Navigation Links
Putting the dead to work
Date:1/14/2011

entify the significant impact knowledge of fossil life can have on interpreting modern biodiversity and ecological trends."

Ancient DNA, for example, has been used to show that the arctic fox (Alopex lagopus) was not able to move with shifting climates as its range contracted, eventually becoming extinct in Europe at the end of the Pleistocene.

However, the species persisted in regions of northeastern Siberia where the climate was still suitable for arctic foxes.

In another tale from the beyond, fossil evidence suggests that the birds of the Hawaiian Islands suffered large-scale extinctions around the time of the arrival of the Polynesians.

Studies comparing the ecological characteristics of bird species before and after these extinctions reveal a strong bias against larger-bodied and flightless, ground-nesting species.

The pattern suggests that hunting by humans played a role in the extinction of the flightless species.

By the 18th century, the time of the first Europeans' arrival in the islands, most large-bodied birds had already disappeared. European colonization of the islands led to a second wave of exctinctions.

Those birds that survived had traits that helped them weather two onslaughts.

In their review paper, Dietl and Flessa cite a study of the frequency in the fossil record of insect damage to flowering plant leaves in the Bighorn Basin of Wyoming dating from before, during and after the Paleocene-Eocene Thermal Maximum (PETM, some 55.8 million years ago).

The PETM, scientists believe, is one of the best deep-time analogs for current global climate change questions.

Results from the insect research suggest that herbivory intensified during the PETM global warming episode.

"This finding provides insights into how the human-induced rise in atmospheric carbon dioxide is likely to affect insect-plant interactions in the long run," the authors write, "which is di
'/>"/>

Contact: Cheryl Dybas
cdybas@nsf.gov
703-292-7734
National Science Foundation
Source:Eurekalert  

Page: 1 2 3

Related biology news :

