Navigation Links
Tree resin the key evidence of current and historic insect invasions
Date:3/22/2011

A University of Alberta-led research team has discovered that insects that bore into trees as long ago 90 million years, or as recently as last summer, leave a calling card that's rich with information.

The information is contained in the resin found within trees and on their bark. Resin is produced in large quantities by a tree when it's under attack by insects.

Normally, to assess if a tree is under an attack from boring insects researchers have sometimes had to rip patches of bark from healthy trees. But now forestry workers looking for the telltale sign of insect borings in tree trunks have a far less invasive methodthey can just examine the resin that collects in clumps on the tree trunk.

An attack by boring beetles typically affects trees in two ways. The boring action damages the phloem layer just under the bark, which cuts off the passage of nutrients within the trunk. Also, beetles often introduce a fungus that spreads into the woody xylem tissue of the tree and starves the treetop of water. A side-effect of insect invasion and water stress is a reduction in the tree's ability to absorb carbon dioxide from the atmosphere. Carbon dioxide is necessary for life-sustaining photosynthesis.

The research team, including U of A paleontology graduate student Ryan McKellar, looked for subatomic-sized isotopic evidence that indicates water stress levels in trees as a result of an insect attack.

The team discovered a common marker in carbon isotopes found in the resin of living trees under insect attack and in the fossilized resin or amber produced by ancient trees going as far back as the age of dinosaurs: they both contain elevated levels of carbon-13.

McKellar's group also found evidence of boring beetles and the increased presence of carbon-13 within amber fossils dating back in the geological record to 90 million and 17 million years ago. The locations are as geographically removed as present-day New
'/>"/>

Contact: Brian Murphy
brian.murphy@ualberta.ca
780-492-6041
University of Alberta
Source:Eurekalert

Page: 1 2

Related biology news :

