Living stromatolites in the Andes

Posted by Jim:

Cabrol, N. A. et al. J. Geophys. Res. doi:10.1029/2008JG000818 (in the press).

via High window on the past : Nature News.

This is an interesting article for me in several ways.  It of course is interesting because of our own work on “living stromatolites” in Mexico.  Second, our collaborator Valeria Souza is quoted in the piece.  Third, the piece mentions that the water  is high in NO3 just like at Cuatro Cienegas.  I would infer that it is low in PO4 and thus might be  another piece of evidence that somehow stromatolite persistence is associated with severe P limitation.  Fourth, it’s in the Argentinian Andes, the target of my future sabbatical leave!

More media, including an NPR piece.

Posted by Jim:

Below is a summary from the Colorado State media team that is just a sample of the news outlets covering the Science paper.  There are so many because most of them are picking up the Associated Press piece.  Even a newspaper in Taiwan has picked it up!

Also, here is the link to the NPR piece on the article from KDNK, which covers central Colorado:  NPR .

xxxxx

Study: Nitrogen pollution worsens in Rockies lakes
Boston Globe (The)
11/5/2009
“This is filling in some of what we didn’t know before,” said Jill Baron, a scientist with the U.S. Geological Survey and adjunct professor at the Natural Resource Ecology Laboratory at Colorado State University in Fort Collins.
Read More…
Airborne Nitrogen Affects Aquatic Ecosystem in Alpine Lakes

7thSpace Interactive (press release) – ý12 minutes agoý

Examining nitrogen deposition in alpine and subalpine lakes in Colorado, Sweden and Norway, James Elser, a limnologist at Arizona State University (ASU) and …
Study: Nitrogen Pollution Worsens In Rockies Lakes

cbs4denver.com – ý26 minutes agoý

… said Jill Baron, a scientist with the US Geological Survey and adjunct professor at the Natural Resource Ecology Laboratory at Colorado State University …
Study: Nitrogen pollution worsens in Rockies lakes

IdahoStatesman.com – Judith Kohler – ý2 hours agoý

… said Jill Baron, a scientist with the US Geological Survey and adjunct professor at the Natural Resource Ecology Laboratory at Colorado State University …
Study: Rocky Mountain National Park’s lakes in peril

ReporterHerald.com – ý4 hours agoý

… said Jill Baron, a scientist with the US Geological Survey and adjunct professor at the Natural Resource Ecology Laboratory at Colorado State University …
Airborne Nitrogen Shifts Aquatic Nutrient Limitation In Pristine Lakes

RedOrbit – ý4 hours agoý

… from the University of Oslo; Jill Baron of the United States Geological Survey and Natural Resource Ecology Laboratory at Colorado State University; …
Study: Nitrogen pollution worsens in Rockies lakes

Modesto Bee – Judith Kohler – ý5 hours agoý

… said Jill Baron, a scientist with the US Geological Survey and adjunct professor at the Natural Resource Ecology Laboratory at Colorado State University …
Study: Nitrogen pollution worsens in Rockies lakes

Houston Chronicle – Judith Kohler – ý6 hours agoý

… said Jill Baron, a scientist with the US Geological Survey and adjunct professor at the Natural Resource Ecology Laboratory at Colorado State University …
Airborne nitrogen shifts aquatic nutrient limitation in pristine lakes

Science Centric – ý7 hours agoý

… from the University of Oslo; Jill Baron of the United States Geological Survey and Natural Resource Ecology Laboratory at Colorado State University; …
Study: Nitrogen pollution worsens in Rockies lakes

Mid Columbia Tri City Herald – Judith Kohler – ý7 hours agoý

… said Jill Baron, a scientist with the US Geological Survey and adjunct professor at the Natural Resource Ecology Laboratory at Colorado State University …
RMNP lakes` algae polluted

Daily Camera – Judith Kohler – ý10 hours agoý

… said Jill Baron, a scientist with the US Geological Survey and adjunct professor at the Natural Resource Ecology Laboratory at Colorado State University …
Nitrogen pollution worsens in Rockies lakes

Omaha World-Herald – Judith Kohler – ý11 hours agoý

… said Jill Baron, a scientist with the US Geological Survey and adjunct professor at the Natural Resource Ecology Laboratory at Colorado State University …
Study: Nitrogen pollution worsens in Rockies lakes

FOX11AZ.com – ý13 hours agoý

… said Jill Baron, a scientist with the US Geological Survey and adjunct professor at the Natural Resource Ecology Laboratory at Colorado State University …
Study: Nitrogen Pollution Worsens In Rockies Lakes

cbs4denver.com – ý14 hours agoý

… said Jill Baron, a scientist with the US Geological Survey and adjunct professor at the Natural Resource Ecology Laboratory at Colorado State University …
Study: Nitrogen Pollution Worsens In Rockies Lakes

TheDenverChannel.com – Larry VanSickle – ý16 hours agoý

… said Jill Baron, a scientist with the US Geological Survey and adjunct professor at the Natural Resource Ecology Laboratory at Colorado State University …
Study: Nitrogen pollution worsens in Rockies lakes

Daily Mail – Charleston – Judith Kohler – ý16 hours agoý

… said Jill Baron, a scientist with the US Geological Survey and adjunct professor at the Natural Resource Ecology Laboratory at Colorado State University …
Study: Nitrogen pollution worsens in Rockies lakes

eTaiwan News – Judith Kohler – ý17 hours agoý

… said Jill Baron, a scientist with the US Geological Survey and adjunct professor at the Natural Resource Ecology Laboratory at Colorado State University …
Study: Nitrogen Pollution Worsens in Rockies Lakes

New York Times – ý17 hours agoý

… said Jill Baron, a scientist with the US Geological Survey and adjunct professor at the Natural Resource Ecology Laboratory at Colorado State University …
Full Text (HTML)

Science Magazine (subscription) – ý17 hours agoý

3 United States Geological Survey and Natural Resource Ecology Laboratory, Colorado State University, Fort Collins, CO 80523, USA. …
Shifts in Lake N:P Stoichiometry and Nutrient Limitation Driven by Atmospheric …

Science Magazine (subscription) – ý17 hours agoý

3 United States Geological Survey and Natural Resource Ecology Laboratory, Colorado State University, Fort Collins, CO 80523, USA.
Study: Nitrogen Pollution Worsens In Rockies Lakes

WSAV-TV – Judith Kohler – ý17 hours agoý

… said Jill Baron, a scientist with the US Geological Survey and adjunct professor at the Natural Resource Ecology Laboratory at Colorado State University …
Study: Nitrogen Pollution Worsens In Rockies Lakes

WSAV-TV – Judith Kohler – ý17 hours agoý

… said Jill Baron, a scientist with the US Geological Survey and adjunct professor at the Natural Resource Ecology Laboratory at Colorado State University …
Airborne nitrogen shifts aquatic nutrient limitation in pristine lakes

Eureka! Science News – ý18 hours agoý

… from the University of Oslo; Jill Baron of the United States Geological Survey and Natural Resource Ecology Laboratory at Colorado State University; …
Study: Airborne nitrogen pollution producing junk food for fish in Rocky …

Metro Canada – Edmonton – Judith Kohler – ý18 hours agoý

… said Jill Baron, a scientist with the US Geological Survey and adjunct professor at the Natural Resource Ecology Laboratory at Colorado State University …
Rocky Mountain National Park Pollution: Air Pollution From Denver, Agriculture …

AlterNet – ý18 hours agoý

Arizona State University professor James Elser, the study’s lead author, said the effect of airborne nitrogen on once-pristine lakes is greater than …

http://nt2.ggpht.com/news/tbn/_jBoWD-lqwsCRM/6.jpg

Arizona State University
Research shows impacts from airborne nitrogen

Arizona State University – ý18 hours agoý

… from the University of Oslo; Jill Baron of the United States Geological Survey and Natural Resource Ecology Laboratory at Colorado State University; …
Study: Airborne nitrogen pollution producing junk food for fish in Rocky …

Metro Canada – Vancouver – Judith Kohler – ý18 hours agoý

… said Jill Baron, a scientist with the US Geological Survey and adjunct professor at the Natural Resource Ecology Laboratory at Colorado State University …
Study: Airborne nitrogen pollution producing junk food for fish in Rocky …

Metro Canada – Calgary – Judith Kohler – ý18 hours agoý

… said Jill Baron, a scientist with the US Geological Survey and adjunct professor at the Natural Resource Ecology Laboratory at Colorado State University …
Study: Airborne nitrogen pollution producing junk food for fish in Rocky …

Metro Canada – Ottawa – Judith Kohler – ý18 hours agoý

… said Jill Baron, a scientist with the US Geological Survey and adjunct professor at the Natural Resource Ecology Laboratory at Colorado State University …
Study: Airborne nitrogen pollution producing junk food for fish in Rocky …

Winnipeg Free Press – Judith Kohler – ý18 hours agoý

… said Jill Baron, a scientist with the US Geological Survey and adjunct professor at the Natural Resource Ecology Laboratory at Colorado State University …
Study: Airborne nitrogen pollution producing junk food for fish in Rocky …

Metro Canada – Toronto – Judith Kohler – ý18 hours agoý

… said Jill Baron, a scientist with the US Geological Survey and adjunct professor at the Natural Resource Ecology Laboratory at Colorado State University …
Study: Nitrogen pollution worsens in Rockies lakes

9NEWS.com – Jeffrey Wolf – ý18 hours agoý

… said Jill Baron, a scientist with the US Geological Survey and adjunct professor at the Natural Resource Ecology Laboratory at Colorado State University …
Study: Nitrogen pollution worsens in Rockies lakes

San Diego Union Tribune – Judith Kohler – ý18 hours agoý

… said Jill Baron, a scientist with the US Geological Survey and adjunct professor at the Natural Resource Ecology Laboratory at Colorado State University …
Study: Nitrogen pollution worsens in Rockies lakes

KTVB – ý18 hours agoý

… said Jill Baron, a scientist with the US Geological Survey and adjunct professor at the Natural Resource Ecology Laboratory at Colorado State University …
Rocky Mountain National Park Pollution: Air Polution From Denver, Agriculture …

Huffington Post (blog) – ý18 hours agoý

… said Jill Baron, a scientist with the US Geological Survey and adjunct professor at the Natural Resource Ecology Laboratory at Colorado State University …
Study: Nitrogen pollution worsens in Rockies lakes

FOX11AZ.com – ý18 hours agoý

… said Jill Baron, a scientist with the US Geological Survey and adjunct professor at the Natural Resource Ecology Laboratory at Colorado State University …

http://nt1.ggpht.com/news/tbn/ORzmQOKOOisHeM/6.jpg

Air America
Nitrogen Pollution Worsens In Rockies Lakes

Air America – ý18 hours agoý

… said Jill Baron, a scientist with the US Geological Survey and adjunct professor at the Natural Resource Ecology Laboratory at Colorado State University …
Study: Nitrogen pollution worsens in Rockies lakes

Victoria Advocate – Judith Kohler – ý18 hours agoý

… said Jill Baron, a scientist with the US Geological Survey and adjunct professor at the Natural Resource Ecology Laboratory at Colorado State University …
Study: Nitrogen pollution worsens in Rockies lakes

Water World – Judith Kohler – ý18 hours agoý

… said Jill Baron, a scientist with the US Geological Survey and adjunct professor at the Natural Resource Ecology Laboratory at Colorado State University …
Study: Nitrogen pollution worsens in Rockies lakes

phillyBurbs.com – Judith Kohler – ý19 hours agoý

… said Jill Baron, a scientist with the US Geological Survey and adjunct professor at the Natural Resource Ecology Laboratory at Colorado State University …
Study: Airborne nitrogen pollution producing junk food for fish in Rocky …

The San Francisco Examiner – Judith Kohler – ý19 hours agoý

… said Jill Baron, a scientist with the US Geological Survey and adjunct professor at the Natural Resource Ecology Laboratory at Colorado State University …
Study: Nitrogen pollution worsens in Rockies lakes

News 10NBC – ý19 hours agoý

… said Jill Baron, a scientist with the US Geological Survey and adjunct professor at the Natural Resource Ecology Laboratory at Colorado State University …
Study: Nitrogen pollution worsens in Rockies lakes

KAALtv.com – Judith Kohler – ý19 hours agoý

… said Jill Baron, a scientist with the US Geological Survey and adjunct professor at the Natural Resource Ecology Laboratory at Colorado State University …
Study: Nitrogen pollution worsens in Rockies lakes

Hilton Head Island Packet – Judith Kohler – ý19 hours agoý

… said Jill Baron, a scientist with the US Geological Survey and adjunct professor at the Natural Resource Ecology Laboratory at Colorado State University …
Study: Nitrogen pollution worsens in Rockies lakes

WBOC TV 16 – Judith Kohler – ý19 hours agoý

… said Jill Baron, a scientist with the US Geological Survey and adjunct professor at the Natural Resource Ecology Laboratory at Colorado State University …
Study: Nitrogen Pollution Worsens In Rockies Lakes

CBS News – ý19 hours agoý

… said Jill Baron, a scientist with the US Geological Survey and adjunct professor at the Natural Resource Ecology Laboratory at Colorado State University …
Study: Nitrogen pollution worsens in Rockies lakes

24 Medica – Glenn Rosenberg – ý19 hours agoý

… said Jill Baron, a scientist with the US Geological Survey and adjunct professor at the Natural Resource Ecology Laboratory at Colorado State University …
Study: Nitrogen pollution worsens in Rockies lakes

istockAnalyst.com (press release) – Judith Kohler – ý19 hours agoý

… said Jill Baron, a scientist with the US Geological Survey and adjunct professor at the Natural Resource Ecology Laboratory at Colorado State University …
Study: Nitrogen pollution worsens in Rockies lakes

Belleville News Democrat – Judith Kohler – ý19 hours agoý

… said Jill Baron, a scientist with the US Geological Survey and adjunct professor at the Natural Resource Ecology Laboratory at Colorado State University …
Study: Nitrogen pollution worsens in Rockies lakes

KTVB – ý19 hours agoý

… said Jill Baron, a scientist with the US Geological Survey and adjunct professor at the Natural Resource Ecology Laboratory at Colorado State University …
Study: Nitrogen pollution worsens in Rockies lakes

MyMotherLode.com – ý19 hours agoý

… said Jill Baron, a scientist with the US Geological Survey and adjunct professor at the Natural Resource Ecology Laboratory at Colorado State University …
Study: Nitrogen pollution worsens in Rockies lakes

Greenville Daily Reflector – ý19 hours agoý

… said Jill Baron, a scientist with the US Geological Survey and adjunct professor at the Natural Resource Ecology Laboratory at Colorado State University …
Study: Nitrogen pollution worsens in Rockies lakes

OneNewsNow – Judith Kohler – ý19 hours agoý

… said Jill Baron, a scientist with the US Geological Survey and adjunct professor at the Natural Resource Ecology Laboratory at Colorado State University …
Study: Nitrogen pollution worsens in Rockies lakes

WBTV – Judith Kohler – ý19 hours agoý

… said Jill Baron, a scientist with the US Geological Survey and adjunct professor at the Natural Resource Ecology Laboratory at Colorado State University …
Study: Nitrogen pollution worsens in Rockies lakes

WCAX – Judith Kohler – ý19 hours agoý

… said Jill Baron, a scientist with the US Geological Survey and adjunct professor at the Natural Resource Ecology Laboratory at Colorado State University …
Study: Nitrogen pollution worsens in Rockies lakes

SunHerald.com (registration) – Judith Kohler – ý19 hours agoý

… said Jill Baron, a scientist with the US Geological Survey and adjunct professor at the Natural Resource Ecology Laboratory at Colorado State University …
Study: Nitrogen pollution worsens in Rockies lakes

Centre Daily Times – Judith Kohler – ý19 hours agoý

… said Jill Baron, a scientist with the US Geological Survey and adjunct professor at the Natural Resource Ecology Laboratory at Colorado State University …
Study: Nitrogen pollution worsens in Rockies lakes

KJCT8.com – Judith Kohler – ý19 hours agoý

… said Jill Baron, a scientist with the US Geological Survey and adjunct professor at the Natural Resource Ecology Laboratory at Colorado State University …
Study: Nitrogen pollution worsens in Rockies lakes

The Olympian – Judith Kohler – ý19 hours agoý

… said Jill Baron, a scientist with the US Geological Survey and adjunct professor at the Natural Resource Ecology Laboratory at Colorado State University …
Study: Nitrogen pollution worsens in Rockies lakes

MSN Money – Judith Kohler – ý19 hours agoý

… said Jill Baron, a scientist with the US Geological Survey and adjunct professor at the Natural Resource Ecology Laboratory at Colorado State University …
Study: Nitrogen pollution worsens in Rockies lakes

CharlotteObserver.com – Judith Kohler – ý19 hours agoý

… said Jill Baron, a scientist with the US Geological Survey and adjunct professor at the Natural Resource Ecology Laboratory at Colorado State University …
Study: Nitrogen pollution worsens in Rockies lakes

Omaha World-Herald – Judith Kohler – ý19 hours agoý

… said Jill Baron, a scientist with the US Geological Survey and adjunct professor at the Natural Resource Ecology Laboratory at Colorado State University …
Study: Nitrogen pollution worsens in Rockies lakes

TheNewsTribune.com – Judith Kohler – ý19 hours agoý

… said Jill Baron, a scientist with the US Geological Survey and adjunct professor at the Natural Resource Ecology Laboratory at Colorado State University …
Study: Nitrogen pollution worsens in Rockies lakes

Fort Worth Star Telegram – Judith Kohler – ý19 hours agoý

… said Jill Baron, a scientist with the US Geological Survey and adjunct professor at the Natural Resource Ecology Laboratory at Colorado State University …
Study: Nitrogen pollution worsens in Rockies lakes

Las Cruces Sun-News – Judith Kohler – ý19 hours agoý

… Ecology Laboratory at Colorado State University in Fort Collins. Baron has studied air pollution levels in Rocky Mountain National Park since 1981. …
Study: Airborne nitrogen pollution producing junk food for fish in Rocky …

Washington Examiner – Judith Kohler – ý19 hours agoý

… said Jill Baron, a scientist with the US Geological Survey and adjunct professor at the Natural Resource Ecology Laboratory at Colorado State University …
Study: Nitrogen pollution worsens in Rockies lakes

News & Observer – Judith Kohler – ý19 hours agoý

… said Jill Baron, a scientist with the US Geological Survey and adjunct professor at the Natural Resource Ecology Laboratory at Colorado State University …
Study: Nitrogen pollution worsens in Rockies lakes

SunHerald.com (press release) – Judith Kohler – ý19 hours agoý

… said Jill Baron, a scientist with the US Geological Survey and adjunct professor at the Natural Resource Ecology Laboratory at Colorado State University …
Study: Airborne nitrogen pollution producing junk food for fish in Rocky …

Fox 59 – Judith Kohler – ý19 hours agoý

… said Jill Baron, a scientist with the US Geological Survey and adjunct professor at the Natural Resource Ecology Laboratory at Colorado State University …
Study: Nitrogen pollution worsens in Rockies lakes

KTVZ – Judith Kohler – ý19 hours agoý

… said Jill Baron, a scientist with the US Geological Survey and adjunct professor at the Natural Resource Ecology Laboratory at Colorado State University …
Study: Nitrogen pollution worsens in Rockies lakes

Contra Costa Times – Judith Kohler – ý19 hours agoý

… Ecology Laboratory at Colorado State University in Fort Collins. Baron has studied air pollution levels in Rocky Mountain National Park since 1981. …
Study: Nitrogen pollution worsens in Rockies lakes

MiamiHerald.com – Judith Kohler – ý19 hours agoý

… said Jill Baron, a scientist with the US Geological Survey and adjunct professor at the Natural Resource Ecology Laboratory at Colorado State University …
Study: Nitrogen pollution worsens in Rockies lakes

Marin Independent-Journal – Judith Kohler – ý19 hours agoý

… Ecology Laboratory at Colorado State University in Fort Collins. Baron has studied air pollution levels in Rocky Mountain National Park since 1981. …
Study: Nitrogen pollution worsens in Rockies lakes

Gather.com – ý19 hours agoý

… said Jill Baron, a scientist with the US Geological Survey and adjunct professor at the Natural Resource Ecology Laboratory at Colorado State University …
Study: Nitrogen pollution worsens in Rockies lakes

Philadelphia Inquirer – Judith Kohler – ý19 hours agoý

… said Jill Baron, a scientist with the US Geological Survey and adjunct professor at the Natural Resource Ecology Laboratory at Colorado State University …
Study: Nitrogen pollution worsens in Rockies lakes

Columbus Ledger-Enquirer – Judith Kohler – ý19 hours agoý

… said Jill Baron, a scientist with the US Geological Survey and adjunct professor at the Natural Resource Ecology Laboratory at Colorado State University …
Study: Nitrogen pollution worsens in Rockies lakes

San Luis Obispo Tribune – Judith Kohler – ý19 hours agoý

… said Jill Baron, a scientist with the US Geological Survey and adjunct professor at the Natural Resource Ecology Laboratory at Colorado State University …
Study: Nitrogen pollution worsens in Rockies lakes

Kentucky.com – Judith Kohler – ý19 hours agoý

… said Jill Baron, a scientist with the US Geological Survey and adjunct professor at the Natural Resource Ecology Laboratory at Colorado State University …
Study: Nitrogen pollution worsens in Rockies lakes

Monterey County Herald – Judith Kohler – ý19 hours agoý

… Ecology Laboratory at Colorado State University in Fort Collins. Baron has studied air pollution levels in Rocky Mountain National Park since 1981. …
Study: Airborne nitrogen pollution producing junk food for fish in Rocky …

WHNT – Judith Kohler – ý19 hours agoý

… said Jill Baron, a scientist with the US Geological Survey and adjunct professor at the Natural Resource Ecology Laboratory at Colorado State University …
Study: Nitrogen pollution worsens in Rockies lakes

The Daily Advance – ý19 hours agoý

… said Jill Baron, a scientist with the US Geological
Study: Nitrogen pollution worsens in Rockies lakes

Sacramento Bee – Judith Kohler – ý19 hours agoý

… said Jill Baron, a scientist with the US Geological Survey and adjunct professor at the Natural Resource Ecology Laboratory at Colorado State University …
Study: Nitrogen pollution worsens in Rockies lakes

Las Vegas Sun – ý19 hours agoý

… said Jill Baron, a scientist with the US Geological Survey and adjunct professor at the Natural Resource Ecology Laboratory at Colorado State University …
Study: Airborne nitrogen pollution producing junk food for fish in Rocky …

Daily Press – Judith Kohler – ý19 hours agoý

… said Jill Baron, a scientist with the US Geological Survey and adjunct professor at the Natural Resource Ecology Laboratory at Colorado State University …
Study: Airborne nitrogen pollution producing junk food for fish in Rocky …

Baltimore Sun – Judith Kohler – ý19 hours agoý

… said Jill Baron, a scientist with the US Geological Survey and adjunct professor at the Natural Resource Ecology Laboratory at Colorado State University …
Study: Nitrogen pollution worsens in Rockies lakes

Dayton Daily News – Judith Kohler – ý19 hours agoý

… said Jill Baron, a scientist with the US Geological Survey and adjunct professor at the Natural Resource Ecology Laboratory at Colorado State University …
Study: Nitrogen pollution worsens in Rockies lakes

Bismarck Tribune – Judith Kohler – ý19 hours agoý

… said Jill Baron, a scientist with the US Geological Survey and adjunct professor at the Natural Resource Ecology Laboratory at Colorado State University …
Study: Airborne nitrogen pollution producing junk food for fish in Rocky …

Minneapolis Star Tribune – Judith Kohler – ý19 hours agoý

… said Jill Baron, a scientist with the US Geological Survey and adjunct professor at the Natural Resource Ecology Laboratory at Colorado State University …
Study: Nitrogen pollution worsens in Rockies lakes

KTAR.com – Judith Kohler – ý19 hours agoý

… said Jill Baron, a scientist with the US Geological Survey and adjunct professor at the Natural Resource Ecology Laboratory at Colorado State University …
Study: Airborne nitrogen pollution producing junk food for fish in Rocky …

Orlando Sentinel – Judith Kohler – ý19 hours agoý

… said Jill Baron, a scientist with the US Geological Survey and adjunct professor at the Natural Resource Ecology Laboratory at Colorado State University …
Study: Nitrogen pollution worsens in Rockies lakes

San Jose Mercury News – Judith Kohler – ý19 hours agoý
… Ecology Laboratory at Colorado State University in Fort Collins. Baron has studied air pollution levels in Rocky Mountain National Park since 1981. …
Study: Nitrogen pollution worsens in Rockies lakes

FederalNewsRadio.com – Judith Kohler – ý19 hours agoý

… said Jill Baron, a scientist with the US Geological Survey and adjunct professor at the Natural Resource Ecology Laboratory at Colorado State University …
Study: Nitrogen pollution worsens in Rockies lakes

WTOP – Judith Kohler – ý19 hours agoý

… said Jill Baron, a scientist with the US Geological Survey and adjunct professor at the Natural Resource Ecology Laboratory at Colorado State University …
Study: Airborne nitrogen pollution producing junk food for fish in Rocky …

KFSM – Judith Kohler – ý19 hours agoý

… said Jill Baron, a scientist with the US Geological Survey and adjunct professor at the Natural Resource Ecology Laboratory at Colorado State University …
Study: Nitrogen pollution worsens in Rockies lakes

Atlanta Journal Constitution – Judith Kohler – ý19 hours agoý

… said Jill Baron, a scientist with the US Geological Survey and adjunct professor at the Natural Resource Ecology Laboratory at Colorado State University …
Study: Airborne nitrogen pollution producing junk food for fish in Rocky …

Gaea Times – Judith Kohler – ý19 hours agoý

… said Jill Baron, a scientist with the US Geological Survey and adjunct professor at the Natural Resource Ecology Laboratory at Colorado State University …
Study: Nitrogen pollution worsens in Rockies lakes

The Associated Press – Judith Kohler – ý19 hours agoý

… said Jill Baron, a scientist with the US Geological Survey and adjunct professor at the Natural Resource Ecology Laboratory at Colorado State University …
Study: Nitrogen pollution worsens in Rockies lakes

Town Hall – Judith Kohler – ý19 hours agoý

… said Jill Baron, a scientist with the US Geological Survey and adjunct professor at the Natural Resource Ecology Laboratory at Colorado State University …
Study: Airborne nitrogen pollution producing junk food for fish in Rocky …

Hartford Courant – Judith Kohler – ý19 hours agoý

… said Jill Baron, a scientist with the US Geological Survey and adjunct professor at the Natural Resource Ecology Laboratory at Colorado State University …
Study: Nitrogen pollution worsens in Rockies lakes

Seattle Post Intelligencer – Judith Kohler – ý19 hours agoý

… said Jill Baron, a scientist with the US Geological Survey and adjunct professor at the Natural Resource Ecology Laboratory at Colorado State University …
Study: Airborne nitrogen pollution producing junk food for fish in Rocky …

Sun-Sentinel.com – Judith Kohler – ý19 hours agoý

… said Jill Baron, a scientist with the US Geological Survey and adjunct professor at the Natural Resource Ecology Laboratory at Colorado State University …

Study: Nitrogen pollution worsens in Rockies lakes

Seattle Times – Judith Kohler – ý19 hours agoý

… said Jill Baron, a scientist with the US Geological Survey and adjunct professor at the Natural Resource Ecology Laboratory at Colorado State University …
Study: Airborne nitrogen pollution producing junk food for fish in Rocky …

Chicago Tribune – Judith Kohler – ý19 hours agoý

… said Jill Baron, a scientist with the US Geological Survey and adjunct professor at the Natural Resource Ecology Laboratory at Colorado State University …
Study: Nitrogen pollution worsens in Rockies lakes

Air America – ý19 hours agoý

… said Jill Baron, a scientist with the US Geological Survey and adjunct professor at the Natural Resource Ecology Laboratory at Colorado State University …
Study: Nitrogen Pollution Worsens in Rockies Lakes

ABC News – Judith Kohler – ý19 hours agoý

… said Jill Baron, a scientist with the US Geological Survey and adjunct professor at the Natural Resource Ecology Laboratory at Colorado State University …
Airborne Nitrogen Shifts Aquatic Nutrient Limitation In Pristine Lakes

Science Daily (press release) – ý19 hours agoý

… from the University of Oslo; Jill Baron of the United States Geological Survey and Natural Resource Ecology Laboratory at Colorado State University; …
New Studies by Colorado State Scientist Show Changes in Alpine Lake Ecological …

Colorado State University (press release) – ý20 hours agoý

A Colorado State University research scientist contributed to two new scientific papers published today that explain how extra nitrogen in undisturbed lakes …

http://nt3.ggpht.com/news/tbn/IwHfKSAXbWax2M/6.jpg

Insciences Organisation
Airborne Nitrogen Affects Aquatic Ecosystem in Alpine Lakes

Insciences Organisation – ý21 hours agoý

Examining nitrogen deposition in alpine and subalpine lakes in Colorado, Sweden and Norway, James Elser, a limnologist at Arizona State University (ASU) and …

Skål (cheers, in Norwegian)!

Posted by Michelle:

Dag Hessen, Tom Andersen and others recently gathered at UiO to celebrate the appearance of the nitrogen deposition paper in the journal Science.

Embargo lifted: our new paper on stoichiometric impacts of N deposition published in Science

Posted by Jim:

The news releases have begun to appear for our paper showing that N deposition to lakes shifts phytoplankton from N-limited to P-limited growth in Colorado and Norway and Sweden.  Links are below, including a video interview in the NitrogenNews link.

Elser, J.J., T. Andersen, J.S. Baron, A. Bergstrom, M. Jansson, M. Kyle, K.R. Nydick, L. Steger, D.O. Hessen. 2009. Shifts in lake N:P stoichiometry and nutrient limitation driven by atmospheric nitrogen deposition. Science 326: 835 – 837.  link

http://www.nitrogennews.com/

http://www.nsf.gov/news/news_summ.jsp?cntn_id=115879

http://www.eurekalert.org/pub_releases/2009-11/asu-ans110309.php

http://cbs4denver.com/local/Study.Airborne.nitrogen.2.1294216.html

http://sols.asu.edu/news/2009/39_news_09.php

http://www.news.colostate.edu/Release/4894

http://www.cbsnews.com/stories/2009/11/05/ap/business/main5540140.shtml

http://www.huffingtonpost.com/2009/11/05/rocky-mountain-national-p_0_n_347689.html
http://www.sciencecodex.com/airborne_nitrogen_shifts_aquatic_nutrient_limitation_in_pristine_lakes
http://pda.physorg.com/nitrogendeposition-nitrogen-lakes_news176655560.html
http://www.sciencedaily.com/releases/2009/11/091105143815.htm
http://insciences.org/article.php?article_id=7439
http://esciencenews.com/articles/2009/11/05/airborne.nitrogen.shifts.aquatic.nutrient.limitation.pristine.lakes

Follow the “re-twitters” of the NitrogenNews coverage:  http://tinyurl.com/ykau7lr

Thanks and congratulations to all who were involved in this project.  It was a lot of work!  Special thanks to the brilliant Laura Steger who ran the bioassays to perfection.  And to Marcia Kyle who kept it all glued together.

The Distinction Between “Which” and “That”

The Distinction Between “Which” and “That”.

Posted by Jim:

I know that various of the students in the lab are writing papers and proposals right now.  I know this because I am heavily buried in editing.  Here’s an excellent explanation of when to use “that” and when to use “which”.  This is something I’ve always struggled with myself over the years.  And these days I’ve had trouble explaining to my coauthors, etc,  why I am crossing out “which” and replacing with “that” (or vice versa).

I hope this makes sense to folks.

A perfect gift for the stoichiometry freak who has everything?

Periodic Table Table – Boing Boing.

Posted by Jim:

Check it out!  A periodic table table!  I love it.

 

Nutrient imbalances in agricultural practices

Posted by Michelle:

I came across a policy discussion relating to nutrients (primarily N) in agricultural processes. The original article appeared in Science in June, with responses in the most recent issue (30 October 2009). The idea of reclaiming N in human waste for agriculture is not new, but obviously a topic that makes people uncomfortable. I had not realized that in urban centers alone, the N in human waste is equal to the amount of N fixed for agricultural purposes. What follows then is the problem of distribution, in other words, how do we get urban N to agricultural areas? Talk about recycling!

http://www.sciencemag.org/cgi/content/full/326/5953/665-a?sa_campaign=Email/toc/30-October-2009/10.1126/science.326_665a

Stoichiometry jobs! (well, RA-ships actually)

Posted by Jim:

I don’t usually do job ads on the blog, but this came in from Amy Rosemond (Univ of Georgia) and I thought I would post it here.

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Five graduate student assistantships (3 Ph.D. and 2 M.S.) are available as part of a newly funded project examining the responses of detritus-based stream food webs to concentrations and ratios of dissolved nitrogen and phosphorus. Two Ph.D. positions will be based at the University of Georgia and will focus on detrital carbon dynamics and responses of predatory salamanders, respectively. A third Ph.D. position will be based at the University of Alabama and will examine macroinvertebrate food web responses. Both M.S. positions will be based at Coastal Carolina University and will focus on microbial responses to N:P gradients using field and laboratory experiments. All fieldwork will be based at the Coweeta Long term Ecological Research site in Otto, North Carolina. We are looking for students with a holistic view of ecological ramifications of nutrient enrichment, strong interest in integrating a stoichiometric perspective across taxonomic groups, significant research experience and demonstrated communication skills. The positions will start in Summer or Fall 2010, with microbial positions starting as early as January 2010. The successful candidates will receive full tuition waivers and competitive stipends. For more information, contact Amy Rosemond (rosemond@uga.edu) or John Maerz (jmaerz@warnell.uga.edu) for the UGA positions, Jon Benstead (jbenstead@bama.ua.edu) for the UA position, or Vlad Gulis (vgulis@coastal.edu) for the two CCU positions.

 

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Genetic basis of P sensitivity in Daphnia

Wiley InterScience :: JOURNALS :: Ecology Letters.

Posted by Jim:

Our long-time collaborators Puni Jeysasingh, Bob Sterner, and Larry Weider have published a nifty paper showing how the genotype for Pgi (a gene controlling phosphoglucose isomerase, an enzyme involved in energy processing) is closely linked to an animal’s sensitivity to poor stoichiometric food quality (high C:P in algae).  Pgi homozygotes outcompete pgi heterozygotes because they are energetically INEFFICIENT, which is an advantage when food has high C:P ratio (C in excess).  The discovery is quite remarkable, as Pgi has long been used as some kind of “neutral” marker for identifying different populations of Daphnia.  So, it’s quite a coincidence that Pgi seems to be closely involved in how Daphnia copes with poor food quality.

Members of the Elser group should read this paper immediately.