1. Putting a bulls-eye on the flu: Paper details influenzas structure for future drug targeting
2. Putting on the pounds after weight loss? Hit the gym to maintain health gains
3. By putting a ring on it, microparticles can be captured
4. Putting bacterial antibiotic resistance into reverse
5. Thrill-seeking holiday-makers are putting dolphins at risk
6. Thrill-seeking holidaymakers are putting dolphins at risk
7. Americans want Uncle Sams help putting healthy foods on their dinner table
8. Putting limits on vitamin E
9. Putting a green cap on garbage dumps
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Putting the dead to work
(Date:9/23/2014)... California , 23 de septiembre de ... lanzamiento del Sistema 1290 Infinity II LC, ... de Infinity en su portafolio de cromatografía ... científicos y directores de laboratorio que alcancen ... excepcional, facilidad de uso y capacidad de ...
(Date:9/22/2014)... A new American Cancer Society study suggests that ... previously known as the food stamp program, had ... non-participants. The authors say the findings emphasize the ... dietary quality of SNAP participants. , The SNAP ... with the resources to obtain a nutritionally adequate ...
(Date:9/22/2014)... also known as tapioca, has large starch-filled roots and ... Asia, and Latin America where corn and sugarcane are ... and processes designed to break down tapioca starch into ... such as glucose, fructose, or maltose syrup, tapioca may ... a Review article in Industrial Biotechnology , a ...
Breaking Biology News(10 mins):Agilent Technologies anuncia el lanzamiento del Sistema 1290 Infinity II LC 2Agilent Technologies anuncia el lanzamiento del Sistema 1290 Infinity II LC 3Federal food program puts food on the table, but dietary quality could be improved 2
... menstruating have a weakening in the quality of their bone ... getting plenty of weight-bearing exercise, a new study finds. The ... Annual Meeting in Boston. "Given the high number of ... fact that up to 24% of young female athletes may ...
... Using the only microscope of its kind in Australia, ... see the inner workings of T-cells, the front-line troops that ... germs and other invaders in our bloodstream. The discovery ... T-cells into action a breakthrough that could lead to ...
... 2011 The International Development Research Centre (IDRC) together with ... Sciences and Engineering Research Council of Canada (NSERC), and ... (SSHRC) today announce that five research teams have been ... International Research Initiative on Adaptation to Climate Change (IRIACC). ...
Cached Biology News:Athletic girls more likely to have impaired bone structure if menstrual cycle stops 2Scientists use super microscope to pinpoint body’s immunity 'switch' 2International research initiative on adaptation to climate change announces research awards 2International research initiative on adaptation to climate change announces research awards 3
(Date:9/23/2014)... Sept. 23, 2014 News Facts ... India devoted to genome-based research for human health ... is taking a bite out of oral cancer with ... in India with the help of ... DataDirect Networks (DDN). , To fuel its cutting-edge cancer ...
(Date:9/23/2014)... , September 23, 2014 ... Closed System Transfer     Devices  (CSTD) ... partnership with Taiwanese distributor MedFront Medical Technology Corporation.  Equashield,s leading ... Taiwan , China ... the company continues to expand globally, and throughout ...
(Date:9/23/2014)... 2014 The Minnesota High Tech ... cellular modems , platforms and application-specific remote ... category for the 2014 Tekne Awards. The ... Minneapolis Convention Center on Thursday, November 13th. The ... have shown superior technology innovation and leadership. ...
(Date:9/22/2014)... DUBLIN , September 22, 2014 ... has announced the addition of the "Global ... offering.      (Logo: http://photos.prnewswire.com/prnh/20130307/600769) ... are added to a system to detect and ... Reagents are generally used in laboratories to prepare, ...
Breaking Biology Technology:National Institute of Biomedical Genomics (NIBMG) Deploys DataDirect Networks Storage to Achieve Significant Performance Improvement in World-Class Genomics Research and Collaboration for Oral Cancer 2National Institute of Biomedical Genomics (NIBMG) Deploys DataDirect Networks Storage to Achieve Significant Performance Improvement in World-Class Genomics Research and Collaboration for Oral Cancer 3National Institute of Biomedical Genomics (NIBMG) Deploys DataDirect Networks Storage to Achieve Significant Performance Improvement in World-Class Genomics Research and Collaboration for Oral Cancer 4National Institute of Biomedical Genomics (NIBMG) Deploys DataDirect Networks Storage to Achieve Significant Performance Improvement in World-Class Genomics Research and Collaboration for Oral Cancer 5Equashield Enters Taiwan Following Expansion to Australia, Japan, China 2NimbeLink Named Finalist for 15th Annual Tekne Awards 2NimbeLink Named Finalist for 15th Annual Tekne Awards 3Global Biotechnology Reagents Market 2014-2018: Key Vendors are Agilent, BD Biosciences, Bio-Rad, F. Hoffmann-La Roche, Sigma-Aldrich and Thermo Fisher 2Global Biotechnology Reagents Market 2014-2018: Key Vendors are Agilent, BD Biosciences, Bio-Rad, F. Hoffmann-La Roche, Sigma-Aldrich and Thermo Fisher 3
... Oconomowoc-based IT services provider, announced Tuesday a new market ... July 1, the campaign will expand the PDS presence ... recently received Specialized Technology Partner Certifications from Cisco in ... partner; IP Communications, IP Communications Express, and Wireless. In ...
... When Hurricane Dennis reached landfall in the Florida ... surprising a development. Weather Central Inc. , a ... almost the exact location two days earlier. , ,On ... a service used by more than 100 television stations ...
... incubates a branding process, which can result in a random ... extreme name identity, whereupon a major advertising process kicks in. ... that's how we refer to today's trendy branding. To avoid ... various branding tricks and become aware of the bigger risks. ...
Cached Biology Technology:Accidental naming 2Accidental naming 3Accidental naming 4
Request Info...
Size & Applications: 100 ul (2 mM). Recommend to use at 1000X dilutions for cell culture (e.g. Add 1 ul to 1 ml of culture medium.) Storage Temp.: -20C Shelf Life: 6-12 month...
in vitro Translation, Accessory Products...
... Origami host strains are K-12 derivatives ... reductase (trxB) and glutathione reductase (gor) genes, ... the cytoplasm. Studies have shown that expression ... than in another host even though overall ...
Biology Products: