The total of non-managed bee types in Europe experiencing extinction has more than doubled over the past decade, while the number of at-risk butterfly has close to doubled.
This critical situation for essential pollinating insects was revealed by scientific studies 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 Europe.
The total of butterflies facing extinction in the European continent has increased from 37 to 65 since the last study, conducted 14 years ago. A single species, the Madeiran large white (Pieris wollastoni) has now been classified as extinct.
In addition to their aesthetic appeal and cultural significance, pollinating insects like bees and butterflies are crucial elements for our physical condition, our food systems and our economies – sustaining the fruits, vegetables and seeds that sustain us,” said the IUCN director general. “The most recent European red list assessments reveal significant difficulties, with threats mounting for butterflies and essential non-managed bee types.”
The causes of the quick recent decreases are the ongoing harm or degradation of natural habitats caused by agricultural intensification and land abandonment, draining of wetlands, livestock overgrazing, and the utilization of pesticides and fertilisers including neonicotinoid chemicals. The division of habitat friendly to pollinators substantially boosts the danger of extinctions at local level.
Global warming is also demonstrated to be a major threat: Fifty-two percent of all at-risk butterfly species in Europe are endangered by the climate emergency – about twofold the amount as a previous decade.
Up to 90% of blooming plants in European nations require insect pollination, according to the wild bee assessment’s lead coordinator. “Regrettably, wild bee populations are in sharp decrease and cannot be easily replaced by managed colonies,” he said. “If wild bees vanish, many native plants might be threatened too – of which meadows rich in flowers and attractive orchid varieties are just a couple of instances.”
15 varieties of bumblebees, which perform a vital function in pollinating legumes like peas, beans, peanuts and clover, and 14 types of cellophane bee species, known for pollinating trees such as willows along with red maples, are now classified as threatened. Simpanurgus phyllopodus, a mining bee unique to the continent and the sole species of this biological genus in European nations, is now classified as critically endangered – the scientific classification most akin to disappearance in the wild.
Butterfly types that are solely present on mountain tops are highly susceptible to global warming as they have to climb upward as their habitats become warmer but ultimately exhaust available space. In southern Spain, the Nevada grayling and the Andalusian anomalous blue butterfly are among above 40 percent of European endemics (exclusive to Europe) facing extinction.
In the Mediterranean, varieties such as the severely threatened Karpathos grayling are endangered by extreme wildfires and drought.
In the meantime, in the Far North, global heating is resulting in the forest boundary to move north by dozens of meters each year, with underbrush encroaching on wetlands and tundra. Warmer conditions also mean caribou can not anymore cross the frozen water to feed on northern grasslands and maintain them clear. 8 butterfly varieties are at risk of extinction in this region, including Freyja’s fritillary and the Arctic ringlet butterfly.
“The greatest habitat for all these pollinators is bloom-filled grassy areas and that is declining quickly in European nations because of all these reasons,” remarked a lead coordinator for the butterfly assessment. “The good news is that so many citizens are concerned now and there’s a lot more awareness. Under the European Union nature restoration law, all member states have to halt the decrease in pollinating species by the year 2030, and they are going to have to start doing something. There are land holders who are interested. We hope they can obtain the incentives that will support them on their way.”
According to Martin Warren, there is “low-hanging fruit” in terms of steps for pollinating insects which will not lower agricultural output – and could improve it – such as growers establishing bloom-filled edges around their farmland.
EU commissioner for environment, portrayed the protection status of wild bees, butterflies and other pollinators as “dire”.
“Urgent and collective action is required to confront this threat. Together with participating nations, the European Commission has put in place an European Union-wide observation system for pollinating insects based on the EU nature restoration law, which will aid in following our advancement. Now, we need to prioritize implementation and cooperation with member countries to preserve our pollinating species,” she said.
The issuance of the evaluations of bees along with butterflies follows the initial Europe-wide assessment of hoverflies, another crucial group of pollinators. Issued in 2022, it disclosed that 37% of all hoverfly types in the European continent were facing extinction.
