ScienceDaily: Top Environment News

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• Tracking atlantic bluefin tuna shows migration secrets
• Civil engineers find savings where the rubber meets the road: Stiffer roads reduce fuel consumption
• For monogamous sparrows, it doesn't pay to stray (but they do it anyway)
• New means of safeguarding world fish stocks
• Volcanic island of Santorini displaying signs of unrest
• How Twitter is used to share information after a disaster
• Does polyploidy play a role in the onset of the Italian endemic flora?
• New frog species from Panama dyes fingers yellow
• Archaeology: Spectacular tomb containing more than 80 individuals discovered in Peru
• Marine aquarium fish trade study reveals fewer fish, more species imported than previously estimated
• Richer parasite diversity helps protect frogs from viruses that cause malformed limbs
• Modern dog breeds genetically disconnected from ancient ancestors

Tracking atlantic bluefin tuna shows migration secrets Posted: 22 May 2012 02:54 PM PDT New fish-tagging studies of young bluefin tuna in the Atlantic off New England are offering the first fishery-independent, year-round data on dispersal patterns and habitat use for the popular game fish. Miniaturized pop-up satellite tags suitable for smaller fish helped make the research possible.

Civil engineers find savings where the rubber meets the road: Stiffer roads reduce fuel consumption Posted: 22 May 2012 01:14 PM PDT Pavement deflection under vehicle tires makes for a continuous uphill drive that increases fuel consumption, new research shows. A new study by civil engineers at MIT shows that using stiffer pavements on the nation's roads could reduce vehicle fuel consumption by as much as 3 percent — a savings that could add up to 273 million barrels of crude oil per year, or $15.6 billion at today's oil prices. This would result in an accompanying annual decrease in CO2 emissions of 46.5 million metric tons.

For monogamous sparrows, it doesn't pay to stray (but they do it anyway) Posted: 22 May 2012 12:26 PM PDT It's quite common for a female song sparrow to stray from her breeding partner and mate with the male next door, but a new study shows that sleeping around can be costly.

New means of safeguarding world fish stocks Posted: 22 May 2012 10:50 AM PDT Powerful and versatile new genetic tools will assist in safeguarding both European fish stocks and European consumers. A new article details the first system shown to identify populations of fish species to a forensic level of validation.

Volcanic island of Santorini displaying signs of unrest Posted: 22 May 2012 08:50 AM PDT Archived data from the Envisat satellite show that the volcanic island of Santorini has recently displayed signs of unrest. Even after the end of its mission, Envisat information continues to be exploited for the long-term monitoring of volcanoes.

How Twitter is used to share information after a disaster Posted: 22 May 2012 08:50 AM PDT A new study shows how people used Twitter following the 2011 nuclear disaster in Japan, highlighting challenges for using the social media tool to share information. The study also indicates that social media haven't changed what we communicate so much as how quickly we can disseminate it.

Does polyploidy play a role in the onset of the Italian endemic flora? Posted: 22 May 2012 08:49 AM PDT Plants show a higher variation in chromosome numbers than animals do, mainly because of polyploidy -- the occurrence of more than two sets of chromosomes. In plants, polyploidy can cause reproductive isolation and the consequent onset of new species. Researchers now set out to estimate to what extent polyploidy is involved in the onset of the Italian endemic plants.

New frog species from Panama dyes fingers yellow Posted: 22 May 2012 08:49 AM PDT Biologists have discovered a new, beautiful golden frog species in western Panama. The frog that hides in very dense vegetation has attracted the scientists' attention when they first heard the characteristic call emitted by the males.

Archaeology: Spectacular tomb containing more than 80 individuals discovered in Peru Posted: 22 May 2012 08:46 AM PDT Archaeologists have discovered a spectacular tomb containing more than eighty individuals of different ages. This discovery – provisionally dated to around 1000 years ago – was made at the site of Pachacamac.

Marine aquarium fish trade study reveals fewer fish, more species imported than previously estimated Posted: 22 May 2012 08:03 AM PDT As the popularity of marine aquariums rises, so does the demand for wildlife inhabiting them. Most aquarium fish are harvested from their natural habitats -- primarily coral reefs -- and imported into the United States by the millions annually.

Richer parasite diversity helps protect frogs from viruses that cause malformed limbs Posted: 21 May 2012 01:38 PM PDT Increases in the diversity of parasites that attack amphibians cause a decrease in the infection success rate of virulent parasites, including one that causes malformed limbs and premature death, says a new study.

Modern dog breeds genetically disconnected from ancient ancestors Posted: 21 May 2012 01:38 PM PDT Cross-breeding of dogs over thousands of years has made it extremely difficult to trace the ancient genetic roots of today's pets, according to a new study.

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