Access

You are not currently logged in.

Access JSTOR through your library or other institution:

login

Log in 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.
Journal Article

Population Dynamics of Ceratozamia matudai Lundell (Zamiaceae) in El Triunfo Biosphere Reserve, Chiapas, Mexico

Miguel Angel Pérez Farrera, Pedro F. Quintana-Ascencio, Benito Salvatierra Izaba and Andrew P. Vovides
The Journal of the Torrey Botanical Society
Vol. 127, No. 4 (Oct. - Dec., 2000), pp. 291-299
Published by: Torrey Botanical Society
DOI: 10.2307/3088647
Stable URL: http://www.jstor.org/stable/3088647
Page Count: 9
Were these topics helpful?
See something inaccurate? Let us know!

Select the topics that are inaccurate.

  • Read Online (Free)
  • Download ($10.00)
  • Subscribe ($19.50)
  • Add to My Lists
  • 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.
Population Dynamics of Ceratozamia matudai Lundell (Zamiaceae) in El Triunfo Biosphere Reserve, Chiapas, Mexico
Preview not available

Abstract

We describe Ceratozamia matudai geographic distribution, its basic demographic parameters, and the association of these parameters with environmental factors. A species survey and a review of herbarium collections indicated that C. matudai occurs only on the pacific slopes of the Sierra Madre of Chiapas, México. Two censuses (1998-1999) were performed in a Pine-Cupressus forest in the core zone of the Triunfo Biosphere Reserve, and a Montane Rain Forest in its buffer zone. Neighboring floristic composition, soil depth, and slope around marked and mapped C. matudai individuals in each site were described. This species showed a clumped local distribution on shallow soils on steep slopes. Individuals showed differences in amount of leaf production, trunk diameter, and height between sites. Neighboring species composition affected seedling mortality. Because of its low numbers and limited range we recommend a status change in its IUCN category to endangered. As with other cycads, C. matudai can reach high market values. Ex-situ propagation of this and other species may provide incentives among local peasants for conservation of the natural populations and its habitat.

Page Thumbnails

  • Thumbnail: Page 
291
    291
  • Thumbnail: Page 
292
    292
  • Thumbnail: Page 
293
    293
  • Thumbnail: Page 
294
    294
  • Thumbnail: Page 
295
    295
  • Thumbnail: Page 
296
    296
  • Thumbnail: Page 
297
    297
  • Thumbnail: Page 
298
    298
  • Thumbnail: Page 
299
    299
Part of Sustainability