Navigation Links
Redwood trees reveal history of West Coast rain, fog, ocean conditions
Date:10/29/2013

Many people use tree ring records to see into the past. But redwoods the iconic trees that are the world's tallest living things have so far proven too erratic in their growth patterns to help with reconstructing historic climate.

A University of Washington researcher has developed a way to use the trees as a window into coastal conditions, using oxygen and carbon atoms in the wood to detect fog and rainfall in previous seasons.

"This is really the first time that climate reconstruction has ever been done with redwoods," said Jim Johnstone, who recently completed a postdoctoral position at the UW-based Joint Institute for the Study of the Atmosphere and the Ocean. He is corresponding author of a study published online Oct. 24 in the Journal of Geophysical Research-Biogeosciences.

While coastal redwoods are not the longest-lived trees on the West Coast, they do contain unique information about their foggy surroundings. "Redwoods are restricted to a very narrow strip along the coastline," Johnstone said. "They're tied to the coastline, and they're sensitive to marine conditions, so they actually may tell you more about what's happening over the ocean than they do about what's happening over land."

The new study used cores from Northern California coastal redwoods to trace climate back 50 years. Weather records from that period prove the method is accurate, suggesting it could be used to track conditions through the thousand or more years of the redwoods' lifetime.

Tree-ring research, or dendrochronology, typically involves a detailed look at a cross-section of a tree trunk. But the rings of a redwood are uneven and don't always fully encircle the tree, making it a poor candidate for anything except detecting historic fires. The new paper uses a painstaking approach that's more like processing ice cores. It uses the molecules captured in the wood to sample the atmosphere of the past.

Most oxygen in Earth's atmosphere has an
'/>"/>

Contact: Hannah Hickey
hickeyh@uw.edu
206-543-2580
University of Washington
Source:Eurekalert

Page: 1 2

Related biology news :

