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:2/5/2015)... 26, 2015   Epic Sciences , a precision diagnostics ... that Murali Prahalad , Ph.D., president and CEO, is ... (PMWC) 2015: Silicon Valley, which is taking place at ... on January 26-28, 2015. Dr. ... as Biomarkers." Last year, Epic Sciences was a finalist in ...
(Date:2/5/2015)... IRVINE, Calif. , Jan. 27, 2015 ... trusted provider of globally deployed, innovative test ... today announced the delivery of its ... Martin Space Systems Company (LMSSC). GENASYS is ... the demands of mission-critical applications that require ...
(Date:2/5/2015)... , Jan. 28, 2015 NXT-ID, Inc. (NASDAQ: ... "Company"), a biometric authentication company focused on the growing ... upcoming RedChip Global Online CEO Conference on January 29 ... Gino Pereira , CEO of NXT-ID will present ... product, the Wocket smart wallet and its full suite ...
Breaking Biology News(10 mins):Epic Sciences to Present at Personalized Medicine World Conference 2015 on the Use of Circulating Tumor Cells as Cancer Biomarkers 2Marvin Test Solutions' GENASYS Platform Advances Mission-Critical Aerospace Production Test 2Marvin Test Solutions' GENASYS Platform Advances Mission-Critical Aerospace Production Test 3Marvin Test Solutions' GENASYS Platform Advances Mission-Critical Aerospace Production Test 4CEO of NXT-ID, Inc. to Discuss Company's Biometric Technologies at RedChip Online Conference January 29th 2CEO of NXT-ID, Inc. to Discuss Company's Biometric Technologies at RedChip Online Conference January 29th 3
(Date:3/5/2015)... TORONTO , March 5, 2015 /PRNewswire/ - Aptose ... developing new therapeutics and molecular diagnostics that target the ... G. Rice , Ph.D., Chairman, President and Chief Executive ... Conference on Tuesday, March 10 th at 9:30 ... Laguna Niguel, CA. Dr. Rice will provide ...
(Date:3/5/2015)... 05, 2015 The next implants made ... the CE mark (European) approval. The CE mark is ... Association (EFTA) and the European Union. Following the Class ... granted to implants supplied by the Turkey-based company Osimplant ... , Osimplant's Cervical Expandable Bladed HA PEEK Cage line ...
(Date:3/4/2015)... 2015  Brooklyn residents now have a new place ... and injuries. Nunzio Saulle , M.D., a board-certified ... his NJS Physical Medicine and Rehabilitation (PM&R) practice in ... 5, 2015. Health Plus Management, LLC is managing the ... 1178 Flatbush Avenue. This new PM&R practice will treat ...
(Date:3/4/2015)... CA. (PRWEB) March 04, 2015 ... headquartered in the San Francisco Bay Area, will exhibit ... (OCT) Israel Conference 2015 on March 25th and ... seeks to build relationships with Israeli life science companies ... clinical trials. The company’s services span all phases of ...
Breaking Biology Technology:Aptose Biosciences to Present at the 27th Annual ROTH Conference 2Aptose Biosciences to Present at the 27th Annual ROTH Conference 3Invibio’s PEEK-OPTIMA® HA Enhanced Gains Momentum: New Implant Receives European Approval 2Invibio’s PEEK-OPTIMA® HA Enhanced Gains Momentum: New Implant Receives European Approval 3NJS Physical Medicine & Rehabilitation Opening on Flatbush Avenue, Brooklyn, NY 2PRC Clinical to Present at Inaugural Outsourcing in Clinical Trials Israel Conference 2015 on March 25 and 26th in Tel Aviv 2PRC Clinical to Present at Inaugural Outsourcing in Clinical Trials Israel Conference 2015 on March 25 and 26th in Tel Aviv 3PRC Clinical to Present at Inaugural Outsourcing in Clinical Trials Israel Conference 2015 on March 25 and 26th in Tel Aviv 4
Cached News: