Navigation Links
Land iguanas under continuing threat on Galapagos archipelago
Date:11/26/2008

The Galpagos Islands, which provided impetus and inspiration for Charles Darwin's seminal work, "On the Origin of Species", are home to unique populations of reptiles. Since the time of man's first visit in the 16th century to this crucial incubator for evolutionary theory, the islands' native plants and animals have faced grave challenges, including severe pressures from introduced species, habitat destruction and predation by man himself.

In some instances, this has led to reduced populations and even extinction. In the 20th century, conservation efforts began, but according to new research published this week in the scientific journal Molecular Ecology considerably more must be done to insure the long-term survival of land-dwelling iguanas on the archipelago.

In their new article, "Galapagos Land Iguanas Remnant Populations," an international coalition of scientists, led by Michel Milinkovitch, from the University of Geneva, Switzerland, detail their near-decade-long effort to assess the population genetics of land iguanas on the six islands where the reptiles occur today.

Population genetics is a cornerstone of modern evolutionary synthesis. It employs principles of molecular genetics and sophisticated data analysis to identify populations and characterize the genetic diversity within and the levels of genetic differentiation among these evolutionarily significant groups. Changes are influenced by the evolutionary forces of natural selection, genetic drift, mutation and gene flow. Scientists obtain blood or tissue samples from subjects and examine multiple loci across their genome. In so doing, researchers are able to draw conclusions regarding relationships, genetic diversity and genetic drift among various populations.

Galpagos land iguanas diverged from the famous Galpagos marine iguanas 10 to 20 million years ago, and there are currently two recognized species of terrestrial iguanas; Conolophus subcristatus and C. pal
'/>"/>

Contact: Tim Vines
managing.editor@molecol.com
778-989-8755
Wiley-Blackwell
Source:Eurekalert

Page: 1 2

Related biology news :

