Navigation Links
Toucans wearing GPS backpacks help Smithsonian scientists study seed dispersal
Date:7/28/2011

Nutmeg-loving toucans wearing GPS transmitters recently helped a team of scientists at the Smithsonian Tropical Research Institute in Panama address an age-old problem in plant ecology: accurately estimating seed dispersal. The tracking data revealed what scientists have long suspected: toucans are excellent seed dispersers, particularly in the morning. Also, for the first time, the data enabled researchers to create a map of the relative patterns and distances that toucans distribute the seeds of a nutmeg tree.

The reproductive success of any fruiting plant depends upon how effectively its seeds are dispersed, yet tracking and mapping individual seeds carried off by the wind or ingested by animals is nearly impossible. Today, ecologists studying forest dynamics rely mostly on theoretical models to calculate the area of seed distribution for specific plants. New tracking technology is changing that.

In the first stage of their experiment, the scientists collected fresh seeds from a common Panamanian nutmeg tree (Virola nobilis) and fed them to captive toucans (Ramphastos sulfuratus) at the Rotterdam Zoo. Toucans gulp nutmeg seeds whole, the outer pulp is processed in the bird's crop, and the hard inner seed is then regurgitated. Five zoo toucans fed 100 nutmeg seeds took an average of 25.5 minutes to process and regurgitate the seeds.

Next, in Panama, the scientists netted six wild toucans (four R. sulfuratus and two R. swainsonii) that were feeding from a large nutmeg tree in the rainforest at Gamboa. They fitted the birds with lightweight backpacks containing GPS tracking devices (these devices recorded the birds' exact location every 15 minutes) and accelerometers which can measure a bird's daily activity level.

When matched with the seed-regurgitation time of the zoo toucans, the GPS data indicated the wild toucans were probably dropping nutmeg seeds a distance of 472 feet, on average, from the
'/>"/>

Contact: Sonia Tejada
Tejadas@si.edu
Smithsonian
Source:Eurekalert  

Page: 1 2

Related biology news :

