by Staff Writers
Los Angeles CA (SPX) Dec 12, 2011
GPS tracking has shown its utility for wildlife studies, and now, development of light-weight GPS tags will allow researchers access to information about a broader range of small- to medium-sized animals than was previously available, according to a study to be published in the online journal PLoS ONE.
While previous research was generally limited to larger animals that could carry the traditional, heavier weight tags, Mariano Recio of the University of Otago in New Zealand led a team of researchers that studied the performance of a lighter-weight model that can be used on animals that weigh at least 5.5 pounds (2.5 kilograms).
The lighter equipment required to track these small animals sometimes does not perform as well as the heavier GPS devices, but the team determined how and where the smaller devices must be used to obtain optimal results, eventually allowing for tracking of animals across a broad range of sizes.
Citation: Recio MR, Mathieu R, Denys P, Sirguey P, Seddon PJ (2011) Lightweight GPS-Tags, One Giant Leap for Wildlife Tracking? An Assessment Approach. PLoS ONE 6(12): e28225. doi:10.1371/journal.pone.0028225
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Russia to put two more Glonass satellites into operation
Moscow (RIA Novosti) Dec 09, 2011
Two more Glonass navigation satellites will be up and running before the end of the year, Russian space officials said on Thursday. "We plan to put two more satellites into operation before the end of the year, and another at the beginning of 2012," the Roscosmos space agency said. The group of 24 Glonass sat-navs needed to provide global coverage is already in orbit. The last satell ... read more
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