Friday, August 5, 2011

Know About Western fence lizards

Areas in California where Western fence lizards were removed had a subsequent drop in numbers of the ticks that transmit Lyme disease, researchers have discovered.

"Our expectation was that removing the lizards would increase the risk of Lyme disease, so we were surprised by this finding," said ecologist Andrea Swei, who conducted the study while she was a Ph.D. student in integrative biology at University of California, Berkeley.





"We observed that the result of lizard removal was a decrease in infected ticks, and therefore decreased Lyme disease risk to humans.".

Results of the study, published online today in the journal Proceedings of The Royal Society B, illustrate the complex role the Western fence lizard (Sceloporus occidentalis) plays in the abundance of disease-spreading ticks.

"This study demonstrates the complexity of infectious disease systems, and how the removal of one player--lizards--can affect disease risk," said Sam Scheiner, program director at the National Science Foundation (NSF), which funded the research through a joint Ecology of Infectious Diseases (EID) Program with the National Institutes of Health.


At NSF, the EID Program is supported by the Directorates for Biological Sciences and Geosciences.........

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