MAY 05, 2017 9:34 AM PDT

Scientists Are Now Counting Birds From Space

WRITTEN BY: Anthony Bouchard

Keeping an accurate headcount of the endangered Northern Royal Albatross is somewhat of an important venture for scientists based out of New Zealand, but it's not easy because their natural habitat is difficult to access.

The albatross is one of the world's largest flying birds.

Image Credit: PublicDomainPictures/Pixabay

History has proven that headcounts on land can be inaccurate or miss important details, and to fix that, we’re beginning to work towards a future of ‘eye-in-the-sky’ headcounts. Most of these are performed by flying drones or airplanes, which don’t disturb the natural habitat of the creatures, but another way we can do this is by way of satellite imagery.

Published in the journal Ibis, a study described how high-resolution imagery can be used to accurately measure the population of a species on a global scale. The images, which were taken by the DigitalGlobe WorldView-3 Satellite are so detailed that individual birds can be counted in the photographs.

Importantly, this was the first time an entire animal species has been surveyed on a global scale from outer space, which is a big milestone since governments have only recently allowed such high-resolution space imagery to be accessible by non-military entities.

In these photographs, you’ll see numerous small white dots popping out from the dark background that are only a couple of pixels wide, but each of these white dots just happens to be an albatross in the region.

Image Credit: DigitalGlobe

According to the study, as many as 3,600 albatross nests were counted, which is reportedly down from a ground-based headcount performed almost two decades ago.

Related: Albatross chicks are in danger from tsunamis and rising seas

"The breeding numbers we counted were much lower than we anticipated, which could show us that the population is declining or it could show just that we had a particularly poor year. But this illustrates why you have to do this over several years, and doing it by satellite is going be a lot cheaper and more efficient," study lead author Dr Peter Fretwell said in a statement.

You might be wondering how scientists can tell one white speck from another, and how this translates to accurate information regarding albatrosses when many bird species are white, but it turns out there’s a way to get around that obstacle.

Scientists are already well aware of where these birds like to nest, so naturally, we already know where to look. It’s just a matter of keeping track of them and their movements so they don’t get mixed up with other birds.

Because their habitat in the Chatham islands is particularly difficult to get to, this satellite imagery gives scientists a break from hiking and rock climbing and lets them continue to do their work by studying from up above.

Related: How albatrosses are able to fly despite their huge bodies

Scientists used to have so much trouble venturing out to get to the creatures’ natural habitat, so the technology being used to count these creatures from space helps to save effort, funds, and time.

Source: BBC, The Independent

About the Author
  • Fascinated by scientific discoveries and media, Anthony found his way here at LabRoots, where he would be able to dabble in the two. Anthony is a technology junkie that has vast experience in computer systems and automobile mechanics, as opposite as those sound.
You May Also Like
DEC 22, 2020
Plants & Animals
Australia's Ancient Swamp King
DEC 22, 2020
Australia's Ancient Swamp King
Just a few million years ago, a prehistoric crocodile that was more than 16 feet long was the king of swamps in southwes ...
MAR 05, 2021
Plants & Animals
Scientists Heal Diseased Corals
MAR 05, 2021
Scientists Heal Diseased Corals
The world's coral reefs face numerous threats, including climate change, pollution, and habitat loss. Since 2014, an ...
MAR 22, 2021
Clinical & Molecular DX
Good Dog! Man's Best Friend Sniffs Out Prostate Cancer.
MAR 22, 2021
Good Dog! Man's Best Friend Sniffs Out Prostate Cancer.
Trained dogs can spot aggressive prostate cancers by detecting trace amounts of chemical biomarkers in urine samples, sa ...
MAR 25, 2021
Microbiology
Good Microbes Can Help Plants Withstand Heat
MAR 25, 2021
Good Microbes Can Help Plants Withstand Heat
Bacteria live everywhere, and we're starting to understand how they affect the biology of animals and plants. This comes ...
APR 01, 2021
Microbiology
Mapping the Wild Microbiome to Search for Therapeutic Agents
APR 01, 2021
Mapping the Wild Microbiome to Search for Therapeutic Agents
Many people think of bacteria as disgusting germs, but there are plenty of important bacterial species that provide us w ...
MAY 05, 2021
Genetics & Genomics
DNA From 2,000 Year Old Extinct Date Palms is Sequenced
MAY 05, 2021
DNA From 2,000 Year Old Extinct Date Palms is Sequenced
Researchers have taken 2,000 years old date palm seeds that were gathered from archaeological sites and used them to gro ...
Loading Comments...