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.

If You Use a Screen Reader

This content is available through Read Online (Free) program, which relies on page scans. Since scans are not currently available to screen readers, please contact JSTOR User Support for access. We'll provide a PDF copy for your screen reader.

Reproductive Biology of the Endangered Plant Clematis socialis (Ranunculaceae)

Margaret Timmerman-Erskine and Robert S. Boyd
The Journal of the Torrey Botanical Society
Vol. 126, No. 2 (Apr. - Jun., 1999), pp. 107-116
Published by: Torrey Botanical Society
DOI: 10.2307/2997286
Stable URL: http://www.jstor.org/stable/2997286
Page Count: 10
  • Read Online (Free)
  • Download ($10.00)
  • Subscribe ($19.50)
  • Cite this Item
Since scans are not currently available to screen readers, please contact JSTOR User Support for access. We'll provide a PDF copy for your screen reader.
Reproductive Biology of the Endangered Plant Clematis socialis (Ranunculaceae)
Preview not available

Abstract

Information on factors limiting reproduction in rare plants can aid formulation of management practices This study provided basic information about the reproductive biology of Clematis socialis Experiments determined the roles of pollination limitation, herbivory, predation of fruits (achenes), and resource availability in sexual reproduction. Hand pollination increased the frequency of acheneset, indicating that pollination frequency limited reproduction Treating plants with insecticide enhanced production of viable achenes, but resource modification treatments (addition of fertilizer, addition of water, clearing nearby herbaceous plants) did not significantly affect achene production A negative association was found between light levels and flower bud abortion, implying that low light levels increased bud abortion and limited reproductive success. Postmaturation achene predation by mice (Peromyscus sp) was intense Mice destroyed 30% of achenes placed in the field during a 1 wk period We concluded that sexual reproduction in C. socialis was limited by a combination of pollinator abundance, herbivory, low light levels, and post-maturation achene predation

Page Thumbnails

  • Thumbnail: Page 
107
    107
  • Thumbnail: Page 
108
    108
  • Thumbnail: Page 
109
    109
  • Thumbnail: Page 
110
    110
  • Thumbnail: Page 
111
    111
  • Thumbnail: Page 
112
    112
  • Thumbnail: Page 
113
    113
  • Thumbnail: Page 
114
    114
  • Thumbnail: Page 
115
    115
  • Thumbnail: Page 
116
    116