Navigation Links
A hitchhiker's guide to the Galápagos: co-evolution of Galápagos mockingbirds and their parasites
Date:10/2/2011

Along with the famous finches the Galpagos mockingbirds had a great influence on Charles Darwin's theory of evolution. Now, 176 years later, three of the four mockingbird species are among the rarest birds in the world. New research published in BioMed Central's open access journal BMC Evolutionary Biology untangles the evolutionary relationships between Galpagos mockingbirds and provides information about their parasites to help ensure the birds survival.

Researchers from the University of South Bohemia in the Czech Republic, the Natural History Museum London, and the University of Zurich in Switzerland used three parasites specific to the mockingbirds to reveal their coevolutionary history. Mitochondrial and nuclear DNA from the mockingbirds, their feather mites, and also two species of parasitic louse was sequenced. The least host-specific louse showed no pattern of co-evolution with the mockingbirds, but the two other parasites showed very similar evolutionary histories.

Jan tefka, lead author of the research, said, "Combining DNA data from several organisms that share their history, improves our confidence in the evolutionary patterns we see. In this case the host specific parasites reveal more about the recent evolution of the mockingbirds than the bird data in isolation." He continued, "These results have implications for the conservation and taxonomy of Galpagos mockingbirds. For example the critically endangered Floreana mockingbird is now extinct on the island of Floreana. However, to our surprise, the number of parasites on one of the remaining populations was much less than expected. This suggests that the infestation was probably due to a recent introduction of the parasite from a different island."

Paquita Hoeck from the University of Zurich adds, "Hosts and parasites evolve specific adaptations when living in isolation. To avoid the undesirable spread of parasites or pathogens after a planned re-introduction of mockingbirds back to Floreana, different histories of parasites in the two remaining satellite populations need to be considered."


'/>"/>

Contact: Dr. Hilary Glover
hilary.glover@biomedcentral.com
44-020-319-22370
BioMed Central
Source:Eurekalert  

Related biology news :

1. Could bacterial hitchhikers influence formation of new host species?
2. Mice stem cells guided into myelinating cells by the trillions
3. Purdue technology used in first fluorescence-guided ovarian cancer surgery
4. The geophysicists guide to striking it rich
5. TREW Marketing Introduces Smart Marketing for Engineers, a Free Guidebook for Small Businesses Targeting Technical Audiences
6. Harmful effects of hypothyroidism on maternal and fetal health drive new guidelines for managing thyroid disease in pregnancy
7. Mismatch between cancer genetics counseling and testing guidelines and physician practices
8. Low adherence to biopsy guidelines affects celiac disease diagnosis in the United States
9. A chaperone system guides tail-anchored membrane proteins to their destined membrane
10. Adult stem cells carry their own baggage: Epigenetics guides stem cell fate
11. First joint ESC/EAS guidelines for the management of dyslipidaemias
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
A hitchhiker's guide to the Galápagos: co-evolution of Galápagos mockingbirds and their parasites
(Date:12/15/2016)... 2016 "Increase in mobile transactions is driving ... biometrics market is expected to grow from USD 4.03 ... at a CAGR of 29.3% between 2016 and 2022. ... growing demand for smart devices, government initiatives, and increasing ... component is expected to grow at a high rate ...
(Date:12/7/2016)... 2016 According to a new market research report "Emotion ... Expression, Voice Recognition), Service, Application Area, End User, And Region - Global Forecast ... USD 6.72 Billion in 2016 to USD 36.07 Billion by 2021, at a ... Reading ... MarketsandMarkets Logo ...
(Date:12/6/2016)...  Zimmer Biomet Holdings, Inc. (NYSE and SIX: ZBH) (the ... €500.0 million principal amount of its 1.414% senior unsecured notes ... senior unsecured notes due 2026. The closing ... subject to the satisfaction of customary closing conditions.  The notes ... The Company intends to use the net proceeds ...
Breaking Biology News(10 mins):
(Date:1/11/2017)... Washington, USA (PRWEB) , ... January 11, 2017 ... ... SPIE, the international society for optics and photonics , are commending the U.S. ... photonics, following the signing Friday by the President of the American Innovation and ...
(Date:1/11/2017)... Francisco, CA (PRWEB) , ... January 11, 2017 ... ... series of in-kind scientific grants to ground-breaking microbiome studies. Its most recent microbiome ... School of Medicine, who will study the effect of long-term use of oral ...
(Date:1/11/2017)... ... January 11, 2017 , ... Back pain relief technology ... Shots and No Surgery for positive back pain relief for WAR members. , This ... worldwide and could be life changing for millions suffering from chronic back pain. , ...
(Date:1/11/2017)...  GenVec, Inc. (NASDAQ: GNVC ), ... its chief scientific officer, Douglas E. Brough ... for translational development of innovative gene and cell ... Phacilitate Cell & Gene Therapy World 2017 Conference ... Brough,s presentation will highlight the utility of the ...
Breaking Biology Technology: