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Latest Phylogenetics Stories

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2008-02-27 09:55:00

A new online Encyclopedia of Life debuted yesterday, but quickly crashed on its first day of operation after its servers were overwhelmed by the high numbers of visitors to the site.  Scientists at the Encyclopedia of Life, which will ultimately contain over 1 million pages devoted to different species of life on Earth, sought advice from experts from the popular Web site Wikipedia, the leading free-content encyclopedia on the Internet.  "We've been overwhelmed by traffic,"...

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2008-02-25 13:05:00

Rapid progress fosters confidence massive project can be done; public asked for its sayThe first 30,000 pages of a massive online Encyclopedia of Life were unveiled today at the prestigious Technology, Entertainment and Design (TED) Conference in Monterey, California. Intended as a tool for scientists and policymakers and a fascinating resource for anyone interested in the living world, the EOL is being developed by a unique collaboration between scientists and the general public. By making...

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2008-02-05 17:40:00

Did modern birds originate around the time of the dinosaurs' demise, or have they been around far longer? The question is at the center of a sometimes contentious "rocks versus clocks" debate between paleontologists, whose estimates are based on the fossil record, and scientists who use "molecular clock" methods to study evolutionary history. A new analysis by researchers at the University of Michigan, the University of Chicago, the Centre for Biodiversity Conservation Mexico and Central...

2007-09-22 03:00:08

By Adl, Sina M Leander, Brian S; Simpson, Alastair G B; Archibald, John M; Et al The new classification of protists from the International Society of Protistologists (Adi et al., 2005) could not apply both the International Code of Botanical Nomenclature and the International Code of Zoological Nomenclature because the two are incompatible. The classification designated one name for each clade where multiple names from different codes had previously existed, traced authorities, and provided...

2007-07-20 06:04:01

By Manos, Paul S Soltis, Pamela S; Soltis, Douglas E; Manchester, Steven R; Et al Abstract.- It is widely acknowledged that integrating fossils into data sets of extant taxa is imperative for proper placement of fossils, resolution of relationships, and a better understanding of character evolution. The importance of this process has been further magnified because of the crucial role of fossils in dating divergence times. Outstanding issues remain, including appropriate methods to place...

2006-11-28 06:00:19

By Yesson, C; Culham, A Abstract.- We investigate the impact of past climates on plant diversification by tracking the "footprint" of climate change on a phylogenetic tree. Diversity within the cosmopolitan carnivorous plant genus Drosera (Droseraceae) is focused within Mediterranean climate regions. We explore whether this diversity is temporally linked to Mediterranean-type climatic shifts of the mid-Miocene and whether climate preferences are conservative over phylogenetic timescales....

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2006-02-21 07:15:00

Arizona -- The Tree of Life is flourishing. The Web-based project, a massive collaboration among scientists from all over the world, is growing more "leaves" and "branches" all the time. The project is basically a genealogy of life on Earth coupled with information about the characteristics of individual species and groups of organisms. Having such scientific data available on the Web makes the information accessible to a wide range of scientists, spurring new collaborations and insights...

2005-09-27 13:50:26

A recent debate over the usefulness and relevance of the widely used Biological Species Concept, based on reproductive isolation, versus the Phylogenetic Species Concept, which is centred around identifying the smallest group with common ancestry, has raised concerns that changing nomenclatural foundations might result in the appearance of previously unrecognized patterns of biodiversity. A recent study, published in the journal Ecography evaluates this suggestion on a continental scale for...

2005-09-08 14:35:00

Human evolution, University of Chicago researchers report, is still under way in what has become our most important organ: the brain. In two related papers, published in the September 9, 2005, issue of Science, they show that two genes linked to brain size are rapidly evolving in humans. "Our studies indicate that the trend that is the defining characteristic of human evolution--the growth of brain size and complexity--is likely still going on," said lead researcher for both papers Bruce...

2005-08-03 15:34:09

How fast a lineage divides may explain why some areas contain more species than others. The Cape of South Africa is one of the most floristically diverse regions on Earth and many species are found nowhere else. There are two broad explanations for high species richness in the Cape: either the Cape represents an old, relatively undisturbed area that has accumulated species richness gradually over time or the recent onset of its Mediterranean-type climate triggered rapid diversification. In a...


Word of the Day
baudekin
  • A rich embroidered or brocaded silk fabric woven originally with a warp of gold thread.
'Baudekin' seems to be an alternative form of 'baldachin,' from the Italian 'Baldacco,' Baghdad, the city where the material was made.
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