2012年1月14日星期六

Another Year Of Disappearing Honey Bees 01

  The 2008 calendar indicates that another spring has arrived in North America and the signs of the new season are everywhere. Buds have appeared on trees, heralding the arrival of new leaves. The increased daylight and the warming sun act as harbingers for the appearance of flowering plants that will soon begin their summer cycle of growth. Nurseries and home improvement stores; such as, Home Depot and Loews, are selling plants, rakes, shovels, mulch, and fertilizer. Indeed, the familiar signs of spring are everywhere. However, once again this year, there is a real problem in nature which is tempering agricultural enthusiasm for the upcoming growing season.

  It is a problem that was first identified in 2006. The problem continues to be the disappearance of the honey bee. Once again there is little progress to report from research into this mystery surrounding the honey bee called Colony Collapse Disorder (CCD). CCD occurs when all adult bees disappear from the hive, leaving the honey and pollen behind. Few, if any, dead bees are found around the hive. Between 50 and 90% of the commercial honey bee (Apis mellifera) colonies in the United States have been afflicted with CCD and the problem is making it difficult for U.S. commercial beekeepers to pollinate crops.

  About a quarter of beekeeping operations were affected by CCD during the 2006-2007 winter alone. It is estimated that up to 70% of honey bees in the United States have just disappeared due to Colony Collapse Disorder. The problem has continued during the winter of 2007-2008.In addition to the ongoing problem of CCD, consider that news reports indicate significant regional problems with dying honey bees this spring in the United States. In Hawaii, a microscopic mite is devastating Oahu's honey bee population and the long term affects could wipe out much of the island's agriculture.

  Western Washington State has a developing agricultural crisis as bees are dying from a new pathogen called Nosema Ceranae. This fungus attacks the bee's gut, making it impossible to process food and the bee eventually starves to death. In general, the various problems with disappearing and dying honey bees are rapidly taking a toll on the entire United States beekeeping industry. It has been reported that the number of keepers who produce more than 6,000 pounds of honey annually has declined from 2,054 in 2005, (the year before keepers started experiencing colony collapse) to about 1,100 this year.

没有评论:

发表评论