: pollinator

article

Are nectar robbers cheaters or mutualists?

2000EcologyRole: nectar robber

article

Consequences of nectar robbing for realized male function in a hummingbird-pollinated plant

2000EcologyRole: nectar robber

article

Reproductive biology of a North American subalpine plant: Corydalis caseana A. Gray ssp. brandegei (S. Watson) G. B. Ownbey

2000Plant Species BiologyRole: text_match

article

Effects of Local Density on Pollination and Reproduction in Delphinium nuttallianum and Aconitum columbianum (Ranunculaceae)

1999American Journal of BotanyRole: text_match

article

Nectar-robbing bumble bees reduce the fitness of Ipomopsis aggregata (Polemoniaceae)

1999EcologyRole: text_match

article

A trade-off between the frequency and duration of bumblebee visits to flowers

1998OecologiaRole: text_match

article

Nectar Robbing in Ipomopsis aggregata: Effects on Pollinator Behavior and Plant Fitness

1998OecologiaRole: nectar robber

article

Trapline foraging by bumble bees: III. Temporal patterning of visits

1998Behavioral EcologyRole: text_match

article

Analysis of pollinator foraging: tests for non-random behavior

1997Functional EcologyRole: text_match

article

Trapline foraging by bumble bees: II. Definition and detection from sequence data

1997Behavioral EcologyRole: text_match

article

Microdistributions, food resources and feeding habits of filter-feeding Trichoptera in the Upper Colorado River

1996Archiv für HydrobiologieRole: text_match

article

Solitary behavior in a high-altitude population of the social sweat bee Halictus rubicundus (Hymenoptera: Halictidae)

1996Behav Ecol SociobiolRole: text_match

article

Categorization of food types enhances foraging performance of bumble bees

1994Animal BehaviourRole: text_match

article

Heterogeneity among floral visitors leads to discordance between removal and deposition of pollen

1991EcologyRole: text_match

article

Nectar standing crops in Delphinium nelsonii flowers: spatial autocorrelation among plants?

1990EcologyRole: text_match

article

Evolutionary options for maximizing pollen dispersal of animal-pollinated plants

1989American NaturalistRole: text_match

article

Evolutionary options for maximizing pollen dispersal of animal-pollinated plants

1989American NaturalistRole: text_match

article

Comparative studies of pollen and fluorescent dye transport by bumble bees visiting Erythronium grandiflorum

1986OecologiaRole: text_match

article

Pollen transport and deposition by bumble bees in Erythronium: influences of floral nectar and bee grooming

1986Journal of EcologyRole: text_match

article

Floral morphology and cross-pollination in Erythronium grandiflorum (Liliaceae)

1985American Journal of BotanyRole: text_match

article

The pollination ecology of Aquilegia elegantula and A. caerulea (Ranunculaceae) in Colorado

1978American Journal of BotanyRole: text_match

Bombus occidentalis

Local Knowledge Graph (Top 77 entities)

Publications (296)

Dimensions of difference: Multi-scale consequences of trait variation in bumble bees

Does pollination interact with the abiotic environment to affect plant reproduction?

Does pollination interact with the abiotic environment to affect plant reproduction?

Does sodium in floral nectar enhance pollination & plant reproduction?

Effects of experimental warming on floral scent, display and rewards in two subalpine herbs

Fitness costs and benefits of a non-native floral resource for subalpine solitary bees

Foraging preferences of generalist Megachilidae

Functional morphology of pollen capture in Syrphid flies (Diptera syrphidae): The effects of pile density and body region

Documents (1)

Endangered and Threatened Wildlife and Plants; Determination of Endangered Status for Ipomopsis polyantha (Pagosa Skyrocket) and Threatened Status for Penstemon debilis (Parachute Beardtongue) and Phacelia submutica (DeBeque Phacelia)

Co-occurring Species

Bombus terrestris

Bombus impatiens

Bombus

Bombus flavifrons

Bombus balteatus

Bombus bifarius

Bombus appositus

Bombus mixtus

Bombus fervidus

Bombus nevadensis

Herbivory and water availability interact to shape the adaptive landscape in the perennial forb, Boechera stricta

Improving plant DNA metabarcoding accuracy with ecological filters and Angiosperms353: Field and pollen microscopy validation

