BlogArena

General blog about anything and everything of everyday's life.

18. Oct 2019

May 2, 2013
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Where Does Charcoal, or Black Carbon, in Soils Go?

Scientists find surprising new answers in wetlands such as the Everglades Scientists have uncovered one of nature’s long-kept secrets–the true fate of charcoal in the world’s soils. The ability to determine the fate of charcoal is critical to knowledge of … Continue reading

June 8, 2012
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Where Have All the Hummingbirds Gone?

Glacier lilies and broad-tailed hummingbirds out of sync The glacier lily as it’s called, is a tall, willowy plant that graces mountain meadows throughout western North America. It flowers early in spring, when the first bumblebees and hummingbirds appear. Or … Continue reading

March 31, 2012
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Evolving to Fight Epidemics: Weakness Can Be an Advantage

*Less resistance can sometimes be better than more–at least in a freshwater lake* When battling a deadly parasite epidemic, less resistance can sometimes be better than more, a new study suggests. A freshwater zooplankton species known as Daphnia dentifera endures … Continue reading

March 18, 2012
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Early Spring Drives Butterfly Population Declines

“Ahead-of-time” snowmelt triggers chains of events in the Mormon Fritillary butterfly Early snowmelt caused by climate change in the Colorado Rocky Mountains snowballs into two chains of events: a decrease in the number of flowers, which, in turn, decreases available … Continue reading

February 28, 2012
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Coyotes “Shrank,” Wolves Did Not, After Last Ice Age and Megafaunal Extinctions

*Once large and wolf-like, coyotes ultimately became much smaller* When the last ice age ended more than 10,000 years ago, many large species of mammals went extinct and others underwent changes in appearance. But what caused evolutionary changes to take place … Continue reading

January 4, 2012
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Prehistoric Predators with Supersized Teeth Had Beefier Arm Bones

*Combination of colossal canines and forceful forelimbs arose repeatedly over time* The toothiest prehistoric predators also had beefier arm bones, according to results of a study published today in the journal Paleobiology. Saber-toothed tigers may come to mind, but these … Continue reading

December 19, 2011
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Acid Rain Poses a Previously Unrecognized Threat to Great Lakes Sugar Maples

ANN ARBOR, Mich.— The number of sugar maples in Upper Great Lakes forests is likely to decline in coming decades, according to University of Michigan ecologists and their colleagues, due to a previously unrecognized threat from a familiar enemy: acid … Continue reading