Navigation Links
Ice age's arctic tundra lush with wildflowers for woolly mammoths, study finds
Date:2/7/2014

MANHATTAN, Kan. -- A recent study in the journal Nature finds that nearly 50,000 years ago during the ice age, the landscape was not as drab as once thought -- it was filled with colorful wildflowers. These wildflowers helped sustain woolly mammoths and other giant grazing animals.

The study, "Fifty thousand years of Arctic vegetation and megafauna diet," included Joseph Craine, assistant professor in the Division of Biology at Kansas State University. It was led by the Centre for GeoGenetics at the University of Copenhagen and was a collaboration of more than 25 academic institutions and research laboratories from around the world.

The study looked at 50,000 years of arctic vegetation history to understand how fauna had changed with animals and humans.

Historically, the belief is that the ice age's landscape was covered by largely grass-dominated systems -- called steppe. These grasses were replaced by mosses and other boggy vegetation when the ice age ended nearly 10,000 years ago, Craine said.

For the study, researchers visited museums in Alaska, Canada, Norway and Russia to collect DNA samples from inside the gut of frozen mammoths, bison, horses and rhinoceros that lived in the ice age.

Molecular techniques were used to look for plant DNA in each ancient animal's digestive tract. Plant DNA was then sequenced and reconstructed to differentiate wildflowers from grasses.

"Once the gut contents and soils started getting sequenced, they began finding lots more wildflowers than before," Craine said. "Nearly half of the digested plants were wildflowers. So, rather than having this really grassy, dull system like we believe existed, it suddenly was one that was very colorful."

The study challenges the view that the arctic landscape in the ice age was largely grasslands.

"Part of the scientific debate is knowing what the past looked like," Craine said. "There have always been debates a
'/>"/>

Contact: Joseph Craine
jcraine@k-state.edu
785-532-3062
Kansas State University
Source:Eurekalert

Page: 1 2

Related medicine news :