1. Protecting living fossil trees
2. Mesquite trees displacing Southwestern grasslands
3. Chimpanzee ground nests offer new insight into our ancestors descent from the trees
4. Handful of heavyweight trees per acre are forest champs
5. Beetle-fungus disease threatens crops and landscape trees in Southern California
6. The millennium-old olive trees of the Iberian Peninsula are younger than expected
7. Beetle-infested pine trees contribute more to air pollution and haze in forests
8. New report examines effects of trees killed by bark beetles on wildfire
9. Dying trees in Southwest set stage for erosion, water loss in Colorado River
10. Rodent robbers good for tropical trees
11. Have thieving rodents saved tropical trees?
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:9/29/2014)... of Texas at Arlington research team says recently identified ... their lab could open doors for homeland security and ... in the Oct. 1 issue of Optics Letters ... co-authors describe a new method to fabricate transparent nanoscintillators ... until a transparent ceramic is formed. A scintillator ...
(Date:9/29/2014)... University have concluded that nondigestible compounds in apples ... prevent disorders associated with obesity. The study, thought ... in apple cultivars grown in the Pacific Northwest, ... Food Chemistry ., "We know that, in ... nondigestible compounds but there are differences in varieties," ...
(Date:9/29/2014)... scientists have found compounds that boost liver detoxification enzymes ... unlikely placethe crushed seeds left after oil extraction from ... bioactive compounds in Camelina sativa seed, also ... of phytochemicals that work together synergistically far better than ... nutritional supplement because its bioactive ingredients increase the liver,s ...
Breaking Biology News(10 mins):UT Arlington researchers develop new transparent nanoscintillators for radiation detection 2UT Arlington researchers develop new transparent nanoscintillators for radiation detection 3An apple a day could keep obesity away 2New way to detox? 'Gold of Pleasure' oilseed boosts liver detoxification enzymes 2
... Society for Microbiology (ASM) sanofi-aventis ICAAC Award will ... of Oxford, United Kingdom and Mahidol University, Bangkok, ... Units, Bangkok. Supported by sanofi-aventis, the award ... of new agents, investigation of antimicrobial action or ...
... for Microbiology (ASM) ICAAC Young Investigator Award will be ... Texas A & M University, College Station. Sponsored by ... scientists for research excellence in microbiology and infectious diseases. ... pathogen, has a defined sexual cycle with two mating ...
... -- Engineers at Ohio State University have found a way ... someday replace gasoline in automobiles. The process improves on ... tank. Normally, bacteria could only produce a certain amount ... every liter of water in the tank -- before the ...
Cached Biology News:Researchers boost production of biofuel that could replace gasoline 2
(Date:9/30/2014)... 30, 2014 The custom stainless steel ... Product Show 2014. The Boston Area Chapter of ISPE ... annual, day-long event for Wed., Oct. 1 at Gillette ... be the largest in ISPE Boston’s long history, with ... 3,000 attendees expected. , HOLLOWAY AMERICA President David ...
(Date:9/30/2014)... UFP Technologies, a producer of ... recently introduced a custom insulated shipping container to ... new insulated shipper solves the issue of temperature ... Technologies’ BioShell is a universal storage container which ... and shipping. The insulated shipper keeps frozen BioShells ...
(Date:9/29/2014)... forefront of diagnostics today, with imaging techniques like ... and NMR (nuclear magnetic resonance) increasing steeply over ... image resolution and quality still limit these techniques ... solution is hyperpolarization, which involves injecting the patient ... following the distribution and fate of specific molecules ...
(Date:9/29/2014)... in food security, emerging diseases and biodiversity loss ... online in Science Express that was ... Arizona College of Agriculture and Life Sciences. , ... nine scientists has reviewed progress in addressing a ... environmental management using approaches that consider evolutionary histories ...
Breaking Biology Technology:HOLLOWAY AMERICA to Exhibit at ISPE Boston Product Show 2014 2HOLLOWAY AMERICA to Exhibit at ISPE Boston Product Show 2014 3UFP Technologies Introduces Insulated Shipping Container For Bulk Drug Transportation 2UFP Technologies Introduces Insulated Shipping Container For Bulk Drug Transportation 3A safer approach for diagnostic medical imaging 2A safer approach for diagnostic medical imaging 3Evolutionary biology: It's not just for textbooks anymore 2Evolutionary biology: It's not just for textbooks anymore 3
... 4 Wyeth (NYSE: WYE ),announced today ... 2008 Global,Pharmaceutical, Biotechnology and Medical Device Conference on ... Presenting for Wyeth will be,Geno Germano, President, U.S. ... presentation will be webcast live for investors at, ...
... Technologies, Inc.,(Nasdaq: EMIS ), a biopharmaceutical company that ... using its eligen(R) technology,today announced that the company will ... 12, 2008 at the Waldorf Astoria Hotel in New ... Officer of,Emisphere, will present for the company at 2:45 ...
... Calif., Feb. 4 AMDL, Inc. (Amex:,ADL), ... Shenzhen,Jiangxi, and Jilin, China, through its wholly ... international biopharma company that,together with Jade, engages ... pharmaceutical, health care and diagnostic products. The,Company ...
Cached Biology Technology:Wyeth to Present at the Merrill Lynch 2008 Global Pharmaceutical, Biotechnology and Medical Device Conference 2Emisphere Technologies to Present at BIO CEO & Investor Conference on February 12 2AMDL Receives a Significant Updated Appraisal of Its JJB China Production Facilities 2
MiniCycler thermal cycler with Hot Bonnet heated lid, holds 25x0.2ml tubes...
... Leu-CMK FLISP Assay with SR-101 ... Em=620 nm) • Accurately measure serine ... or permeabilization • B-Bridge's FLISP Kits ... serine proteases (FLISPs) to measure chymotrypsin-like ...
... conjunction with your existing apoptosis protocols. Grow your ... your existing procedure (also reserve a non-induced population ... have induced apoptosis in your cells, add the ... the cells for an additional 15 minutes. During ...
... The biolistic PDS-1000 He system ... gas to accelerate micron-size nucleic acid-coated ... necessary to transfect cells, tissues, or ... the cell surface. The system includes ...
Biology Products: