75% of the most threatened bee species have been lost to some of the region's counties.
A report by nature conservation charity Buglife says the large garden bumblebee (Bombus ruderatus) is still found in Gloucestershire and Somerset, but over the past 50 years has disappeared from Dorset and the far South West.
The increased use of pesticides and unpredictable weather have contributed to their decline.
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The blaze in the Greenbank area of the city happened on a street occupied by around 40 caravans.
People across the West Country have been reflecting on a spectacular royal wedding ceremony.
There could be some showers in the East later on.