Related Content
Search Google Scholar for:
More Information
Related Jobs from ScienceCareers
|
|
Science 3 July 1998:
Vol. 281. no. 5373, pp. 103 - 105
DOI: 10.1126/science.281.5373.103
|
|
Reports
Reproductive Dominance of Pasture Trees in a Fragmented Tropical Forest Mosaic
Preston R. Aldrich,
*
J. L. Hamrick
Tropical forest fragmentation threatens biodiversity, yet basic
information on population responses for major groups such as plants is
lacking. Hypervariable genetic markers were used to reconstruct a
population-level pedigree in fragmented tropical forest for the tree
Symphonia globulifera. Though seedlings occurred only in
remnant forest, the pedigree showed that most seedlings had been
produced by sequentially fewer adults in pasture, creating a genetic
bottleneck. The pedigree also implicated shifts in the foraging of
animals that disperse pollen and seed in a secondary constriction of
the bottleneck. These results suggest that tropical conservation
strategies should anticipate complex, cryptic responses to
fragmentation.
P. R. Aldrich, Botany Department, University of Georgia,
Athens, GA 30602, USA. J. L. Hamrick, Botany and Genetics
Departments, University of Georgia, Athens, GA 30602, USA.
*
Present address: Department of Botany, MRC-166, National Museum of
Natural History, Smithsonian Institution, Washington, DC 20560, USA.
To whom correspondence should be addressed. E-mail:
aldrich.preston{at}nmnh.si.edu
Read the Full Text
THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES:
- Spatial Genetic Structure of the Southeastern North American Endemic, Ceratiola ericoides (Empetraceae).
- D. W. Trapnell, J. P. Schmidt, and J. L. Hamrick (2008)
J. Hered.
| Abstract »
| Full Text »
| PDF »
- Population Genetic Effects of Urban Habitat Fragmentation in the Perennial Herb Viola pubescens (Violaceae) using ISSR Markers.
- T. M. Culley, S. J. Sbita, and A. Wick (2007)
Ann. Bot.
100, 91-100
| Abstract »
| Full Text »
| PDF »
- Hierarchical patterns of paternity within crowns of Albizia julibrissin (Fabaceae).
- E. A. Pardini and J. L. Hamrick (2007)
Am. J. Botany
94, 111-118
| Abstract »
| Full Text »
| PDF »
- A Case Study: Looking at the Effects of Fragmentation on Genetic Structure in Different Life History Stages of Old-Growth Mountain Hemlock (Tsuga mertensiana).
- D. Ally and K. Ritland (2007)
J. Hered.
98, 73-78
| Abstract »
| Full Text »
| PDF »
- Effective Seed Dispersal Across a Fragmented Landscape.
- C. F. E. Bacles, A. J. Lowe, and R. A. Ennos (2006)
Science
311, 628
| Abstract »
| Full Text »
| PDF »
- Genetic Consequences of Tropical Second-Growth Forest Regeneration.
- U. U. Sezen, R. L. Chazdon, and K. E. Holsinger (2005)
Science
307, 891
| Abstract »
| Full Text »
| PDF »
- Limited hybridization between Quercus lobata and Quercus douglasii (Fagaceae) in a mixed stand in central coastal California.
- K. J. Craft, M. V. Ashley, and W. D. Koenig (2002)
Am. J. Botany
89, 1792-1798
| Abstract »
| Full Text »
| PDF »
- Breeding Population Size of a Fragmented Population of a Costa Rican Dry Forest Tree Species.
- V. J. Apsit, J. L. Hamrick, and J. D. Nason (2001)
J. Hered.
92, 415-420
| Abstract »
| Full Text »
| PDF »
- Reproductive biology of the dry forest tree Enterolobium cyclocarpum (guanacaste) in Costa Rica: a comparison between trees left in pastures and trees in continuous forest.
- O. J. Rocha and G. Aguilar (2001)
Am. J. Botany
88, 1607-1614
| Abstract »
| Full Text »
- Increased pollen flow counteracts fragmentation in a tropical dry forest: An example from Swietenia humilis Zuccarini.
- G. M. White, D. H. Boshier, and W. Powell (2002)
PNAS
99, 2038-2042
| Abstract »
| Full Text »
| PDF »
|
|
