Ecology
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Ecology and Biodiversity
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Pesticides linked to honeybee decline

Pesticides linked to honeybee decline | Ecology | Scoop.it

The common crop pesticide thiamethoxam (neonicotinoid systemic pesticide) has been shown for the first time to seriously harm bees by damaging their renowned ability to navigate home.

 

The new research strongly links the pesticides to the serious decline in honey bee numbers in the US and UK – a drop of around 50% in the last 25 years. The losses pose a threat to food supplies as bees pollinate a third of the food we eat such as tomatoes, beans, apples and strawberries.

 

Scientists found that bees consuming one pesticide suffered an 85% loss in the number of queens their nests produced, while another study showed a doubling in "disappeared" bees – those that failed to return from food foraging trips. The significance of the new work, published Science, is that it is the first carried out in realistic, open-air conditions.

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Shell accepts liability for two oil spills in Nigeria

Shell accepts liability for two oil spills in Nigeria | Ecology | Scoop.it
Shell faces a bill of hundreds of millions of dollars after accepting full liability for two massive oil spills that have devastated a Nigerian community of 69,000 people and may take at least 20 years to clean up.

Oil spill experts who have studied video footage of the spills at Bodo in Ogoniland say the spills could together be as large as the 1989 Exxon Valdez disater in Alaska when 10m gallons of oil was spilt. Until now, Shell has claimed that less than 40,000 gallons were spilt.

Papers seen by the Guardian show that following a class action suit in London over the past four months, the company has accepted responsibility for the double rupture in 2008 of the 50-year-old Bodo-Bonny trans-Niger pipeline that pumps 120,000 barrels of oil a day though the community.

Ogoniland is the small region of the Niger delta which threw out Shell in 1994 for its pollution but then saw eight of its leaders, including the writer Ken Saro-Wiwa, executed by the goverment.
The crude oil that gushed unchecked from the two Bodo spills which occurred within months of each other in 2008 has clearly devastated the 20 sq km network of creeks and inlets on which Bodo and as many as 30 other smaller settlements depend for food, water and fuel.

No attempt has been made to clean up the oil, which has collected on the creek sides, washes in and out on the tides and has seeped deep into the water table and farmland.
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