The count of native bee varieties in the European continent experiencing disappearance has increased twofold over the past decade, and the total of endangered butterfly species has nearly doubled.
This dire scenario for crucial pollinating species was unveiled by scientific studies for the IUCN red list, which determined that at least one hundred seventy-two bee types out of nearly two thousand were at risk of extinction in European nations.
The total of butterfly types facing extinction in European nations has risen from over thirty-five to sixty-five since the previous assessment, conducted 14 years ago. One type, the Madeiran large white (Pieris wollastoni) has now been classified as extinct.
In addition to their visual charm and cultural importance, pollinating species like bees along with butterflies are essential supports for our well-being, our food systems and our economies – supporting the fruits, veggies and seeds that feed us,” said the IUCN’s director general. “The newest European red list assessments reveal significant difficulties, with risks increasing for butterfly types and vital wild bee types.”
The factors of the rapid recent declines are the persistent destruction or damage of habitats caused by farming intensification and deserted farmland, wetland drainage, overgrazing by livestock, and the utilization of chemical fertilisers and pesticides including neonicotinoids. The breaking up of habitat friendly to pollinators greatly increases the threat of disappearances in specific areas.
Global heating is also revealed to be a primary risk: Fifty-two percent of all endangered butterfly species in European nations are threatened by the climate emergency – about twice as many as a previous decade.
Nearly ninety percent of blooming plants in Europe depend on animal pollination, as per the wild bee assessment’s lead coordinator. “Unfortunately, wild bee colonies are in sharp decrease and cannot readily be substituted by domesticated hives,” he said. “If non-managed bees die out, many wild plants might be threatened too – of which bloom-filled grasslands and attractive orchid varieties are just a couple of instances.”
Fifteen species of bumblebee types, which perform a vital function in fertilizing peas, beans, peanuts and clover, and 14 species of cellophane bee types, recognized for aiding tree pollination such as willow trees and red maples, are now categorized as at-risk. Simpanurgus phyllopodus, a mining bee unique to the mainland and the sole species of this genus group in European nations, is now assessed as critically at risk – the scientific category most akin to extinction in the wild.
Butterfly types that are exclusively located on mountain peaks are highly susceptible to global heating as they need to move uphill as their habitats become warmer but ultimately exhaust available space. In Spain’s southern region, the Nevada grayling and the anomalous blue of Andalusia are among over forty percent of European endemics (solely present in Europe) at risk of extinction.
In the Mediterranean area, species such as the critically endangered Karpathos grayling are endangered by intense drought and wildfires.
In the meantime, in the Arctic Circle, climate change is causing the timberline to move north by tens of metres each year, with scrub encroaching on bog and tundra. Warmer conditions also mean caribou 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 Freyja’s fritillary butterfly and the Arctic ringlet.
“The largest habitat for all these pollinators is grassland rich in flowers and that is vanishing rapidly across Europe because of all these factors,” 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 nature restoration legislation, all member states have to halt the decline in pollinators by the year 2030, and they are going to have to begin taking action. There are property owners who are interested. We hope they can receive the encouragements that will assist them on their way.”
As per the coordinator, there is “readily achievable actions” in terms of steps for pollinating insects which will not lower crop yields – and may enhance it – such as growers creating flower-rich margins around their cultivated areas.
EU commissioner for environment, portrayed the preservation condition of wild bees, butterflies and other pollinators as “severe”.
“Immediate and joint measures is needed to address this danger. In collaboration with participating nations, the European Commission has established an European Union-wide observation system for pollinators based on the EU nature restoration regulation, which will aid in following our development. Now, we need to prioritize application and cooperation with member states to preserve our pollinating insects,” she said.
The issuance of the evaluations of bees along with butterflies comes after the first European-wide evaluation of hoverflies, an additional crucial pollinating insect category. Released in 2022, it revealed that 37% of all hoverfly varieties in European nations were facing extinction.
