Roar of traffic drowns out frogs' love croaks
Saturday 22 August 2009
Traffic noise could be ruining the sex lives of urban frogs by drowning out the seductive croaks of amorous males, according to an Australian researcher.
A well-projected and energetic croak is the male frog's most important asset in the quest to attract mates to his pond, said a Melbourne University ecologist, Kirsten Parris. But competition from traffic noise in Melbourne could be why frog numbers have declined in Australia's second-largest city since her survey of more than 100 ponds began in 2000, she said. "If there are a number of different males calling, the one that sounds the best often gets the girl," said Dr Parris. "You have to be pretty clear about your assets if you're a male frog." Dr Parris found the distance at which a frog suitor can be heard by a potential mate is slashed by city noise.
- 1 What happens to your body when you give up sugar?
- 2 Ed Miliband deemed less influential than One Direction's Louis Tomlinson by official Doncaster power list
- 3 Japanese island overrun with cats after population explodes
- 4 Delhi bus rapist blames dead victim for attack because 'girls are responsible for rape'
- 5 Have sex with your iPad thanks to the new sex toy no-one asked for
California teacher appears to have hanged herself in her classroom
The City of the Monkey God: Archaeologists claim to have found city lost for 1,000 years in remote Honduran jungle
Ed Miliband deemed less influential than One Direction's Louis Tomlinson by official Doncaster power list
Japanese island overrun with cats after population explodes
Delhi bus rapist blames dead victim for attack because 'girls are responsible for rape'
'Jihadi John': CAGE representative storms off Sky News accusing Kay Burley of Islamophobia
Durham Free School: 'Creationism taught at' free school facing closure
Ukip would cut billions from Scottish budget to fund English tax cuts
Nearly 100,000 of Britain's poorest children go hungry after parents' benefits are cut
End of the licence fee: BBC to back radical overhaul of how it is funded
Ukraine crisis: Top Chinese diplomat backs Putin and says West should 'abandon zero-sum mentality'
£16000 - £46000 per annum: Recruitment Genius: This is an opportunity to join ...
£9 - £13 per hour: Recruitment Genius: This is a great opportunity to join a s...
£25000 - £35000 per annum: Recruitment Genius: Have you got a proven track rec...
£15000 - £18000 per annum: Recruitment Genius: This is a great opportunity for...