HOME >> BIOLOGY >> NEWS
Songbirds escaped from Australasia, conquered rest of world

ut 40 million years ago," said Barker. "But we found that these birds fall into a group within the Corvida. That means all songbirds trace their origins to Australasia and New Guinea."

The Passerida differ from the Corvida because the Passerida somehow made it out of Australasia and New Guinea and onto the Asian mainland long before the Corvida, Barker said. Asia and Australasia are carried on separate plates in the Earth's crust, and for many millions of years those plates were far apart. Around 45 million years ago, the ancestors of the Passerida dispersed to Asia--over more than 600 miles of open ocean--long before these two plates approached one another. For some reason, however, ancestors of the Corvida didn't make it until about 25 million years later, or 20 million years before today. At that time, Asia and Australia were much closer to each other, and island chains that could have allowed the Corvida ancestors to "island hop" to the mainland appeared, Barker said.

"There are many endemic Corvida birds on the Indonesian island of Lombok but very few on Bali, the next island to the west," said Barker. "And, sure enough, the line separating the Asian plate from the Australasian plate runs between Bali and Lombok."


'"/>

Contact: Deane Morrison
morri029@umn.edu
612-624-2346
University of Minnesota
19-Jul-2004


Page: 1 2

Related biology news :

1. Songbirds use mental pointer when playing tunes
2. Melatonin Shapes Brain Structure In Songbirds
3. Fewer Songbirds May Be Result Of Forest Fragmentation Across The American South, New Study Suggests
4. Study Shows Songbirds Switch From Bugs To Berries To Fuel Fall Migration
5. Invading weeds escaped old enemies, brought immunity
6. DuPont scientist named one of the worlds top young innovators by MITs Technology Review Magazine
7. Health of worlds sea lions the focus of Wakefield Symposium
8. Laboratory grows world record length carbon nanotube
9. In a world of distortion, archer fish learn to judge absolute size of aerial prey
10. Improved nutrition could reduce malaria burden worldwide
11. Study shows how consensus is attained in a noisy world

Post Your Comments:
*Name:
*Comment:
*Email:


(Date:6/23/2017)... N.Y. , June 23, 2017  IBM (NYSE: ... dairy research, today announced a new collaboration using next-generation ... chances that the global milk supply is impacted by ... Cornell University has become the newest academic institution to ... a food safety initiative that includes IBM Research, Mars, ...
(Date:5/16/2017)... 2017   Bridge Patient Portal , an ... MD EMR Systems , an electronic medical record ... have established a partnership to build an interface ... GE Centricity™ products, including Centricity Practice Solution (CPS), ... These new integrations will allow healthcare delivery networks ...
(Date:4/18/2017)... a global expert in SoC-based imaging and computing solutions, has developed ... the company,s hybrid codec technology. A demonstration utilizing TeraFaces ® , ... showcased during the upcoming Medtec Japan at Tokyo Big Sight April ... Vegas Convention Center April 24-27. ... Click here for an image of the M820 ...
Breaking Biology News(10 mins):
(Date:10/10/2017)... , ... October 10, 2017 , ... ... of 13 prestigious awards honoring scientists who have made outstanding ... a scheduled symposium during Pittcon 2018, the world’s leading conference and exposition for ...
(Date:10/9/2017)... ... , ... At its national board meeting in North Carolina, ARCS® Foundation ... of Physics and Astronomy, has been selected for membership in ARCS Alumni Hall ... 2015 Breakthrough Prize in Fundamental physics for the discovery of the accelerating expansion of ...
(Date:10/7/2017)... ... October 06, 2017 , ... ... instruments and applications consulting for microscopy and surface analysis, Nanoscience Instruments is ... Nanoscience Analytical offers a broad range of contract analysis services for advanced ...
(Date:10/6/2017)... Boston, Mass. (PRWEB) , ... October 06, 2017 ... ... spotlight female entrepreneurship within the healthcare and technology sector at their fourth annual ... six panels featuring 30 inspiring speakers and the ELEVATE pitch competition showcasing early ...
Breaking Biology Technology:
Cached News: