It is well known that human hubbub can have a negative impact on some animals, but a new study on Wednesday says the noise we make should be treated as a "major global pollutant".
"We found that noise affects many species of amphibians, arthropods, birds, fish, mammals, molluscs and reptilians," scientists at Queen's University Belfast said in the Royal Society's Biology Letters.
Human noise pervades the environment, from vehicles and industry in dense urban centres, to planes flying overhead, to ocean going vessels whose propellor is thought to interfere with whale sonar communications and may be implicated in mass beaching as the disorientated animals lose their sense of direction.
Reviewing a series of individual studies in what is known as a meta-analysis, Hansjoerg Kunc and Rouven Schmidt said the issue should be seen as the "majority of species responding to noise rather than a few species being particularly sensitive to noise."
"The interesting finding is that the species included range from little insects to large marine mammals such as whales," he Kunc told AFP. "We did not expect to find a response to noise across all animal species."
The paper said that an animal's response to the clatter of human activity is not necessarily straightforward, and cannot be easily termed as positive or negative.
Manmade noise, for example, has been shown to interfere with the sonar detection systems that bats use to find their insect prey, making it more difficult for the flying mammals to catch insects.
Human sound pollution and the animal response to it must be seen in the context of an ecosystem, especially when considering conservation efforts, the authors note.
Copyright Agence France-Presse, 2019
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