Tuesday, April 9, 2019
Bees Disappearance Essay Example for Free
Bees Disappearance EssayA red-hot federal report blames a combination of problems for a mysterious and dramatic disappearance of U. S. honeybees since 2006. The intertwined factors cited include a parasitic mite, multiple viruses, bacteria, poor nutrition, genetics, habitat loss and pesticides. The multiple causes make it heavy(p)er to do something ab forth whats called settlement collapse disorder, experts say. The disorder has caused as much as one-third of the nations bees to full disappear each overwinter since 2006. Bees, especially honeybees, ar needed to pollinate crops. The federal report, issued Thursday by the Agriculture Department and the environmental Protection Agency, utter the biggest culprit is the parasitic mite varroa destructor, calling it the single most detrimental pest of honeybees. The problem has also hit bee colonies in Europe, where regulators are considering a ban on a typewrite of pesticides known as neonicotinoids that some environmental gr oups blame for the bee collapse. The U. S. report cites pesticides, but near the bottom of the magnetic dip of factors. And federal officials and detectives advising them verbalize the science doesnt justify a ban of the pesticides yet.May Berenbaum, a top bee researcher from the University of Illinois, said in an interview that she was extremely dubious that banning the pesticide would have any effect on bee health. She participated in a large conference of scientists that the government brought together last year to figure out whats going on, and the new report is the result of that conference. Berenbaum said more than 100 different chemicals not just the pesticides that may be banned in Europe have been found in bee colonies. Scientists find it hard to calculate how they react in different dosages and at different combinations, she said.Some of these chemicals harm the immune systems of bees or amplify viruses, said Penn State University bee expert Diana Cox-Foster. At a ne ws conference Thursday, Sonny Ramaswamy, a top USDA official, said the scientific consensus is that there are multiple factors and you cant parse any one out to be the smoking gun. USDA bee researcher Jeff Pettis also cited modern farming practices that much leave little forage area for bees. Dave Gaulson of the University of Stirling in Scotland, who conducted a study last year that regard the chemical, said he cant disagree with the overall conclusions of the U.S. government report.However, he said it could have exclamatory pesticides more. The environmental group, Pesticide Action Network North America blasted the federal government for not following(a) Europes lead in looking at a ban of certain pesticides. Pollinators, like honeybees, are of import to the U. S. food supply. About $30 billion a year in agriculture depends on their health, said Ramaswamy. Besides making honey, honeybees pollinate more than 90 flowering crops. Among them are a variety of fruits and vegetable s apples, nuts, avocados, soybeans, asparagus, broccoli, citrus fruit fruit and cranberries.About one-third of the human diet comes from insect-pollinated plants, and the honeybee is responsible for 80 percent of that pollination. It affects close to every American whether they realize it or not, said EPA acting administrator Bob Perciasepe. Zac Browning, a fourth-generation commercialized beekeeper who has hives in Idaho, North Dakota and California, said the nation is on the brink of not having comely bees to pollinate its crops. University of Maryland entomologist David Inouye, who was not part of the federal report, said he agrees that there are multiple causes. Its not a simple situation.If it were one factor we would have identified it by now, he said. Inouye, president-elect of the Ecological Society of America, said the problems in Europe and United States may be slightly different. In America, bee hives are trucked from farm to farm to pollinate large tracts of land and that may help disruption the parasites and disease, as well as add stress to the colonies, while in Europe they stay clothe so those issues may not be as big a factor. At the news conference, Berenbaum said theres no single solution to the U. S. bee problem Were not really well equipped or compensate used to fighting on multiple fronts.
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