685 results — topic: Flowering & Pollination
<i>Castilleja</i> of the Gunnison Basin
Bumblebee pollinators of <i>Aconitum columbianum</i> and <i>Delphinium barbeyi</i>
Nectar resource use by <i>Colias</i> butterflies: chemical and visual aspects
Strategies of nesting in a high-altitude temperate hummingbird
Color variance among flowers in a mountain meadow
Nitrogenous compound content in the nectar of six common Rocky Mountain wildflowers
The white-lined sphinx moth (<i>Celerio lineata</i>) foraging
Hummingbird time-energy budget
Polymorphism in <i>Aquilegia caerula</i>
Hypothermia of broadtailed hummingbirds during incubation in nature with ecological correlations
The first continuous recordings of natural hypothermia, and the only evidences of hypothermia during incubation, were obtained from temperature sensors embedded in synthetic hummingbird eggs placed in the nests. Resorting to this energy-conserving process was infrequent and could be correlated with
The Timing of maternal behavior of the broad-tailed hummingbird preceding nest failure
Microhabitat selection during nesting of hummingbirds in the Rocky Mountains
The importance of nest location in reducing heat loss by radiation and convection is indicated by a preliminary examination of the nest sites of Broad—tailed and Calliope hummingbirds with regard to chilling nights in the Rocky Mountains. Radiation losses are estimated from surface temperatures. Nes
An estimate of the heat balance of a nesting hummingbird in a chilling climate
Air, nest and body surface temperatures, air velocity, and hemispherical radiation data were used with published values for evaporation and metabolism to estimate the total heat loss of the incubating female when air temperatures were 0–4·6°C.
Absolute Pollen Diagram of Redrock Lake, Boulder County, Colorado
Redrock Lake is situated at 3,095 m in the subalpine zone on the east flank of the Front Range, Boulder County, Colorado. The lake lies on Pinedale moraine, and it contains 170 cm of organic sediments that overlie 10 cm of silty clay. The oldest of seven 14C dates from the organic sediment is 9,490
The importance of color and form in insect pollination in the <i>Delphinium barbeyi</i> and <i>Acotinum columbianum</i>
Piracy of nesting materials from and by the broadtailed hummingbird
In the course of nesting microclimatic studies of the Broad-tailed Hummingbird (Selusphorus platycercus), I observed three cases of intra-or interspecific piracy of nesting materials. These observations were made in the vicinity of the Rocky Mountain Biological Laboratory, Gothic, Gunnison County, C