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:8/6/2015)... Calif. , Aug. 6, 2015  Today, ... will visit Crossmatch ™ to learn firsthand ... and protect data. Crossmatch is a world leader ... technologies and expertise are helping federal agencies and ... and security.   "The vast majority ...
(Date:8/5/2015)... , Aug. 5, 2015 The biosensors market ... in applications, penetration into newer sectors, and development of ... global biosensors space has seen the entry of multiple ... so far. (Photo - http://photos.prnewswire.com/prnh/20150805/255570 ) ... Analysis of the Global Biosensors Market ( ...
(Date:7/31/2015)... de julio de 2015 BGI llevará a cabo ... del 22 al 25 de octubre de 2015, en ... conferencia celebra su décimo aniversario este año. Desde su ... de las reuniones anuales más influyentes del mundo en ... las conferencias científicas más dinámicas, entusiastas y amenas. ...
Breaking Biology News(10 mins):Rep. Honda to Visit Crossmatch in Redwood City 2Innovative Biosensors Incite Use in Non-Traditional Applications 2Innovative Biosensors Incite Use in Non-Traditional Applications 3Innovative Biosensors Incite Use in Non-Traditional Applications 4La 10ª Conferencia Internacional sobre Genómica (ICG-10) comienza en octubre 2La 10ª Conferencia Internacional sobre Genómica (ICG-10) comienza en octubre 3
... protect nerves are the likely origin of the Devil Facial ... population, an international team of scientists has discovered. ... affects only Tasmanian devils and was first reported in 1996. ... The disease is characterised by large tumours, mostly on the ...
... FL Scientists from The Scripps Research Institute have ... infectious protein devoid of DNA or RNA that can ... The study from Scripps Florida in Jupiter ... at the protein level and, through natural selection, these ...
... in the remains of long-dead plants, animals, or humans allows ... studies of this kind on ancestral members of our own ... ancient DNA from modern-day human DNA contamination. Now, research by ... Leipzig, published online on December 31st in Current Biology ...
Cached Biology News:Nervous culprit found for Tassie devil facial tumor disease 2Scripps Florida scientists show 'lifeless' prions capable of evolutionary change and adaptation 2Scripps Florida scientists show 'lifeless' prions capable of evolutionary change and adaptation 3Scripps Florida scientists show 'lifeless' prions capable of evolutionary change and adaptation 4Using modern sequencing techniques to study ancient modern humans 2
(Date:8/31/2015)... , Aug. 31, 2015 Research and Markets ... "Mexico Biomedical Sensors Market - Growth, Trends & ... The Mexico Biomedical Sensors market is estimated ... 2.68% over the period 2014-2020 The near ... the genetic formulation of each individual. These sensors can ...
(Date:8/31/2015)... Mass. , Aug. 31, 2015  RXi ... company focused on discovering and developing innovative therapies ... today announced that the 30-day review period following ... (IND) for ocular indications with the U.S. Food ... IND is now active. Logo ...
(Date:8/31/2015)... 31, 2015 Trimb Healthcare AB ("Trimb") today ... YouMedical Group BV ("YouMedical"), a Dutch OTC company with ... sales of approximately EUR 16 million, with solid growth ... "Our ambition is to build a leading international OTC ... that goal. YouMedical gives us a stronger North European ...
(Date:8/30/2015)... England , August 31, 2015 ...   einer Frau   für chirurgische   Behandlung     ... von 7-90   werden für eine   verheerende ... 1200 Frauen behandeln und die Anzahl ausgebildeter Chirurgen in ... Astellas gab heute bekannt, dass  Action on Fistula ...
Breaking Biology Technology:Mexico Biomedical Sensors Market Report 2015-2020 2RXi Pharmaceuticals Announces Advancements in its Ophthalmology Clinical Program with RXI-109 2RXi Pharmaceuticals Announces Advancements in its Ophthalmology Clinical Program with RXI-109 3RXi Pharmaceuticals Announces Advancements in its Ophthalmology Clinical Program with RXI-109 4Über 550 Frauen, deren Leben durch "Action on Fistula" transformiert wurde 2Über 550 Frauen, deren Leben durch "Action on Fistula" transformiert wurde 3Über 550 Frauen, deren Leben durch "Action on Fistula" transformiert wurde 4Über 550 Frauen, deren Leben durch "Action on Fistula" transformiert wurde 5
... CALGARY, Nov. 29 /PRNewswire-FirstCall/ - Oncolytics Biotech ... Coffey, Chief,Scientific Officer of Oncolytics, is scheduled ... 2007 entitled "Large Scale Production Process for,the ... Informa Life,Sciences, 3rd Annual Vaccine Production Conference ...
... properties of a commonly used blue dye could revolutionise ... Advanced Materials. , Scientists have demonstrated that they can ... Phthalocyanine, or MPc, with the use of magnetism. ... researchers claim that the ability to control the magnetic ...
... Calif., Nov. 28 Bionovo, Inc.,(Nasdaq: BNVI ), a ... in the areas of women,s health and cancer, is scheduled ... Conference., The presentation by Tom Chesterman, SVP and CFO ... at 1:30 p.m. local time at the,Millennium Broadway Hotel in ...
Cached Biology Technology:Oncolytics Biotech Inc. to Present at Annual Vaccine Production Conference 2Blue dye could hold the key to super processing power 2Blue dye could hold the key to super processing power 3
... Timp-4 has been reported in heart ... fibroblasts in cell culture conditions. ... TPA stimulates production of TIMP-4 in ... protein levels produced often require concentration ...
Goat polyclonal to HSPC150 ( Abpromise for all tested applications). entrezGeneID: 29089...
Anti-MMP-13 Collagenase-3, amino terminal end of active enzyme; rabbit host...
...
Biology Products: