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:4/3/2017)... 2017  Data captured by IsoCode, IsoPlexis ... a statistically significant association between the potency ... and objective response of cancer patients post-treatment. ... whether cancer patients will respond to CAR-T ... as to improve both pre-infusion potency testing and ...
(Date:3/30/2017)... The research team of The Hong Kong ... identification by adopting ground breaking 3D fingerprint minutiae recovery and matching ... and accuracy for use in identification, crime investigation, immigration control, security ... ... A research team led by ...
(Date:3/29/2017)... 29, 2017  higi, the health IT company that ... North America , today announced a Series B ... of EveryMove. The new investment and acquisition accelerates higi,s ... to transform population health activities through the collection and ... higi collects and secures data today on behalf ...
Breaking Biology News(10 mins):
(Date:8/21/2017)... (PRWEB) , ... August 21, 2017 , ... ... for two speakers for this two-part educational webinar, in which attendees will learn ... and associated protein factor composition. Along with an overview of the development and ...
(Date:8/18/2017)... Jose, CA (PRWEB) , ... August 18, 2017 ... ... advanced precision Lithography Equipment for the Semiconductor, MEMS, and Microfluidics Industries, announces the ... features and specifications found more often in automated production mask aligners. OAI has ...
(Date:8/16/2017)... ... August 16, 2017 , ... Tunnell Consulting announced today ... the ISPE Annual Meeting and Expo , to be held October 29 through ... theme is “Driving innovation to advance patient therapies.” , The ISPE Annual Meeting and ...
(Date:8/16/2017)... ... August 16, 2017 , ... While art and science ... more closely connected than one might think. A Mesh Is Also a Snare, ... the University City Science Center’s Esther Klein Gallery (EKG) on August 17 and run ...
Breaking Biology Technology:
Cached News: