Tag Archives: variable

Vines add surprising variable to tropical forest carbon storage

New study shows lianas dramatically reduce carbon sequestration by crowding out, killing trees

Just when we thought we were getting closer to understanding tropical forests’ tremendously valuable service of sucking carbon from the air and socking it away in tree trunks and other biomass, along comes a new variable: woody vines. (more…)

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Back to the Future: A New Science for a Changing Planet

In a world that is changing on a global scale and faster than ever before, science should rediscover its roots of observing the natural world unimpeded by the strict protocols of experimental manipulations, UA ecologist Rafe Sagarin and co-author Aníbal Pauchard suggest in their book, “Observation and Ecology.”

Mars rover Curiosity is doing it. School children strolling through the woods with binoculars are doing it. Charles Darwin was doing it. Observing the natural world around them was how the early naturalists started what would later become known as ecology – the science of how living things interact, depend on each other and how their habitats and communities change over time.

In their book, “Observation and Ecology,” ecologists Rafe Sagarin and Aníbal Pauchard make the case that if scientists are to tackle the enormously complex problems the world is facing, researchers and funding agencies have to leave their comfort zone of well-controlled experimental manipulations. (more…)

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Study Shows How The Brain Responds To Deceptive Advertising

Several specific regions of our brains are activated in a two-part process when we are exposed to deceptive advertising, according to new research conducted by a North Carolina State University professor. The work opens the door to further research that could help us understand how brain injury and aging may affect our susceptibility to fraud or misleading marketing.

The study utilized functional magnetic resonance imaging (fMRI) to capture images of the brain while study participants were shown a series of print advertisements. The fMRI images allowed researchers to determine how consumers’ brains respond to potentially deceptive advertising. “We did not instruct participants to evaluate the ads. We wanted to mimic the passive exposure to advertising that we all experience every day,” says Dr. Stacy Wood, Langdon Distinguished Professor of Marketing at NC State and co-author of a paper describing the research. (more…)

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