Honeybee Die-Offs

  • Researcher Dennis VanEngelsdorp says the rates of honeybee die-offs threaten the beekeeping business. (Photo courtesy of the NBII)

Beekeepers expect about fifteen percent of their bees to die every winter. But for the past few winters they’ve seen die-offs of thirty percent or more. Mark Brush reports on a new survey that’s keeping track of honeybee losses:

Transcript

Beekeepers expect about fifteen percent of their bees to die every winter. But for the past few winters they’ve seen die-offs of thirty percent or more. Mark Brush reports on a new survey that’s keeping track of honeybee losses:

This is the fourth year in a row that beekeepers have see die-offs this high. The survey was done by the USDA and the Apiary Inspectors of America.

Dennis VanEngelsdorp was one of the researchers who conducted the survey. He says the rates of honeybee die-offs threaten the beekeeping business – and that’s important because honeybees pollinate about a third of the foods we eat:

“If we want to produce fruits and vegetables in this country, we need to have honeybees and we need a pollination force. And without those, we won’t be able to produce those in this country. So we’re not going to starve, but certainly the variety in our diet will change.”

Most of the beekeepers blamed the latest deaths on bad weather in the fall and winter. VanEngelsdorp says you can add to that habitat destruction that hurts the bees’ food supplies; invasive mites that spread disease – and the still unexplained problem of Colony Collapse Disorder.

For The Environment Report, I’m Mark Brush.

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EPA Restricts Rodent Pesticide

  • New regulations will keep certain pesticides out of residential areas, hospitals, and daycare centers or schools.(Photo courtesy of Ordered Chaos CC-2.0)

The feds are cracking down on a pesticide linked to the deaths of two little girls. Lester Graham reports the poison is used to kill burrowing rodents.

Transcript

The feds are cracking down on a pesticide linked to the deaths of two little girls. Lester Graham reports the poison is used to kill burrowing rodents.

The Environmental Protection Agency is restricting use of the pesticide after two young girls in Utah, a four-year-old and a 15-month-old, died. Phosphine fumigants in the form of poisoned pellets had been used near their home. With this new restriction, the pesticide cannot be used in residential areas.

“It’s not okay at all.”

Marty Monell is the EPA’s Deputy Director of the Office of Pesticide Programs.

“So, there’s no residential use, no use around hospitals or daycare centers or schools.”

The one exception is on athletic fields with certain restrictions.
Those pesticides can still be used to kill bugs in grain bins and silos and for rodents on farms and orchards.

For The Environment Report, I’m Lester Graham.

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H1N1 Flu Still Around

  • This fall, the H1N1 vaccine will be combined with the regular flu shot. (Photo courtesy of the Center for Disease Control and Prevention)

You might think the flu season is over, but H1N1 flu is still around. Rebecca Williams reports health officials still want you to get vaccinated against the virus:

Transcript

You might think the flu season is over, but H1N1 flu is still around. Rebecca Williams reports health officials still want you to get vaccinated against the virus:

H1N1 flu peaked in the U-S last October and November.

The Centers for Disease Control and Prevention estimates through the middle of January, 57 million Americans got sick and 12-thousand people died.

Right now, most of the people getting sick with H1N1 are in the Southeastern U-S.

Tom Skinner is with the CDC.

“We wouldn’t be surprised to see activity continue into the spring and early summer. How much activity we may see moving forward into the fall and winter it’s just hard to tell.”

He says anyone who hasn’t gotten the vaccine should. Especially people with the greatest risk of complications from the flu. Those are pregnant women, kids younger than 5 years old and adults older than 65.

This fall, the H1N1 vaccine will be combined with the regular flu shot.

For The Environment Report, I’m Rebecca Williams.

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Turbines and Bats: A Deadly Combo

  • Many bats are being killed by wind turbines (Photo courtesy of the US Fish and Wildlife Service)

The wind turbine industry has made
changes to reduce the number of birds killed
by the spinning blades. But scientists are
finding that more bats are being killed.
Rebecca Williams reports one research team
thinks it now knows why:

Transcript

The wind turbine industry has made
changes to reduce the number of birds killed
by the spinning blades. But scientists are
finding that more bats are being killed.
Rebecca Williams reports one research team
thinks it now knows why:

It’s been a mystery why bats are getting killed by wind turbines. They’re
usually great at avoiding collisions because they sense moving objects
even better than still ones.

A team from the University of Calgary looked at dead bats near
turbines. They found that 90% of the bats had internal bleeding.

Erin Baerwald is the lead author of the study. She says there’s a sudden
drop in pressure near the tips of the turbine blades. And when bats fly
close enough, the pressure drop makes their lungs over-expand and
burst. She thinks the bats are attracted to the turbines.

“Maybe they see these tall turbines as trees.”

That’s because most of the bats that are getting killed are tree roosting
bats.

Baerwald says researchers are looking at ways to change turbines to
avoid killing bats.

For The Environment Report, I’m Rebecca Williams.

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