Navigation Links
New study shows how giant tortoises, alligators thrived in High Arctic 50 million years ago
Date:8/24/2010

A new study of the High Arctic climate roughly 50 million years ago led by the University of Colorado at Boulder helps to explain how ancient alligators and giant tortoises were able to thrive on Ellesmere Island well above the Arctic Circle, even as they endured six months of darkness each year.

The new study, which looked at temperatures during the early Eocene period 52 to 53 million years ago, also has implications for the impacts of future climate change as Arctic temperatures continue to rise, said University of Colorado at Boulder Associate Professor Jaelyn Eberle of the department of geological sciences, lead author of the study.

The team used a combination of oxygen isotope ratios from fossil bone and tooth enamel of mammals, fish and turtles that lived together on Ellesmere Island to estimate the average annual Eocene temperature for the site. They also were able to tease out temperature estimates for the warmest and coldest months of the year, critical data that should help scientists better understand past and future biodiversity in the High Arctic as the climate warms, including the geographical ranges and species richness of animals and plants.

The team concluded the average temperatures of the warmest month on Ellesmere Island during the early Eocene were from 66 to 68 degrees Fahrenheit (19-20 degrees C), while the coldest month temperature was about 32 to 38 degrees F (0-3.5 degrees C). "Our data gathered from multiple organisms indicate it probably did not get below freezing on Ellesmere Island during the early Eocene, which has some interesting implications," she said.

A paper on the subject was published in this month's issue of Earth and Planetary Science Letters. Co-authors included Henry Fricke from Colorado College, John Humphrey and Logan Hackett from the Colorado School of Mines, Michael Newbrey from University of Alberta, Edmonton, and Howard Hutchison from the University Californi
'/>"/>

Contact: Jaelyn Eberle
jaelyn.eberle@colorado.edu
303-492-8069
University of Colorado at Boulder
Source:Eurekalert  

Page: 1 2 3 4

Related biology news :

