Navigation Links
A snapshot of pupfish evolution in action
Date:1/10/2013

of the fish back to San Salvador.

"It was the craziest thing I've done," Martin said. "I was leaning on the stack of them in the middle of Miami airport."

Martin released the young fish into enclosures in the lakes of their grandparents. Three months later, he returned to check on the survivors and plotted them out on the adaptive landscape.

Most of the surviving fish were on an isolated peak adapted to a general style of feeding, with another peak representing fish adapted for eating hard-shelled prey. Competition between the fish had eliminated the fish whose jaws put them in the valleys between those peaks. The scale-eating fish did not survive.

The results explain why most pupfish species in America have pretty much the same diets, Martin said. The generalists are essentially stranded on their peak -- variants that get too far out fall into the valley and die out before they can make it to another peak.

"It's stabilizing selection," he said. An early burst of variation when fish entered a new environment with little competition could have allowed the shell-eaters and scale-eaters to evolve on San Salvador.


'/>"/>

Contact: Andy Fell
ahfell@ucdavis.edu
530-752-4533
University of California - Davis
Source:Eurekalert  

Page: 1 2

Related biology news :

1. Leading evolutionary scientist to discuss how genome of bacteria has evolved
2. An evolutionary surprise
3. Ancient Egyptian cotton unveils secrets of domesticated crop evolution
4. Did climate change shape human evolution?
5. A University of Tennessee professors hypothesis may be game changer for evolutionary theory
6. Analysis of stickleback genome sequence catches evolution in action
7. Study shows unified process of evolution in bacteria and sexual eukaryotes
8. Rapid method of assembling new gene-editing tool could revolutionize genetic research
9. Whats in a surname? New study explores what the evolution of names reveals about China
10. Scientists trace evolutionary history of what mammals eat
11. Not by DNA alone: How the epigenetics revolution is fostering new medicines
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
A snapshot of pupfish evolution in action
(Date:3/20/2015)... , Mar. 19, 2015 Research and Markets ... "Hand Geometry - Global Strategic Business Report" report ... markets for Hand Geometry in US$ Thousands. The report provides ... , Japan , Europe ... , and Rest of World. Annual estimates ...
(Date:3/19/2015)... , March 19, 2015  NXT-ID, Inc. (NASDAQ: ... company focused on the growing mobile commerce market, announces its ... a news clip that aired this week on ... . In a segment "The Next Great Thing", ... ,a new way to pay, and ,a really big breakthrough ...
(Date:3/17/2015)... March 17, 2015 Emotient, the leader ... today announced general availability of Emotient Analytics ... the analysis of facial expressions. The system analyzes ... content, products and services. It delivers audience response ... sentiment - as derived from facial evidence of ...
Breaking Biology News(10 mins):Hand Geometry - Global Strategic Business Report 2015: An Essential Security Component for both Government & Enterprise Sector 2Hand Geometry - Global Strategic Business Report 2015: An Essential Security Component for both Government & Enterprise Sector 3Hand Geometry - Global Strategic Business Report 2015: An Essential Security Component for both Government & Enterprise Sector 4NXT-ID's Wocket Smart Wallet Featured on Fox News Segment, "The Next Great Thing" 2NXT-ID's Wocket Smart Wallet Featured on Fox News Segment, "The Next Great Thing" 3New Emotient Web Service Measures Audience Response Using On-Demand Facial Expression Analysis 2New Emotient Web Service Measures Audience Response Using On-Demand Facial Expression Analysis 3New Emotient Web Service Measures Audience Response Using On-Demand Facial Expression Analysis 4
... NT APRIL 2010 High in the Mackenzie Mountains, ... being revealed as warming temperatures melt patches of ice that ... Tom Andrews, an archaeologist with the Prince of Wales Northern ... Polar Year Ice Patch Study, is amazed at the implements ...
... April 26, 2010 Energy in, energy out, it,s the ... more than two thirds of Americans classified as overweight or ... Journal of Nutrition Education and Behavior examines how ... loss programs. Researchers at the University of Kentucky and ...
... 26 BIO-key International, Inc. (OTC Bulletin Board: BKYI), a leader ... (OK) Sheriff,s Office successful deployment of an FBI-compliant advanced authentication solution for ... authentication. , , , ... http://www.newscom.com/cgi-bin/prnh/20050509/BIOKEYLOGO ) , , , ...
Cached Biology News:Ancient artifacts reveals as northern ice patches melt 2What's motivation got to do with weight loss? 2BIO-key(R) Delivers FBI-Compliant 2 Factor Authentication Solution for First Responders 2BIO-key(R) Delivers FBI-Compliant 2 Factor Authentication Solution for First Responders 3BIO-key(R) Delivers FBI-Compliant 2 Factor Authentication Solution for First Responders 4
