The total of non-managed bee species in European nations experiencing disappearance has more than doubled during the previous ten-year period, whereas the number of endangered butterfly species has almost doubled.
This dire scenario for essential pollinators was unveiled by scientific studies for the International Union for Conservation of Nature (IUCN) red list, which established that at least one hundred seventy-two bee types out of nearly two thousand were at risk of extinction in the European continent.
The total of butterflies at risk of extinction in European nations has increased from over thirty-five to sixty-five since the previous assessment, carried out a decade and a half ago. One type, the Madeiran large white butterfly (Pieris wollastoni) has now been declared extinct.
“Beyond their aesthetic appeal and cultural importance, pollinating species like bees along with butterflies are essential supports for our well-being, our food supplies and our financial structures – sustaining the fruits, veggies and seeds that feed us,” stated the IUCN’s director general. “The most recent European red list assessments reveal significant difficulties, with threats growing for butterfly species and crucial wild bee types.”
The reasons of the quick recent decreases are the ongoing damage or destruction of habitats caused by farming intensification and abandoned land, draining wetlands, excessive grazing by animals, and the utilization of pesticides and fertilisers including neonicotinoid chemicals. The division of environments suitable for pollinators substantially boosts the risk of disappearances in specific areas.
Climate change is also revealed to be a significant danger: 52% of all endangered butterflies in European nations are endangered by the climate change crisis – about double the number as a decade ago.
Up to 90% of blooming plants in Europe require insect pollination, as stated by the lead coordinator of the wild bee assessment. “Regrettably, wild bee populations are in severe drop and are not easily replaceable by domesticated hives,” he said. “If non-managed bees disappear, many wild plants might be threatened too – of which meadows rich in flowers and attractive orchid varieties are just a handful of illustrations.”
15 varieties of bumblebees, which have an essential part in aiding the pollination of legumes like peas, beans, peanuts and clover, and 14 species of cellophane bee types, known for aiding tree pollination such as willows and red maples, are now listed as threatened. Simpanurgus phyllopodus, a mining bee found only in the mainland and the single type of this biological genus in the European continent, is now evaluated as critically at risk – the scientific classification nearest to extinction in the wild.
Butterflies that are only found on high-altitude areas are especially at risk to climate change as they need to move uphill as their environments become more heated but ultimately run out of space. In Spain’s southern region, the Nevada grayling and the Andalusian anomalous blue are among over forty percent of types unique to Europe (exclusive to Europe) threatened with extinction.
In the Mediterranean area, species such as the critically endangered Karpathos grayling are endangered by intense wildfires and drought.
At the same time, in the Far North, climate change is resulting in the tree line to move north by dozens of meters each year, with underbrush encroaching on bog and tundra. Hotter climates also mean Arctic deer can no more cross the frozen water to graze northern grasslands and maintain them clear. 8 butterfly varieties are at risk of extinction in this zone, including the fritillary of Freyja and the Arctic ringlet butterfly.
“The greatest environment for all these pollinating insects is flower-rich grassland and that is disappearing very fast across European nations because of all these factors,” stated Martin Warren. “The good news is that so many people care now and there’s a lot more consciousness. Under the EU nature restoration legislation, all member countries have to halt the drop in pollinating insects by 2030, and they are going to have to initiate measures. There are landowners who are involved. We hope they can get the encouragements that will help them on their way.”
According to Martin Warren, there is “readily achievable actions” in terms of steps for pollinators which will not lower food production – and might boost it – such as agricultural producers creating flower-rich margins around their farmland.
Jessika Roswall, portrayed the preservation condition of native bees, butterflies and additional pollinators as “critical”.
“Urgent and collective action is necessary to address this danger. In collaboration with member countries, the EU Commission has implemented an EU-wide tracking system for pollinating insects based on the EU nature restoration regulation, which will aid in following our advancement. Now, we need to prioritize application and partnership with member countries to safeguard our pollinating insects,” she said.
The issuance of the evaluations of bees along with butterflies comes after the pioneering European-wide study on hoverflies, an additional crucial group of pollinators. Released in 2022, it disclosed that over one-third of all hoverfly species in the European continent were facing extinction.
