Why are bee populations declining?The question has haunted scientists, farmers, and gardeners...Lowenberg, Olivia
根据第三段第三句“Bee populations are declining in many parts of the globe,a worrying sign for the crops and wild plants that rely on these bees for their survival.”可知,蜂的数量在全球许多地方都在下降,这对那些依靠蜂类生存的农作物和野生植物来说是令人担忧的迹象,即蜂的数量对那些依靠其生存...
Overall, throughout the world,bee populations are on the decline. However, bees provide us with a free, indispensable service that would be difficult to recover if it was lost. While we still can, we need to make choices to help bee populations worldwide. Things you can do to help save ...
Along with pesticides, parasites known asVarrao mites(also called Varrao destructors) are also responsible for their death (source). The Varrao can only reproduce in a bee colony. They are blood-sucking parasites that affect adult and young bees equally. The disease inflicted by these mites ca...
genetic and ecosystem diversity. Under these categories, researchers are looking to identify how many and what kind of species are around, what the genetic makeup of those individual species are and passing down to generations and what species populations are in various environments, such as waterwa...
The Common Eastern Bumble Bee. Credit: Antoine Morin When you were young, were you the type of child who would scour open fields looking for bumble bees? Today, it is much harder for kids to spot them, since bumble bees are drastically declining in North America and in Europe. ...
Unfortunately, in recent times, bee populations have been declining due to pesticides, parasites, disease and habitat loss. It’ s something we should be worried about because, as Gill Perkins, chief executive of the Bumblebee Conservation Trust,told BBC Future website: ‘They provide a whole ...
And are urban gardens encouraging the spread of aggressive non-native bees that could outcompete declining natives? Remarkably little is known about wild bees, an astonishingly diverse group of more than 20,000 species worldwide. In the U.S.,bees range in sizefrom the hefty carpenter bee to ...
State insect: This specieshas an extremely widespread distribution, with populations found from Europe to Australia to Mongolia to central Africa to North America. There was once a dense population on the island of Malta, though this community has been steadily declining in recent years. ...
State insect: This specieshas an extremely widespread distribution, with populations found from Europe to Australia to Mongolia to central Africa to North America. There was once a dense population on the island of Malta, though this community has been steadily declining in recent years. ...