Wildlife Acoustics Blog

Noise

Blame the traffic! Bird songs drowned out by city noise

Blame the traffic! Bird songs drowned out by city noise

Looks like songbirds can blame it on the traffic, too. Scientists are suggesting that the noise level in cities may be leading to miscommunication among songbirds, leading to decreased diversity in urban areas.

(When Dr. Darren Proppe conducted the study in Canada, he wanted to know why birds in seemingly suitable environments within cities had lower than normal levels of diversity in songbirds. )

Dr. Darren Proppe’s team in Canada looked at 113 sites in Edmonton, which has a population over 800,000. They studied seven species that were native to the area, focusing on the correlation between noise and species abundance.

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Super Mega Pod of Dolphins spotted off San Diego Coast!

Super Mega Pod of Dolphins spotted off San Diego Coast!

A pod of dolphins is a group of up to a dozen dolphins swimming together. A super pod is a much larger group, sometimes over a thousand dolphins. And a super mega-pod, well, that sounds like an escape vehicle from a 70s sci-fi movie. Actually, it was estimated that the enormous aggregation, which was spotted 7 miles from the coast of San Diego, spanned well over 35 square miles and contained about 100,000 dolphins. Can you imagine the amount of underwater communication in that scenario? We wish we were there with our SM2M+ Submersible bioacoustics recorder to catch the chatter!

More details and a picture of the super mega-pod

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