Archive for July, 2014

Back From the Dead: Why De-Extinction May Save Humanity

Publication: NBC News   Date: July 24, 2014   View Article

If current trends continue, elephants, giraffes, and zebras could go extinct in the not-too-distant future.

Rodents teeming with parasites that carry black plague would fill the void, suggests ongoing research in Africa. If so, the threat to human health could prompt the tantalizingly feasible solution of de-extinction — that is, resurrecting the big animals and releasing them back into the wild.

De-extinction for conservation purposes is a “matter of when, not if,” said Philip Seddon, a zoologist at the University of Otaga in New Zealand. “We need to think very hard about which are the good candidate species.”

As Californians Pump Groundwater, Land Sinks and Aquifers Shrink

Publication: NBC News   Date: July 15, 2014   View Article

So much water is being pumped from the ground in parched California that the land is sinking, according to scientists.

The more Californians rely on groundwater, the worse these problems will get, experts across industry, government, and academia say. But, they said, the pumping is likely to continue given a confluence of factors that range from urban population growth to an expanding agricultural industry.

Frogs Get Their Shots: Vaccination May Curb Lethal Fungus

Publication: NBC News   Date: July 9, 2014   View Article

Around the world, the rapid spread of a pathogenic fungus has sent frogs and other amphibians hopping toward extinction. Hope for their survival may come in the form of vaccination programs similar to those that protect humans from contagious diseases, according to a new study.

No, this doesn’t mean that newborn tadpoles will be paying a visit to the veterinarian for a round of shots, or that conservationists with mini-syringes will be mucking through rain forests in search of frogs. But the reality isn’t all that different.

Hundreds of amphibians already have been removed from habitats contaminated with the fungus Batrachochytrium dendrobatidis, which causes chytridiomycosis — the fungal disease implicated in the global amphibian decline. One route is to vaccinate these captive-bred amphibians, explained Jason Rohr, an ecologist at the University of South Florida and the study’s senior author.

Neonicotinoid Pesticide Linked to Decline of Birds (and Bees)

Publication: NBC News   Date: July 9, 2014   View Article

A controversial agricultural insecticide that has been implicated in the collapse of bee colonies around the world also appears to be causing bird populations to drop, according to a new study. The insecticides known as neonicotinoids are designed to attack the central nervous system of insects that devour crops, but only about 5 percent of the chemical compound stays on the plant. The rest leaches into the soil and water, where it does its magic on other bugs, the researchers said.

© 2008-2010 Collected Writings By John Roach