Access

You are not currently logged in.

Access your personal account or get JSTOR access through your library or other institution:

login

Log in to your personal account or through your institution.

Genetic Structure in a Population of a Tropical Tree Ocotea tenera (Lauraceae): Influence of Avian Seed Dispersal

J. Phil Gibson and Nathaniel T. Wheelwright
Oecologia
Vol. 103, No. 1 (1995), pp. 49-54
Published by: Springer in cooperation with International Association for Ecology
Stable URL: http://www.jstor.org/stable/4221000
Page Count: 6
  • Download ($43.95)
  • Cite this Item
Genetic Structure in a Population of a Tropical Tree Ocotea tenera (Lauraceae): Influence of Avian Seed Dispersal
Preview not available

Abstract

We studied the influence of avian seed dispersal on the structuring of genetic diversity in a population of a tropical tree, Ocotea tenera (Lauraceae). The seeds of O. tenera are principally dispersed by four, relatively specialized, fruit-eating bird species (emerald toucanets, keel-billed toucans, resplendent quetzals, and three-wattled bellbirds). We found high genetic diversity within the overall population and significant, nonrandom structuring of that diversity among subpopulations. Subpopulations contained members of several sibling groups, and most saplings within subpopulations were shown not to be the progeny of adult trees within the same subpopulation. Our data indicate that O. tenera subpopulations are founded with several seeds from few maternal families, and that this mode of establishment is an important determinant of population genetic architecture.

Page Thumbnails

  • Thumbnail: Page 
[49]
    [49]
  • Thumbnail: Page 
50
    50
  • Thumbnail: Page 
51
    51
  • Thumbnail: Page 
52
    52
  • Thumbnail: Page 
53
    53
  • Thumbnail: Page 
54
    54