The total of wild bee types in the European continent experiencing disappearance has over doubled during the previous ten-year period, whereas the number of threatened butterfly has nearly doubled.
This critical situation for vital pollinators was unveiled by scientific assessments for the IUCN red list, which found that at least 172 bee varieties out of over 1900 were threatened with extinction in Europe.
The total of butterfly species threatened with extinction in European nations has risen from 37 to over sixty since the previous assessment, carried out over a decade past. One species, the large white of Madeira (Pieris wollastoni) has now been confirmed extinct.
“Beyond their aesthetic appeal and cultural significance, pollinating species like bees along with butterflies are lifelines for our physical condition, our food supplies and our economic systems – maintaining the fruits, veggies and seeds that sustain us,” commented the IUCN’s director general. “The newest European red list evaluations reveal significant difficulties, with dangers mounting for butterfly species and vital native bee varieties.”
The reasons of the rapid recent declines are the ongoing harm or degradation of natural habitats caused by farming intensification and deserted farmland, wetland drainage, excessive grazing by animals, and the utilization of fertilisers and pesticides including neonicotinoid chemicals. The division of pollinator-friendly habitat substantially boosts the threat of extinctions at local level.
Global warming is also revealed to be a primary risk: Over half of all at-risk butterfly species in the European continent are endangered by the climate change crisis – about twice as many as a decade ago.
Nearly 90% of plants that flower in the European continent depend on pollination by animals, as stated by Dr Denis Michez. “Sadly, native bee groups are in sharp decrease and cannot readily be substituted by managed bee colonies,” he said. “If wild bees die out, many non-cultivated plants might be at risk too – of which meadows rich in flowers and beautiful orchid species are just a few examples.”
15 varieties of bumblebee types, which play a crucial role in pollinating peas, beans, peanuts and clover, and 14 types of cellophane bee types, known for pollinating trees such as willows and red maples, are now classified as threatened. Simpanurgus phyllopodus, a mining bee species found only in the mainland and the single type of this genus group in European nations, is now assessed as critically at risk – the research category closest to dying out in natural habitats.
Butterfly species that are only found on mountain tops are highly susceptible to global heating as they need to move uphill as their habitats become warmer but in the end exhaust available space. In southern Spain, the grayling of Nevada and the Andalusian anomalous blue butterfly are among more than 40% of European endemics (only found in Europe) at risk of extinction.
In the Mediterranean, species such as the highly at-risk Karpathos grayling butterfly are imperilled by severe drought and wildfires.
At the same time, in the Arctic Circle, climate change is leading to the timberline to advance northwards by dozens of meters each year, with scrub invading marsh and tundra. Higher temperatures also mean Arctic deer can no more cross the ice sheets to feed on Arctic meadows and maintain them clear. Eight butterfly species are at risk of extinction in this zone, including the fritillary of Freyja and the Arctic ringlet butterfly.
“The largest environment for all these pollinators is bloom-filled grassy areas and that is declining quickly throughout Europe because of all these factors,” stated a lead coordinator for the butterfly assessment. “The encouraging aspect is that so many people care now and there’s a lot more understanding. Under the European Union nature restoration law, all participating nations have to halt the decline in pollinators by 2030, and they are going to have to begin taking action. There are land holders who are engaged. Let’s hope they can obtain the encouragements that will help them on their way.”
As per Martin Warren, there is “easy opportunities” in terms of steps for pollinating insects which will not lower crop yields – and might boost it – such as agricultural producers developing flower-rich margins around their farmland.
the EU’s environment commissioner, characterized the conservation status of wild bees, butterflies and other pollinators as “critical”.
“Prompt and unified steps is needed to confront this risk. Along with member countries, the European Commission has implemented an EU-wide tracking system for pollinating insects based on the EU nature restoration law, which will help to track our advancement. Now, we need to concentrate on application and collaboration with member countries to safeguard our pollinating species,” she said.
The release of the assessments on bees and butterflies follows the first Europe-wide study on hoverflies, an additional vital group of pollinators. Published in 2022, it showed that thirty-seven percent of all hoverfly species in European nations were threatened with extinction.
