The number of native bee species in European nations experiencing dying out has more than doubled in the last ten years, and the total of endangered butterfly species has close to doubled.
This pressing issue for essential pollinators was disclosed by scientific assessments for the International Union for Conservation of Nature (IUCN) red list, which established that at least over 170 bee species out of 1,928 were facing extinction in European nations.
The number of butterfly species at risk of extinction in the European continent has increased from 37 to 65 since the earlier research, conducted a decade and a half ago. One type, the Madeiran large white (Pieris wollastoni) has now been declared extinct.
“Beyond their beauty and cultural significance, pollinators like bees and butterflies are essential supports for our health, our food systems and our economic systems – supporting the produce, vegetables and seeds that nourish us,” commented Grethel Aguilar. “The latest assessments of the European red list reveal major obstacles, with risks mounting for butterflies and vital native bee varieties.”
The causes of the rapid recent declines are the ongoing destruction or damage of natural habitats caused by agricultural intensification and deserted farmland, wetland drainage, overgrazing by livestock, and the utilization of chemical fertilisers and pesticides including neonicotinoids. The fragmentation of pollinator-friendly habitat significantly raises the risk of disappearances in specific areas.
Climate change is also demonstrated to be a significant danger: Fifty-two percent of all threatened butterfly types in the European continent are threatened by the climate change crisis – approximately double the number as a decade ago.
As many as nine out of ten of plants that flower in the European continent depend on pollination by animals, as per the lead coordinator of the wild bee assessment. “Regrettably, wild bee populations are in sharp decrease and cannot readily be substituted by managed colonies,” he said. “If native bees die out, many native plants might be in danger as well – of which bloom-filled grasslands and beautiful orchid species are just a couple of instances.”
15 varieties of bumblebee types, which have an essential part in pollinating peas, beans, peanuts and clover, and 14 species of cellophane bee species, known for fertilizing trees such as willows and red maples, are now listed as threatened. Simpanurgus phyllopodus, a mining bee found only in the mainland and the only species of this genus group in Europe, is now classified as critically endangered – the research category most akin to dying out in natural habitats.
Butterfly species that are solely present on mountain tops are highly susceptible to climate change as they have to climb upward as their habitats become hotter but ultimately run out of space. In southern Spain, the grayling of Nevada and the Andalusian anomalous blue butterfly are among over forty percent of types unique to Europe (solely present in Europe) threatened with extinction.
In the Mediterranean region, varieties such as the severely threatened Karpathos grayling are threatened by severe dry conditions and fires.
Meanwhile, in the Arctic region, climate change is resulting in the tree line to shift northward by tens of metres each year, with underbrush taking over bog and tundra. Hotter climates also mean Arctic deer can not anymore cross the ice to graze northern grasslands and maintain them clear. Eight butterfly species are facing extinction in this area, including Freyja’s fritillary butterfly and the Arctic ringlet.
“The biggest environment for all these pollinators is grassland rich in flowers and that is declining quickly across European nations because of all these reasons,” said a lead coordinator for the butterfly assessment. “The encouraging aspect is that so many citizens care now and there’s a lot more awareness. Under the EU’s nature restoration regulation, all participating nations have to turn around the drop in pollinators by twenty-thirty, and they are going to have to begin taking action. There are land holders who are interested. We hope they can receive the encouragements that will help them on their way.”
As per the coordinator, there is “readily achievable actions” in terms of steps for pollinators which will not decrease agricultural output – and might boost it – such as growers creating flower-rich margins around their fields.
EU commissioner for environment, described the conservation status of wild bees, butterflies and other pollinators as “severe”.
“Immediate and joint measures is required to address this risk. Along with member countries, the Commission of the European Union has established an EU-wide tracking system for pollinators based on the European Union nature restoration legislation, which will aid in following our development. Now, we need to prioritize implementation and cooperation with participating nations to safeguard our pollinating species,” she said.
The issuance of the evaluations of bees along with butterflies comes after the first Europe-wide study on hoverflies, another crucial pollinating insect category. Published in 2022, it revealed that over one-third of all hoverfly species in the European continent were at risk of extinction.
