You are not currently logged in.
Access JSTOR through your library or other institution:
If You Use a Screen ReaderThis 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.
Demography of an Undergrowth Palm in Littoral Cameroon
Stephen H. Bullock
Vol. 12, No. 4 (Dec., 1980), pp. 247-255
Published by: Association for Tropical Biology and Conservation
Stable URL: http://www.jstor.org/stable/2387694
Page Count: 9
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.
Preview not available
This study of Podococcus barteri in Cameroon, equatorial West Africa, shows that the longevity of this small palm is in the range of 63-74 years. Seasonality is more pronounced in flowering than in leaf production. Adults produce one leaf per year, each lasting about five years in the crown. Proliferation by stolons begins many years before flowering. The leafy stolons may grow two-eight or more years before establishing the ramets. Inflorescence development, flowering, and seed maturation take about 1.4 years. Only 0.08 percent of the ovules become mature seeds. A stage projection matrix gives the annual population growth rate as 1.2 percent. The growth index λ is more sensitive to changes in mortality of juveniles and young adults than of seeds-seedlings, mature-old adults, or stolons. Mortality at several stages of sexual reproduction and the size advantage of ramets account for the greater importance of cloning to population dynamics, although the relative energetics have not been assessed.
Biotropica © 1980 Association for Tropical Biology and Conservation