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bananas

(27,509 posts)
Sun Apr 22, 2012, 08:29 AM Apr 2012

Chernobyl radiation fells female birds, making chirping more frequent from lonely bachelors

http://phys.org/news/2012-04-chernobyl-fells-female-birds-chirping.html

Chernobyl radiation fells female birds, making chirping more frequent from lonely bachelors
April 20, 2012 By Steven Powell

<snip>

Counting the number of birds singing in each area, the researchers found that the percentage chirping was higher in the more contaminated areas. Given the relative dearth of females in those areas, the team concluded that lonely bachelors were spending more time calling out for mates.

That observation means that some earlier Chernobyl data might beg an even more stark interpretation. "When we did the original censuses, the standard method for doing a bird count is birds that you can either see or hear," Mousseau said. "So our early estimates of abundance were probably overestimates in the contaminated areas."

The data also showed higher percentages of yearlings, rather than more mature birds, in the areas of higher contamination.

<snip>

"Within the Chernobyl zone, it's very heterogeneous – where the contamination levels are high, there are far fewer birds."

<snip>


http://worldnews.msnbc.msn.com/_news/2012/04/19/11289469-fewer-female-birds-after-chernobyl-study-finds-same-true-at-fukushima

Fewer female birds after Chernobyl, study finds; same true at Fukushima?

By Miguel Llanos, msnbc.com

<snip>

The proportion of female birds has fallen off since the 1986 disaster at Chernobyl, the study found, and that appears to be causing male birds to increase their chirping in efforts to find a mate.

"The Chernobyl zone is a population sink, or an ecological trap, that brings in new birds each year but these birds suffer lower survival," co-author Tim Mousseau, a University of South Carolina biologist, told msnbc.com.

<snip>

"In the more contaminated areas, most birds were yearlings, suggesting that survival rates were significantly lower in these areas than in clean ones."

"Sex ratios in the contaminated areas were significantly skewed towards males, reflecting higher mortality rates for females," he added. "In birds, females invest heavily in making large eggs, and these data suggest this investment comes at a cost of lower life span."

<snip>

He's expecting even worse results at Fukushima.

<snip>


http://enformable.com/2012/04/scientists-find-the-effects-of-radiation-cause-birds-in-chernobyls-most-affected-areas-to-sing-more/

<snip>

Adult survival rate for male barn swallows in areas of Ukraine impacted by the Chernobyl accident was 0.327, while it was 0.431 in uncontaminated control areas, equaling a reduction by 24%

For females the corresponding estimates were 0.233 and 0.542, respectively, or a reduction by 57%. This sex by radiation effect was highly significant implying that females suffered disproportionately from high levels of radiation.

<snip>

In July of 2011, scientists in Japan identified and counted birds at 300 locations in Fukushima Prefecture between 15 and 30 miles (25 and 48 km) from the nuclear complex. Most of these areas were still open to human occupation and were experiencing external radiation levels from 0.5 to 35 microsieverts per hour.

The team compared the results to their similar investigation in the Chernobyl Exclusion Zone between 2006 and 2009, 20 to 23 years after that nuclear disaster.

The findings showed, just as in the Ukraine, the bird community in Fukushima declined significantly in the more contaminated areas.

For 14 species of birds that appeared in both Fukushima and Chernobyl, the decline in population size was more pronounced at Fukushima than Chernobyl.

<snip>




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Chernobyl radiation fells female birds, making chirping more frequent from lonely bachelors (Original Post) bananas Apr 2012 OP
Chernobyl and Fukushima continue Monsanto's Rape of our Planet chervilant Apr 2012 #1

chervilant

(8,267 posts)
1. Chernobyl and Fukushima continue Monsanto's Rape of our Planet
Sun Apr 22, 2012, 01:29 PM
Apr 2012

Monsanto and other ginormous Agribusinesses--and related mega-corporations--have long been responsible for the decimation of various bird populations.

Here's what "technological breakthroughs in agriculture" have done for the human race:

~heavy metal pollution in virtually all of our groundwater

~inexplicable declines in honeybee populations

~nutritional deficiencies in almost every fruit or vegetable harvested since the 70s

~vast swaths of soil erosion and silt runoff

~measurable declines in the quality and flavor of most produce

~GLOBAL monopolies on seed stock

~unknown effects from GMO technology, which the manufacturers are NOT required to discuss OR disclose

~cross contamination of vegetable foodstuffs from cattle and dairy operations

~inhumane treatment of cattle, sheep, goats, pigs, calves, chickens, turkeys, geese and ducks

~declines in songbird populations--and many other members of our planet

Gosh, I could continue this list for HOURS and not finish... However, I'll conclude by observing that organic gardening (particularly, biointensive gardening) can achieve the same or better yields, without the myriad negative consequences that are part and parcel of our "scientific community's" much vaunted "modern agricultural practices."

(Monsanto has been on the receiving end of much negative press and censure, from the mid-60s when they tried to vilify Rachel Carson, to the present day, when documentaries like 'Food, Inc.' substantiate how vile are their 'standard business practices.')

The Corporate Megalomaniacs--including TEPCO and the IAEA--know EXACTLY what they're doing. AND, they don't give a rat's ass about the rest of us, beyond our utility as service industry drones or factory fodder. Why should they bother to educate us, when they can more easily anesthetize us with drugs and television?

We are well and truly f***ed, and most of us don't even realize it.

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