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:10/25/2014)... Research and Markets  has announced the addition of ... to their offering. Biometrics is a ... of their physical or behavioral patterns. It involves the ... fingerprints, face recognition, DNA, palm print, hand geometry, and ... and speech pattern/voice recognition. The data ...
(Date:10/22/2014)... -- Leading identity analyst firm Acuity Market Intelligence forecasts that ... will have a chip-based National eID card, including near-complete ... Asia , with its vast population, is ... 60% of all National eID cards issued between 2014 ... National eID Industry Report: 2014 Edition" — ...
(Date:10/18/2014)... 19th October 2014 Psychological stress and stress-related psychiatric ... aging-related diseases, but the molecular mechanisms underlying ... may contribute to the development of targeted ... for these devastating diseases. This work is ... congress in Berlin., Now an international group ...
Breaking Biology News(10 mins):Biometrics Market in Europe 2014-2018: Key Vendors are 3M Cogent, Cognitec, NEC and Safran 2Biometrics Market in Europe 2014-2018: Key Vendors are 3M Cogent, Cognitec, NEC and Safran 3Half the World's Population Will Have Chip-Based National Electronic Identity (eID) Cards by 2018 2Researchers find why depression and aging linked to increased disease risk 2
... the atmosphere and moving into marine systems, the world,s ... To address the growing concern for acidifying marine systems, ... under the Ocean Acidification theme of its Climate Research ... Office of Polar Programs, Directorate for Geosciences, and Directorate ...
... October 13, 2010) Before Alzheimer,s patients experience memory loss, ... A new study in mouse models by researchers ... mitochondria -- the powerhouses of the cell -- are one ... appeared in the online Early Edition of PNAS, also found ...
... North American comb jellyfish can sneak up on its ... successful predator. Researchers, including one from the University of ... jellyfish makes itself hydrodynamically ,invisible,. The North American ... known to consume vast quantities of zooplankton. A few ...
Cached Biology News:NSF awards grants to study effects of ocean acidification 2NSF awards grants to study effects of ocean acidification 3NSF awards grants to study effects of ocean acidification 4NSF awards grants to study effects of ocean acidification 5NSF awards grants to study effects of ocean acidification 6NSF awards grants to study effects of ocean acidification 7NSF awards grants to study effects of ocean acidification 8NSF awards grants to study effects of ocean acidification 9NSF awards grants to study effects of ocean acidification 10Early role of mitochondria in AD may help explain limitations to current beta amyloid hypothesis 2Voracious comb jellyfish 'invisible' to prey 2
(Date:10/22/2014)... YORK , Oct. 22, 2014 New ... in the in vitro diagnostic (IVD) test industry, especially ... Information. The healthcare market researcher listed more than 25 testing ... could be the future of IVD products. Kalorama details the ... The Worldwide Market for In Vitro Diagnostic Tests ...
(Date:10/22/2014)... The North American crystal oscillator market report defines ... and forecast of revenue. This market was valued at ... $623.6 million by 2018, at a CAGR of 3.3% ... of the North American crystal oscillator market report, to ... also provides a glimpse of the segmentation of the ...
(Date:10/22/2014)... San Diego, CA (PRWEB) October 22, 2014 ... laboratory balances from Sartorius, A & D Weighing, ... Sartorius CPA Semi-Micro Balance . The Sartorius ... looking for an affordable high-quality, precise, and user-friendly ... in manufacturing of laboratory equipment, their laboratory balances ...
(Date:10/22/2014)...   Synthetic Biologics, Inc. (NYSE MKT: SYN), ... infections and diseases, announced today that the U.S. Patent ... for a composition of matter patent application that covers ... SYN-004. This is Synthetic Biologics, first allowed patent application ... to the Company,s extensive C. difficile patent ...
Breaking Biology Technology:Report: Radical New IVD Test Approaches Key To Growth 2Report: Radical New IVD Test Approaches Key To Growth 3The North American crystal oscillator market is expected to reach $623.6 million by 2018 - New Report by MicroMarket Monitor 2The North American crystal oscillator market is expected to reach $623.6 million by 2018 - New Report by MicroMarket Monitor 3The North American crystal oscillator market is expected to reach $623.6 million by 2018 - New Report by MicroMarket Monitor 4Pipette.com Launches the Addition of Sartorius CPA Semi-Micro Balance to Their Product Portfolio with Special Promotional Pricing 2Pipette.com Launches the Addition of Sartorius CPA Semi-Micro Balance to Their Product Portfolio with Special Promotional Pricing 3Synthetic Biologics Announces Allowance of Key U.S. Composition of Matter Patent for C. difficile Program 2Synthetic Biologics Announces Allowance of Key U.S. Composition of Matter Patent for C. difficile Program 3Synthetic Biologics Announces Allowance of Key U.S. Composition of Matter Patent for C. difficile Program 4
... Sangamo BioSciences, Inc. (Nasdaq: SGMO ) today ... and year-end 2008 financial results on Wednesday, February 4, ... be followed by a conference call at 5:00 p.m. ... telephone and webcast. During the conference call, the company ...
... a,subsidiary of KV Pharmaceutical (NYSE: KVa/KVb), is issuing, ... 26, 2009, a nationwide,voluntary recall of the products ... a wholesale or a retail level as a ... conditions that did not,sufficiently comply with current Good ...
... Japan,s first second-generation drug-eluting stentNATICK, Mass., Jan. 28 ... ) announced today that it has received approval ... Welfare (MHLW) to market its TAXUS(R) Liberte(R) Paclitaxel-Eluting ... launch the product as soon as reimbursement approval ...
Cached Biology Technology:Sangamo BioSciences Announces Fourth Quarter and Year-End 2008 Conference Call and Webcast 2Sangamo BioSciences Announces Fourth Quarter and Year-End 2008 Conference Call and Webcast 3ETHEX Corporation Issues Nationwide Voluntary Recall of Products 2ETHEX Corporation Issues Nationwide Voluntary Recall of Products 3ETHEX Corporation Issues Nationwide Voluntary Recall of Products 4ETHEX Corporation Issues Nationwide Voluntary Recall of Products 5ETHEX Corporation Issues Nationwide Voluntary Recall of Products 6Boston Scientific Announces Japanese Approval for TAXUS(R) Liberte(R) Drug-Eluting Stent System 2Boston Scientific Announces Japanese Approval for TAXUS(R) Liberte(R) Drug-Eluting Stent System 3