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Himalayan Monals Adapt Calls to Human Noise
3 Nov
Summary
- Himalayan monals in noisy areas use higher-frequency calls.
- Birds adjust calls due to traffic and pilgrim activity.
- Climate change and habitat fragmentation also impact monals.
The calls of Himalayan monals are shifting due to rising levels of human noise. Researchers observed that these colorful pheasants, the state bird of Uttarakhand, are producing higher-frequency calls in bustling tourist areas like Chopta Valley compared to quieter regions.
This adaptation is considered behavioral flexibility, allowing the birds to communicate over the sounds of traffic and human activity. The study suggests this is a response to environmental changes rather than an evolutionary one. However, concerns remain about potential impacts on mating calls reaching females.
Beyond noise, the Himalayan monal faces challenges from climate change, which could alter its habitat by 2100. Fragmented landscapes may also hinder the birds' ability to reach new suitable areas, underscoring the need for further research into threats like tourism and habitat loss.