1. Global climate change: The impact of El Nio on Galpagos marine iguanas
2. Global climate change: The impact of El Niño on Galápagos marine iguanas
3. Dancing atoms now understood
4. Using water to understand human society, from the industrial revolution to global trade
5. Research-based undergraduate course expands beyond Washington University
6. Understanding how oxidative stress impairs endothelial progenitor cell function
7. Photos: Turn Your Couch into a Disney Ride for Under $300
8. Small satellite takes on large thunderstorms
9. Complex systems and Mars missions help understand how life began
10. NYU biologist Bonneau named among 20 "visionary" scientists under 40 by Discover magazine
11. NSF grant to launch undergrads from Case Western Reserve into math and science teaching
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:7/9/2015)... 9, 2015  Synaptics Inc. (NASDAQ: SYNA ), a ... it will report financial results for the fourth quarter ... after the close of market. The company will host ... 2:00 p.m. PT (5:00 p.m. ET), during which management ... on the live call, analysts and investors should dial ...
(Date:7/8/2015)... YORK , July 8, 2015  BD (Becton, ... BD & Guidepoint Mentor, a new program ... Guidepoint,s expert network services. BD is ... to improve healthcare delivery and outcomes and, with the ... entrepreneur will be able to directly engage with industry ...
(Date:7/7/2015)... OXFORD, Conn. , July 7, 2015 NXT-ID, Inc. ... company focused on the growing mobile commerce market announces a revised ... airing this week. The commercial will air on CNBC in ... Los Angeles and San Francisco ... The commercial focuses on Wocket,s ability to replace all the ...
Breaking Biology News(10 mins):Synaptics to Report Fourth Quarter, Fiscal Year 2015 Results on July 30 2BD and Guidepoint Team to Connect Healthcare Start-up Companies With Business and Scientific Experts 2BD and Guidepoint Team to Connect Healthcare Start-up Companies With Business and Scientific Experts 3Wocket Smart Wallet Commercials Airing on CNBC to Showcase This Summer's Must- Have Tech Product 2Wocket Smart Wallet Commercials Airing on CNBC to Showcase This Summer's Must- Have Tech Product 3
... tiny plants living in the ocean need iron for energy ... for one, they can,t exactly turn to natural iron ... So where does their iron come from? New research ... on the seafloor: minute particles (called nanoparticles) of pyrite, or ...
... and girls have put many of the trappings of teenagerhood behind ... some of the brain resculpting that characterizes the decade of adolescence ... in a new study that measured brainwaves of subjects in their ... kinds of neurological changes underway in a teen brain is a ...
... chemistry professors have invented a new polarimeter, a basic ... of transverse waves, such as light waves, that could ... has now patented the device. Certain compounds ... polarized light. Plane polarized light is light whose electric ...
Cached Biology News:As good as gold 2Study: Pace of brain development still strong in late teens 2Chemistry researchers receive patent for new scientific measurement instrument 2
(Date:7/29/2015)... July 29, 2015 /PRNewswire/ - BioAmber Inc. (NYSE: BIOA ... Company,s Chief Financial Officer has resigned.  The Company has ... Officer who retired in December 2014, as full time ... permanent successor.     Andy Ashworth began ... ensure a smooth transition.  Andy was the Company,s CFO ...
(Date:7/29/2015)... 2015 Research and ... of the "Global Biosimilars Market, 2015 - ... The Global Biosimilars Market, 2015 - 2025, report ... biosimilars market. With the blockbuster biologics losing patent ... biosimilars are being viewed as viable substitutes to ...
(Date:7/29/2015)... July 29, 2015  Pfenex Inc. (NYSE MKT: PFNX) ... will be released on Thursday, August 13, 2015, before ... Pfenex management will host a conference call to discuss ... press release outlining the financial results and business update ... Please call 1-866-376-8058 (US) or 1-412-542-4131 (international) and ...
(Date:7/29/2015)... 2015 /PRNewswire/ - Aeterna Zentaris Inc. (NASDAQ: AEZS ... an optimized Erk inhibitor molecule for development, thus ... a new class of potential cancer therapies. ... target for therapeutic intervention in cancer. Recently approved ... for B-Raf and Mek inhibitors. Erk inhibitors may ...
Breaking Biology Technology:BioAmber Announces Change in Chief Financial Officer 2BioAmber Announces Change in Chief Financial Officer 3Global Biosimilars Market to 2025: Monoclonal Antibodies (mAbs), Insulin, Interferons, G-CSF/ GM-CSF, Erythropoietins and Others 2Global Biosimilars Market to 2025: Monoclonal Antibodies (mAbs), Insulin, Interferons, G-CSF/ GM-CSF, Erythropoietins and Others 3Pfenex To Report Second Quarter 2015 Results and Provide Business Update on Thursday, August 13, 2015 2Aeterna Zentaris Announces Optimized Erk Inhibitor Compounds For Further Development 2Aeterna Zentaris Announces Optimized Erk Inhibitor Compounds For Further Development 3
... The streaming of real-time information across your field of vision ... a prototype contact lens that could potentially provide the wearer ... today, 22 November, in IOP Publishing,s Journal of Micromechanics ... demonstrated its safety by testing it on live eyes. There ...
... Trieste (Italy), November 21, 2011. CNR Rao, Linus Pauling ... Center for Advanced Scientific Research and immediate past president ... world, has been named the winner of the 2011 ... which is designed to give international recognition and visibility ...
... A program co-funded by the Air Force Office of Scientific Research ... Inventions of 2011. Drs Ali Aliev, Yuri Gartstein ... have succeeded in producing what is technically referred to as the ... some in the popular press have termed it: an ,invisibility cloak,." ...
Cached Biology Technology:Terminator-style info-vision takes step towards reality 2CNR Rao wins 2011 Ernesto Illy Trieste Science Prize 2CNR Rao wins 2011 Ernesto Illy Trieste Science Prize 3CNR Rao wins 2011 Ernesto Illy Trieste Science Prize 4
KOR-1 (C-20)...
...
VAP-1 (S-13)...
... at the 3, 3', 4, and 4' ... an internal standard for the quantification of ... spectrometry. PGE2 is one of the primary ... of the most widely investigated prostaglandins. Its ...
Biology Products: