Sounds of recovery: AI helps monitor wildlife during forest restoration
10/25/23 • 25 min
1 Listener
In this episode:
00:47 An automated way to monitor wildlife recovery
To prevent the loss of wildlife, forest restoration is key, but monitoring how well biodiversity actually recovers is incredibly difficult. Now though, a team have collected recordings of animal sounds to determine the extent of the recovery. However, while using these sounds to identify species is an effective way to monitor, it’s also labour intensive. To overcome this, they trained an AI to listen to the sounds, and found that although it was less able to identify species, its findings still correlated well with wildlife recovery, suggesting that it could be a cost-effective and automated way to monitor biodiversity.
Research article: Müller et al.
12:30 Research Highlights
Researchers develop algae-based living materials that glow when squeezed, and a 50-million-year-old bat skull that suggests echolocation was an ancient skill.
Research Highlight: Give these ‘living composite’ objects a squeeze and watch them glow
Research Highlight: Fossilized skull shows that early bats had modern sonar
15:11 Briefing Chat
A brain imaging study reveals how high-fat foods exert their powerful pull, and how being asleep doesn’t necessarily cut you off from the outside world.
Nature News: Deep asleep? You can still follow simple commands, study finds
Nature News: Milkshake neuroscience: how the brain nudges us toward fatty foods
Hosted on Acast. See acast.com/privacy for more information.
In this episode:
00:47 An automated way to monitor wildlife recovery
To prevent the loss of wildlife, forest restoration is key, but monitoring how well biodiversity actually recovers is incredibly difficult. Now though, a team have collected recordings of animal sounds to determine the extent of the recovery. However, while using these sounds to identify species is an effective way to monitor, it’s also labour intensive. To overcome this, they trained an AI to listen to the sounds, and found that although it was less able to identify species, its findings still correlated well with wildlife recovery, suggesting that it could be a cost-effective and automated way to monitor biodiversity.
Research article: Müller et al.
12:30 Research Highlights
Researchers develop algae-based living materials that glow when squeezed, and a 50-million-year-old bat skull that suggests echolocation was an ancient skill.
Research Highlight: Give these ‘living composite’ objects a squeeze and watch them glow
Research Highlight: Fossilized skull shows that early bats had modern sonar
15:11 Briefing Chat
A brain imaging study reveals how high-fat foods exert their powerful pull, and how being asleep doesn’t necessarily cut you off from the outside world.
Nature News: Deep asleep? You can still follow simple commands, study finds
Nature News: Milkshake neuroscience: how the brain nudges us toward fatty foods
Hosted on Acast. See acast.com/privacy for more information.
Previous Episode
An anti-CRISPR system that helps save viruses from destruction
In this episode:
00:47 An RNA-based viral system that mimics bacterial immune defences
To protect themselves against viral infection, bacteria often use CRISPR-Cas systems to identify and destroy an invading virus’s genetic material. But viruses aren’t helpless and can deploy countermeasures, known as anti-CRISPRs, to neutralise host defences. This week, a team describe a new kind of anti-CRISPR system, based on RNA, which protects viruses by mimicking part of the CRISPR-Cas system. The researchers hope that this discovery could have future biotechnology applications, including making CRISPR-Cas genome editing more precise.
Research article: Camara-Wilpert et al.
09:05 Research Highlights
Carved inscriptions suggest a queen named Thyra was the most powerful person in Viking-age Denmark, and the discovery of a puffed-up exoplanet that has just 1.5% the density of Earth.
Research Highlight: Runes on Viking stones speak to an ancient queen’s power
Research Highlight: ‘Super-puff’ planet is one of the fluffiest worlds ever found
11:38 Modelling the future of Greenland’s ice sheet melt
Climate-change induced melting of Greenland’s vast ice sheet would contribute to 7m of sea level rise. But it has been difficult to calculate how the ice sheet will respond to future warming. This week, a team suggest that abrupt ice loss is likely if the global mean temperature is between 1.7 °C and 2.3 °C above pre-industrial levels. Keeping temperature rise below 1.5 °C could mitigate ice loss, if done within a few centuries, but even a short overshoot of the estimated threshold could lead to several metres of sea-level rise.
Research article: Bochow et al.
17:50 Briefing Chat
A massive reproducibility exercise reveals over 200 ecologists get wildly-diverging results from the same data, and how melting simulated lunar-dust with lasers could help pave the Moon.
Nature News: Reproducibility trial: 246 biologists get different results from same data sets
Nature News: How to build Moon roads using focused beams of sunlight
Hosted on Acast. See acast.com/privacy for more information.
Next Episode
Martian sounds reveal the secrets of the red planet's core
For years, researchers have been listening to Mars and the quakes that ripple through it, to understand the planet's internal structure and uncover its history. But often these results have left more questions than answers. Now, though, new research published in Nature reveals the composition and size of Mars's core, finding that it is much smaller than previously thought.
Research Article: Khan et al.
Research Article: Samuel et al.
News and Views: Deep Mars is surprisingly soft
Hosted on Acast. See acast.com/privacy for more information.
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