Tag

Bioacoustics

All articles tagged with #bioacoustics

science1 month ago•3 min saved

Eight motifs unlock the global diversity of birdsongs

Researchers analysed about 116,000 songs from over 3,000 bird species and found all songs are built from eight motifs—three trill types, three whistle types, chaotic notes and harmonies—combined in various ways. The study shows environment shapes motif use: tropical forests favor simpler whistles to cut through busy soundscapes, while temperate forests feature more complex, information-rich songs for closer-range communication. Using a global, volunteer-sourced database and AI to compare songs, the work reveals a simple underlying structure behind birdsong diversity and highlights how birds may adapt to changing noise and habitats (Science).

via BBC|

#bioacoustics #birdsong #environment

science4 months ago•6 min saved

Across Species, a Shared 2 Hz Signaling Beat Emerges

A cross-species analysis finds most signaling/communication rates cluster around 0.5–4 Hz (roughly 2 beats per second), observed across insects, birds, mammals, and even humans, suggesting a brain-friendly tempo that may help grab attention; computer modeling shows neural circuits respond strongest at 2 Hz, supporting the idea of a universal carrier rhythm, though researchers caution that sampling biases and the vast diversity of signals mean more work is needed.

via ScienceAlert|

#2-hz #animal-communication #bioacoustics

science7 months ago•4 min saved

Rockhead Poacher Turns Its Head Into a Built-In Drum for Underwater Buzzes

LSU researchers propose that the rockhead poacher’s hollow head serves as a built-in percussion instrument to generate buzzing sounds for communication. MicroCT scans revealed internal bone spines and rib-like structures that may act as drumsticks and sensors, helping the small fish sense water flow and vibrate sound in its noisy shallow habitat.

via BBC Wildlife Magazine|

#bioacoustics #head-pit #lsu

health-and-science11 months ago•8 min saved

Hearing Baby Cries Can Cause Facial Flushing, Study Finds

Research shows that a baby's cry does not directly indicate its specific need but instead conveys the baby's identity and level of distress; decoding these signals relies on context and experience, emphasizing that understanding cries is learned, not instinctual, and highlighting the importance of cooperation and experience in caregiving.

via The Independent|

#baby-cries #bioacoustics #communication

science1 year ago•4 min saved

Leopard Seals' Underwater Songs Resemble Nursery Rhymes

Research shows that male leopard seals in Antarctica sing underwater songs with patterns remarkably similar to human nursery rhymes, likely to facilitate communication and reproductive success, with their songs being highly predictable and structured.

via ScienceAlert|

#animal-communication #antarctica #bioacoustics

environment1 year ago•1 min saved

Why Microphones Are Being Placed in Rainforests

The Rainforest Connection's Guardian system, initially developed to detect illegal logging using upcycled smartphones, has evolved into a sophisticated bioacoustic monitoring platform. Now active in ten countries, it uses custom hardware to capture real-time audio data for both conservation efforts and scientific research. The system's data is accessible to the public through mobile apps, allowing users to listen to rainforest sounds and aiding in the protection of these vital ecosystems.

via Hackaday|

#bioacoustics #conservation #environment

environment2 years ago•4 min saved

"Insect Sounds: A Key Tool for Monitoring Environmental Health"

Researchers at the University of Massachusetts Amherst are using machine learning to identify different insect species by their sounds, aiming to monitor shifts in insect populations and gauge environmental health. The study, published in the Journal of Applied Ecology, suggests that machine and deep learning are becoming the gold standards for automated bioacoustics modeling, offering a non-lethal and resource-efficient alternative to traditional methods of sampling insect populations. While automated bioacoustics has its limitations, it is seen as a key tool in effectively monitoring insect populations worldwide.

via Phys.org|

#bioacoustics #ecosystem #environment

science3 years ago•15 min saved

Exploring the Unheard: NOEMA's Sounds of Invisible Worlds.

The invention of the microscope and telescope revolutionized science and philosophy by revealing hidden worlds. However, Western culture's over-reliance on vision has led to a lack of development in hearing, which is crucial for holistic perception and knowledge. Scientists are now exploring the world of sound through bioacoustics and sonification, leading to discoveries of complex communication in nonhuman species and the potential for translation through AI. These discoveries raise ethical and philosophical questions about the uniqueness of language and the political voice of nonhumans.

via Noema Magazine|

#ai #bioacoustics #microscope