April 12, 2021
From The Free
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Exposing the Big Game

(vlad61/iStock/Getty Images)NATURE

https://www.sciencealert.com/we-may-be-heading-for-a-mass-extinction-event-if-marine-life-continues-to-flee-the-equator

ANTHONY RICHARDSON ET AL., THE CONVERSATION10 APRIL 2021

The tropical water at the equator is renowned for having the richest diversity of marine life on Earth, with vibrant coral reefs and large aggregations of tunas, sea turtles, manta rays, and whale sharks. The number of marine species naturally tapers off as you head towards the poles.

Ecologists have assumed this global pattern has remained stable over recent centuries – until now.Our recent studyfound the ocean around the equator has already become too hot for many species to survive, and that global warming is responsible.

In other words, the global pattern is rapidly changing. And as species flee to cooler water towards the poles, it’s likely to have profound implications for marine ecosystems and human livelihoods. When the same thing happened 252 million years ago, 90 percent of all marine species died.

The bell curve…

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