The number of native bee varieties in European nations confronting extinction has more than doubled over the past decade, while the total of endangered butterfly has nearly doubled.
This pressing issue for essential pollinating species was unveiled by research studies for the International Union for Conservation of Nature (IUCN) red list, which found that at least over 170 bee types out of over 1900 were at risk of extinction in European nations.
The number of butterfly types facing extinction in Europe has risen from thirty-seven to over sixty since the last study, conducted a decade and a half ago. One type, the large white of Madeira (Pieris wollastoni) has now been declared extinct.
Apart from their visual charm and cultural significance, pollinators like bees and butterfly species are essential supports for our well-being, our food chains and our economic systems – sustaining the produce, vegetables and seeds that sustain us,” commented the IUCN director general. “The latest European red list evaluations reveal significant difficulties, with threats mounting for butterflies and crucial native bee varieties.”
The causes of the quick recent decreases are the persistent destruction or damage of habitats caused by intensive agriculture and abandoned land, draining of wetlands, excessive grazing by animals, and the use of pesticides and fertilisers including neonicotinoid pesticides. The fragmentation of environments suitable for pollinators substantially boosts the danger of extinctions at local level.
Climate change is also shown to be a major threat: 52% of all threatened butterflies in the European continent are imperilled by the climate emergency – about twice as many as a ten years ago.
Up to nine out of ten of blooming plants in European nations depend on insect pollination, as stated by the wild bee assessment’s lead coordinator. “Sadly, non-managed bee colonies are in severe drop and cannot readily be substituted by domesticated hives,” he said. “If native bees vanish, many native plants might be threatened too – of which meadows rich in flowers and attractive orchid varieties are just a few examples.”
15 varieties of bumblebee types, which have an essential part in pollinating peas, beans, peanuts and clover, and 14 types of cellophane bees, known for aiding tree pollination such as willow trees and red maples, are now classified as threatened. Simpanurgus phyllopodus, a mining bee type found only in the European continent and the sole species of this genus in Europe, is now classified as severely threatened – the research category most akin to dying out in natural habitats.
Butterfly types that are only found on mountain tops are particularly vulnerable to global warming as they must ascend higher as their living spaces become more heated but ultimately exhaust available space. In the southern part of Spain, the Nevada grayling butterfly and the Andalusian anomalous blue are among over forty percent of European endemics (exclusive to Europe) facing extinction.
In the Mediterranean, types such as the highly at-risk grayling of Karpathos are threatened by severe drought and wildfires.
Meanwhile, in the Arctic Circle, global heating is causing the tree line to advance northwards by many meters each year, with scrub taking over wetlands and tundra. Warmer conditions also mean caribou can no more cross the ice sheets to feed on northern grasslands and maintain them clear. Eight types of butterflies are at risk of extinction in this region, including the fritillary of Freyja and the Arctic ringlet.
“The largest habitat for all these pollinating species is bloom-filled grassy areas and that is declining quickly across the European continent because of all these elements,” said a lead coordinator for the butterfly assessment. “The encouraging aspect is that so many people are concerned now and there’s a lot more consciousness. Under the European Union nature restoration law, all member states have to halt the decline in pollinating insects by 2030, and they are going to have to initiate measures. There are landowners who are involved. It is hoped they can get the motivations that will assist them on their way.”
As per Warren, there is “low-hanging fruit” in terms of action for pollinating species which will not lower crop yields – and might boost it – such as farmers developing bloom-filled edges around their fields.
Jessika Roswall, characterized the preservation condition of wild bees, butterflies and other pollinators as “severe”.
“Urgent and collective action is necessary to confront this threat. Along with member countries, the EU Commission has established an Europe-wide tracking system for pollinating insects based on the EU nature restoration law, which will assist in monitoring our advancement. Now, we need to focus on execution and partnership with participating nations to protect our pollinating insects,” she said.
The release of the assessments on bees and butterflies is subsequent to the first European-wide evaluation of hoverflies, an additional essential pollinating insect category. Issued in 2022, it revealed that 37% of all hoverfly species in Europe were threatened with extinction.
