Wimbledon Courts Chief Has Global Vision for Tennis on Grass

Groundstaff mow the courts at the Wimbledon Championships Glyn KIRK AFP
Groundstaff mow the courts at the Wimbledon Championships Glyn KIRK AFP
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Wimbledon Courts Chief Has Global Vision for Tennis on Grass

Groundstaff mow the courts at the Wimbledon Championships Glyn KIRK AFP
Groundstaff mow the courts at the Wimbledon Championships Glyn KIRK AFP

Wimbledon head of courts Neil Stubley is on a mission to champion grass-court tennis around the world by harnessing modern technology to recreate the unique conditions of the All England Club.

Players only get the chance to compete on the surface for a few weeks each year, with clay and hard-court tournaments dominating international tours, AFP said.

But Stubley, whose role is to keep the lush turf of Wimbledon in tip-top shape, is involved in trials in Britain and Australia using synthetic fibers alongside grass to improve court surfaces.

"One of the biggest challenges for grass tennis is that you need quite a heavy clay soil because what you need to do is be able to dry it out and get the ball bounce," he said.

"In the UK we've naturally got quite a lot of clay soil within our soil make-up, whereas in other parts of the world some countries are very much dominated by chalk or sand so they find it a lot harder to find the sort of soils that we naturally find in the UK."

Stubley said using grass-stitching with sandier soils helps make the structure of the playing surface more stable and resilient.

"You can actually have a more free-draining surface but you can still get the hardness on the surface as well so then you can go to places like Australia that have got very silty, sandy soils and create good grass courts, so that's part of our research."

Stubley said the first aim was to make sure the new courts worked for tennis, reproducing the characteristics of a grass court.

The head of courts and horticulture, who has worked at Wimbledon for nearly three decades, is passionate about promoting grass-court tennis.

"We want to champion global grass tennis, not just for the Championships but hopefully you can potentially have tournaments in any country in the world, depending on whether it's a warm-season or a cool-season grass," he said.

"We're doing a lot of research in southern hemisphere grasses, Bermuda grasses and the like, so we can actually end up having a product where we can have the right root zone and the right grasses on top to give us the same characteristics of a court at Wimbledon."

Football lesson
Stubley said tennis was learning from football, which has used grass-stitching for a number of years.

He said other sports including cricket were interested in the technology as it could lead to longer seasons.

"We've got some trial courts that we've built (in Britain)," said Stubley.

"We're just getting players and members to play on it, get feedback, doing that same data collection that we would do with STRI (sports turf consultancy), with hardness, ball bounce, ball height, speed, the ball coming through.

"If we can have a more free-draining soil, could we actually extend the grass-court season by four to six weeks and make it more appealing for the general public to play grass-court tennis?"

But Stubley does not see any immediate use for grass-stitching on Wimbledon's courts.

"The stich system probably for the betterment of world grass-court tennis," he said. "I think the Championships are a standalone.

"We kind of get to the point where we can have better-quality courts around the world. It's more about getting juniors more used to grass so it's not so alien to them when they come on the main tour."

But Stubley said Wimbledon itself, which from this year permanently loses its middle Sunday rest day, meaning more constant wear and tear, has benefited from technological advances over the years.

This has included painstakingly trialing and selecting the best type of ryegrass and a better understanding of the use of nutrients and chemicals.

Steam-sterilizing the courts at high temperatures helps control weeds, pests and fungi, meaning there is less reliance on fungicides.

"It's just a combination of those sorts of things that's put us in a position now where we just feel confident that that extra day won't have a direct impact on the quality of the turf," he said.



AI Will Eavesdrop on World’s Wildest Places to Track and Help Protect Endangered Wildlife

An endangered Geoffrey's spider monkey that had been rescued and living in the care of the Alturas Wildlife Sanctuary in Dominical, Costa Rica, on March 17, 2023. (AP)
An endangered Geoffrey's spider monkey that had been rescued and living in the care of the Alturas Wildlife Sanctuary in Dominical, Costa Rica, on March 17, 2023. (AP)
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AI Will Eavesdrop on World’s Wildest Places to Track and Help Protect Endangered Wildlife

An endangered Geoffrey's spider monkey that had been rescued and living in the care of the Alturas Wildlife Sanctuary in Dominical, Costa Rica, on March 17, 2023. (AP)
An endangered Geoffrey's spider monkey that had been rescued and living in the care of the Alturas Wildlife Sanctuary in Dominical, Costa Rica, on March 17, 2023. (AP)

The endangered Geoffrey’s spider monkeys that dangle high in the rainforest canopy are elusive and hard for scientists to track.

So biologist Jenna Lawson hid 350 audio monitors in trees across Costa Rica's lush Osa Peninsula to spy on them.

The devices recorded the sounds of the forest and surrounding countryside for a week, collecting so much data that Lawson could have spent years listening to it all.

Instead, she fed it into artificial intelligence systems trained to instantly recognize spider monkey calls and detect where the animals traveled. One of the world’s largest acoustic wildlife studies when Lawson began the project in 2021, it revealed troubling findings about the health of a treasured wildlife refuge.

More of this AI-assisted wildlife surveillance is "urgently needed" as some 28% of all plant and animal species are now at risk of extinction, according to a paper published in the academic journal Science this summer.

Researchers from Dutch and Danish universities showed that machine-learning techniques can "handle huge amounts of data and uncover sound patterns, allowing for faster, cheaper, and better ecological studies" that can aid in biodiversity conservation. But many technical challenges remain.

Tech giant Microsoft's philanthropic AI for Good Lab announced this month it is hoping to answer some of those technical challenges with a new kind of hardware and computing system for eavesdropping on the planet's wildest places.

"Those remote places are also the most important places on the Earth from a biodiversity perspective," said Microsoft's chief data scientist, Juan Lavista Ferres, in an interview last week by video call from Colombia, where a research team was preparing to test the new approach.

Powered by the sun and energy-efficient AI computer chips, the devices can run for years rather than weeks without human intervention. And they can regularly transmit their data online via low-Earth orbit satellites. It's called Sparrow, short for Solar-Powered Acoustic and Remote Recording Observation Watch.

Pablo Arbelaez, director of an AI-focused research center at the University of the Andes, said a first Sparrow test will happen in a jungle preserve along Colombia's largest river, the Magdalena. Eventually, the researchers hope to get a better idea of how deforestation — and efforts to reverse it — is affecting the population behavior of jaguars, blue-beaked paujil birds, spider monkeys and other endangered species.

Another project closer to Microsoft headquarters will monitor forests in Washington state's Cascade Mountains. By late 2025, Lavista Ferres plans to have devices on all continents, from remote corners of the Amazon rainforest to gorilla habitats of the Democratic Republic of the Congo. That will then be "open-sourced" to make it accessible to a wide body of researchers in real time, but with measures to obscure sensitive location data.

"What we don’t want is these devices to ever be used for poachers to understand where the animals are," Lavista Ferres said.

It was a concern about encroachments on Costa Rican spider monkey habitat that led Lawson, then at Imperial College London, to undertake her ambitious bio-acoustic study three years ago. She persuaded landowners to let her place recording devices on their properties outside Corcovado National Park, a jewel of Costa Rica's decades-long efforts to preserve biodiversity by encouraging wildlife tourism.

"She basically realized the spider monkey is in a really critical situation," said local environmentalist and bug scientist Jim Córdoba-Alfaro. On a follow-up visit last year, he and Lawson trekked across a private reserve with an Associated Press reporter to observe the monkeys and check on the audio monitors.

Compared to the charismatic capuchin monkey and the notoriously loud howler monkey -- both commonly seen or heard throughout Costa Rica — spider monkeys are far more wary of humans and the changes they bring.

"They’re the most sensitive of the primates that we have here," said Lawson. "The spider monkey would be the first animal to leave when there’s signs of trouble. They would be the last animal to come back once forests are restored because they need mature secondary and primary forest to be able to survive."

The Royal Society of London in March 2023 published Lawson's findings of what the audio monitors revealed: the spider monkeys weren't going anywhere near paved roads or the plantations harvesting palm oil and teak wood that bisect the region's protected national parks. That meant government-designated wildlife corridors meant to extend their range through and beyond the Osa Peninsula were not working as well as designed. She came back to present those conclusions to local officials.

After hours of searching, a troop of spider monkeys appeared — peering down at the humans who found them. Within moments, they were on their way again — extending their lanky arms and prehensile tails to grasp at trees and propel themselves across the canopy with spidery acrobatics.

Unattended acoustic detection of animal sounds is valuable not just in rainforests but in a wide variety of ecosystems, according to the Science paper published earlier this year. For example, it could help sailors avoid colliding their ships with large baleen whales heard to be passing through a shipping channel.

Lavista Ferres said there are still numerous challenges to overcome, from humidity that can fray jungle monitors to elephants in African savannas unintentionally knocking them off a tree.

Lawson said using the audio monitors to capture the spider monkey's distinctive whinny enables biologists to study a larger area at lower cost, but also provides a truer account of how the monkeys behave without scientists following them around.

"We’re reducing our influence on their behavior," she said. "And also — they don’t want us here."