This paper is about how a certain pesticide used on crops could be killing Honeybees.
Good Reasons and Evidence:
The Experiment
In October 2012, the Harvard team setup 18 hives at three locations in Massachusetts. At each location, four hives were fed high fructose corn syrup laced with neonicotinoids and two were left untouched. Researchers planned to monitor the hives over the winter since that's when the die-outs occur.

By the spring of 2013, researchers said half of the colonies treated with pesticides had abandoned their hives — the key symptom of CCD. The ones that were left weren't in good shape. Their honeybee clusters were very small and either lacked queen bees or developing bees, the study said.
Only one of the untreated colonies was lost, and in that case the bees' bodies were actually inside their hives and showed symptoms that appeared to be caused by a type of parasite.
The new study replicates a previous experiment done by the same group in 2010. In that study, the team only tested imidacloprid and found a higher rate of collapse — 94% of pesticide-treated colonies disappeared. They think the disparity might be related to a colder winter, which stresses the bees and exacerbates the effects of pesticides.
It's still not clear what role neonicotinoids play in causing the honeybees to leave their hives during the winter, but the researchers note that it might be related to "impairment of honey bee neurological functions, specifically memory, cognition, or behavior."
It's been previously suggested that neonicotinoids affect the bees' ability to remember how to get back to their hives. The bees get lost, which would explain why beekeepers usually can't locate the dead bodies.
Attention to more than one point of view: At IFLScience.com, entomologist Jake Bova notes that hive abandonment is not a definitive sign of CCD. "Honey bees may abandon their hives for any number of different reasons, and this study doesn’t control for any of them."
An appeal to readers' values: One-third of the food we eat depends on insect pollination, mostly by honeybees that are raised and managed by beekeepers. There is no good replacement for honeybees, which are easy to manage in masses and are unmatched in the variety of crops they can pollinate. Everything from apples and cherries to broccoli, pumpkins, and almonds depends on honeybees.
I think that they should've actually responded to someone's opinion that opposed to what they were saying so they could have been more credible.
No comments:
Post a Comment