Article
Courtesy of Endangered Wildlife Trust/LJMU (All Images)

Wild Technology

Researchers have turned to new solutions to study and help protect endangered species worldwide 

By Jeanette Ferrara
From the September 2020 Issue

Learning Objective: Students will add numbers that require regrouping to learn facts about technology that is helping save endangered animals.

Lexile: 940L; 640L

Courtesy of Endangered Wildlife Trust/LJMU

Infrared cameras aboard this drone snap photos of animals from above.

Camera Counters

Scientists Serge Wich and Steven Longmore decided that they would look to the stars to help save species here on Earth. Wich studies ecosystems. Longmore studies stars and other objects in space. They installed special infrared cameras on remote-controlled aircraft to track endangered species in their natural habitats. The cameras are similar to those used by Longmore to study stars. They detect animals based on the heat their bodies generate.

“For best results you have to fly your camera drone early in the morning before the sun has had a chance to heat up the ground and the environment,” says Longmore. “We send the videos to colleagues who are skilled at finding and identifying animals in the footage.”

Scientists Serge Wich and Steven Longmore help save endangered species. Wich studies ecosystems. Longmore studies stars and other space objects. Together, they installed special cameras on remote-controlled aircraft. The cameras use infrared technology. The cameras track endangered species in their natural habitats. Longmore uses similar cameras to study stars. The cameras detect animals by their body heat.

“You have to fly your camera drone early in the morning, before the sun heats up the environment,” says Longmore. “We send the videos to colleagues who can find and identify animals in the footage.”

Courtesy of Endangered Wildlife Trust/LJMU

A photo of rhinoceroses taken with a regular camera; The same scene photographed with an infrared camera

Wild Wonders of Europe/Zankl/NaturePL.com (Turtle)

Egg Protectors

Illustration by Kate Francis

A decoy egg with a tracking device is painted and put in a nest. 

“Olive ridley sea turtles are an iconic endangered species,” ecologist Kim Williams-Guillén says. Every summer off the coast of Nicaragua, thousands of turtles nest at once. But some people flock to the beaches to steal and sell the turtles’ eggs. A single egg can sell for $300!

So Williams-Guillén worked with artist Lauren Wilde to create a device that would fool even the most experienced turtle egg poachers. Called an InvestEGGator, these cream-colored spheres look and feel just like sea turtle eggs. Each imitation egg holds a tiny tracker inside. It can reveal the location of a poacher who picks it out of the nest. “The fake eggs are an easy way to learn more about the illegal wildlife trade,” Williams-Guillén says.

“Sea turtles are an endangered species that live off the coast of Nicaragua,” ecologist Kim Williams-Guillén says. Thousands of turtles nest at the same time every summer. But some people steal and sell the turtles’ eggs. A single egg can sell for $300!

Williams-Guillén worked with artist Lauren Wilde. Together, they created a device to fool turtle egg poachers. It’s called an InvestEGGator. The devices are cream-colored and round. They look and feel just like sea turtle eggs! Each fake egg holds a tiny tracker inside. A poacher might take an InvestEGGator from a nest. The tracker can reveal that poacher’s location. “The fake eggs are an easy way to learn more about the illegal wildlife trade,” Williams-Guillén says.

Tui De Roy/Minden Pictures

Kakapo

Bird Backpacks

This flightless parrot is one of the world’s most endangered birds. The kakapo lives only in New Zealand. Just a few hundred birds are left. The species breeds every three or four years. It’s not unusual for the chicks to die from lack of food. Scientist Andrew Digby and his team hope to change that.

They put special backpacks equipped with a device similar to a fitness watch on the birds. The device tells Digby’s team the birds’ activity level and location. When a female lays eggs, the scientists swoop in and raise most of the chicks by hand. This makes sure the chicks receive enough food. 

“Over the last four years, the kakapo’s population has grown 70 percent thanks to our work,” says Digby. “We want to make sure as many chicks survive as possible.”

The kakapo is one of the world’s most endangered birds. It doesn’t have the ability to fly. The kakapo lives only in New Zealand. Only a few hundred birds are left. The species breeds every three or four years. The chicks often die because they don’t get enough food. Scientist Andrew Digby and his team hope to change that.

Digby and his team put special backpacks on the birds. The backpacks include a device similar to a fitness watch. The device tells Digby’s team the birds’ activity level. It also tells the team where the birds are located. The scientists wait for a female kakapo to lay eggs. Then the scientists come to get the eggs. They raise most of the chicks by hand. The scientists make sure the chicks get enough food.

“The kakapo’s population has grown 70 percent over the last four years, thanks to our work,” says Digby. “We want to make sure as many chicks survive as possible.”

Steven Kazlowski/NPL/Minden Pictures (Wolf)

This collar helps track the wolves.

Canine Collars

Gray wolves are a key part of their ecosystem. They keep the numbers of animals they hunt in check. Their leftovers provide food for other creatures. But wolves are difficult to study because they are nocturnal. That means they are mostly active at night. 

Wildlife ecologist Caleb Bryce uses special collars to track the wolf population in Alaska’s Denali National Park. These collars have smart transmitters. They let Bryce know when the wolves are active or resting, where they chase and kill their prey, and when they wander into dangerous human territory, like highways.

“Understanding these important carnivores can help inform conservation efforts here and elsewhere,” explains Bryce. 

Gray wolves are an important part of their ecosystem. They hunt other animals. That makes sure the numbers of those species don’t grow too fast. Other creatures eat gray wolves’ leftovers. But wolves are difficult to study because they are nocturnal. That means they are mostly active at night.

Wildlife ecologist Caleb Bryce studies gray wolves in Alaska. He uses special collars to track the wolves in Denali National Park. These collars have smart transmitters. They let Bryce know when the wolves are active or resting. The transmitters show where the wolves chase and kill their prey. They let Bryce know when the wolves wander into dangerous human territory, like highways.

“Understanding these important carnivores can help inform conservation efforts,” explains Bryce.

Now You Try It

Steven Longmore uses a drone and infrared camera to count 123 elephants and 43 zebras. How many total animals did the camera detect during the flight?

Steven Longmore uses a drone and infrared camera to count 123 elephants and 43 zebras. How many total animals did the camera detect during the flight?

One sea turtle nest contains 99 eggs. If Williams-Guillén adds 8 decoy eggs to the nest, how many eggs will there be in total? 

One sea turtle nest contains 99 eggs. If Williams-Guillén adds 8 decoy eggs to the nest, how many eggs will there be in total? 

The kakapo breeding season in 2016 produced 46 chicks. The breeding season in 2019 produced 72 chicks. How many total chicks were raised during the 2016 and 2019 breeding seasons?  

The kakapo breeding season in 2016 produced 46 chicks. The breeding season in 2019 produced 72 chicks. How many total chicks were raised during the 2016 and 2019 breeding seasons?  

Caleb Bryce tracked two wolf packs. One pack had 18 wolves. The other pack had 27. He also tracked 6 lone wolves. How many wolves did he track in total?  

Caleb Bryce tracked two wolf packs. One pack had 18 wolves. The other pack had 27. He also tracked 6 lone wolves. How many wolves did he track in total?  

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