1. Further research needed to develop evidence-based nutrition guidelines for cancer survivors
2. Jefferson researchers provide genetic evidence that antioxidants can help treat cancer
3. Scientists question indicator of fisheries health, evidence for fishing down food webs
4. More evidence that melanoma does not conform to the cancer stem cell model
5. Evidence is weak for tropical rainforest 65 million years ago in Africas low-latitudes
6. New evidence that fat cells are not just dormant storage depots for calories
7. Oldest evidence of dinosaurs found in Polish footprints
8. Researchers find first genetic evidence for loss of teeth in the common ancestor of baleen whales
9. Marine animals suggest evidence for a trans-Antarctic seaway
10. Animal bone markings show evidence that Lucy species used stone tools, ate meat
11. Scientists discover oldest evidence of human stone tool use and meat-eating
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:9/30/2014)... goes wrong with your muscles because of age, disease or ... is. That,s where a new research report published in the ... comes in. In the report, a team of scientists ... help scientists "see" which genes are active in an organ ... activity and that men have approximately 400 more active genes ...
(Date:9/30/2014)... perilous threats in today,s ocean. From overfishing and ... coral ecosystems are disappearing at unprecedented rates around ... corals surrounding the island of Moorea in French ... environment: coral guard-crabs. New research from the National ... Seabird McKeon and the museum,s predoctoral fellow Jenna ...
(Date:9/29/2014)... new study confirms that the exposure to tar tended ... of regular cigarettes. Similarly, exposure to nicotine tended ... popular type of cigarette in several countries around the ... certain toxic chemicals in the smoke of these cigarettes ... lower levels of chemicals in the smoke are not ...
Breaking Biology News(10 mins):Scientists identify which genes are active in muscles of men and women 2Smithsonian scientists discover coral's best defender against an army of sea stars 2Slim cigarette smokers not exposed to more harmful chemicals 2
... function of a newly discovered gene in corn may ... reducing childhood blindness and mortality rates, according to a ... Chair of Translational Genomics and professor of agronomy at ... and particularly orange corn, a type he said likely ...
... of Michigan and Shanghai Jiao Tong University in ... renewable energy and biomedical research projects involving investigators ... renewable-energy program is to develop new technologies that ... climate change. The biomedical collaboration will spur technological ...
... This release is available in French . ... have genetically manipulated rats that can emulate Alzheimer,s disease in ... treatments. Alzheimer,s is a devastating brain condition leading to a ... research mice have been developed in the past, rats are ...
Cached Biology News:Orange corn holds promise for reducing blindness, child death 2U-M joins with Chinese university to jointly fund renewable energy and biomedical research projects 2
(Date:9/30/2014)... , Sept. 30, 2014 Pacific ... 2014 Summary Global Markets Direct,s, ,Pacific ... 2014, provides an overview of the Pacific Northwest ... This report provides comprehensive information on the current ... complete with comparative analysis at various stages, therapeutics ...
(Date:9/30/2014)... (PRWEB) September 30, 2014 Shimadzu ... extensometer, an easy-to-use and highly precise tool for ... with considerable elongation. With 1000-mm maximum movement distance, ... percent for a gauge length of 10 mm. ... measurement accuracy above 50-mm stroke and within +/- ...
(Date:9/30/2014)... (PRWEB) September 30, 2014 Over the ... primarily due to rising R&D budgets and increased acceptance ... fast growing pharmaceutical and biotechnology industries are also catalyzing ... laboratory filtration market is expected to grow at a ... is estimated to be worth $2,532.6 million by 2019. ...
(Date:9/30/2014)... 30, 2014 Follow us on ... each type of cholesterol carrier or lipoprotein in the ... excessive cholesterol levels in the body, especially along the ... heart attack and other cardiovascular disorders. Cardiovascular Diseases (CVD) ... for cholesterol levels on a regular basis, to assess ...
Breaking Biology Technology:Pacific Northwest Biotechnology, LLC - Product Pipeline Review - 2014 2Pacific Northwest Biotechnology, LLC - Product Pipeline Review - 2014 3Shimadzu’s New Long-Travel Extensometer Increases Precision for Soft Material Testing 2Global Laboratory Filtration Market To See 7.0% CAGR to 2019 Says a Research Report Available at ReportsnReports.com 2Global Laboratory Filtration Market To See 7.0% CAGR to 2019 Says a Research Report Available at ReportsnReports.com 3Global Laboratory Filtration Market To See 7.0% CAGR to 2019 Says a Research Report Available at ReportsnReports.com 4Global Laboratory Filtration Market To See 7.0% CAGR to 2019 Says a Research Report Available at ReportsnReports.com 5Surging Diabetic, Obese and Hypertensive Population Drives the Global Cholesterol Testing Market, According to New Report by Global Industry Analysts, Inc. 2Surging Diabetic, Obese and Hypertensive Population Drives the Global Cholesterol Testing Market, According to New Report by Global Industry Analysts, Inc. 3Surging Diabetic, Obese and Hypertensive Population Drives the Global Cholesterol Testing Market, According to New Report by Global Industry Analysts, Inc. 4
... Medicine Project of, Seattle (CHIMPS) Presented at Academic Pediatric Association Conference ... ... CHELMSFORD, Mass., April 22 El Salvador, like many,emerging markets, must ... public concern. This past fall, the El Salvadoran,government threatened to shut ...
... Comprise One of the Main User Groups of febit,s ... Simplified and Automated Microarray Technology, MEDFORD, Mass., and ... will introduce the Geniom RT Analyzer(R) to,the U.S. market at ... Boston., RNA-researchers, one of the main user groups of ...
... Netherlands and SANTA CLARA, Calif., April 22 /PRNewswire/,-- ... evolving field of molecular,diagnostics, and Agilent Technologies, Inc. ... they intend to collaborate to develop new in-vitro,diagnostic ... agreement in,which Agendia products will continue to be ...
Cached Biology Technology:ESA LeadCare(R) System Used to Identify Salvadoran Children with Lead Poisoning 2ESA LeadCare(R) System Used to Identify Salvadoran Children with Lead Poisoning 3ESA LeadCare(R) System Used to Identify Salvadoran Children with Lead Poisoning 4febit to Introduce Geniom RT Analyzer(R) to U.S. Market at RNAi World Congress 2febit to Introduce Geniom RT Analyzer(R) to U.S. Market at RNAi World Congress 3Agendia and Agilent Announce Plans to Jointly Develop New Diagnostic Tests, Extend Supply Agreement 2Agendia and Agilent Announce Plans to Jointly Develop New Diagnostic Tests, Extend Supply Agreement 3
Polyclonal Antibody to SHPRH...
Rabbit polyclonal to TetR ( Abpromise for all tested applications). Antigen: Synthetic peptide: AQKLGVEQPTLYWHVKNKR, corresponding to amino acids 31 - 49 of TetR...
Biotin anti-mouse Ly-49C/F/I/H...
Peptide-affinity Purified Polyclonal Antibody to Retinoic Acid-Induced 3 (RAI3/RAIG1)...
Biology Products: