Re: Was tun bei fremden Honigbienen?
Verfasst: 10. Jul 2025, 13:18
Zufällig vorgestern drauf gestoßen:
‘Could become a death spiral’: scientists discover what’s driving record die-offs of US honeybees
Daraus:
"...But the discovery of amitraz-resistant mites in hives does not mean they alone were responsible for all of last year’s record die-offs. A combination of factors is likely to be causing successive colony deaths among US bees, including the changing climate, exposure to pesticides, and less food in the form of pollen and nectar as monocrop farming proliferates. Many US beekeepers now expect to lose 30% of their colony or more every year.
These wider combined factors are also devastating for wild pollinators and native bee species – and honeybees, which are closely monitored by their keepers, may be acting as a canary in the coalmine for pressures affecting insects more generally.
Paul Hetherington, of the charity Buglife, says honeybees are in effect “a farmed animal as opposed to wild bees, but they will be suffering from the same stresses as their wild cousins, in particular loss of good habitat, climate stress, chemical stress, light.
Adee says: “We had mites for 20 years, and we never had over 3% losses.” He believes there is a “combination of things” that makes the bees more stressed and the mites more deadly.
He cites the use of neonicotinoid insecticides in the US, which harm bees’ nervous system, paralysing and ultimately killing them. Some researchers have warned of neonicotinoids causing another “silent spring”, referring to Rachel Carson’s 1962 book on the effects of the insecticide DDT on bird populations.
...
Due to government staffing cuts, the USDA team were unable to analyse pesticides in the hives and asked bee experts at Cornell University to carry out the research, with the results still to be published. ..."
Zur Pestizid-Untersuchung:
Experts investigate cause of massive honeybee colony die-offs
‘Could become a death spiral’: scientists discover what’s driving record die-offs of US honeybees
Daraus:
"...But the discovery of amitraz-resistant mites in hives does not mean they alone were responsible for all of last year’s record die-offs. A combination of factors is likely to be causing successive colony deaths among US bees, including the changing climate, exposure to pesticides, and less food in the form of pollen and nectar as monocrop farming proliferates. Many US beekeepers now expect to lose 30% of their colony or more every year.
These wider combined factors are also devastating for wild pollinators and native bee species – and honeybees, which are closely monitored by their keepers, may be acting as a canary in the coalmine for pressures affecting insects more generally.
Paul Hetherington, of the charity Buglife, says honeybees are in effect “a farmed animal as opposed to wild bees, but they will be suffering from the same stresses as their wild cousins, in particular loss of good habitat, climate stress, chemical stress, light.
Adee says: “We had mites for 20 years, and we never had over 3% losses.” He believes there is a “combination of things” that makes the bees more stressed and the mites more deadly.
He cites the use of neonicotinoid insecticides in the US, which harm bees’ nervous system, paralysing and ultimately killing them. Some researchers have warned of neonicotinoids causing another “silent spring”, referring to Rachel Carson’s 1962 book on the effects of the insecticide DDT on bird populations.
...
Due to government staffing cuts, the USDA team were unable to analyse pesticides in the hives and asked bee experts at Cornell University to carry out the research, with the results still to be published. ..."
Zur Pestizid-Untersuchung:
Experts investigate cause of massive honeybee colony die-offs