Hunt­ing hand­i­cap

Down to Earth - - SCIENCE -

of road­ways and the rise in traf­fic have af­fected the hunt­ing ca­pa­bil­i­ties of an­i­mals that catch preys us­ing their sense of hear­ing. A study on wild owls shows that traf­fic noise in the range of 40 deci­bels (equiv­a­lent to the noise made in a quiet res­i­den­tial area) re­duces their hunt­ing ca­pac­ity by 17 per cent, while a noise level of 80 deci­bels (equiv­a­lent to that of a train) brings it down by a sub­stan­tial 89 per cent. Sci­en­tific Re­ports, Au­gust 18

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