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Stories by John Platt

The Sciences

Another record year for manatee deaths

Frigid waters off the coast of Florida have killed a record number of endangered manatees this year, according to state wildlife officials. The manatee—full name, the West Indian manatee ( Trichechus manatus )—has been protected by the Endangered Species Act since 1974.As of December 10, 699 manatee deaths had been documented this year in Florida waters, 244 of which were attributed to "cold stress." Most of the year's deaths occurred in January during what the National Weather Service called Florida's coldest 12-day period since 1940.This year's death toll tops last year's record of 429 deaths, 56 of which were caused by unusually cold weather...

December 30, 2010 — John Platt
Evolution

Victory for sharks: U.S. bans shark finning

It won't get the same press as the repeal of Don't Ask, Don't Tell, but the U.S. made an important conservation leap this week by banning the deadly practice of shark finning.The Shark Conservation Act, passed Tuesday, bans the controversial yet lucrative fishing practice of catching sharks, cutting off their fins and dumping the still-living creatures back into the water where they slowly and painfully drown.Shark fins are highly prized for their use in shark fin soup...

December 22, 2010 — John Platt
Sustainability

Tracking a rare tortoise? There's an app for that

Smart phones have increasingly become valuable tools in the conservation of rare species around the world. The latest example is an iPhone app called Mojave Desert Tortoise, which people can use to help researchers preserve the endangered species it is named after.With the app, visitors to the Mojave Desert (which stretches between California, Nevada, Utah and Arizona) can take photos of any desert tortoises they happen to encounter...

November 30, 2010 — John Platt
The Sciences

British crayfish now officially endangered, thanks to killer fungus

Scientists and conservationists from around Europe will gather this week at a conference to discuss how to save the U.K.'s white-clawed crayfish ( Austropotamobius pallipes ) from the fungal plague that is rapidly wiping them out.As I wrote last year, around 95 percent of British crayfish have been killed in the past two decades, victims of imported American signal crayfish ( Pacifastacus leniusculus ), which were introduced into the U.K...

November 16, 2010 — John Platt
The Sciences

Mystery virus threatens an already critically endangered Australian parrot species

The orange-bellied parrot ( Neophema chrysogaster ), one of the world's most critically endangered birds, could lose its bid at survival as a virus threatens its vitally important captive breeding program.The unidentified stomach virus that has struck the program causes the birds to lose their feathers and weakens their immune systems, Shane Radial, a veterinary professor with Charles Sturt University, told the Australian Broadcasting Co...

November 11, 2010 — John Platt
Evolution

Extinction crisis revealed: One fifth of the world's mammals, birds and amphibians are threatened

One fifth of the world's vertebrates are threatened with extinction. That's the word from the 10th Conference of the Parties to the Convention on Biological Diversity this week in Nagoya, Japan, where a team of 174 scientists presented an assessment of the world's at-risk vertebrate species.According to the study, published in the October 28 issue of Science, the number of threatened species has grown dramatically in the past four decades, exceeding the normal "background rate" of extinction by a factor of two or three...

October 27, 2010 — John Platt
The Sciences

Asian coral die-off could be worst ever; Is climate change to blame?

A massive coral bleaching event in Southeast Asian reefs in the Indian and Pacific oceans is the worst coral die-off since 1998, and possibly the worst science has ever observed, says Andrew Baird of the ARC Center of Excellence for Coral Reef Studies at James Cook University.Bleaching occurs when environmental factors stress the living organisms residing within coral reefs, causing them to either leave their reef structures or die...

October 22, 2010 — John Platt
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