Nutrient niche dynamics among wild pollinators

Observing the effects of a nectar-inhabiting bacterium, Pantoea sp., and nectar robbing on male fitness in Ipomopsis aggregata

Quantifying ethanol in bumble bee honey and Colorado rocky mountain wildflowers

Reproductive ecology and pollination biology of Geum triflorum (prairie smoke)

Shorter seasonal snow cover poses a risk to solitary bee populations in a mountainous ecosystem

Temperature and relative humidity effects on nectar quantity, nectar quality, and plant-pollinator interactions

Temperature influences pollinators' choice of floral partners independently of community composition

Testing the marginal value theorem on Bombus appositus and Bombus nevadensis

Up high, hot and dry: Individual reproductive output in subalpine bees declines with increasing drought severity

Wild foundress queen bumble bees make numerous, short foraging trips and exhibit frequent nest failure: Insights from trap-nesting and RFID tracking

Changes in insect population dynamics due to climate change

Does Floral Nectar Depth Correlate With Pollinator Proboscis Length?

Effects of Temperature and Competitor Abundance on Bumble Bee Foraging

Estimating Local Abundance of Bombus Queens in Meadows of Rocky Mountains, Colorado, USA

How do Bombus appositus and Bombus bifarius worker tongue lengths vary within a season?

Impact of Decreased Flower Attractiveness on Pollinator Visitation Rates and Pollinator Community Composition

Intraspecific body size variation across distributional moments reveals trait filtering processes

Investigating the potential mechanism behind bumble bee preference for Corydalis flowers inhabited by nectar specialist yeast

Nowhere to go but Up: Investigating Bumble Bee population Shifts over Elevational Gradients

Solitary bee genera differ in foraging activity timing and temperature; Evidence of a seasonal dietary shift in Hoplitis fulgida

The effects of elevation on flower abundance and pollinator visits on Helianthella quinquenervis

The hole truth: why do bumble bees rob flowers more than once?

Variation of wasp behavior patterns and pollination behavior on Ligusticum porteri

A pathogen's spatial range is not constrained by geographical features in the flax rust pathosystem

Biotic and abiotic drivers of plant-pollinator interaction rewiring

Characterization of thermal tolerance in sub-alpine bumblebee species

Community context mediates effects of pollinator loss on seed production

Determining pollinator behavior differences bumblebees and flies.

Do pollinator and plant diversity vary with microclimate heterogeneity?

Early Snowmelt’s Effects on Floral Traits and Rewards of Two Subalpine Plant Species

Emergent social structure is typically not associated with survival in a facultatively social mammal

Extensive regional variation in the phenology of insects and their response to temperature across North America

Herbivory damage but not plant disease under experimental warming is dependent on weather for three subalpine grass species

Hot and Cold: Assessing the Thermal Limitations of Bumble Bees in a Changing Climate

In your stomach or in your nectar? Disentangling the effects of two pollination-related yeasts on bumblebee behavior and foraging

Investigating the Effect of Drought on Floral Traits Mediating Pollinator Interactions

Long-term declines in insect abundance and biomass in a subalpine habitat

Talking Yeast: The characterization of bumblebee- and nectar- specialist yeast volatiles in Corydalis caseana

The buzz around biodiversity decline: Detecting pollinator shifts using a systematic review

The causes and consequences of pollen defence

The dispersal of microbes among and within flowers by butterflies

(Socio-)ecological tools and insights for a changing climate

Ant Behavioral Responses to Aphids Colonizing <i> Ligusticum porteri </i>

Bumble bee queen plasticity and social regulation of traits

Climate change and phenology

Comparison of Bee Bowls and Netting for Monitoring Native Bees

Determining changes in floral volatile composition of <i> Ipomopsis aggregata </i> in response to nectar robbing and its associated microorganisms

Earlier snow melt and reduced summer precipitation alter floral traits important to pollination

Ecological Drivers and Consequences of Bumble Bee Body Size Variation

Effects of Floral Abundance, Pollinator Interactions, and Floral Morphology on Stigmatic Pollen Deposition

Effects of clumping of <i> Delphinium barbeyi </i> on pollination

How understory bee communities compare to open meadows in the Rocky Mountains

Legume germination is delayed in dry soils and in sterile soils devoid of microbial mutualists: Species-specific implications for upward range expansions

Life-history traits predict responses of wild bees to climate variation