2,139 results — topic: RMBL & Gothic
Occurrence Download
A dataset containing 905116 species occurrences available in GBIF matching the query: { "and" : [ "BasisOfRecord is Specimen", { "or" : [ "DatasetKey is The New York Botanical Garden Herbarium (NY)", "DatasetKey is University of New Mexico Herbarium", "DatasetKey is University of Colorado Museum of
Occurrence Download
A dataset containing 10742 species occurrences available in GBIF matching the query: { "DatasetKey" : [ "is Rocky Mountain Biological Laboratory" ] } The dataset includes 10742 records from 1 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0101451-220831081235567/datasets/expor
The Rocky Mountain Biological Laboratory
Phenology of glucosinolate concentrations in roots, stems and leaves of Cardamine cordifola
Herbivore effect on stature, fruiting and leaf dynamics of a native crucifer
The impact of a native, leaf—feeding chrysomelid beetle (Phaedon sp. nr. oviformis) on bittercress (Cardamine cordifolia: Cruciferae), was evaluated in an exclusion experiment. Multivariate statistical analysis showed a significant increase in plant performance in the rotenone exclusion compared to
Mechanistic constraints and optimality models: thermoregulatory strategies in Colias butterflies
To explore mechanistic constraints on the evolution of optimal phenotypes, we develop an optimality model for thermoregulation in Colias butterflies. The model identifies the thermoregulatory characteristics of butterflies that maximize time available for flight activity subject to an overheating co
Colias alexandra: a model for the study of natural populations of butterflies
The ant and the sunflower
Population structure and recommendations for conservation of the narrowly endemic alpine butterfly Boloria acrocnema (Lepidoptera: Nymphalidae)
Mark-recapture data indicate that daily population sizes are low, most adults remain in residence at the colony only a few days, and there are age-specific sexual differences in movement, with older females perhaps leaving the colony site.
The effects of capturing and marking on subsequent activity in <i>Boloria acrocnema</i> (Lepidoptera: Nymphalidae), with a comparison of different numerical models that estimate population size
Foraging patterns of yellow-bellied marmots: role of kinship and individual variability
Plasma melatonin rhythms in euthermic marmots (<i>Marmota flaviventris</i>)
Plasma melatonin concentrations in hibernating marmots: absence of a plasma melatonin rhythm
Plasma melatonin concentrations were measured throughout bouts of hibernation in marmots maintained in a short photoperiod (light-dark 8:16) and ambient temperature of 5 or 15 degrees C. Melatonin concentration was also measured in two animals maintained in constant darkness. As an animal entered hi
Some observations on spatial distribution in a montane population of Euphydryas editha
Counts of montane Euphydryas editha along transects at Almont Summit, Colorado, show that males form a dense aggregation along a ridgetop with an estimated 30:1 (male:female) sex ratio. Fertilized females showed preference for subsites below the ridgetop at least as rich in oviposition plants but le
The effect of plant density on departure decisions: testing the marginal value theorem using bumblebees and Delphinium nelsonii
Bombus flavifrons utiliserait la densite de la plante butinee pour estimer le cout eventuel d'approvisionnement
Migration and population dynamics of hummingbirds
Infanticide in yellow-bellied marmots
The size composition of invertebrate drift in a Rocky Mountain stream
Drift collections from a Rocky Mountain stream were used to examine the hypothesis that, because risk of predation by fish is greatest for large individuals during the day, aquatic insects should become increasingly nocturnal in their drift periodicity as they grow in size. Seven taxa common in the