
A quarter of all known bee species haven't been seen since the 1990s
The number of bee species appears to have declined sharply in the past 30 years, which could mean many types of bee are extinct or so rare that no one has recording a sighting
They found that there were a quarter fewer species reported between 2006 and 2015, as compared with the records we have from before 1990.
The decline is especially alarming considering the number of bee records in this database has increased by around 55 per cent since 2000, so it isn’t down to a lack of observations."
