HOME >> BIOLOGY >> NEWS
Mode of seed dispersal greatly shapes placement of rainforest trees

CAMBRIDGE, Mass., Nov. 28, 2006 -- The apple might not fall far from the tree, but new research shows that how it falls might be what is most important in determining tree distribution across a forest. This study of the seed dispersal methods of rainforest trees demonstrates that these methods play a primary role in the organization of plant species in tropical forests.

Joshua B. Plotkin, a junior fellow in the Faculty of Arts and Sciences at Harvard University, and co-author Tristram Seidler will publish their results in the November issue of the journal Public Library of Science Biology.

"Overall, there is a highly significant relationship between mode of seed dispersal and the clustering and arrangement of mature trees in the rainforest," says Plotkin. "This strong correlation demonstrates the long-term impact that these dispersal methods have on the organization of the large-scale forest."

In order to address the paradox of how so many rainforest species can coexist while competing for the same resources, Plotkin and Seidler studied a 50-hectare (500 meters by 1,000 meters) plot of lowland tropical forest at Pasoh Forest Reserve in peninsular Malaysia. They analyzed the dispersal mechanisms and spatial distributions of 561 tree species found in the plot. What they found was that species clustering was strongly correlated to the species' mode of seed dispersal.

Each species was categorized by one of five dispersal methods: ballistic (where seeds are liberated explosively), gravity, gyration (where the progression of seeds to the ground is slowed by the shape of the seeds), wind, and animal, the last of which was sub-categorized by fruit size. The animal subcategories were intended to distinguish among different sizes of animal that might disperse the fruit.

Plotkin and Seidler observed the distribution of individual tree species, determining an average spatial cluster size. Upon comparison across all species and s
'"/>

Contact: Steve Bradt
steve_bradt@harvard.edu
617-496-8070
Harvard University
28-Nov-2006


Page: 1 2

Related biology news :

1. Proteaceae spread by continental drift and transoceanic dispersal
2. Migratory birds: Innocent scapegoats for the dispersal of the H5N1 virus
3. Ancient global warming drove early primates dispersal
4. Mechanistic analytical models for long-distance seed dispersal by wind
5. Study finds colony size selection determines adult survival and dispersal preferences in kestrels
6. Landscape corridors promote animal, plant dispersal
7. Spatial structure, dispersal, and management of a recovering raptor population
8. Survival of heart patients on beta-blockers varies greatly with genetic variation
9. Low oxygen likely made Great Dying worse, greatly delayed recovery
10. NJIT professor says certain home shapes and roofs hold up best in hurricane
11. Drought sensitivity shapes species distribution patterns in tropical forests

Post Your Comments:
*Name:
*Comment:
*Email:
TAG: Mode seed dispersal greatly shapes placement rainforest trees

(Date:11/21/2014)... 2014 C-Labs LLC, a leading provider of ... (IoT), today announced the appointment of John Traynor ... a strategic advisor to the firm, Mr. Traynor will ... is based out of the C-Labs office in ... Chris Muench , Chief Executive Officer. Photo ...
(Date:11/18/2014)... 2014   EyeLock Inc. , a market ... MorphoTrust USA (Safran), a leading U.S. provider ... strategic partnership to offer comprehensive biometric identity solutions ... airport screening and financial services markets. ... consumers through a nationwide network of 1,100 IdentoGO® ...
(Date:11/7/2014)... associate professor, biomedical engineering, in the Grove School ... York, have identified a molecule that could lead ... aggressive forms of breast cancer. , Triple negative ... owing to aggressive proliferation and metastasis and a ... team, discovered the overexpression of intercellular adhesion molecule-1 ...
Breaking Biology News(10 mins):C-Labs Names Former Microsoft and Bsquare Executive as Chief Operating Officer 2EyeLock, MorphoTrust Form Strategic Partnership to Pursue Commercial Enterprise Deployments 2EyeLock, MorphoTrust Form Strategic Partnership to Pursue Commercial Enterprise Deployments 3
(Date:11/21/2014)... San Diego, CA (PRWEB) November 20, 2014 ... has extended their Sartorius Entris Balance promotion . ... for customers seeking a durable, high accuracy, and easy-to-maintain ... and made in Germany. It was designed to help ... is affordable and a balance that is very durable. ...
(Date:11/21/2014)... (PRWEB) November 20, 2014 The ... public policy research organization representing leading California academic ... and PwC US today released a ... life sciences industry growth. The trend shows a ... 2015 California Biomedical Industry Report indicates ...
(Date:11/21/2014)... (PRWEB) November 20, 2014 The November ... available as an open access journal featuring the following ... fluorescent proteins to preserve photoresponsiveness in the retina , ... fluorescent in situ hybridization using chromogenic substrates in zebrafish ... DNA, RNA, and protein electrophoresis , Nuclear ...
(Date:11/21/2014)... 21, 2014 Why did Stephen Hawking ... Einstein so instantly recognizable? Why have they become icons ... and author Hilton Ratcliffe seeks out the answers to ... all to do with science. In " Stephen Hawking ... November 21, 2014), Ratcliffe puts it plainly: , ...
Breaking Biology Technology:Pipette.com Announces an Extension on the Sartorius Entris Balance Promotion to the End of 2014 2California Healthcare Institute and PwC Report Boom in California’s Biomedical Industry 2California Healthcare Institute and PwC Report Boom in California’s Biomedical Industry 3California Healthcare Institute and PwC Report Boom in California’s Biomedical Industry 4BioTechniques: The International Journal of Life Science Methods Announces the Publication of the November 2014 Issue—Available in Print and Online 2BioTechniques: The International Journal of Life Science Methods Announces the Publication of the November 2014 Issue—Available in Print and Online 3“Stephen Hawking Smoked My Socks” Sparks Controversy in Science World 2“Stephen Hawking Smoked My Socks” Sparks Controversy in Science World 3“Stephen Hawking Smoked My Socks” Sparks Controversy in Science World 4
Cached News: