The total of wild bee types in Europe experiencing disappearance has over doubled in the last ten years, whereas the number of endangered butterfly types has close to doubled.
This pressing issue for vital pollinating insects was disclosed by scientific assessments for the red list of threatened species, which found that at least 172 bee types out of over 1900 were facing extinction in Europe.
The total of butterflies threatened with extinction in European nations has grown from thirty-seven to over sixty since the previous assessment, conducted over a decade past. One type, the Madeiran large white butterfly (Pieris wollastoni) has now been confirmed extinct.
In addition to their visual charm and cultural significance, pollinating insects like bees and butterflies are essential supports for our health, our food chains and our economies – maintaining the produce, vegetables and seeds that nourish us,” stated the IUCN’s director general. “The most recent assessments of the European red list reveal major obstacles, with risks mounting for butterfly types and vital native bee species.”
The causes of the quick recent decreases are the ongoing destruction or damage of living environments caused by farming intensification and abandoned land, draining wetlands, excessive grazing by animals, and the application of chemical fertilisers and pesticides including neonicotinoids. The breaking up of environments suitable for pollinators substantially boosts the danger of local extinctions.
Global heating is also demonstrated to be a primary risk: 52% of all at-risk butterfly species in European nations are imperilled by the climate crisis – approximately twofold the amount as a ten years ago.
Nearly nine out of ten of blooming plants in Europe require pollination by animals, according to Dr Denis Michez. “Sadly, non-managed bee populations are in sharp decrease and cannot readily be substituted by managed colonies,” he said. “If non-managed bees vanish, many native plants might be in danger as well – of which flower-rich meadows and lovely orchid types are just a few examples.”
Fifteen species of bumblebee species, which have an essential part in fertilizing legumes like peas, beans, peanuts and clover, and fourteen varieties of cellophane bee types, recognized for aiding tree pollination such as willows and red maples, are now listed as threatened. Simpanurgus phyllopodus, a mining bee species found only in the mainland and the sole species of this genus group in Europe, is now evaluated as critically endangered – the research category closest to disappearance in the wild.
Butterflies that are solely present on high-altitude areas are especially at risk to climate change as they must ascend higher as their living spaces become warmer but eventually have no room left. In southern Spain, the Nevada grayling butterfly and the Andalusian anomalous blue butterfly are among above 40 percent of European endemics (exclusive to Europe) threatened with extinction.
In the Mediterranean area, varieties such as the severely threatened Karpathos grayling butterfly are imperilled by intense dry conditions and fires.
At the same time, in the Far North, global warming is leading to the timberline to shift northward by tens of metres each year, with scrub encroaching on marsh and tundra. Higher temperatures also mean Arctic deer can not anymore cross the frozen water to browse Arctic meadows and keep them open. Eight butterfly species are threatened with extinction in this area, including Freyja’s fritillary and the Arctic ringlet.
“The biggest environment for all these pollinating insects is bloom-filled grassy areas and that is vanishing rapidly throughout European nations because of all these factors,” said a lead coordinator for the butterfly assessment. “The encouraging aspect is that so many individuals care now and there’s a lot more consciousness. Under the European Union nature restoration law, all member states have to reverse the decrease in pollinating insects by the year 2030, and they are going to have to start doing something. There are property owners who are involved. We hope they can receive the incentives that will help them on their way.”
As stated by Warren, there is “readily achievable actions” in terms of steps for pollinating species which won’t reduce agricultural output – and could improve it – such as growers establishing margins rich in flowers around their farmland.
the EU’s environment commissioner, described the preservation condition of wild bees, butterflies and other pollinators as “dire”.
“Prompt and unified steps is needed to confront this danger. Together with member countries, the Commission of the European Union has established an EU-wide monitoring system for pollinating insects based on the EU nature restoration regulation, which will assist in monitoring our progress. Now, we need to concentrate on implementation and collaboration with participating nations to safeguard our pollinating species,” she said.
The release of the evaluations of bees along with butterflies comes after the pioneering Europe-wide study on hoverflies, a further essential pollinator group. Released in 2022, it disclosed that over one-third of all hoverfly varieties in the European continent were at risk of extinction.