Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Migratory Birds Help Spread Plant Species: UConn Study

17.06.2014

This time of year, many in the country are watching warily as pollen floats far and wide on the wind, enabling plants to reproduce but also causing sneezes and watery eyes.

But a new study out of the University of Connecticut demonstrates for the first time how some plants travel not just across the backyard, but as far as from Northern to Southern hemispheres on the wings of migratory birds.


Each year, 500,000 American golden plovers fly between Arctic North America and South America. These birds may carry hundreds of thousands of microscopic plant parts, called diaspores, in their feathers. (Photo by Jean-François Lamarre)

The findings, published in the online journal PeerJ, offer critical insight into the ecology and evolution of plants that are represented across both continents of the Americas.

Led by Lily Lewis, a Ph.D. student in the Department of Ecology and Evolutionary Biology, the study found 23 regenerative plant diaspores – plant seeds or spores – trapped in the feathers of migratory birds leaving the Arctic harbor for South America.

... more about:
»Biology »Birds »Plant »breast »seeds »tropics

“Scientists have always assumed that birds might be responsible for dispersing the seeds,” says Emily Behling ’15 (CLAS), a UConn undergraduate who contributed to the study. “But this bugged Lily. She wanted to know what was really going on.”

Although wind is the primary means for long-distance dispersal of diaspores around the world, it is an unlikely candidate for explaining distribution between the hemispheres. Yet previous evidence of birds dispersing plant seeds or spores across the tropics had been only circumstantial.

The researchers studied American golden plovers, semipalmated sandpipers, and red phalaropes – all birds that breed in coastal tundra. Many of the plant parts found in their feathers belonged to mosses, which are especially hardy plants and often need only one dispersal event to establish in a new place, says Lewis.

The behavior of these migrant birds in their northern breeding grounds likely promotes their inadvertent acquisition of diaspores, according to the study. Shallow nests are constructed by scraping depressions into the ground with breast, feet, and beaks, and are commonly lined with plant materials.

The timing of molt and migratory behavior also increases the likelihood of attached diaspores being dispersed across the birds’ migratory range.

The post-migratory molt and terrestrial destinations of American golden plovers and semipalmated sandpipers are compatible with the requirements for dispersal across the equator. The majority of migratory shorebirds with non-breeding grounds in the Southern Hemisphere provide similar opportunities for diaspore dispersal, with the molt typically occurring on the southern non-breeding grounds.

Funding for the research came from University of Connecticut Katie Bu Memorial Fund, a Switzer Environmental Fellowship awarded to Lewis, and the National Science Foundation.

This summer, Behling will present the study findings at the national Evolution 2014 conference in North Carolina.

Behling also plans to continue the research by examining the DNA of the plant particles found in the feathers to learn more about the plants that are being dispersed by the migratory birds.

Colin Poitras | Eurek Alert!
Further information:
http://today.uconn.edu/blog/2014/06/migratory-birds-help-spread-plant-species-uconn-study/

Further reports about: Biology Birds Plant breast seeds tropics

More articles from Studies and Analyses:

nachricht The Great Unknown: Risk-Taking Behavior in Adolescents
19.01.2017 | Max-Planck-Institut für Bildungsforschung

nachricht A sudden drop in outdoor temperature increases the risk of respiratory infections
11.01.2017 | University of Gothenburg

All articles from Studies and Analyses >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Traffic jam in empty space

New success for Konstanz physicists in studying the quantum vacuum

An important step towards a completely new experimental access to quantum physics has been made at University of Konstanz. The team of scientists headed by...

Im Focus: How gut bacteria can make us ill

HZI researchers decipher infection mechanisms of Yersinia and immune responses of the host

Yersiniae cause severe intestinal infections. Studies using Yersinia pseudotuberculosis as a model organism aim to elucidate the infection mechanisms of these...

Im Focus: Interfacial Superconductivity: Magnetic and superconducting order revealed simultaneously

Researchers from the University of Hamburg in Germany, in collaboration with colleagues from the University of Aarhus in Denmark, have synthesized a new superconducting material by growing a few layers of an antiferromagnetic transition-metal chalcogenide on a bismuth-based topological insulator, both being non-superconducting materials.

While superconductivity and magnetism are generally believed to be mutually exclusive, surprisingly, in this new material, superconducting correlations...

Im Focus: Studying fundamental particles in materials

Laser-driving of semimetals allows creating novel quasiparticle states within condensed matter systems and switching between different states on ultrafast time scales

Studying properties of fundamental particles in condensed matter systems is a promising approach to quantum field theory. Quasiparticles offer the opportunity...

Im Focus: Designing Architecture with Solar Building Envelopes

Among the general public, solar thermal energy is currently associated with dark blue, rectangular collectors on building roofs. Technologies are needed for aesthetically high quality architecture which offer the architect more room for manoeuvre when it comes to low- and plus-energy buildings. With the “ArKol” project, researchers at Fraunhofer ISE together with partners are currently developing two façade collectors for solar thermal energy generation, which permit a high degree of design flexibility: a strip collector for opaque façade sections and a solar thermal blind for transparent sections. The current state of the two developments will be presented at the BAU 2017 trade fair.

As part of the “ArKol – development of architecturally highly integrated façade collectors with heat pipes” project, Fraunhofer ISE together with its partners...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

Sustainable Water use in Agriculture in Eastern Europe and Central Asia

19.01.2017 | Event News

12V, 48V, high-voltage – trends in E/E automotive architecture

10.01.2017 | Event News

2nd Conference on Non-Textual Information on 10 and 11 May 2017 in Hannover

09.01.2017 | Event News

 
Latest News

Helmholtz International Fellow Award for Sarah Amalia Teichmann

20.01.2017 | Awards Funding

An innovative high-performance material: biofibers made from green lacewing silk

20.01.2017 | Materials Sciences

Ion treatments for cardiac arrhythmia — Non-invasive alternative to catheter-based surgery

20.01.2017 | Life Sciences

VideoLinks
B2B-VideoLinks
More VideoLinks >>>