(Date:4/23/2015)... 23, 2015 Proove Biosciences ... Medicine, is excited to announce the launch of ... This profile assesses 62 genetic variations to predict ... for commonly prescribed non-opioid pain medications, namely ibuprofen ... alprazolam (brand name Xanax) and acetaminophen (brand name ...
(Date:4/23/2015)... , April 23, 2015 /PRNewswire/ - Crystal Research Associates, ... Informational Overview ® (EIO) on Aeterna Zentaris Inc. ... is available on Crystal Research Associates, website at ... Zentaris, website at www.aezsinc.com . Aeterna ... specialty biopharmaceutical company in oncology, endocrinology, and women,s health. ...
(Date:4/22/2015)... -- The Heinz Family Foundation today announced the winners ... will present unrestricted cash awards totaling $1.25 million ... determination in finding solutions to critical issues both ... include a prolific cartoonist whose quirky characters depict ... two former Marines who are re-engaging veterans in ...
(Date:4/22/2015)... , April 22, 2015   MPIRICA ... today announced $1.6M in Series A financing from ... The funding helps accelerate consumer and employer awareness ... covering surgeries at over 4,800 U.S. hospitals. ... you are probably very concerned about choosing the ...
Breaking Biology Technology:Proove Biosciences Launches World’s First Test to Predict Responders to Commonly Prescribed Non-Opioid Pain Medications 2Proove Biosciences Launches World’s First Test to Predict Responders to Commonly Prescribed Non-Opioid Pain Medications 3Crystal Research Associates, LLC Issues Executive Informational Overview (EIO) on Aeterna Zentaris Inc. 2Crystal Research Associates, LLC Issues Executive Informational Overview (EIO) on Aeterna Zentaris Inc. 3From a Scientist Who Develops Human Microlivers to a New Yorker Cartoonist Who Masterfully Depicts the Humor and Heartbreak of Everyday Life: The 20th Heinz Awards Honors Six Changemakers 2From a Scientist Who Develops Human Microlivers to a New Yorker Cartoonist Who Masterfully Depicts the Humor and Heartbreak of Everyday Life: The 20th Heinz Awards Honors Six Changemakers 3From a Scientist Who Develops Human Microlivers to a New Yorker Cartoonist Who Masterfully Depicts the Humor and Heartbreak of Everyday Life: The 20th Heinz Awards Honors Six Changemakers 4From a Scientist Who Develops Human Microlivers to a New Yorker Cartoonist Who Masterfully Depicts the Humor and Heartbreak of Everyday Life: The 20th Heinz Awards Honors Six Changemakers 5From a Scientist Who Develops Human Microlivers to a New Yorker Cartoonist Who Masterfully Depicts the Humor and Heartbreak of Everyday Life: The 20th Heinz Awards Honors Six Changemakers 6MPIRICA Health Inc. Secures $1.6M to Promote FICO-Like Quality Scores for Surgeries 2
... Agreement Enables Spherix to Pursue All Pharmaceutical and Health-Oriented ... June 23 Spherix Incorporated (Nasdaq: SPEX ... a provider of technical and regulatory consulting services to ... it has terminated the 1996 license agreement pursuant to ...
... SAO PAULO, June 23 What does sugarcane have ... successful,30-year experience with sugarcane as a feedstock for ethanol. In ... replace a fossil fuel with,renewable energy has saved some 600 ... years for six billion trees to achieve the same,results. , ...
... , Continuing Supplies Will Be Used For NDA and ... Type 2 Diabetes , , BETHESDA, Md., June ... an innovator in biotechnology for diabetes therapy, and a ... supplement, biotechnology and pharmaceutical companies, today announced that it ...
Cached Biology Technology:Spherix Announces Termination of Arla License Agreement 2Spherix Announces Termination of Arla License Agreement 3Spherix Announces Termination of Arla License Agreement 4Sugarcane as a Key Element Against Global Warming to be Highlighted at Green Week in Brussels 2Sugarcane as a Key Element Against Global Warming to be Highlighted at Green Week in Brussels 3Sugarcane as a Key Element Against Global Warming to be Highlighted at Green Week in Brussels 4Spherix Announces Full-Scale Production of Pharmaceutical Tagatose 2Spherix Announces Full-Scale Production of Pharmaceutical Tagatose 3Spherix Announces Full-Scale Production of Pharmaceutical Tagatose 4
... GRADE ,5-Bromo-4-chloro-3-indoxyl-beta-D-galactopyranoside C 14 H ... 6 ,M.W.= 408.63 ,Assay: Greater ... in DMF) ,Biological Activity: Blue color ... Analysis: Agrees with theoretical values ,Thin ...
BD IMagnet 1 each...
... and M.W. Turner (1997). • This ... used in the production of high-quality ... immunoassays, the standardisation of antibodies and ... amplification systems, enzyme immunoassays for detecting ...
MitoScreen (JC-1) Kit , 100 tests Consult technical datasheet for details....
Biology Products: