Pollen analogue (fluorescent dye) transfer by Valeriana edulis pollinators from dyed males to surrounding females. See README.txt for column descriptions.

Measurements of focal females, including proportion of flowers that successfully produced seed. See README.txt for column descriptions.

Characteristics of the pollination neighborhoods within a 10m radius of focal females. See README.txt for column descriptions.

Calibration dataset to measure and correct for individual observer effects on estimated numbers of flowers. See README.txt for column descriptions.

Foreign pollen precedence decreased mean seed set by almost 50%, which is consistent with effects observed in previous experiments and can be explained by the fact that foreign pollen often caused stigma lobes to close together within 1.5–6 h, reducing subsequent receptivity.

The balance of heat gain from sunlight versus heat loss from convection and radiation does not appear to change by more than a few percent between the wings-closed basking posture and the variable opening of wings in flight, although several aspects require further study.

(1) The transport of pollen from donor flowers by bumble bees was measured by examining deposition on stigmata of sequences of recipient flowers. The rate of decay of grain deposition was estimated as a measure of pollen carryover. (2) Bombus bifarius was a much less effective pollinator of Erythron

This study tests the hypothesis that selection should result in a positive correlation between numbers of oocytes produced and available oviposition time, in order to avoid wasting nutrients through the formation of unused oocytes in Colias philodice eriphyle Edwards.

Natural substrates in mesh cages in a Tompkins County, New York, woodland stream were colonized by benthic invertebrates for periods of 3, 6, 9, 12, 18, 24, 30, and 42 d during autumn 1980. An experiment was designed for the purpose of distinguishing seasonal phenology from site-specific temporal (n

In Frasera speciosa , a long‐lived monocarpic gentian from the Colorado Rocky Mountains, leaves are preformed two to three yr in advance of their appearance above ground. Initiation of a flower stalk may begin as long as three yr before it becomes fully developed during a plant's final year. Whorls

UP AND COMING RIDE: 88th and the Valley (east of Huron on 92nd) Grease up your machine...put on your fun duds...gather your family and come to the ride at **88th and the Valley on Sunday, May 22**. If you like games, prizes, competition and lots of fun you won't want to miss this one. Registration f

Russ Shay. Sierra Club. December 1977.

Authors: Ralph E Clark III, Maureen D Bailey, Helene C Monberg, John M Crewdson Organization: Denver Post Date: 1977

U.S. Department of Housing and Urban Development. 1977.