1. TECNALIA investigates advanced biomaterials to make more reliable and hardwearing medical implants
2. MIT creates tiny backpacks for cells
3. Smithsonian Libraries converts digital publications for e-readers
4. Smithsonian Conservation Biology Institute and George Mason University expand partnership
5. Significant litter of cheetah cubs born at Smithsonian Conservation Biology Institute
6. Smithsonian study: Stranding records are faithful reflection of live whale and dolphin populations
7. Smithsonian to help create frozen repository for the Great Barrier Reef
8. Smithsonian scientists report changes in vegetation determine how animals migrate
9. Smithsonian scientists help block ship-borne bioinvaders before they dock
10. Smithsonian scientists discover 7 new species of fish
11. Smithsonian reports regional sea temperature rise and coral bleaching event in Western Caribbean
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Toucans wearing GPS backpacks help Smithsonian scientists study seed dispersal
(Date:12/19/2014)... 2014   LaunchKey , the first decentralized mobile ... Internet of Things era, today announced the close of ... was led by Metamorphic Ventures with participation from ENIAC ... and others.  LaunchKey has raised $4 million to date, ... team and bring LaunchKey to market in 2015. ...
(Date:12/17/2014)... Valencell, a leader in performance biometric data ... industry leaders such as Intel, Jabra, Atlas, and Scosche ... products. These products will be showcased at CES 2015, ... . "Our partners choose PerformTek ... – with the clinical data to back it up," ...
(Date:12/11/2014)... , Dec. 09, 2014 Research and ... ( http://www.researchandmarkets.com/research/twhjll/biometrics_market ) has ... in the APAC Region 2015-2019"  report to their ... in this market is advances in technology. With ... upgrade biometric solutions to the latest standard that ...
Breaking Biology News(10 mins):LaunchKey Raises $3 Million in Additional Funding Led by Metamorphic Ventures 2LaunchKey Raises $3 Million in Additional Funding Led by Metamorphic Ventures 3Valencell PerformTek Biometrics Power the Most Accurate Wearables at CES 2015 2Biometrics Market in the APAC Region 2015-2019: Key Vendors are 3M Cogent, NEC, Safran and Suprema 2
... for our brains and memory. But what is it about ... our memory sharper? Medical researchers at the University of ... in the peer-reviewed journal Applied Physiology, Nutrition, and Metabolism ... lab models fed a high-DHA diet had 30 per cent ...
... introduced to the U.S. for sale through plant nurseries, ... Although legislation restricts the introduction of certain species, the ... restricted list are haphazard and out of date. ... risk analysis, researchers at the University of Georgia Odum ...
... lines for American Idol demonstrate anything, it,s that people like ... audience, the better. Now researchers at Tel Aviv University have ... indigenous to Africa and the Middle East. According ... TAU,s Department of Zoology, hyrax vocalizations or "songs" go a ...
Cached Biology News:Screening horticultural imports: New models assess plant risk through better analysis 2Screening horticultural imports: New models assess plant risk through better analysis 3Looking for the next American hyrax? 2Looking for the next American hyrax? 3Looking for the next American hyrax? 4
(Date:12/24/2014)... 2014 Pipette.com announces their Holiday ... can submit their #HolidayInTheLab pictures for a chance to ... , For those struggling to think of a holiday ... in the Lab Contest provides the ideal holiday presents. ... to send pictures of their chemistree, holiday sweaters, as ...
(Date:12/24/2014)... Dec. 23, 2014 Sigma-Aldrich Corporation (NASDAQ: ... waiting period under the Hart-Scott-Rodino Antitrust Improvements Act ... on December 22, 2014, thereby completing the U.S. ... the acquisition of the Company by Merck KGaA, ... satisfies another condition to closing the transaction, which ...
(Date:12/22/2014)... Dec. 22, 2014   Synthetic Biologics, ... of pathogen-specific therapies for serious infections and ... microbiome, today announced positive topline safety and ... trial of SYN-004, the Company,s investigational oral ... Clostridium difficile (C. difficile) infection, antibiotic-associated ...
(Date:12/22/2014)... , Dec. 22, 2014  ( www.competitivehealth.com ) — ... online medical bill review and advocacy service, has signed ... FREE WellCard Savings discount health services marketplace. ... was more than they expected to pay. As part ... care costs, WellCard Savings is pleased to offer medical ...
Breaking Biology Technology:Major Pipette Distributor Pipette.com Announces their Holiday in the Lab Contest 2Acquisition of Sigma-Aldrich by Merck KGaA, Darmstadt, Germany, Receives U.S. Antitrust Clearance 2Acquisition of Sigma-Aldrich by Merck KGaA, Darmstadt, Germany, Receives U.S. Antitrust Clearance 3Synthetic Biologics Announces Positive Topline Results from Phase 1a Trial of SYN-004 for the Prevention of C. difficile Infection 2Synthetic Biologics Announces Positive Topline Results from Phase 1a Trial of SYN-004 for the Prevention of C. difficile Infection 3Synthetic Biologics Announces Positive Topline Results from Phase 1a Trial of SYN-004 for the Prevention of C. difficile Infection 4Synthetic Biologics Announces Positive Topline Results from Phase 1a Trial of SYN-004 for the Prevention of C. difficile Infection 5WellCard Savings Announces CoPatient Medical Bill Review Service for Members 2
... 8 Arena Pharmaceuticals, Inc.,(Nasdaq: ARNA ) announced ... Bank of America 2008 Healthcare Conference on May 14, ... at the Four Seasons Hotel in Las,Vegas, Nevada. Dominic ... Officer, is scheduled to provide an overview of the,company, ...
... (NYSE: EW ), the world leader in the ... a number of cardiac surgery,milestones and product debuts at ... Surgery (AATS), May 10-14 in San Diego., Among ... celebrates,its 50th anniversary of partnering with clinicians to develop ...
... NEW YORK, May 8 Keryx Biopharmaceuticals,Inc. (Nasdaq: ... May 12, 2008 at,8:30 a.m. EDT to discuss the ... Chief Executive Officer of the Company, will host,the call. ... in a,press release to be issued prior to the ...
Cached Biology Technology:Arena Pharmaceuticals to Present at the Bank of America 2008 Healthcare Conference 2Arena Pharmaceuticals to Present at the Bank of America 2008 Healthcare Conference 3Edwards Lifesciences Celebrates One Million Heart Valve Patients and More at AATS 2008 2Edwards Lifesciences Celebrates One Million Heart Valve Patients and More at AATS 2008 3Edwards Lifesciences Celebrates One Million Heart Valve Patients and More at AATS 2008 4Keryx Biopharmaceuticals, Inc. to Hold Conference Call on First Quarter 2008 Financial Results on Monday, May 12, at 8:30 A.M. EDT 2
Kit for BASE20/50 dual control unit, includes mounting plate, HOLDER50T, HEATERPAD50, SRTDX temperature probe(s)....
...
... R&D Systems Cell and Tissue Staining Kits ... a broad range of histological and cytological ... primary IgG antibodies manufactured by either R&D ... is based on the formation of the ...
... jetSI-ENDO is an easy-to-use siRNA transfection reagent ... endogenous genes in a variety of cell ... with an optimized, straightforward protocol. High levels ... obtained following transfection of 20 to 100 ...
Biology Products: