598 results — topic: Insect Ecology
Multi-year census of arthropod abundance on the plant Ligusticum porteri near Gothic, CO
The purpose of this study was to track year-to-year variation in aphid abundance on the host plant Ligusticum porteri (Apiaceae). We censused arthropod abundance on the flowering stalks of L. porteri weekly in June-August from 2012 to 2020. The censuses took place in ten L. porteri populations near
Multi-year census of arthropod abundance on the plant Ligusticum porteri near Gothic, CO
The purpose of this study was to track year-to-year variation in aphid abundance on the host plant Ligusticum porteri (Apiaceae). We censused arthropod abundance on the flowering stalks of L. porteri weekly in June-August from 2012 to 2022. The censuses took place in ten L. porteri populations near
Mechanisms underlying plant sexual dimorphism in multi-trophic arthropod communities
A growing body of research documents the importance of plant genetic effects on arthropod community structure. However, the mechanisms underlying these effects are often unclear. Additionally, plant genetic effects have largely been quantified in common gardens, thus inflating the estimates of their
Fitness costs of butterfly oviposition on a lethal non-native plant in a mixed native and non-native plant community
Dose-dependent effects of nectar alkaloids in a montane plant-pollinator community
SummaryAlthough secondary metabolites are prevalent in floral nectar, the ecological consequences for pollinators and pollination remain relatively unexplored. While often deterrent to pollinators at high concentrations, secondary metabolite concentrations in nectar tend to be much lower than second
Attracting pollinators and avoiding herbivores: insects influence plant traits within and across years
It is found that plant traits had little effect on damage and pollination, but damage andpollination affected plant traits in both the treatment year and the subsequent year, and evidence of indirect effects between leaf herbivores and pollinators in both directions has not been previously demonstra
Effects of bacterial endophytes on plant-insect interactions
Insects must interact with bacterial endophytes when sharing a common host. To test the hypothesis that larvae of Scaptomyza nigrita detects and prefers Cardamine cordifolia infected with different strains of Pseudomonas bacteria. Thus, unitizing the JA/SA induced antagonism. When given the choice b
Effects of floral diversity and density on fly (<i>Diptera:Bombyliidae and Syrphidae</i>) floral foraging fidelity in subalpine meadows
Foraging behavior of pollinators is an extensively researched topic. Research on bee, butterfly, and hummingbird foraging behavior has led to a greater understanding of the impacts of plant community composition on foraging behavior. This research has been further enhanced by fly foraging behavior a
Assessing the impacts of long-term pan trapping on native bee populations in sub-alpine ecosystems
Pollination by native bees is an essential ecosystem service in both natural and agricultural systems. During the last several decades, there have been reported declines in native bee populations worldwide. Due to recent declines, there is an increasing need for standardized population monitoring pr
Understanding the importance of coniferous understory versus open meadows for bees in times of drought
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
Local geographic distributions of bumble bees near Crested Butte, Colorado: Competition and community structure revisited
Surveys in 1974 of bumble bee species distributions along elevational gradients (Pyke 1982) were revisited to reevaluate the original conclusion that coexistence of bumble bee species can be ascribed to niche differentiation, primarily on the basis of proboscis lengths and the associated corolla len
Sequence variation in <i>couch potato</i> gene and its effects on life-history traits in a northern malt fly, <i>Drosophila montana </i>
The effect of ants on the population dynamics of a protective symbiont of aphids, <i>Hamiltonella defensa</i>
Abstract Mutualists that provide redundant services to the same organism have been shown both to coexist and compete for access to the partner. Aphids, for example, are known to receive protection against natural enemies from both heritable bacterial symbionts as well as ants, which tend aphids in e
A single climate driver has direct and indirect effects on insect population dynamics
Carol L. Boggs1,2* and David W. Weather drives population dynamics directly, through effects on vital rates, or indirectly, through effects on the Inouye1,3 populationÕs competitors, predators or prey and thence on vital rates. Indirect effects may include non-additive 1 Rocky Mountain Biological in
Responses of soil and water chemistry to mountain pine beetle induced tree mortality in Grand County, Colorado, USA
The effect of ants on the population dynamics of <i>Hamiltonella defensa</i> a protective symbiont of aphids
Frenemies: conflict and cooperation in burying beetle (<i>Nicrophorus investigator</i>) parental care
Conflict and cooperation can drive how unrelated individuals interact, while illustrating whether the interests of two individuals converge or diverge. The subsocial, biparental beetle Nicrophorus investigator provides an excellent model to study these two interactions because researchers can manipu
