The count of wild bee species in Europe experiencing disappearance has over doubled during the previous ten-year period, whereas the total of at-risk butterfly has nearly doubled.
This dire scenario for vital pollinating insects was unveiled by scientific assessments for the International Union for Conservation of Nature (IUCN) red list, which found that at least over 170 bee types out of nearly two thousand were at risk of extinction in European nations.
The count of butterfly species at risk of extinction in European nations has risen from thirty-seven to 65 since the previous assessment, carried out 14 years ago. One type, the large white of Madeira (Pieris wollastoni) has now been classified as extinct.
“Beyond their aesthetic appeal and cultural value, pollinators like bees along with butterflies are essential supports for our well-being, our food systems and our financial structures – maintaining the fruits, veggies and seeds that feed us,” said the IUCN’s director general. “The latest European red list evaluations reveal significant difficulties, with risks growing for butterfly types and crucial non-managed bee types.”
The factors of the rapid recent declines are the persistent harm or degradation of habitats caused by intensive agriculture and deserted farmland, draining of wetlands, excessive grazing by animals, and the application of fertilisers and pesticides including neonicotinoid chemicals. The breaking up of pollinator-friendly habitat significantly raises the risk of extinctions at local level.
Global heating is also demonstrated to be a primary risk: Over half of all endangered butterfly types in European nations are imperilled by the climate emergency – about twofold the amount as a previous decade.
Up to nine out of ten of blooming plants in European nations depend on insect pollination, as per the lead coordinator of the wild bee assessment. “Unfortunately, non-managed bee populations are in drastic decline and are not easily replaceable by managed bee colonies,” he said. “If non-managed bees vanish, many non-cultivated plants might be in danger as well – of which bloom-filled grasslands and attractive orchid varieties are just a handful of illustrations.”
Fifteen species of bumblebee types, which perform a vital function in aiding the pollination of peas, beans, peanuts and clover, and fourteen varieties of cellophane bee species, known for fertilizing trees such as willows along with red maples, are now categorized as at-risk. Simpanurgus phyllopodus, a mining bee species exclusive to the mainland and the sole species of this genus group in Europe, is now classified as severely threatened – the scientific category closest to extinction in the wild.
Butterflies that are exclusively located on high-altitude areas are highly susceptible to global heating as they must ascend higher as their habitats become hotter but eventually run out of space. In the southern part of Spain, the grayling of Nevada and the Andalusian anomalous blue are among over forty percent of types unique to Europe (exclusive to Europe) threatened with extinction.
In the Mediterranean, types such as the highly at-risk Karpathos grayling are threatened by extreme drought and wildfires.
At the same time, in the Arctic Circle, global heating is causing the tree line to advance northwards by dozens of meters each year, with underbrush invading bog and tundra. Hotter climates also mean caribou can not anymore cross the frozen water to browse Arctic grasslands and keep them open. Eight butterfly species are threatened with extinction in this area, including the fritillary of Freyja and the Arctic ringlet.
“The biggest environment for all these pollinators is grassland rich in flowers and that is vanishing rapidly throughout European nations because of all these elements,” said a lead coordinator for the butterfly assessment. “The good news is that so many individuals care now and there’s a lot more understanding. Under the EU’s nature restoration regulation, all member countries have to halt the decrease in pollinating species by the year 2030, and they are going to have to start doing something. There are land holders who are interested. We hope they can get the motivations that will help them on their way.”
As per the coordinator, there is “easy opportunities” in terms of steps for pollinating species which will not decrease agricultural output – and could improve it – such as farmers establishing margins rich in flowers around their farmland.
EU commissioner for environment, portrayed the conservation status of wild bees, butterflies and other pollinators as “critical”.
“Urgent and collective action is required to tackle this risk. Together with participating nations, the European Commission has implemented an European Union-wide observation system for pollinating insects based on the EU nature restoration law, which will help to track our advancement. Now, we need to concentrate on implementation and collaboration with member countries to safeguard our pollinators,” she said.
The release of the assessments on bees and butterflies is subsequent to the first European-wide evaluation of hoverflies, another crucial group of pollinators. Issued in 2022, it revealed that 37% of all hoverfly types in European nations were facing extinction.
