HOME >> BIOLOGY >> NEWS
Earliest evidence of humans affecting aquatic ecology in Canada, United States

(Kingston, ON) New findings from Canadian scientists dispel the belief that European settlers were the first humans to cause major changes to Canadian and U.S. freshwater ecosystems.

A University of Toronto-led, multidisciplinary team including researchers from Queen's, McGill, and University of Ottawa show for the first time that prehistoric Inuit whalers dramatically altered high Arctic pond ecosystems through their hunting practices eight centuries ago a legacy that is still evident today.

The principal investigator on the team, U of T Geology Professor Marianne Douglas, is currently in Antarctica using the same kind of detection techniques to study climate change there.

"Our findings are an example of a long-term human intervention in a place where you really don't expect it," says Queen's Biology Professor John Smol, Canada Research Chair in Environmental Change and co-head of the university's Paleoecological Environmental Assessment and Research Laboratory (PEARL). "It seems totally ironic since we tend to think of the high Arctic as being unaffected by humans locally."

Results of the study will be published in the Proceedings of the National Academy of Sciences on-line early edition the week of Jan 26.

The researchers conducted their study on Somerset Island in the Canadian Arctic, where prehistoric Thule whalers (ancestors of the present day Inuit) had the highest concentration of settlement between 400 and 800 years ago. They brought with them a well-developed whaling technology that included large open skin boats, whaling harpoons and lances, and seal skin floats. A semi-nomadic people, the Thule settled in temporary camps each summer, and in the winter returned to semi-permanent villages constructed partially from whalebone.

According to James Savelle, the McGill University archeologist on the research team, while the number of bowheads killed each year would have varied, during the more productive whaling
'"/>

Contact: Nancy Dorrance
dorrance@post.queensu.ca
613-533-2869
Queen's University
26-Jan-2004


Page: 1 2 3

Related biology news :

1. Earliest evidence of hereditary genetic disorder discovered by Hebrew University researchers
2. Earliest European modern humans found
3. Earliest evidence of lemurs discovered in Pakistan, far from their current home, Science reports
4. Earliest human ancestors discovered in Ethiopia
5. Earliest chewing herbivore ever found spurred vertebrate life on land, scientists find
6. Earliest Modern Tree Lived 360-345 Million Years Ago
7. Evidence For Earliest Maritime-Based Societies In The Americas Reported In Science Magazine
8. New evidence of radiation risk in childhood leukaemia
9. Oldest evidence for processing of wild cereals: starch grains from barley, wheat, on grinding stone
10. Study finds first evidence COX-2 enzymes can regulate DNA damage
11. Researchers find evidence that sea turtles navigate with magnetic maps

Post Your Comments:
*Name:
*Comment:
*Email:


(Date:4/13/2016)...  IMPOWER physicians supporting Medicaid patients in ... standard in telehealth thanks to a new partnership with ... IMPOWER patients can routinely track key health measurements, such ... and, when they opt in, share them with IMPOWER ... local retail location at no cost. By leveraging this ...
(Date:3/22/2016)... , March 22, 2016 ... report "Electronic Sensors Market for Consumer Industry by Type ... Others), Application (Communication & IT, Entertainment, Home ... Global Forecast to 2022", published by MarketsandMarkets, ... expected to reach USD 26.76 Billion by ...
(Date:3/15/2016)... York , March 15, 2016 ... market report published by Transparency Market Research "Digital Door Lock ... and Forecast 2015 - 2023," the global digital door lock ... 731.9 Mn in 2014 and is forecast to grow at ... Growth of micro, small and medium enterprises (MSMEs) across the ...
Breaking Biology News(10 mins):
(Date:5/19/2016)... 19, 2016 There is no ... given the relentless pressures in pricing and lack in ... investors circle though - numerous opportunities are up for ... session, ActiveWallSt.com,s presents four names in this sector: Portola ... Inc. (NASDAQ: VTAE ), Anthera Pharmaceuticals Inc. ...
(Date:5/18/2016)... COLUMBIA, Md. (PRWEB) , ... May 18, 2016 ... ... new Shimadzu Pharmaceutical Sciences Summer Camp at The University of Toledo. This two-day ... school students an opportunity to explore the field of pharmaceutical sciences in preparation ...
(Date:5/18/2016)... ... ... Ryan Benton was diagnosed with Duchenne Muscular Dystrophy (DMD) at the age of ... is a relatively common progressive genetic disorder, which causes aggressive deterioration of the muscles. ... met with the founder of the Stem Cell Institute in Panama City, ...
(Date:5/17/2016)... ... May 17, 2016 , ... The Children’s Tumor Foundation is ... across the globe will show their support in the fight against neurofibromatosis (NF) by ... is a genetic disorder that causes tumors to grow on nerves throughout the body. ...
Breaking Biology Technology:
Cached News: