Evidence Matters: The Ivory-Billed Woodpecker

Science doesn’t always work this way, but sometimes it does, and it would be good if it did more often.

The phonex had nothing on the ivory-billed woodpecker.
It is hard to keep track of how many times this near-mythic bird, the largest American woodpecker and a poignant symbol of extinction and disappearing forests, has been lost, and then found. Now it is found again.
Even the most skeptical ornithologists now agree. They say newly presented recordings show that at least two of the birds are living in Arkansas
Richard O. Brum, an ornithologist at Yale University and one of several scientists who had challenged the most recently claimed rediscovery of the ivory bill, said Monday after listening to the tape recordings that he was not “strongly convinced that there is at least a pair of ivory bills out there.”
Mark B. Robbins, an ornithologist at the University of Kansas, who had also been a skeptic, listened to the same recordings with a graduate students and said, “We were absolutely stunned.”

James Gorman and Andrew C. Revkin. “Vindication For a Bird And Its Fans.” New York Times (Tuesday, August 2, 2005): A10.
See also, the earlier: James Gorman. “Woodpecker Flies By and the Critics Soon Follow.” New York Times Section 1 (Sun., July 24, 2005): 1 & 21.

Ethanol Wastes Energy

Cornell ecologist David Pimentel and Berkeley professor of civil and environmental engineering Tad W. Patzek have published a study that shows that, for corn, 29 percent more fossil energy is used in ethanol production, than the energy yielded by the ethanol output. In the Cornell web summary Pimental is quoted as saying: “There is just no energy benefit to using plant biomass for liquid fuel. These strategies are not sustainable.” See: http://www.news.cornell.edu/stories/July05/ethanol.toocostly.ssl.html
Pimentel and Patzek’s study was published in: Natural Resources Research (Vol. 14:1, 65-76).