1. Long-term study shows effect of climate change on animal diversity
2. £2 million study to reveal workings of dementia genes
3. New study looks to define evangelicals and how they affect polling
4. CU-Boulder study suggests air quality regulations miss key pollutants
5. Researchers study acoustic communication in deep-sea fish
6. Study reveals homeowner perceptions in fire-prone areas
7. Researchers study how pistachios may improve heart health
8. Study: urban black bears live fast, die young
9. New study indicates link between weight gains during pregnancy and dieting history
10. Study reveals specific gene in adolescent men with delinquent peers
11. Sweat it out: UH study examines ability of sweat patches to monitor bone loss
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
New study shows how giant tortoises, alligators thrived in High Arctic 50 million years ago
(Date:8/3/2015)... , Aug. 3, 2015 Synaptics, Inc. (Nasdaq: ... solutions, today announced that members of the executive management ... Pacific Crest Global Technology Leadership Forum on Tuesday, August ... will be held at the Sonnenalp Resort in ... presentation may include forward-looking information. An audio webcast of ...
(Date:7/31/2015)... julho de 2015 A 10 a. ... realizada pela BGI de 22-25 de outubro de 2015, em ... A conferência está celebrando seu 10 o. aniversário este ... tornou uma das reuniões mais influentes do mundo no ... dinâmicos, entusiastas e prazerosos. A ICG-10 ...
(Date:7/31/2015)... , 31. Juli 2015 Die 10. internationale Konferenz ... BGI veranstaltet und findet vom 22. bis 25. ... , statt. Die Konferenz feiert ... Start 2006 ist die ICG weltweit zu einem ... Sie ist eines der dynamischsten, enthusiastischsten und angenehmsten ...
Breaking Biology News(10 mins):A 10a. Conferência Internacional sobre Genômica (ICG-10) será em outubro 2A 10a. Conferência Internacional sobre Genômica (ICG-10) será em outubro 3Die 10. internationale Konferenz zu Genomik (ICG-10) beginnt im Oktober 2Die 10. internationale Konferenz zu Genomik (ICG-10) beginnt im Oktober 3
... PROVIDENCE, R.I. [Brown University] -- Bisphenol A (BPA), a ... recently become infamous -- and banned in some places -- ... new study by Brown University toxicologists, however, finds that male ... BPA while pregnant developed no signs of harm to their ...
... A complex of proteins in the bacterium E.coli ... viruses and other invaders has been discovered to have the ... of Energy,s Lawrence Berkeley National Laboratory (Berkeley Lab). This discovery ... might think. In its never-ending battle to protect you ...
... (Bronx, NY) -- Researchers at Albert Einstein College ... a novel type of antibody works against pneumococcal bacteria. ... in the September/October issue of mBio , the ... Until recently, scientists thought that antibodies work against pneumococcal ...
Cached Biology News:No harm to mice testes from BPA in utero 2Close up look at a microbial vaccination program 2Close up look at a microbial vaccination program 3Close up look at a microbial vaccination program 4Newly identified antibodies may improve pneumonia vaccine design 2
(Date:7/31/2015)... , July 31, 2015 In today,s ... that help them drive positive health outcomes, improve ... source of patient care in their communities. At ... tradeshow and conference, AmerisourceBergen announced a new set ... Services Administration Organization and help independent pharmacies endure ...
(Date:7/31/2015)... ... , ... R-Biopharm is proud to announce the RIDASCREEN® Gliadin ... has been accepted by AOAC International as Official First Action method. The AOAC ... by R5 Competitive ELISA,” based on a specific monoclonal antibody to potentially celiac ...
(Date:7/30/2015)... , July 30, 2015   GenoSpace ... for the interpretation and analysis of genomic and ... Fischer has joined the company as Vice ... - http://photos.prnewswire.com/prnh/20150730/250931 "GenoSpace ... to integrate, interpret, analyze and explore complex sets ...
(Date:7/30/2015)... VANCOUVER, Washington , July 30, 2015 ... "Biosimulation Market, by Product (Software, Molecular Modeling, PB/PK, PKPD, ... (Drug Discovery & Development, Preclinical, Clinical Trial), by End ... the Biosimulation Market is expected to reach USD 2,107.99 ... at a CAGR of 15.29%. Browse ...
Breaking Biology Technology:AmerisourceBergen Unveils Suite of Enhanced Capabilities for Independent Pharmacies at ThoughtSpot 2015 2AmerisourceBergen Unveils Suite of Enhanced Capabilities for Independent Pharmacies at ThoughtSpot 2015 3RIDASCREEN® Competitve Gliadin Receives AOAC Official First Action Status 2GenoSpace Introduces Matthew Fischer as Vice President of Sales and Marketing 2Biosimulation Market Worth 2,107.99 Million USD by 2020 2Biosimulation Market Worth 2,107.99 Million USD by 2020 3Biosimulation Market Worth 2,107.99 Million USD by 2020 4
... Holdings, Inc. (OTC,Bulletin Board: HTWO) announced today that ... Mirant Energy Trading LLC, a subsidiary of Mirant ... biofuel technology in utility,scale power generation applications., ... biofuel for a gas,turbine test program that will ...
... Considered Largest Hurdle in Adoption of Incisionless ... Surgery (NOTES), SAN CLEMENTE, Calif., Dec. 19 ... Incisionless Surgery, today announced that,its EndoSurgical Operating System(TM) (EOS) ... (an incision in the stomach wall) during,a NOTES procedure ...
... Calif., Dec. 19 AMDL, Inc., (Amex:,ADL), today ... manufacturer, and marketer of pharmaceutical, nutraceutical,diagnostic, consumer healthcare ... first large-scale JPGreen Health and Personal Care Center ... Jade to be converted,into a flagship JPGreen Health ...
Cached Biology Technology:H2Diesel Holdings Announces Test Burn Agreement With Mirant Corp. 2H2Diesel Holdings Announces Test Burn Agreement With Mirant Corp. 3USGI Medical Demonstrates First System for Gastrotomy Closure in NOTES 2AMDL's First Full Service JPGreen Health and Personal Care Center Set to Open in Hangzhou, China 2
... DASGIP Overhead Drive for individual and parallel ... flexible agitation of DASGIP vessels, featuring range ... ,Up to 16 overhead drives can ... Cultivation Systems fedbatch-pro® and cellferm-pro® for microbiology ...
... your Ion Chromatography requirements, IonQuest will ... The newly developed conductivity detector has ... . In addition to the standard ... with other detectors, such as electrochemical, refractive ...
This pump accomodates StemSep ; pump feed columns of the following sizes : 0.3in., 0.5in., 0.6in., and 1.0in.....
...
Biology Products: