The number of native bee types in the European continent experiencing dying out has increased twofold in the last ten years, and the total of at-risk butterfly has almost doubled.
This dire scenario for essential pollinating species was revealed by research studies for the International Union for Conservation of Nature (IUCN) red list, which determined that at least one hundred seventy-two bee species out of 1,928 were at risk of extinction in European nations.
The total of butterfly types facing extinction in Europe has grown from thirty-seven to sixty-five since the earlier research, performed 14 years ago. One type, the Madeiran large white butterfly (Pieris wollastoni) has now been confirmed extinct.
Apart from their beauty and cultural value, pollinators like bees and butterfly species are lifelines for our physical condition, our food supplies and our economic systems – supporting the produce, vegetables and seeds that feed us,” commented the IUCN director general. “The most recent assessments of the European red list reveal serious challenges, with risks increasing for butterfly types and crucial non-managed bee types.”
The reasons of the swift recent drops are the continuing harm or degradation of natural habitats caused by farming intensification and abandoned land, wetland drainage, overgrazing by livestock, and the utilization of chemical fertilisers and pesticides including neonicotinoid chemicals. The fragmentation of pollinator-friendly habitat substantially boosts the threat of local extinctions.
Global heating is also shown to be a significant danger: Fifty-two percent of all endangered butterfly types in Europe are imperilled by the climate crisis – approximately twofold the amount as a decade ago.
As many as nine out of ten of blooming plants in European nations require insect pollination, according to Dr Denis Michez. “Sadly, non-managed bee groups are in drastic decline and cannot be easily replaced by managed colonies,” he said. “If wild bees disappear, many non-cultivated plants might be at risk too – of which flower-rich meadows and beautiful orchid species are just a handful of illustrations.”
Fifteen types of bumblebees, which perform a vital function in fertilizing legumes like peas, beans, peanuts and clover, and fourteen varieties of cellophane bees, known for fertilizing trees such as willow trees and red maples, are now classified as threatened. Simpanurgus phyllopodus, a mining bee type unique to the European continent and the only species of this biological genus in European nations, is now assessed as critically endangered – the research category closest to dying out in natural habitats.
Butterfly species that are exclusively located on mountain peaks are particularly vulnerable to global heating as they must ascend higher as their environments become warmer but eventually exhaust available space. In southern Spain, the Nevada grayling butterfly and the Andalusian anomalous blue are among above 40 percent of European endemics (only found in Europe) at risk of extinction.
In the Mediterranean area, varieties such as the highly at-risk Karpathos grayling butterfly are imperilled by intense wildfires and drought.
Meanwhile, in the Arctic Circle, climate change is leading to the tree line to advance northwards by tens of metres each year, with bushes encroaching on wetlands and tundra. Higher temperatures also mean reindeer can not anymore cross the ice sheets to browse northern grasslands and maintain them clear. Eight types of butterflies are at risk of extinction in this area, including Freyja’s fritillary butterfly and the Arctic ringlet.
“The largest habitat for all these pollinating species is grassland rich in flowers and that is declining quickly across the European continent because of all these reasons,” stated a lead coordinator for the butterfly assessment. “The good news is that so many people are aware now and there’s a lot more understanding. Under the EU nature restoration legislation, all participating nations have to turn around the drop in pollinating insects by the year 2030, and they are going to have to start doing something. There are property owners who are engaged. It is hoped they can obtain the encouragements that will assist them on their way.”
As per Warren, there is “easy opportunities” in terms of measures for pollinating species which will not decrease agricultural output – and may enhance it – such as farmers developing bloom-filled edges around their farmland.
Jessika Roswall, described the conservation status of wild bees, butterflies and other pollinators as “critical”.
“Immediate and joint measures is needed to address this danger. Along with member states, the European Commission has established an Europe-wide monitoring system for pollinators based on the EU nature restoration law, which will aid in following our development. Now, we need to concentrate on application and cooperation with participating nations to safeguard our pollinating species,” she said.
The publication of the assessments on bees and butterflies follows the pioneering European-wide assessment of hoverflies, another essential pollinator group. Issued in 2022, it revealed that 37% of all hoverfly varieties in European nations were facing extinction.
