US EditionNoisy Humans Harm Birds and Affect Breeding Success: Study
A meta-analysis of 161 bird species shows human noise reduces reproductive success and alters key behaviors like feeding and aggression, study finds.
- A University of Michigan-led meta-analysis combined 160 studies across six continents, analyzing 944 measured effects from 161 bird species, published in Proceedings of the Royal Society B.
- Researchers note birds rely on acoustic signals for mating, alarms and chick begging, but human noise sources like car engines, aircraft, drilling machines and lawn mowers mask these vital sounds.
- The review found noise alters communication and song traits, feeding behavior and vigilance, and stress hormones such as corticosterone, which can harm immune function and slow growth in young birds.
- Results indicate breeding metrics like egg survival and fledging rates drop in noisy areas, and researchers propose forest cover, quieter road surfaces, and sound barriers as achievable mitigation measures.
- Conservation-Wise, noise drives birds away or reduces nest density, pushing species into new competition and risks; responses vary by species traits and habitat features like vegetation buffers and tree canopies.
39 Articles
39 Articles
Human noise harm birds: study
Noise pollution is affecting bird behaviour across the globe, disrupting everything from courtship songs to the ability to find food and avoid predators, a large-scale new analysis showed on Wednesday. Researchers reviewed nearly four decades of scientific work and found that noises made by humans were interfering with the lives of birds on six continents and having "strong negative effects" on reproduction success. Previous research on individu…
Road traffic, construction sites, mowers or leaf blowers mask the mowing of the sparrow, the whistling of the red throat or the singing of the merle. This has "significant negative effects" on their reproduction, warns a scientific journal, published Wednesday 11 February. But many solutions exist.
InsideNoVA.com
Noisy humans harm birds and affect breeding success: study
Noise pollution is affecting bird behaviour across the globe, disrupting everything from courtship songs to the ability to find food and avoid predators, a large-scale new analysis showed on Wednesday.
Noise pollution is affecting birds' reproduction, stress levels and more: The good news is we can fix it
New research led by the University of Michigan is painting a more comprehensive picture of how noise pollution is impacting birds around the world. "The major takeaway from this study is that anthropogenic noise affects many aspects of bird behavior, with some responses more directly tied to fitness," said Natalie Madden, lead author of the new study published in the journal Proceedings of the Royal Society B.
Coverage Details
Bias Distribution
- 57% of the sources are Center
Factuality
To view factuality data please Upgrade to Premium
