The number of non-managed bee types in the European continent confronting extinction has over doubled in the last ten years, whereas the total of threatened butterfly species has nearly doubled.
This critical situation for crucial pollinating insects was disclosed by research studies for the IUCN red list, which found that at least 172 bee types out of over 1900 were threatened with extinction in European nations.
The total of butterflies at risk of extinction in Europe has increased from over thirty-five to 65 since the last study, carried out over a decade past. One species, the large white of Madeira (Pieris wollastoni) has now been confirmed extinct.
Apart from their visual charm and cultural significance, pollinating insects like bees and butterflies are lifelines for our well-being, our food chains and our financial structures – supporting the fruits, veggies and seeds that nourish us,” stated Grethel Aguilar. “The newest assessments of the European red list reveal significant difficulties, with risks increasing for butterfly types and crucial native bee species.”
The reasons of the rapid recent declines are the ongoing damage or destruction of living environments caused by farming intensification and abandoned land, wetland drainage, livestock overgrazing, and the application of pesticides and fertilisers including neonicotinoid pesticides. The division of pollinator-friendly habitat substantially boosts the threat of disappearances in specific areas.
Global heating is also revealed to be a primary risk: 52% of all endangered butterfly species in European nations are endangered by the climate crisis – roughly twofold the amount as a ten years ago.
Up to nine out of ten of blooming plants in Europe depend on pollination by animals, as per the lead coordinator of the wild bee assessment. “Regrettably, native bee groups are in sharp decrease and are not easily replaceable by managed colonies,” he said. “If wild bees disappear, many native plants might be threatened too – of which flower-rich meadows and beautiful orchid species are just a handful of illustrations.”
15 varieties of bumblebee species, which perform a vital function in fertilizing legumes like peas, beans, peanuts and clover, and 14 species of cellophane bees, known for pollinating trees such as willows and red maples, are now categorized as at-risk. Simpanurgus phyllopodus, a mining bee type exclusive to the European continent and the single type of this genus group in European nations, is now assessed as critically endangered – the research category closest to extinction in the wild.
Butterfly species that are exclusively located on mountain peaks are particularly vulnerable to global warming as they have to climb upward as their living spaces become hotter but ultimately have no room left. In Spain’s southern region, the Nevada grayling butterfly and the Andalusian anomalous blue butterfly are among over forty percent of European endemics (solely present in Europe) threatened with extinction.
In the Mediterranean region, types such as the highly at-risk Karpathos grayling are endangered by severe dry conditions and fires.
At the same time, in the Arctic Circle, global heating is resulting in the forest boundary to move north by many meters each year, with scrub taking over wetlands and tundra. Higher temperatures also mean caribou can no more cross the frozen water to browse Arctic meadows and maintain them clear. Eight types of butterflies are threatened with extinction in this region, including the fritillary of Freyja and the Arctic ringlet butterfly.
“The greatest living space for all these pollinators is grassland rich in flowers and that is declining quickly across Europe because of all these reasons,” said one of the lead coordinators of the butterflies assessment. “The good news is that so many individuals are concerned now and there’s a lot more understanding. Under the EU nature restoration legislation, all member countries have to halt the decrease in pollinators by the year 2030, and they are going to have to begin taking action. There are land holders who are engaged. It is hoped they can receive the encouragements that will help them on their way.”
As stated by Warren, there is “easy opportunities” in terms of measures for pollinating species which won’t reduce food production – and might boost it – such as agricultural producers creating bloom-filled edges around their cultivated areas.
Jessika Roswall, described the conservation status of non-managed bees, butterfly species and other pollinating insects as “severe”.
“Prompt and unified steps is required to address this threat. Along with participating nations, the Commission of the European Union has put in place an Europe-wide tracking system for pollinating species based on the EU nature restoration regulation, which will aid in following our development. Now, we need to focus on implementation and cooperation with member states to preserve our pollinating insects,” she said.
The release of the evaluations of bees along with butterflies comes after the first EU-wide evaluation of hoverflies, a further crucial pollinator group. Published in twenty-twenty-two, it disclosed that over one-third of all hoverfly varieties in European nations were threatened with extinction.
