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Related Experiment Video

Updated: Jul 2, 2026

Field Experiments of Pollination Ecology: The Case of Lycoris sanguinea var. sanguinea

Field Experiments of Pollination Ecology: The Case of Lycoris sanguinea var. sanguinea

Published on: November 25, 2016

Predicting patterns of mating and potential hybridization from pollinator behavior.

Diane R Campbell¹, Nickolas M Waser, Gregory T Pederson

¹Department of Ecology and Evolutionary Biology, University of California, Irvine, California 92697, USA.

The American Naturalist

|August 19, 2008

Summary

Pollinator behavior, not just distance, significantly impacts plant hybridization. Hummingbird and insect visitation patterns, especially towards hybrids, drive pollen transfer and influence hybrid fitness.

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Area of Science:

Botany
Ecology
Evolutionary Biology

Background:

Hybridization in flowering plants is influenced by pollinator movement and pollen transfer effectiveness.
Pollinator behavior affects hybrid fitness through pollen receipt and export dynamics.

Purpose of the Study:

To model pollen transfer between Ipomopsis species and their hybrids.
To compare simulation predictions with experimental data on pollen movement.

Main Methods:

Developed a simulation model incorporating pollinator effectiveness and visitation behavior.
Used fluorescent dyes in experimental plant arrays to estimate pollen transfer.
Analyzed interspecific and conspecific pollen transfer patterns.

Main Results:

Interspecific pollen transfer was infrequent, but hybrid-to-parental species transfer was common.
Asymmetrical backcrossing occurred, with I. aggregata receiving mixed pollen loads.
Pollinator visitation sequences, not mechanical isolation, primarily explained pollen transfer patterns.

Conclusions:

Pollinator behavior is a key driver of hybridization patterns and hybrid fitness.
Natural variation in pollination can lead to spatiotemporal variation in hybridization.
Hybrid fitness is influenced by pollinator preference for hybrids versus parental species.