Posted by: Michael Ritter PhD | June 5, 2006

News Roundup

Alien Iguanas Overrun Florida Island

“By July the panel must submit their plan’s budget, which will determine the size of the “iguana tax” Boca Grande residents must pay.”

“According to Janes, the community has only recently become concerned about the iguanas. He says that in 1997 residents believed the invasive species was harmless and turned down an offer from the county to get rid of the iguanas.”

Read article at National Geographic
[TPE link:”Habitat occupation“]

N. Dakota Park Honors Prairie-Loving President

“Life wasn’t always a teddy bears’ picnic for former U.S. president Theodore Roosevelt. But when the going got tough, Roosevelt got back to basics to rejuvenate his spirit in the backcountry of North Dakota.”

View video at National Geographic
[TPE link: “Grassland Biome“]

Big Bang In Antarctica: Killer Crater Found Under Ice

“Planetary scientists have found evidence of a meteor impact much larger and earlier than the one that killed the dinosaurs — an impact that they believe caused the biggest mass extinction in Earth’s history.”

“The 300-mile-wide crater lies hidden more than a mile beneath the East Antarctic Ice Sheet. And the gravity measurements that reveal its existence suggest that it could date back about 250 million years — the time of the Permian-Triassic extinction, when almost all animal life on Earth died out.”

“Its size and location — in the Wilkes Land region of East Antarctica, south of Australia — also suggest that it could have begun the breakup of the Gondwana supercontinent by creating the tectonic rift that pushed Australia northward.”

Read article at Science Daily
[TPE Link: “Plate Tectonics and Continental Drift”]

Ecosystems With Many Plant Species Produce More And Survive Threats Better

“Ecosystems containing many different plant species are not only more productive, they are better able to withstand and recover from climate extremes, pests and disease over long periods, according to a new study. It is the first experiment to gather enough data–over a sufficient time and in a controlled environment–to confirm a 50-year scientific debate about whether biodiversity stabilizes ecosystems.”

Read article at Science Daily
[TPE link: “Plant Succession“]

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