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A dead carpenter bee. Pollinator decline is the reduction in abundance of insect and other animal pollinators in many ecosystems worldwide that began being recorded at the end of the 20th century. Multiple lines of evidence exist for the reduction of wild pollinator populations at the regional level, especially within Europe and North America.
The decline was "apparent regardless of habitat type" and could not be explained by "changes in weather, land use, and habitat characteristics". The authors suggested that not only butterflies, moths and wild bees appear to be in decline, as previous studies indicated, but "the flying insect community as a whole". [1] [4] [52] [53] [54]
Potentially toxic effects studied in the laboratory have often been followed by field studies that fail to show effects on actual bee populations. [119] Despite gaps in the scientific evidence, regulators have restricted the use of neonicotinoids in Europe [120] and elsewhere [121] largely on the basis of concerns for bee health.
Story at a glance New research underscores the negative effect of climate change on alpine bee populations. According to 60 years’ worth of data, bees in alpine regions are in an evolutionary ...
A new study suggests that the mysterious disappearance of the Earth's bees may be in part because they are developing dementia. According to the new research dementia caused by aluminum found in ...
Honeybee populations worldwide have declined almost 40 percent according to one recent survey. ... Commentary: Declining health of bees in Durham due to climate change. Show comments. Advertisement.
The decline of its populations started with the introduction of Bombus terrestris and B. ruderatus into Chile to serve as commercial pollinators. [3] B. dahlbomii population decline can also be attributed to the pathogen spillover of the parasitic protozoan Apicystis bombi, which was co-introduced with B. terrestris.
His research has led to significant breakthroughs in understanding and managing CCD, a primary cause of North American bee population decline. He is also known for discovering with Dennis vanEngelsdorp , then at Pennsylvania State University , the ability of bees to detect pesticides and harmful fungi in collected pollen and subsequently ...