Human efforts to breed more of these insects in artificial beehives and plant more flowers may seem the obvious way to stave off heavy losses.
New research shows the answer is not that clear cut, because viruses may be spilling over from commercial honeybee colonies into wild bee populations, according to a study from the University of Vermont published Wednesday in PLOS One.
Like honeybees, which are invaluable for agriculture, wild bumblebees also play a significant role in crop pollination. Though people are more familiar with honeybee die-offs — such as with colony collapse disorder — wild bumblebees have been struggling too. A handful of bumblebee species have declined by up to 96 percent in the U.S., according to the National Agricultural Library’s website.
The causes have been largely understudied, although pesticides, infectious disease and shrinking habitat due to climate change have been suspected, said Samantha Alger, an ecologist from the University of Vermont who led the new research.
Filling in one piece of the puzzle, the study revealed wild bumblebees pick up more viruses the closer they forage to managed honeybee colonies. But if bumblebees don’t venture into the commercial hives, how are they picking up viruses?
Flowers have been suspected as reservoirs for bee viruses, but no researcher had linked virus deposits on flowers to bumblebee infections in the wild until this study. And the results could have implications for how we lend our inter-species help.
Use the article excerpt below to answer the question.
What evidence from the text best supports the analysis that human actions are related to bumblebee decline?
(1 point)
Responses
the fact that people have tried to breed more bees
the fact that people have tried to breed more bees
the question about how wild bees pick up viruses if they do not enter managed honeybee colonies
the question about how wild bees pick up viruses if they do not enter managed honeybee colonies
the claim that people may be saving the bees to death
the claim that people may be saving the bees to death
the study that shows viruses may be spilling over from commercial hives to wild bees
the study that shows viruses may be spilling over from commercial hives to wild bees
1 answer
The evidence from the text that best supports the analysis that human actions are related to bumblebee decline is:
the study that shows viruses may be spilling over from commercial hives to wild bees.
This indicates a direct link between human-managed honeybee colonies and the health of wild bumblebee populations, suggesting that human actions can have negative consequences for wild bees.
