Navigation Links
Humans helped vultures colonize the Canary Islands
Date:12/12/2010

The Egyptian vulture population of the Canary Islands was established following the arrival of the first human settlers who brought livestock to the islands. A genetic comparison of Iberian and Canarian birds, published in the open access journal BMC Evolutionary Biology, found that the Egyptian vulture population in the Canary Islands was likely established around 2500 years ago around the same time as humans began to colonise the islands.

Rosa Agudo worked with a team of researchers from the Doana Biological Station, Seville, Spain, to investigate genetic and morphological changes between 143 Iberian birds and 242 from Fuerteventura, one of the Canary Islands. She said, "We found that the island vultures are significantly heavier and larger than those from Iberia. The establishment of this insular population took place some 2500 years ago, matching the date of human colonization. Our results suggest that human activity can trigger divergent evolution and that this process may take place on a relatively brief time scale".

The authors suggest that before the arrival of humans, the Canary Islands would not have been able to support vultures, as food resources would have been scarce, consisting only of the remains of seabirds and sea mammals, or of rodents. They say, "The introduction of new and abundant food sources by humans could have allowed not only colonization by vultures, but also their demographic expansion and their putative adaptation to the new island environment". For once, human activity has actually assisted in the diversification and adaptation of the Egyptian vulture, now globally threatened and classified as 'Endangered' on the IUCN Red List.


'/>"/>

Contact: Matt McKay
matthew.mckay@biomedcentral.com
44-203-192-2216
BioMed Central
Source:Eurekalert

Page: 1

Related biology news :

1. Mineral oil contamination in humans: A health problem?
2. Escherichia coli bacteria transferring between humans and mountain gorillas
3. Pigs and dogs can bridge gap between mice and humans in developing new therapies
4. Snails and humans use same genes to tell right from left
5. As super-predators, humans reshape their prey at super-natural speeds
6. Researchers genetically link Lou Gehrigs disease in humans to dog disease
7. Ecologists report quantifiable measures of natures services to humans
8. Early humans had jaws of steel
9. Ancestral genome of present-day African great apes & humans had burst of DNA sequence duplication
10. Genetic differences between yeasts greater than those between humans and chimpanzees
11. Social support during breast-feeding helps humans have more children
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:5/23/2017)... -- Hunova, the first robotic gym for the rehabilitation and functional motor sense ... Genoa, Italy . The first 30 robots will be available ... USA . The technology was developed and patented at the IIT ... Movendo Technology thanks to a 10 million euro investment from entrepreneur Sergio ... ...
(Date:5/16/2017)... May 16, 2017  Veratad Technologies, LLC ( www.veratad.com ... age and identity verification solutions, announced today they will ... 2017, May 15 thru May 17, 2017, in ... International Trade Center. Identity impacts the ... in today,s quickly evolving digital world, defining identity is ...
(Date:5/16/2017)... --  Bridge Patient Portal , an enterprise patient ... Systems , an electronic medical record solutions developer ... a partnership to build an interface between the ... products, including Centricity Practice Solution (CPS), Centricity Business ... integrations will allow healthcare delivery networks using GE ...
Breaking Biology News(10 mins):
(Date:5/26/2017)... ... 2017 , ... Activate Healthcare, a leading provider of on-site ... growing private companies, has selected Twine for its Employee Health Activation Platform. Activate ... model that empowers deep collaboration and behavior change. In randomized controlled trials, Twine ...
(Date:5/26/2017)... ... May 25, 2017 , ... Throughout this ... studies, describing how process development and economic goals were achieved in both industry ... a hollow-fiber bioreactor system, along with techniques for scaling production of mesenchymal stem ...
(Date:5/26/2017)... ... 25, 2017 , ... Studying biological events while they happen ... imaging using fluorescence microscopy is the perfect approach to explore these complex questions. ... be discussed, from small animal models and tissues to individual organelle and protein ...
(Date:5/26/2017)... ... May 25, 2017 , ... LabRoots , the leading ... scientists from around the world, is announcing a new textbook scholarship, the second scholarship ... and graduate students, 17 years or older, pursuing a degree in one of the ...
Breaking Biology Technology: