News tagged with drift

Bees that go 'Cuckoo' in others' nests

The biota of island archipelagos is of considerable interest to biologists. These isolated areas often act as 'evolutionary laboratories', spawning biological diversity rapidly and permitting many mechanisms ...

Aug 30, 2012
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Toward a better understanding of earthquakes

The earth is shaken daily by strong earthquakes recorded by a number of seismic stations worldwide. Tectonic tremor, however, is a new type of seismic signal that seismologist started studying only within ...

Jul 05, 2012
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Interacting mutations promote diversity

Genetic diversity arises through the interplay of mutation, selection and genetic drift. In most scientific models, mutants have a fitness value which remains constant throughout. Based on this value, they compete with other ...

Jun 28, 2012
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Plate tectonics coming of age

(PhysOrg.com) -- Plate tectonics in its current form is believed to have started one billion years ago. A study of two billion year old rocks from African gold mines has now shown that the same process of ...

Nov 24, 2011
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Sand drift explained

Researchers in countries such as Denmark, the Netherlands and Poland study sand drift, but most of them are focusing on sand dunes along the coastline, not on the plains further inland.

Apr 07, 2011
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Trimming the Tree of Life

(PhysOrg.com) -- In a sense, Antonis Rokas is an arborist: He is a member of a small cadre to scientists who are applying the growing power of genomics to untangle and correctly arrange the branches of the ...

Oct 08, 2009
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Study explores effects of herbicide drift on white oak

Herbicide drift, which occurs when pesticides "drift" from the targeted application area to a nearby non-targeted area, is a particular concern in Midwestern regions of the United States. In the Midwest, where the topography ...

Mar 25, 2009
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