Related Experiment Video
Updated: Mar 6, 2026

Field Experiments of Pollination Ecology: The Case of Lycoris sanguinea var. sanguinea
Published on: November 25, 2016
Intrapopulation variation in nectar secretion in Impatiens capensis
1Department of Zoology, University of Vermont, 05405, Burlington, VT, USA.
Abstract:
Variation in nectar secretion rates within a population of Impatiens capensis was examined. There was no evidence for phenotypic variation between plants in nectar secretion rates. There was significant daily variation in secretion rates, which appeared to be caused by environmental factors. Individual flowers showed variable rates of secretion over consecutive hours, and these fluctuations in secretion occurred independently among the many flowers on any single plant. Time of day, plant size, and flower age (as indicated by sexual phase) showed no relationship to nectar secretion rates.
More Related Videos
Related Concept Videos
Pollination and Flower Structure
Testing a Claim about Mean: Unknown Population SD
Estimating a population mean requires the samples to be approximately normally distributed. The data should be collected from the randomly selected samples having no sampling bias. There is no specific requirement for sample size. But if the sample size is less than 30, and we don't know the population standard deviation, a different approach is used;...
Epiphytes, Parasites, and Carnivores

