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Tag: "trees" at biology news

Scientists discuss improved biopesticides for locust control in West Africa

...a. Last year, locusts stripped fields of crops and trees of foliage across several countries, causing severe income and food supply loss. Larry Vaughan, associate program director of the USAID-funded Integrated Pest Management Collaborative Research Support Program (IPM CRSP) and research associate in the...

Family trees of ancient bacteria reveal evolutionary moves

... Blank is able to draw her hypothesis from family trees she is drawing of Cyanobacteria. Her observations are likely to incite debate among biologists and geologists studying one of Earth's most controversial eras ?approximately 2.1 billion years ago, when cyanobacteria first arose on the Earth. This was ...

World's largest rainforest drying experiment completes first phase

...nged dry seasons was depleted in the dry plot, the trees simply absorbed water from deeper in the soil with...the end of the five-year period of exclusion, many trees in the forest were drawing in water from more than 40 feet deep in the soil. Second, it was anticip...

Falling ants glide back to trunk to avoid dangers of forest floor

...sing ropes and cave-climbing equipment, he ascends trees and collects mosquito larvae from water-filled tree cavities and also collects adult females who've had a recent meal of blood ?his own. He and Dudley are applying for grants to do a more systematic survey to see how common gliding is among the hund...

New research indicates a 'troubled' greenhouse is brewing

...nd," Retallack says. "Turtles, alligators and palm trees graced Ellesmere Island in the Canadian Arctic, which is now the treeless abode of musk oxen and polar bears." The bottom line? A new Ice Age is probably the least of our worries. "Frostbite and snow-blindness are less likely to be in our future th...

Experiments provide proof of how traveling in groups protects insects

...h said. Researchers retrieved several devices from trees and burrows. Two were lost entirely and, presumably because Mormon crickets can't fly, carried off a long way by birds and out of radio receiver range. "What this new work appears to show is that even though being part of the band has its own costs ...

Experiments provide proof of how traveling in groups protects insects

...h said. Researchers retrieved several devices from trees and burrows. Two were lost entirely and, presumably because Mormon crickets can't fly, carried off a long way by birds and out of radio receiver range. "What this new work appears to show is that even though being part of the band has its own costs ...

Poplar trees redirect resources in response to simulated attack

...g to track the distribution of nutrients in poplar trees in response to a simulated insect attack. The rese...various types of stress, onto the leaves of poplar trees in a closed chamber. They then administered carbon dioxide gas "labeled" with radioactive carbon-11 ...

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