The total of native bee types in European nations experiencing disappearance has more than doubled over the past decade, and the number of at-risk butterfly species has almost doubled.
This critical situation for vital pollinating species was revealed by research studies for the red list of threatened species, which established that at least over 170 bee varieties out of over 1900 were threatened with extinction in Europe.
The count of butterflies at risk of extinction in European nations has risen from thirty-seven to sixty-five since the earlier research, carried out a decade and a half ago. One species, the Madeiran large white butterfly (Pieris wollastoni) has now been confirmed extinct.
“Beyond their aesthetic appeal and cultural value, pollinating insects like bees and butterflies are crucial elements for our physical condition, our food chains and our economic systems – supporting the produce, vegetables and seeds that nourish us,” stated Grethel Aguilar. “The latest assessments of the European red list reveal major obstacles, with risks increasing for butterfly species and crucial non-managed bee varieties.”
The reasons of the rapid recent declines are the ongoing destruction or damage of natural habitats caused by intensive agriculture and deserted farmland, wetland drainage, overgrazing by livestock, and the utilization of fertilisers and pesticides including neonicotinoid pesticides. The breaking up of habitat friendly to pollinators substantially boosts the risk of local extinctions.
Global warming is also shown to be a primary risk: 52% of all at-risk butterfly species in the European continent are threatened by the climate change crisis – roughly twice as many as a ten years ago.
As many as 90% of blooming plants in Europe depend on pollination by animals, as per the wild bee assessment’s lead coordinator. “Regrettably, non-managed bee populations are in sharp decrease and cannot readily be substituted by domesticated hives,” he said. “If wild bees vanish, many native plants might be at risk too – of which flower-rich meadows and attractive orchid varieties are just a handful of illustrations.”
Fifteen types of bumblebee types, which have an essential part in pollinating crops such as peas, beans, peanuts and clover, and 14 species of cellophane bees, famous for aiding tree pollination such as willows and red maples, are now categorized as at-risk. Simpanurgus phyllopodus, a mining bee type found only in the continent and the only species of this biological genus in European nations, is now classified as severely threatened – the scientific classification closest to dying out in natural habitats.
Butterfly species that are solely present on high-altitude areas are particularly vulnerable to global heating as they must ascend higher as their habitats become more heated but ultimately run out of space. In the southern part of Spain, the Nevada grayling butterfly and the Andalusian anomalous blue butterfly are among more than 40% of species endemic to Europe (exclusive to Europe) facing extinction.
In the Mediterranean, types such as the critically endangered Karpathos grayling butterfly are threatened by extreme dry conditions and fires.
At the same time, in the Far North, global warming is leading to the forest boundary to shift northward by dozens of meters each year, with scrub encroaching on marsh and tundra. Warmer conditions also mean caribou can no longer cross the ice sheets to feed on Arctic grasslands and keep them open. 8 butterfly varieties are at risk of extinction in this region, including Freyja’s fritillary butterfly and the Arctic ringlet butterfly.
“The biggest habitat for all these pollinating species is bloom-filled grassy areas and that is declining quickly across Europe because of all these elements,” stated one of the lead coordinators of the butterflies assessment. “The encouraging aspect is that so many individuals are aware now and there’s a lot more awareness. Under the EU nature restoration legislation, all participating nations have to reverse the decline in pollinating species by the year 2030, and they are going to have to begin taking action. There are land holders who are engaged. We hope they can obtain the encouragements that will support them on their way.”
According to Warren, there is “easy opportunities” in terms of steps for pollinating insects which will not decrease agricultural output – and could improve it – such as farmers creating bloom-filled edges around their fields.
the EU’s environment commissioner, described the preservation condition of native bees, butterflies and additional pollinators as “critical”.
“Immediate and joint measures is necessary to confront this threat. In collaboration with member countries, the European Commission has put in place an EU-wide tracking system for pollinating insects based on the EU nature restoration regulation, which will assist in monitoring our advancement. Now, we need to prioritize execution and collaboration with member states to safeguard our pollinating insects,” she said.
The release of the assessments on bees and butterflies comes after the pioneering European-wide evaluation of hoverflies, another vital group of pollinators. Issued in 2022, it revealed that thirty-seven percent of all hoverfly varieties in European nations were threatened with extinction.
