The count of native bee varieties in the European continent facing disappearance has increased twofold in the last ten years, while the count of threatened butterfly species has close to doubled.
This dire scenario for crucial pollinators was unveiled by scientific assessments for the International Union for Conservation of Nature (IUCN) red list, which found that at least 172 bee types out of nearly two thousand were facing extinction in European nations.
The total of butterfly species facing extinction in the European continent has risen from thirty-seven to sixty-five since the previous assessment, carried out 14 years ago. A single species, the Madeiran large white butterfly (Pieris wollastoni) has now been classified as extinct.
“Beyond their visual charm and cultural significance, pollinators like bees along with butterflies are crucial elements for our physical condition, our food supplies and our financial structures – supporting the produce, vegetables and seeds that feed us,” stated the IUCN’s director general. “The newest assessments of the European red list reveal serious challenges, with dangers increasing for butterfly types and essential non-managed bee types.”
The factors of the quick recent decreases are the ongoing harm or degradation of natural habitats caused by farming intensification and deserted farmland, wetland drainage, overgrazing by livestock, and the utilization of chemical fertilisers and pesticides including neonicotinoid pesticides. The fragmentation of pollinator-friendly habitat significantly raises the threat of local extinctions.
Global warming is also revealed to be a significant danger: Fifty-two percent of all at-risk butterflies in European nations are endangered by the climate emergency – roughly twofold the amount as a decade ago.
As many as ninety percent of flowering plants in the European continent rely on animal pollination, according to the lead coordinator of the wild bee assessment. “Regrettably, native bee populations are in sharp decrease and are not easily replaceable by managed bee colonies,” he said. “If native bees die out, many wild plants might be at risk too – of which meadows rich in flowers and attractive orchid varieties are just a couple of instances.”
Fifteen species of bumblebees, which perform a vital function in fertilizing peas, beans, peanuts and clover, and 14 types of cellophane bee species, known for pollinating trees such as willow trees and red maples, are now categorized as at-risk. Simpanurgus phyllopodus, a mining bee exclusive to the European continent and the sole species of this genus group in European nations, is now assessed as critically endangered – the research category nearest to extinction in the wild.
Butterfly types that are exclusively located on mountain peaks are especially at risk to climate change as they have to climb upward as their living spaces become hotter but in the end exhaust available space. In the southern part of Spain, the Nevada grayling butterfly and the Andalusian anomalous blue are among more than 40% of European endemics (solely present in Europe) facing extinction.
In the Mediterranean, varieties such as the highly at-risk Karpathos grayling butterfly are endangered by extreme wildfires and drought.
At the same time, in the Arctic Circle, climate change is resulting in the tree line to advance northwards by dozens of meters each year, with underbrush taking over marsh and tundra. Higher temperatures also mean caribou can not anymore cross the ice sheets to feed on northern grasslands and keep them open. 8 butterfly varieties are threatened with extinction in this region, including the fritillary of Freyja and the Arctic ringlet butterfly.
“The largest living space for all these pollinating insects is flower-rich grassland and that is vanishing rapidly in the European continent because of all these reasons,” stated Martin Warren. “The good news is that so many individuals are aware now and there’s a lot more awareness. Under the European Union nature restoration law, all member countries have to reverse the drop in pollinating insects by twenty-thirty, and they are going to have to start doing something. There are landowners who are engaged. We hope they can receive the incentives that will help them on their way.”
As stated by Warren, there is “easy opportunities” in terms of action for pollinating species which won’t reduce crop yields – and might boost it – such as farmers developing margins rich in flowers around their fields.
the EU’s environment commissioner, described the conservation status of non-managed bees, butterfly species and other pollinating insects as “dire”.
“Urgent and collective action is required to confront this risk. Together with member states, the Commission of the European Union has put in place an European Union-wide monitoring system for pollinating species based on the European Union nature restoration legislation, which will help to track our development. Now, we need to concentrate on execution and partnership with member countries to preserve our pollinating insects,” she said.
The publication of the evaluations of bees along with butterflies is subsequent to the first Europe-wide evaluation of hoverflies, another essential pollinator group. Released in twenty-twenty-two, it revealed that thirty-seven percent of all hoverfly varieties in European nations were at risk of extinction.
