homehome Home chatchat Notifications


Half of Amazon rainforest tree species threatened by deforestation

The Amazon basin is home to the world's great biodiversity. You'll find more plant and animal species per square foot than anywhere else in the world. It's truly one of the wildest and life teeming places in the universe, which given humans' habit of meddling makes it one of the most vulnerable as well. The huge 6-million-square-kilometer rainforest area remains mostly unstudied, due to the roughness and inaccessibility of the land. But making their way through the outskirts are the chainsaws and sawmills; and they're moving fast. Since 2000 an area equal to 50 football pitches has been destroyed every minute in the Amazon rainforest, satellite imagery revealed.

Tibi Puiu
November 23, 2015 @ 6:33 am

share Share

The Amazon basin is home to the world’s greatest biodiversity. You’ll find more plant and animal species per square foot than anywhere else in the world. It’s truly one of the wildest and life teeming places in the universe, which given humans’ habit of meddling makes it one of the most vulnerable as well. The huge 6-million-square-kilometer rainforest area remains mostly unstudied, due to the roughness and inaccessibility of the land. But making their way through the outskirts are the chainsaws and sawmills; and they’re moving fast. Since 2000 an area equal to 50 football pitches has been destroyed every minute in the Amazon rainforest, satellite imagery revealed.

amazon rainforest

The environmental consequences are stark. The Amazon rainforest acts like a huge carbon sink, and destroying it will cause more carbon emissions to stay in the atmosphere, further warming the planet. Loss of habitat will force many species of animals into extinction, but also tree species themselves. Scientists estimate that there are between 11,000 and 15,000 tree species in the Amazon and deforestation could threatened more than half of them, according to massive field study which involved  160 botanists, ecologists, and taxonomists from 97 institutions.

Researchers surveyed 1,485 sites in the Amazon basin and identified  4,953 tree species. Using a biodiversity model, the researchers inferred that there must be another 10,000 tree species, especially towards the isolated center where few humans reside, but vegetation is very dense. The maps were then compared to deforestation maps to assess how tree species might be threatened under two scenarios: business as usual (deforestation continues unabated at its current pace) and an Amazon friendly scenario, in which government and corporations work together to steadily stop logging.

If the status quo is preserved, 51 percent of the Amazon’s common tree species’ populations and 43 percent of rare tree species’ populations would decline by 30 percent or more. That’s enough for them to be included in the  International Union for Conservation of Nature‘s “Red List” of threatened species. Even under the less severe scenario, 16 percent of common species and 25 percent of rare species will qualify under the ‘Red List’. ‘

“We overlay spatial distribution models with historical and projected deforestation to show that at least 36% and up to 57% of all Amazonian tree species are likely to qualify as globally threatened under International Union for Conservation of Nature (IUCN) Red List criteria. If confirmed, these results would increase the number of threatened plant species on Earth by 22%,” the researchers conclude in the study’s abstract.

Remember, the Amazon basin is home to:

  • 1/3 of the world’s species;
  • 1/4 of the world’s freshwater;
  • 1/5 of the world’s forests;
  • 48 billion tons of carbon dioxide in its trees;
  • 200 indigenous and traditional communities.

It’s paradise on Earth, yet we’re destroying the rainforest bit by bit. Luckily, there is hope. Things are changing. In Brazil,  the deforestation rate last year was roughly 75% below the average for 1996 to 2005, thanks to commendable efforts from behalf of the government. Brazil’s experience suggests that humanity has a chance to control agricultural expansion and preserve the planet’s most diverse ecosystems.

 

 

share Share

Scientists Found That Bending Ice Makes Electricity and It May Explain Lightning

Ice isn't as passive as it looks.

The Crystal Behind Next Gen Solar Panels May Transform Cancer and Heart Disease Scans

Tiny pixels can save millions of lives and make nuclear medicine scans affordable for both hospitals and patients.

Satellite data shows New York City is still sinking -- and so are many big US cities

No, it’s not because of the recent flooding.

How Bees Use the Sun for Navigation Even on Cloudy Days

Bees see differently than humans, for them the sky is more than just blue.

Scientists Quietly Developed a 6G Chip Capable of 100 Gbps Speeds

A single photonic chip for all future wireless communication.

This Teen Scientist Turned a $0.50 Bar of Soap Into a Cancer-Fighting Breakthrough and Became ‘America’s Top Young Scientist’

Heman's inspiration for his invention came from his childhood in Ethiopia, where he witnessed the dangers of prolonged sun exposure.

Pluto's Moons and Everything You Didn't Know You Want to Know About Them

Let's get acquainted with the lesser known but still very interesting moons of Pluto.

Japan Is Starting to Use Robots in 7-Eleven Shops to Compensate for the Massive Shortage of Workers

These robots are taking over repetitive jobs and reducing workload as Japan combats a worker crisis.

This Bizarre Martian Rock Formation Is Our Strongest Evidence Yet for Ancient Life on Mars

We can't confirm it yet, but it's as close as it gets.

A small, portable test could revolutionize how we diagnose Alzheimer's

A passive EEG scan could spot memory loss before symptoms begin to show.