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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]
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 ...
Where honeybee populations decline, there is also a decline in plant populations. [207] In agriculture, some plants are completely dependent on honeybees to pollinate them to produce fruit, while other plants are only dependent on honeybees to enhance their capacity to produce better and healthier fruits.
Nationwide, wild bees are decreasing in numbers, ... Except one major contributor isn't as abundant as it once was—wild bees. Local farmers have attributed the decline in bees, both wild and ...
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A bee hotel in Paris. Approximately 30% of the 5,000 native bee species in North America build nests in tunnels or cavities situated above ground. [8]The 2021 scientific publication Worldwide occurrence records suggest a global decline in bee species richness indicates a downwards trend in the global bee population. [9]
The decline in bee populations spells insufficient pollination of high mountain crops and wild flora, said Joshi, who is also an expert on bees.