University of Illinois Urbana-Champaign

Effect of Competition for Pollination on the Ecology and Evolution of a Hummingbird -Pollinated Plant, Ipomopsis Aggregata

Caruso, Christina Marie

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Description

Title
Effect of Competition for Pollination on the Ecology and Evolution of a Hummingbird -Pollinated Plant, Ipomopsis Aggregata
Author(s)
Caruso, Christina Marie
Issue Date
1999
Doctoral Committee Chair(s)
Jeffrey D. Brown
Department of Study
Biology
Discipline
Biology
Degree Granting Institution
University of Illinois at Urbana-Champaign
Degree Name
Ph.D.
Degree Level
Dissertation
Keyword(s)
Biology, Botany
Language
eng
Abstract
I then measured the effect of the density of neighboring conspecifics and competitors on pollination, reproduction, and selection on floral traits of I. aggregata in artificial arrays and natural populations. If competition in pollination selects for divergence in floral traits, and the strength of competition is density-dependent, then selection on these traits should be influenced by the density of conspecifics and competitors. However, the density and interspersion of plant species had weak and inconsistent effects on pollination, reproduction, and selection on floral traits of I. aggregata. These results suggest that the strength of competition for pollination in the I. aggregata-C. linariaefoblia system may instead be influenced by variation in these species' abundances at larger spatial scales that were examined in this study.
Graduation Semester
1999
Type of Resource
text
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http://hdl.handle.net/2142/85404

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