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| subject: | Re: Chernobyl becomes wildlife haven |
From: Gary Britt Maybe whole new strains of radioactive resistant wildlife will develop. Maybe Chernobyl is God's way of making sure some wildlife survives the end times. Gary Rich Gauszka wrote: > "Our studies show that a dynamic ecosystem is present in even the most > radioactive habitats," > > or > > "From every rock we turn over, we find consequences," > > http://news.yahoo.com/s/ap/20070607/ap_on_re_eu/chernobyl_wildlife_4;_ylt=AiK 0XmmLlgEfPElfQS5olKhkM3wV > > > PARISHEV, Ukraine - Two decades after an explosion and fire at the > Chernobyl nuclear power plant sent clouds of radioactive particles > drifting over the fields near her home, Maria Urupa says the wilderness > is encroaching. Packs of wolves have eaten two of her dogs, the > 73-year-old says, and wild boar trample through her cornfield. And she > says fox, rabbits and snakes infest the meadows near her tumbledown > cottage. > > I've seen a lot of wild animals here," says Urupa, one of about 300 > mostly elderly residents who insist on living in Chernobyl's > contaminated evacuation zone. > > The return of wildlife to the region near the world's worst nuclear > power accident is an apparent paradox that biologists are trying to > measure and understand. > > Many assumed the 1986 meltdown of one reactor, and the release of > hundreds of tons of radioactive material, would turn much of the > 1,100-square-mile evacuated area around Chernobyl into a nuclear dead zone. > > It certainly doesn't look like one today. > > Dense forests have reclaimed farm fields and apartment house courtyards. > Residents, visitors and some biologists report seeing wildlife — > including moose and lynx — rarely sighted in the rest of Europe. Birds > even nest inside the cracked concrete sarcophagus shielding the > shattered remains of the reactor. > > Wildlife has returned despite radiation levels in much of the evacuated > zone that remain 10 to 100 times higher than background levels, > according to a 2005 U.N. report — though they have fallen significantly > since the accident, due to radioactive decay. > > Some researchers insist that by halting the destruction of habitat, the > Chernobyl disaster helped wildlife flourish. Others say animals may be > filtering into the zone, but they appear to suffer malformations and > other ills. > > Both sides say more research is needed into the long-term health of a > variety of Chernobyl's wildlife species, as governments around the world > consider switching from fossil fuel plants, blamed for helping drive > global climate change, to nuclear power. > > Biologist Robert J. Baker of Texas Tech University was one of the first > Western scientists to report that Chernobyl had become a wildlife haven. > He says the mice and other rodents he has studied at Chernobyl since the > early 1990s have shown remarkable tolerance for elevated radiation levels. > > But Timothy Mousseau of the University of South Carolina, a biologist > who studies barn swallows at Chernobyl, says that while wild animals > have settled in the area, they have struggled to build new populations. > > Far from thriving, he says, a high proportion of the birds he and his > colleagues have examined suffer from radiation-induced sickness and > genetic damage. Survival rates are dramatically lower for those living > in the most contaminated areas. > > In explaining their starkly differing views, Baker and Mousseau > criticize each other's studies as poorly designed. > > But their disagreement also reflects a deeper split among biologists who > study the effects of exposure to radiation. Some, like Baker, think > organisms can cope with the destructive effects of radiation up to a > point — beyond which they begin to suffer irreparable damage. Others > believe that even low doses of radiation can trigger cancers and other > illnesses. > > In the Journal of Mammology in 1996, Baker and his colleagues reported > that the disaster had not reduced either the diversity or abundance of a > dozen species of rodents — including mice, shrews, rats and weasels — > near the Chernobyl plant. > > "Our studies show that a dynamic ecosystem is present in even the most > radioactive habitats," they wrote. > > Baker's group reported sighting red fox, gray wolf, moose, river otter, > roe deer, Russian wild boar and brown hare within a six-mile radius of > the plant — the most heavily contaminated area. > > Genetic tests showed Chernobyl's animals suffered some damage to their > DNA, Baker and his colleagues reported. But they said overall it didn't > seem to hurt wildlife populations. > > "The resulting environment created by the Chernobyl disaster is better > for animals," Baker told the Associated Press in a phone interview. > > Critics point out that Baker's work has been funded by the U.S. > Department of Energy, which some view as pro-nuclear. Baker defended the > government connection, saying, "We have never been asked to come up with > any specific conclusions, just do honest work." He also said his work > has been peer-reviewed. > > Mousseau and his colleagues have painted a far more pessimistic picture. > > In the journal Biology Letters in March, a group led by Anders Moller, > from Pierre and Marie Curie University in Paris, said that in a study of > 7,700 birds examined since 1991 they found 11 rare or unknown > abnormalities in a population of Chernobyl's barn swallows. > > Roughly one-third of 248 Chernobyl nestlings studied were found to have > ill-formed beaks, albino feathers, bent tail feathers and other > malformations. Mousseau was a co-author of the report. > > In other studies, Mousseau — whose work is funded by the > National Science Foundation and > National Geographic Society — and his colleagues have found increased > genetic damage, reduced reproductive rates and what he calls > "dramatically" higher mortality rates for birds living near Chernobyl. > > The work suggests, he said, that Chernobyl is a "sink" where animals > migrate but rapidly die off. Mousseau suspects that relatively low-level > radiation reduces the level of antioxidants in the blood, which can lead > to cell damage. > > "From every rock we turn over, we find consequences," he told the > Associated Press in a phone interview. "These reports of wildlife > flourishing in the area are completely anecdotal and have no scientific > basis." > > While the experts debate, Maria Urupa, harvests tomatoes from her > garden, buys fish from the nearby Pripyat River and brews moonshine vodka. > > Eating locally produced food is risky, health experts agree, because > plants and animals can concentrate radioactive materials as they cycle > through the food chain. Doe she fear the effects of her exposure to > radiation? > > "Radiation? No!" she said. "What humans do? Yes." --- BBBS/NT v4.01 Flag-5* Origin: Barktopia BBS Site http://HarborWebs.com:8081 (1:379/45) SEEN-BY: 633/267 5030/786 @PATH: 379/45 1 633/267 |
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