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Grade 12 Environmental Management
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Bees going into their hive
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Honey Bees Make Honey Honey has natural preservatives and bacteria cannot grow on it 20 000 – 50 000 bees in a hive during the summer It takes 556 worker bees visiting 2 million flowers to make 1 lb. of honey Its delicious! Source: Ontario Beekeepers Association
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Seventy of the top 100 human food crops are pollinated by bees Supply 90 percent of the world nutrition or pollinate $350 billion worth in global food A single bee colony can pollinate 300 million flowers per day Bees are extremely important to our existence! Source: EcoNews Bee Importance as Pollinators
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Queen Drones Workers Types of Honey Bees
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Only she can lay eggs, approx. 1500 eggs per day She uses pheromones to communicate and organize her hive She eats royal jelly – a milky substance produced by the workers Source: Ontario Beekeepers Association The Queen
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Male bees – they do not have a stinger and have larger eyes than workers Can fly 14 kms away from hive They develop from eggs that have not been fertilized Their job is to impregnate a queen from different hives Meet other drones in “drone congregations” to communicate – Die after breeding, a live for approx. 90 days. Get kicked out of the hive in the fall – free loaders Source: Ontario Beekeepers Association Drones
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All females Duties include cleaning, feeding the baby bees, feeding and taking care of the queen, packing pollen and nectar into cells, capping cells, building and repairing honeycombs, fanning to cool the hive and guarding the hive Their flying radius is 7 km and must gather food within that area Source: Ontario Beekeepers Association Worker Bees
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250 billion honeybees have died as a result of planetary mismanagement by humans Typically 5 -10% of bees within a colony will die off each winter Globally, since 2006 there has been 30 -40% die offs of bees Some beekeepers have lost 90% of their populations And no one really has the answer why!! Bee Colony Collapse
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Time Magazine Headline: Aug 19 th – 2013 The Worlds Largest New Magazine – 25 million readers
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Ontario Premier Kathleen Wynne has created a task force to identify the problem and identify possible solutions Though the cancelled gas plants gave you a Headache? Dangerous Issue
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2 main theories Varroa MitesNeonicotinoids
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Suck the blood of drones and developing bees Emerging bees have missing legs Takes 1000 mites to kill 50 000 honey bees North American beekeepers do not think mites are killing their bees Varroa mites
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An insecticide coating for grain seeds to be planted The most widely used insecticide in the world making up 80% of all seed treatments – a $1.2 billion industry Attack the central nervous system of insects Watch CBC Video Watch CBC Video Some colonies have 70% of bees testing positive for neonictonoids residues Neonictonoids
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Has put a two – year moratorium (a complete ban) on all neonictonoids within the European Union As a result Bayer CropScience of Germany and Syngenta of Switzerland, have brought legal action against the EU’s decision= sueing Claim neonictonoids when used properly, pose no risk – the science is flawed “The Commission should now take the opportunity to address the real reasons for bee health decline: disease, viruses and loss of habitat and nutrition.“ Luke Gibbs, Syngenta Results: The E.U
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Colony collapse of honey bees is a global issue that needs to remedied quickly The large multi-national seed corporations are involved (Monsanto, Syngenta, Bayer, Land O Lakes) - $50 Billion in annual sales The EU moratorium in Aug, 2013 on neonictonoids has resulted in two lawsuits against the European Union What are your thoughts? Conclusion -
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