1. Heartwood Home Health & Hospice Announced for the 2013 HealthInsight Quality Award HealthInsight Program Encourages Excellence in Patient Care
2. Health First Strongly Encourages Community to Get Flu Vaccination: Virus Proves Deadly in Brevard County, Florida
3. “Benefits of Aloe Vera,” A New Article On Vkool.com Illustrates the Advantages of Aloe Vera - V-kool
4. Online Insurance Marketplace Presents 5 Advantages of Having 30 Year Term Life Insurance!
5. Passages Malibu Welcomes 2014 With Tips for Starting Fresh
6. Life Insurance No Medical Exam Plans Have Three Important Advantages For Seniors
7. Healthentic Encourages Philanthropy, Helps Neighbors by Donating to United Gospel Mission
8. India Network International Visitor Health Insurance Announces Higher Pre-existing Coverage Limits for Visitors of All Ages
9. “Raw Food Benefits,” A New Article On Healthreviewcenter.com, Gives People Advantages of Raw Food - V-kool
10. Body For The Ages Nonprofit Discusses Anaerobic vs. Aerobic Exercise at Their Newly Launched Website
11. Dogs recognize familiar faces from images
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:9/19/2014)... 19, 2014 (HealthDay News) -- The U.S. Food and Drug ... Thursday. Trulicity is part of a class of once-a-week injectable ... type 2 diabetes. "Trulicity is a new treatment ... treatment regimens to control blood sugar levels in the overall ... of the FDA,s Office of Drug Evaluation II, said in ...
(Date:9/19/2014)... The Alliance for Bangladesh Worker Safety ... Fire Protection Association (NFPA), a recognized international leader ... a Memorandum of Understanding signed by both organizations, ... stakeholders with information, guidance and access to training ... safety of workers in ready-made garment (RMG) factories ...
(Date:9/19/2014)... MetroMD, a leading anti-ageing clinic has called its ... health. This therapy has grown tremendously across USA in the ... safe and dependable. It has far reaching benefits for ageing ... a very healthy and active lifestyle even beyond their middle ... senior therapist at MetroMD said, “HGH or Human Growth hormones ...
(Date:9/19/2014)... September 19, 2014 "I have difficulty ... wrinkles due to stretching the skin around my eyes ... "This inspired me to design a more convenient method ... LENS SYSTEM provides a quicker, easier, more sanitary method ... to perform this task manually, saves time and effort, ...
(Date:9/19/2014)... - New research published today in the online journal ... reach 6,800 in West Africa by the end of ... , Arizona State University and Harvard University researchers ... rise in cases significantly increased in August in Liberia ... was put in place, indicating that the mass quarantine ...
Breaking Medicine News(10 mins):Health News:FDA Approves Another Weekly Injectable Drug for Type 2 Diabetes 2Health News:Alliance for Bangladesh Worker Safety and NFPA Sign Memorandum of Understanding to Strengthen Safety in Bangladesh Garment Factories 2Health News:Alliance for Bangladesh Worker Safety and NFPA Sign Memorandum of Understanding to Strengthen Safety in Bangladesh Garment Factories 3Health News:MetroMD Announces Better HGH Therapy - the ‘God Particle’ of Human Health 2Health News:Research predicts possible 6,800 new Ebola cases this month 2
... North Carolina in Chapel Hill that was published in the ... two genes - C282Y and H63D, which are linked to ... increased risk of developing colon cancer. For the research, the ... which, more than 400 already had colon cancer, and were ...
... at Trinity College, Dublin, Ireland, have found from a ... arterial stiffness after smoking even one cigarette in both ... effects of smoking on large artery properties in 185 ... years. 116 non-smokers// were compared with 41 chronic smokers ...
... have traditionally been treated by removing a disc or placing ... together. Now, an artificial disc which is being studied as ... phase one study that was recently completed compared the prosthesis ... patients// were randomized, with one having a fusion operation for ...
... is being reassessed to find out if it could again ... and leprosy. The drug which is unlicensed in Europe was ... morning// sickness. However, it was banned after mothers who took ... for the Evaluation of Medicinal Products (EMEA) is now considering ...
... among children that were known until now were chickenpox, ... neurologists have found that stroke is also among one ... go unnoticed. A National Hospital's database analysis by Dr. ... California showed that four in 1000 newborns had a ...
... recent health survey across England showed that many do ... cancer and other serious diseases. The survey included nearly// ... trends were revealed by the study. ,The survey ... eating and household income. Almost 40% of women in ...
Cached Medicine News:Health News:Artificial discs available as replacements for damaged discs 2Health News:Stroke also in list of common childhood ailments 2
(Date:9/19/2014)... TRIANGLE PARK, N.C. , Sept. 19, 2014 ... focused on cloud-based drug design and development, partnering ... The company,s mission is to design new drugs ... 1 and 2 partners to further their development. ... its portfolio investments. To support this business model, ...
(Date:9/19/2014)... Sept. 19, 2014  Diplomat, the nation,s largest independent ... Dreyer to the Board of Directors on September ... will also serve as chair of the Audit Committee. ... of accounting, financial, compliance and operating experience in the ... served as chief financial officer, chief operating officer and ...
(Date:9/19/2014)... WALTHAM, Mass. , Sept. 19, 2014  Alere ... in rapid diagnostics, issued the following statement today in ... Combating Antibiotic-Resistant Bacteria. "As the global leader ... President for establishing a national strategy to address the ... continuing to work with the Administration on initiatives to ...
Breaking Medicine Technology:Cloud Pharmaceuticals Announces Partnering Sessions and Presentation Schedule 2David Dreyer Appointed to Diplomat Board of Directors 2Alere Applauds President's Executive Order Combating Antibiotic-Resistant Bacteria 2
... Oct. 12 Ethicon Endo-Surgery, Inc., today ... at the 95th Annual Clinical Congress of the ... technologies of worldwide leading HARMONIC® ultrasonic and ENSEAL® ... delivery options that provide superior energy application for ...
... 12 Stereotaxis, Inc. (Nasdaq: STXS ) announced today ... Stereotaxis common stock have exercised in full their over-allotment option ... stock. The 7,475,000 shares of Stereotaxis common stock in ... option, are being sold at a price to the public ...
Cached Medicine Technology:Ethicon Endo-Surgery Unveils Full Energy Portfolio for First Time at American College of Surgeons Clinical Congress 2Ethicon Endo-Surgery Unveils Full Energy Portfolio for First Time at American College of Surgeons Clinical Congress 3Stereotaxis Announces Underwriters' Exercise of Over-Allotment Option 2Stereotaxis Announces Underwriters' Exercise of Over-Allotment Option 3
... Bird and Cronin, Inc. ... of Patient Footwear, Orthopedic ... Care Products. Our products ... quality and available in ...
... Splint uses safe, mild to moderate force ... at the MP joints. Dorsal-based splint does ... ulnar polycentric hinges located at the MP ... malleable finger rings can be individually shaped ...
... constructed of a durable heat moldable thermoplastic for ... of the hand and fingers from stress following ... later stages of the healing process. , ... positions the wrist at 30° of flexion, the ...
Bunell Mini-Modified Safety Finger Pin reduces PIP flexion contractures....
Medicine Products: