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International Botanical Congress Statement on Biodiversity
Cretaceous Period and the Mesozoic Era, which coincided with the loss of ... depletion of genetic variation in individual plant species causes them to become more vulnerable to extinction, according to the paper. Genetically diverse traits in plants can often enable them to grow ...
www.rbg.ca

March 2, 2004: The Sixth Great Extinction
Then about 245 million years ago, up to 95 percent of all animalsnearly the entire ... mass extinctions are volcanic eruptions, meteorites colliding with the earth, and a changing climate. After each extinction, it took upwards of 10 million years for biological richness to recover. Yet once a ...
www.earth-policy.org

March 5, 2002: Our Closest Relatives Are Disappearing
Gorilla populations have dropped to dangerously low levels, largely from illegal commercial bushmeat hunting. Fewer ... save other primates from being lost in what is considered the earth's sixth major extinction event, resources are needed to curb illegal logging and hunting. Illegal logging has ruined vast ...
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The Pelagic Shark Research Foundation - Biology
Modern human (H. sapiens sapiens) have exponentially increased the rate of extinction over the past 20,000 years and the last 10,000 years in particular. the past ... hundred years has really been devestating to the planet; the past century was a major global extinction event in terms of this planets ecology. It is now estimated that the larger class marine ...
www.pelagic.org

Evolution, Mass Extinctions, and Mass Speciations
Increased diversity occurs through time, and speciation follows each extinction event. Meanwhile, in spite of this overall increase of creatures, the number of four-footed ... of Illinois news story and Space Daily news story. Typical of the Signs of Mass Extinction, Iridium and Fern Spores Appear Before the Sudden Appearance of Much Larger, Meat-Eating Dinosaurs ...
livingcosmos.com

why
Since, according to Harvard biologist E. O. Wilson, we are in the midst of the largest extinction event in the history of Earth caused by our own destruction of habitat personal moral action to help slow such an event is heroic and benefits all life on Earth including human life . Those individuals who would go to jail to save ...
ecopsychology.org

EDGE of Existence :: Mammal Extinctions
EDGE Fellows Conserving Amphibians Conserving Mammals Print this page Email page Conserving Mammals Focal Species Threats Survey Methods Extinctions General Overview Our planet is experiencing a global mass extinction event driven by human activity.  Evolutionarily distinct species appear to be more threatened with extinction than expected by chance, and many have already disappeared forever. It ...
edgeofexistence.org

The Geology Department at The Field Museum
Museum on Expedition to East Greenland. Discover some of the richest Triassic-Jurassic age fossil plant deposits in the world. Learn about their importance in understanding the third-greatest mass extinction event in Earth history and future climate change! Meteorite shower hits Chicago suburbs First ever in heavily populated area A bright fireball was observed around midnight on Wednesday, March ...
fieldmuseum.org

Larry Brand Flouts the Grant System
Following the highest outflows of fresh water into southwest Florida's estuaries in the early 1990s, 38 percent of the coral reefs died. According to Lapointe, this "mass extinction event" has left just six percent of living coral. "It was like a fire raging out of control," Lapointe says now. "I ...
globalcoral.org

The Politics of Extinction by Paul watson of sea shepherd
Sixty-five million years ago, a natural cataclysmic event resulted in extinction of the dinosaurs. Even with a plant foundation intact, it took more than ... biological diversity assumes an intact zone of tropical forests to provide for new speciation after extinction. Today, the tropical rain forests are disappearing more rapidly than any other bio-region, ensuring ...
www.eco-action.org