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毁灭性的疾病传播瓦螨感染导致蜜蜂大屠杀

发布时间:2018-09-13 文章编辑:admin

Honeybees are one of the most crucial members of the ecosystem, pollinating crops and plant cultures all around the world。 Various studies conducted in the past couple of years have shown an alarming dwindling of the world bee population, with some locations being hit more aggressively than others。 The main factor linked to this bee genocide seems to be pesticides sprayed on crops, whose chemicals are assimilated by the bees, who also spread them to the hive, leading to a devastating chain reaction。 Pesticides are not alone, though –; apparently parasitic mite has helped a virus wipe out billions of honeybees throughout the globe, according to a recently published study in the journal Science

Verroa infected honeybees (as seen on the bodies), carry a lethal strain of the  deformed wing virus, supposedly responsible for the death of billions。

Varroa infected honeybees (as seen on the bodies), carry a lethal strain of the deformed wing virus, supposedly responsible for the death of billions。

The scientists chose to study honeybee populations in Hawaii, to estimate the effects of Varroa mite infections, which help spread a particularly lethal strain of an otherwise common disease called the deformed wing virus。 Being an isolated location, thousands of miles from the nearest coastline, Hawaii has been sheltered from many of the world’;s plagues and diseases; once with the introduction of trade and European settlers, however, this changed forever。 It seems the Varroa was accidentally brought from California just five years ago, however, surprisingly enough, there are also plenty of Varroa-free colonies。 This allowed for the perfect laboratory setting for the researchers, who were free to choose samples and compare between infected and uninfected colonies。

The Varroa mites act like tiny incubators, releasing the deadly disease directly into the bees’; blood, in the process leading to “;one of the most widely-distributed and contagious insect viruses on the planet,”; according to the team of researchers, lead by Dr Stephen Martin from the University of Sheffield。

本文源自: 环亚娱乐