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A reedy pipe and a high-pitched trill duet against the backdrop of a low-pitched insect drone. Their symphony is the sound of a forest and is monitored by scientists to gauge biodiversity.

The recording from the forest in Ecuador is part of new research looking at how artificial intelligence could track animal life in recovering habitats.

When scientists want to measure reforestation, they can survey large tracts of land with tools like satellite and lidar.

But determining how fast and abundantly wildlife is returning to an area presents a more difficult challenge — sometimes requiring an expert to sift through sound recordings and pick out animal calls.

Jorg Muller, a professor and field ornithologist at University of Wurzburg Biocenter, wondered if there was a different way.

“I saw the gap that we need, particularly in the tropics, better methods to quantify the huge diversity… to improve conservation actions,” he told AFP.

He turned to bioacoustics, which uses sound to learn more about animal life and habitats.

It is a long-standing research tool, but more recently is being paired with computer learning to process large amounts of data more quickly.

Muller and his team recorded audio at sites in Ecuador’s Choco region ranging from recently abandoned cacao plantations and pastures to agricultural land recovering from use to old-growth forests.

They first had experts listen to the recordings and pick out birds, mammals and amphibians.

Then, they carried out an acoustic index analysis, which gives a measure of biodiversity based on broad metrics from a soundscape, like volume and frequency of noises.

Finally, they ran two weeks of recordings through an AI-assisted computer program trained to distinguish 75 bird calls.

More recordings needed

The program was able to pick out the calls on which it was trained in a consistent way, but could it correctly identify the relative biodiversity of each location?

To check this, the team used two baselines: one from the experts who listened to the audio recordings, and a second based on insect samples from each location, which offer a proxy for biodiversity.

While the library of available sounds to train the AI model meant it could only identify a quarter of the bird calls the experts could, it was still able to correctly gauge biodiversity levels in each location, the study said.

“Our results show that soundscape analysis is a powerful tool to monitor the recovery of faunal communities in hyperdiverse tropical forest,” said the research published Tuesday in the journal Nature Communications.

“Soundscape diversity can be quantified in a cost-effective and robust way across the full gradient from active agriculture to recovering and old-growth forests,” it added.

There are still shortcomings, including a paucity of animal sounds on which to train AI models.

And the approach can only capture species that announce their presence.

“Of course (there is) no information on plants or silent animals. However, birds and amphibians are very sensitive to ecological integrity, they are a very good surrogate,” Muller told AFP.

He believes the tool could become increasingly useful given the current push for “biodiversity credits” — a way of monetizing the protection of animals in their natural habitat.

“Being able to directly quantify biodiversity, rather than relying on proxies such as growing trees, encourages and allows external assessment of conservation actions, and promotes transparency,” the study said.

 
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The U.S. Commerce Department on Tuesday tightened its export controls to keep China from acquiring advanced computer chips that it could use to help develop hypersonic missiles and artificial intelligence.

Commerce Secretary Gina Raimondo said the new controls are “intended to protect technologies that have clear national security or human rights implications.”   

The new controls could increase tensions between the United States, the world’s biggest economy, and No. 2 China. In recent talks over several months with high-ranking U.S. officials, Beijing had appealed for “concrete actions” from Washington to improve relations between the two countries, although U.S. officials warned that the new export rules were in the offing.

Raimondo told reporters, “The vast majority of [the sale of] semiconductors [to China] will remain unrestricted. But when we identify national security or human rights threats, we will act decisively and in concert with our allies.”

The Commerce Department said the new restrictions came after consultations with U.S. chip manufacturers and conducting technological analyses.

The new controls allow the monitoring of the sale of chips that could still be used for military aims, even if they might not specifically meet the thresholds for trade limitations. The U.S. said chip exports can also be restricted to companies headquartered in Macao, a Chinese territory, or other countries under a U.S. arms embargo, to prevent them from circumventing the controls and providing chips to China.

The updated restrictions, an expansion of export controls announced last year, also make it more difficult for China to manufacture advanced chips abroad. The list of manufacturing equipment that falls under the export controls has also been expanded, among other changes to the policy.

China protested last year’s export controls, viewing the design and manufacture of high-level semiconductors as essential for its economic growth. Raimondo has said the limits on these chips are not designed to impair China’s economy.  

Chinese government officials are scheduled to go to San Francisco in November for the Asia-Pacific Economic Cooperation summit.

