Tag: "evolutionary" at biology news
A 'private bandwidth' for communication in bats: Evidence from insular horseshoe bats
...ut to be excellent natural laboratories to explore evolutionary
patterns and processes....
Clones on task serve greater good, evolutionary study shows
...change isnt just a romantic platitude. Its a solid evolutionary
strategy.At least if youre among the creatures that produce scads of genetically identical offspring like microbes, plants or water fleas. These creatures provide a chance to wonder about the clones raised in near-identical environments that turn ou...
Which came first, the moth or the cactus?
...d, and Holland, assistant professor of ecology and evolutionary
biology, spends several months each year observing moths and cacti in the Mexican desert to document why. Holland, whose lab is just a few steps down the hall from his Houston office, jokes that his "real" lab is 1,500 miles away. He's studied seni...
Features of replication suggest viruses have common themes, vulnerabilities
...de retroviruses such as HIV, suggesting a possible evolutionary
link from a common ancestor. ...
New textbook illuminates the close links between evolutionary and molecular biology
...N.Y. In an innovative approach to the subject of evolutionary
biology, a new book, Evolution , combines the con...of genetics and molecular biology with traditional evolutionary
theories to provide an elegant, cohesive view of biology. The book, which was recently released by ...
Proteaceae spread by continental drift and transoceanic dispersal
...wing these scientists to provide age estimates for evolutionary
events in the family. Our results show that ancestors of some of the modern Proteaceae must have crossed the Atlantic and Indian Oceans. Thus, in Africa, for example, the spectacular genus Protea is truly Gondwanan, but 250 species from other genera ...
Weed gave up sex long ago
...mportantmodel for identifying the genetic basis of evolutionary
Macho men are seen as bad choice for long-term love
...tners. It will also advance studies in areas like evolutionary
biology, fertility and genetics and offer new insights for relationship counselling and psychology. Lead author, Dr Lynda Boothroyd, a lecturer with Durham Universitys Department of Psychology, commented: This research shows a high amount of agreem...
Chickadee, nutchatch presence in conifers increases tree growth, says CU-Boulder study
... his doctoral research in CU-Boulder's ecology and evolutionary
biology department, said it is the first study to demonstrate that birds can affect the growth of conifers. "In a nutshell, the study shows that the presence of these birds in pine forests increased the growth of the trees by helping to rid them o...
Coelacanth fossil sheds light on fin-to-limb evolution
..., the first finding of its kind, fills a shrinking evolutionary
gap between fins and limbs. University of Chicago ... as archetypal living fossils, said Matt Friedman, evolutionary
biology graduate student at Chicago and lead author of the paper. But its a common misconception. If...
Genomics study provides insight into the evolution of unique human traits
...ineages spanning approximately 60 million years of evolutionary
time. In the report, which appears online in Gen...ify specific genes and gene families that, through evolutionary
time, have undergone lineage-specific copy number gains and losses. The authors of the report sug...
Strains of laboratory mice more varied than previously thought
...ive analysis of such variation with an emphasis in evolutionary
origin of the variation and its implications for biomedical research. We have rejected many long-held assumptions about the origin and relationships among mouse strains. In the light of our results, the conclusions of previous studies and the design ...
Springer launches Theoretical Ecology
...hysiology, population ecology, behavioral ecology, evolutionary
ecology, ecosystem ecology, community ecology, as well as ecosystem and landscape ecology. Theoretical papers that focus on applied ecological questions will also be featured, for example the development of ecological theory for resolving societal p...
Did pterosaurs feed by skimming?
...erosaur. Big was beautiful for the pterosaur, with evolutionary
trends towards giant sizes. However, Humphries et al. show that the size of these colossal animals would have prevented them from feeding as previously described, as the drag experienced by a pterosaur over a ton would have imposed too great an energ...
Charting ever-changing genomes
... test of time and which parts have undergone rapid evolutionary
change has been difficult to assess. An interna...ed by natural selection or have been so during the evolutionary
past. In an independent study the collaborators -- this time led by Detlef Weigel, Ph.D., director...
Study explains how pathogens evolve to escape detection
...rms race is under way in the plant world. It is an evolutionary
battle in which plants are trying to beef up their...is paper provides molecular data that supports the evolutionary
'arms race' theory" that as pathogens develop new ways to spread and attack organisms, the organisms...
Assessing levies for by-catch could fund conservation measures
...of the paper and a graduate student in ecology and evolutionary
biology at Cornell. "Once you add in the cost of doing conservation, this is a win-win situation for a lot of endangered seabirds and sea turtles that are impacted by fisheries' by-catch." Donlan and co-author Chris Wilcox, a senior research scientis...
Species detectives track unseen evolution
...distinct mating groups are the only way to spot an evolutionary
splinter group from their look-alike cousins, introducing uncertainty to biodiversity estimates globally. Markus Pfenninger and Klaus Schwenk searched the Zoological Record database (1978-2006) to pinpoint reports of hidden (cryptic) species both b...
Study identifies energy efficiency as reason for evolution of upright walking
...energy cost of walking upright would have provided evolutionary
advantages by decreasing the cost of foraging. For decades now researchers have debated the role of energetics and the evolution of bipedalism, said Raichlen. The big problem in the study of bipedalism was that there was little data out there. T...
What determines the speed at which birds fly?
..., but also reflects functional constraints and the evolutionary
lineage of the species in question. The authors...t speeds for larger birds. They also show that the evolutionary
history of the species helps explain much of the variation in flight speed: species of the same grou...
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