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Wildlife Conservation Society supports world's first study of egg-laying mammal
Date:6/9/2009

A Wildlife Conservation Society research intern working in the wilds of Papua New Guinea has successfully completed what many other field biologists considered "mission impossible"the first study of a rare egg-laying mammal called the long-beaked echidna.

The WCS-supported studywhich consisted of thousands of hours of grueling field work in Papua New Guinea's Crater Mountain Wildlife Management Areatook Muse D. Opiang, now of the Papua New Guinea Institute of Biological Research, several years of remotely tracking the porcupine-sized mammals and recording their dens and other signs.

The study, published in a recent of the Journal of Mammalogy, chronicles the first solid data on the animal's nocturnal foraging behaviors, movement patterns, and home-range sizes for the species.

The long-beaked echidna is found only in New Guinea and is a member of the monotremes, a primitive order of mammals that forced zoologists to change their very definitions of what a mammal is. Unlike all other mammals, monotremes like the echidna (also called the spiny anteater) and the better known platypus lay eggs.

"All of the time and effort invested in the study has paid off with new insights into the natural history of this seldom seen and unusual mammal," said Opiang. "These findings will help inform conservation strategies for the species, which is threatened by hunting and habitat loss."

The nocturnal, subterranean lifestyle of the species represented a real challenge for field research, with some experts declaring the species impossible to study. And it did take some time nearly 6,000 man-hours of field work between 2001-2005. Opiang spent 500 hours in the field before locating his first animal.

In the end, Opiang managed to capture 22 individual echidnas (15 adults and 7 juveniles), and affixed radio transmitters to 9 adults and 3 juveniles. Because this was the first study of the unusual species, Opiang had to de
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Contact: John Delaney
jdelaney@wcs.org
718-220-3275
Wildlife Conservation Society
Source:Eurekalert  

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