News tagged with unwanted species
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Ecological speciation by sexual selection on good genes: Is speciation adaptive?
Nov 26, 2009 |
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Darwin suggested that the action of natural selection can produce new species, but 150 years after the publication of his famous book, 'On the Origin of Species', debate still continues on the mechanisms of speciation. New ...
How can scientists measure evolutionary responses to climate change?
22 hours ago |
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As global temperatures continue to rise scientists are presented with the complex challenge of understanding how species respond and adapt. In a paper published in Insect Conservation and Diversity, Dr Francisco Rodriguez-Trelles and Dr ...
Artificial refuges created to save the reptiles of Doņana
21 hours ago |
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The Aznalcóllar mining accident more than 11 years ago, which contaminated part of the Doņana National Park, also damaged reptile habitat there. Now a team of Spanish researchers, who have been studying ...
Ecologists sound out new solution for monitoring cryptic species
Nov 27, 2009 |
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Ecologists have at last worked out a way of using recordings of birdsong to accurately measure the size of bird populations. This is the first time sound recordings from a microphone array have been translated into accurate ...
Scientists trace shark fins to their geographic origin for first time using DNA tools
3 hours ago |
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Millions of shark fins are sold at market each year to satisfy the demand for shark fin soup, a Chinese delicacy, but it has been impossible to pinpoint which sharks from which regions are most threatened ...
Venomous Aussie redback spiders invading Japan
Nov 25, 2009 |
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Australia's venomous redback spiders are on the march in Japan, where they are believed to have arrived years ago as stowaways on cargo ships, a wildlife expert warned Wednesday.
Asian carp may have breached barrier protecting Lake Michigan
Nov 24, 2009 |
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Two feared species of Asian carp have zoomed beyond the $9 million electric barriers built to keep them out of Lake Michigan. Now, the only thing left between the carp and the Great Lakes is a lock and dam in southern Chicago.
Cells defend themselves from viruses, bacteria with armor of protein errors
Nov 25, 2009 |
5 / 5 (7) |
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When cells are confronted with an invading virus or bacteria or exposed to an irritating chemical, they protect themselves by going off their DNA recipe and inserting the wrong amino acid into new proteins to defend them ...
Wide heads give hammerheads exceptional stereo view
Nov 27, 2009 |
4.6 / 5 (8) |
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Hammerhead sharks are some of the Ocean's most distinctive residents. 'Everyone wants to understand why they have this strange head shape,' says Michelle McComb from Florida Atlantic University. One possible ...
Rocket science leads to new whale discovery
Nov 24, 2009 |
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Rocket science is opening new doors to understanding how sounds associated with Navy sonar might affect the hearing of a marine mammal - or if they hear it at all.
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