Navigation Links
Fossil palm beetles 'hind-cast' 50-million-year-old winters
Date:5/13/2014

Fifty-million-year-old fossil beetles that fed only on palm seeds are giving Simon Fraser University biologists Bruce Archibald and Rolf Mathewes new information about ancient climates.

According to their research, published online this week in The Proceedings of the National Academy of Sciences, these fossil beetles indicate that during a period of global warming in the geological past, there were mild, frost-free winters extended even in the uplands of ancient western North America.

Working with co-authors Geoffrey Morse of the University of San Diego, California, and David Greenwood of Manitoba's Brandon University, researchers used fossil beetles to determine winter temperatures where they couldn't place a thermometerin the 50-million-year-old uplands of British Columbia and Washington.

The key to their study was finding a particular group of beetles that only feed on palms.

"The natural distribution of palms is limited today to regions without significant frost days, which their seeds and seedlings can't survive," Archibald explains. "A cooler upland with palms indicates a specific climate type, where a temperate average yearly temperaturerather like Vancouver todayhad warmer winters where palms can complete their lifecycles."

But since detecting palm fossils is difficult, the research duo developed a new technique they used the beetle fossils to test for the palms' presence.

Understanding more about these temperate, yet mild winter climates by looking to the deep past may help show how natural communities are impacted by climate change, says Archibald. "We see this happening today in significant wayswarm the winters a little, and you get big changes, such as the explosion of mountain pine beetle populations that strongly affect forests and the people and economies that depend on them.

"Using the fossil record to understand climates of the deep past that had significa
'/>"/>

Contact: Bruce Archibald
sba48@sfu.ca
778-782-9017
Simon Fraser University
Source:Eurekalert

Page: 1 2

Related biology news :

1. Protecting living fossil trees
2. Dinosaur fossil: Even specialized predators didnt turn down free meals
3. Seismic zones, river deltas, landslides, fossil reptiles, and more new Geology science
4. Buy coal? New analysis shows purchasing fossil fuel deposits best way to fight climate change
5. Anthropologist finds explanation for hominin brain evolution in famous fossil
6. Ancient giant turtle fossil revealed
7. Scientists find gold-plated fossil solution
8. Human-like spine morphology found in aquatic eel fossil
9. Work starts on fossil fuel free cargo ship set to transform shipping industry
10. Fossil turtle from Colombia round like car tire
11. Fossil egg discovered in Lleida (Spain) links dinosaurs to modern birds
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:12/17/2014)... Dec. 16, 2014 Research and Markets ... of the "Global Chemical Sensor Market 2015-2019" ... http://photos.prnewswire.com/prnh/20130307/600769 One major ... demand for medical sensors in biomedical applications. Chemical ... quick and correct diagnosis during surgical procedures. The ...
(Date:12/15/2014)... Dec. 12, 2014 Research and Markets ... of the "Global Facial Recognition Market 2015-2019" ... http://photos.prnewswire.com/prnh/20130307/600769 Facial recognition ... individuals. Facial recognition system measures the overall facial ... edges, mouth, and the distance between eyes. Facial ...
(Date:12/11/2014)... 2014 Research and Markets ... ( http://www.researchandmarkets.com/research/9ql3kr/biometrics_market ) has announced the addition of ... report to their offering. One ... adoption of multimodal biometric systems. Multimodal biometric systems ... for verification and identification purposes. This helps to ...
Breaking Biology News(10 mins):Global Chemical Sensor Market 2015-2019: Key Vendors are Abbott Laboratories, Bayer, Hoffmann La-Roche, Johnson & Johnson, NGK Spark Plugs and Robert Bosch 2Global Facial Recognition Market 2015-2019: Key Vendors are 3M Cogent, Cognitec Systems, NEC and Safran Group 2Global Facial Recognition Market 2015-2019: Key Vendors are 3M Cogent, Cognitec Systems, NEC and Safran Group 3Biometrics Market in India 2015-2019: Key Vendors are 3M Cogent, NEC, Safran and Suprema 2
... are spiritual, according to new research from Rice University. Though ... that spirituality is a separate idea one that more ... The research will be published in the June ... in-depth interviews with 275 natural and social scientists at elite ...
... human fungal infections caused by certain strains of Aspergillus ... treatments at an alarming rate, say scientists. University of ... a new test that can not only better diagnose ... resistance to azoles the class of drugs used to ...
... at Sam Houston State University and the University of Texas ... justice system in Houston to establish protocols to determine when ... , "This is a problem-solving project that seeks to determine ... William Wells, who is leading the research project at Sam ...
Cached Biology News:More than 20 percent of atheist scientists are spiritual 2Drug-resistance fears for deadly fungal disease 2Research to target untested rape kits 2Research to target untested rape kits 3
(Date:12/19/2014)... In contrast to traditional LED lights ... colors, Valoya uses proprietary LED technology to incorporate their ... uniformity which is critical in low proximity installations. The ... throughout its lifetime which is up to four times ... "The investment cost was clearly higher when compared to ...
(Date:12/19/2014)... MILLBROOK, N.Y. , Dec. 18, 2014 Egenix, ... has been elected Chairman of the Board, to succeed ... President and CEO, but will continue as a member of ... that he has added to the company over almost twenty ... The Board of Directors has established a Search ...
(Date:12/17/2014)... Based on the revenues gained from surgical ... dominated by four major players contributing to approximately ... include GE Healthcare (U.K.), Siemens AG (Germany), Philips ... Report Copy at http://www.marketsandmarkets.com/Market-Reports/surgical-imaging-market-210534462.html , The ... to its strong product portfolio, which includes its ...
(Date:12/17/2014)... CA (PRWEB) December 17, 2014 Once ... to provide a larger packaged waste water treatment plant ... King Abdullah Economic City (KAEC). Two years ago Bioshaft ... Jeddah Gate Development, serving two residential towers with an ... is over a quarter million gallons per day and ...
Breaking Biology Technology:Global Refurbished Surgical Imaging Market by Product & Application is Estimated to Reach $1.25 Billion by 2019 - New Research Report by MarketsandMarkets 2Global Refurbished Surgical Imaging Market by Product & Application is Estimated to Reach $1.25 Billion by 2019 - New Research Report by MarketsandMarkets 3Global Refurbished Surgical Imaging Market by Product & Application is Estimated to Reach $1.25 Billion by 2019 - New Research Report by MarketsandMarkets 4
... have another chance to strengthen ties with Japan at ... Center. , ,Sponsored by the Japan External Trade ... an inside look into how Wisconsin biotech companies are ... traveled to Japan will talk about the difficulties and ...
... are available 24 hours a day now that a new ... , ,The Web site MusicMadeInMadison.com plays more than ... the Profits, Daedalus Burn, Infinite Helix and They Drive By ... site's goal is to help both the circulation of the ...
... and Human Services Secretary Mike Leavitt announced yesterday that ... will be formed to make recommendations for a nationwide ... , ,This news makes the Digital Healthcare Conference ... 9 at the Fluno Center in Madison, even more ...
Cached Biology Technology:Wisconsin biotechs plan Japan trade mission 2Preview: Electronic health records, tech choices explored at Digital Healthcare Conference 2Preview: Electronic health records, tech choices explored at Digital Healthcare Conference 3
Request Info...
...
...
... purified Formulation: 50mM Tris-HCl, pH ... 0.2mM PMSF, 1mM benzamidine, 0.1% ... PP2A1 (Protein Phosphatase 2A1) partially ... sulfate precipitation, QSepharose,amino-hexyl agarose, Superdex ...
Biology Products: