598 results — topic: Insect Ecology
data for functional group analyses
data of vouchered bees to test for differences between repeatedly sampled sites and single sample sites regarding abundance functional group composition. The four functional groups tested were diet (lecty), sociality, body size (size), and nesting substrate (nesting). Note that sociality was tested
Ready for NMDS VOUCHERED BEES ONLY
sample day by species matrix ready for NMDS analysis.
Foraging behavior in <i>Bombus</i> spp
Skewed flowering distributions and bumblebees
Population structure of pierid butterflies. III. Pest populations of Colias philodice eriphyle
Competition for bumblebee pollinators in Rocky Mountain plant communities
Meadoew plant communities at four sites in the Colorado Rocky Mountains were studied to evaluate the influence of competition for bumblebee pollinators. The niche relationships among plant species were characterized by overlap with respect to species of bumblebee visitors and times of flowering. Spe
Metabolic resource allocation vs. mating attractions: adaptive pressure on the "alba" polymorphism of Colias butterflies
Colorado checkerspot butterflies: isolation, neutrality, and the biospecies
Colorado Euphydryas editha populations completely isolated from well-studied West Coast populations for at least 7,000 generations show strong phenetic and, at seven of eight loci, genetic resemblance to them. The patterns of allozyme variation are not compatible with the hypothesis that the observe
Winter Survival of Culex Tarsalis (Diptera: Culicidae) Hibernating in Mine Tunnels in Boulder County, Colorado, USA
Journal Article Winter Survival of Culex Tarsalis (Diptera: Culicidae) Hibernating in Mine Tunnels in Boulder County, Colorado, USA Get access Carl J. Mitchell Carl J. Mitchell 1Vector-Borne Diseases Division, Bureau of Laboratories, Center for Disease Control, Public Health Service, U.S. Department
Population structure of pierid butterflies. II. A "native" population of <i>Colias philodice eriphyle</i> in Colorado
The role of chemotactile stimuli in the oviposition preferences of Colias butterflies
It is stressed that chemotactile cues are involved only in the final step of oviposition, and that understanding foodplant choice in nature will require in-depth investigation into the mechanics of individual search processes.
The ecology and population genetics of an alpine checkerspot butterfly, <i>Euphydryas anicia</i>
Patterns of corolla tube length of bumblebee flowers from two continents
Reproductive strategies in the butterflies. I. Mating frequency, plugging, and egg number
Population structure of pierid butterflies. I. Numbers and movements of some montane <i>Colias</i> species
Adaptation at specific loci. I. Natural selection on phosphoglucose isomerase of Colias butterflies: biochemical and population aspects
ABSTRACT Electrophoretic variants of phosphoglucose isomerase (PGI) in Colias butterflies have been studied from field and laboratory viewpoints. The transmission pattern is that of a dimeric enzyme controlled by one structural gene locus. Populations usually harbor four to six allelic mobility clas
Coevolution of pierid butterflies and their cruciferous foodplants. II. The distribution of eggs on potential foodplants
The extreme specificity