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article imageTraffic noise ruins the sex lives of frogs

By John Louie S. Ramos     Aug 22, 2009 in Science
An Australian researcher announced Friday that the traffic noise in the city of Melbourne ruins the sex lives urban frogs.
Melbourne University ecologist Kirsten Parris said that the competition from traffic noise in the city is the main reason why frog numbers have declined since her survey of more than 100 ponds began in 2000.
Frogs attract mates by croaking. Similarly, the one that sounds the best often gets the female frog. The louder the croak, the better as Parris noted that the stronger call often correlates with how the female frog choose her sexual partner.
Parris found out that the noise brought about by the traffic noise in the busy streets of Melbourne cuts the distance to which a male frog's croak can be heard. Furthermore, the female frog won't hear the croak as loud as it was, reducing the chances of attraction.
"This makes it much harder for frogs to attract mates and this could then mean that their breeding success is reduced," Parris said.
Yahoo! News reports.
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