U.S. President Joe Biden has suggested he could meet on the sidelines of the summit with Chinese President Xi Jinping, though a meeting has yet to be confirmed. The two leaders met last year following the Group of 20 summit in Bali, Indonesia, shortly after the export controls were announced.

Some material in this report came from The Associated Press.
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Artificial Intelligence is being used to create musical “deepfakes” – songs that sound like one artist but were made by a computer. Deana Mitchell brings us the story of one artist who is engaging with machine learning to create new kinds of music.
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Settlement talks have collapsed between Facebook’s parent company Meta and Kenyan content moderators over a lawsuit alleging unfair dismissal, a tech rights group working with the moderators said on Monday. 

The 184 moderators sued Meta and two subcontractors earlier this year after they said they lost their jobs with one of the subcontractors, Sama, for organizing a union. They said they were then blacklisted from applying for the same roles at a second firm, Majorel, after Facebook changed contractors. 

In August, the court asked the parties to hold out-of-court settlement talks and said the case would proceed if those failed. 

British tech rights group Foxglove said in a statement on Monday that the negotiations had broken down, accusing Meta and Sama of making “very little attempt to address core issues raised by the petitioners.” 

“The respondents were buying time and not being genuine. We kept waiting for them to participate … only for them to keep asking for an extension of time and then come back every time to refuse to take accountability,” the statement quoted Mercy Mutemi, a lawyer for the plaintiffs, as saying. 

Sama said it was disappointed the mediation had failed and would not comment further on the case. 

“We have been successful in coming to a mutually agreed resolution with about 60 moderators outside of the mediation process, demonstrating our commitment and willingness to find an amicable, beneficial solution,” it said in a statement, adding it was fully complying with all court orders. 

Meta declined to comment. There was no immediate comment from Majorel. 

Meta has previously responded to allegations of a poor working environment in Kenya by saying it requires partners to provide industry-leading conditions. 

Sama has said it has always followed Kenyan law and provided mental health services to its employees. In August, Majorel said it does not comment on matters involving pending or active litigation. 

The moderators also allege that Meta is trying to terminate their contracts in defiance of an earlier court order. A hearing on their petition to find Meta and Sama in contempt of court is scheduled for October 31, Foxglove said. 

Meta has also been sued in Kenya by a former moderator over accusations of poor working conditions at Sama, and by two Ethiopian researchers and a rights institute, which accuse it of letting violent and hateful posts from Ethiopia flourish on Facebook.

In response, Meta said last December that hate speech and incitement to violence were against the rules of its Facebook and Instagram platforms. 
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A technology, innovation and entrepreneurship summit sparked imaginations in Ethiopia last week. The inaugural Enkopa summit — a collaboration between the Ethiopian Ministry of Labor and Skills and other partners — brought in speakers and exhibitors from across the world to Addis Ababa to discuss technology, innovation and entrepreneurship.

Speaking at the two-day event, Ethiopian State Minister of Labor and Skills Nigussu Tilahun emphasized the important role of the government in clearing a path for job creation in the country.

Nigussu said government’s role in building the entrepreneurship ecosystem is to create and facilitate a conducive environment for it.

The event, which was October 12 and 13, had 150 speakers from sectors like fintech, health care and agriculture.

Feven Tsehaye, founder and CEO of Chakka Origins — which sources natural ingredients in biodiversity hotspots — said land management is crucial to the work the company does in Ethiopia.

She said working with small holder farmers is essential.

“It makes sense to work with them and more efficiently utilizing their space instead of engaging in land clearing or displacing people,” Feven said.

Sessions during the two-day summit also explored the role of AI in agriculture, and sustainable farming in Ethiopia.

Abrhame Endrias leads Lersha, which provides digital services to farmers. He said making technology accessible to farmers encourages tech adoption.

Lersha provides climate and pest control advisories, farming inputs and options for mechanization.

Abrhame said Lersha translates information into local languages so farmers can understand the information and make decisions. The information comes to the farmers via text message.

While Lersha focuses on small holder famers, there were startups at the summit that focused on Ethiopia’s commercial farmers.

Semegn Tadesse, CEO of ARMADA AgriTech, said working with commercial farmers promises to deliver a more radical change.

“If you want to show progress, here is a big room for improvement in commercial farmers,” Semegn said. “They are also underserved even though they have financial capacity.”

The summit, funded by the United Nations Development Program, and other partners is expected to be held every year.
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