The total of native bee species in Europe facing disappearance has more than doubled over the past decade, while the total of threatened butterfly has nearly doubled.
This dire scenario for essential pollinating species was unveiled by scientific assessments for the IUCN red list, which found that at least 172 bee varieties out of over 1900 were threatened with extinction in the European continent.
The total of butterfly types threatened with extinction in European nations has risen from 37 to over sixty since the last study, performed over a decade past. A single species, the Madeiran large white butterfly (Pieris wollastoni) has now been confirmed extinct.
Apart from their aesthetic appeal and cultural importance, pollinating insects like bees and butterfly species are crucial elements for our health, our food systems and our economies – supporting the produce, vegetables and seeds that sustain us,” stated the IUCN director general. “The latest assessments of the European red list reveal significant difficulties, with dangers increasing for butterflies and vital native bee types.”
The reasons of the quick recent decreases are the ongoing harm or degradation of habitats caused by farming intensification and abandoned land, wetland drainage, excessive grazing by animals, and the use of chemical fertilisers and pesticides including neonicotinoid chemicals. The division of pollinator-friendly habitat significantly raises the threat of local extinctions.
Global heating is also shown to be a significant danger: 52% of all endangered butterfly types in European nations are endangered by the climate crisis – roughly twofold the amount as a previous decade.
Nearly 90% of blooming plants in European nations rely on pollination by animals, as per the lead coordinator of the wild bee assessment. “Sadly, native bee populations are in severe drop and cannot readily be substituted by managed colonies,” he said. “If wild bees disappear, many wild plants might be in danger as well – of which meadows rich in flowers and lovely orchid types are just a few examples.”
Fifteen species of bumblebees, which play a crucial role in aiding the pollination of peas, beans, peanuts and clover, and 14 types of cellophane bee types, recognized for aiding tree pollination such as willows along with red maples, are now categorized as at-risk. Simpanurgus phyllopodus, a mining bee type found only in the continent and the sole species of this genus in European nations, is now evaluated as critically at risk – the scientific category nearest to dying out in natural habitats.
Butterfly types that are only found on mountain peaks are especially at risk to global warming as they have to climb upward as their habitats become hotter but in the end have no room left. In southern Spain, the Nevada grayling and the Andalusian anomalous blue butterfly are among over forty percent of species endemic to Europe (only found in Europe) threatened with extinction.
In the Mediterranean area, types such as the highly at-risk Karpathos grayling butterfly are endangered by severe dry conditions and fires.
Meanwhile, in the Far North, global warming is leading to the forest boundary to move north by tens of metres each year, with underbrush taking over bog and tundra. Higher temperatures also mean caribou can no longer cross the frozen water to browse Arctic meadows and prevent them from overgrowing. Eight types of butterflies are at risk of extinction in this region, including the fritillary of Freyja and the Arctic ringlet butterfly.
“The largest living space for all these pollinators is grassland rich in flowers and that is disappearing very fast throughout Europe because of all these elements,” remarked Martin Warren. “The encouraging aspect is that so many citizens care now and there’s a lot more consciousness. Under the EU nature restoration legislation, all participating nations have to reverse the drop in pollinating insects by 2030, and they are going to have to begin taking action. There are landowners who are engaged. It is hoped they can obtain the motivations that will help them on their way.”
As stated by Warren, there is “easy opportunities” in terms of action for pollinating insects which won’t reduce food production – and may enhance it – such as growers developing flower-rich margins around their farmland.
Jessika Roswall, characterized the conservation status of native bees, butterflies and additional pollinators as “severe”.
“Immediate and joint measures is required to address this threat. Along with member countries, the Commission of the European Union has implemented an EU-wide tracking system for pollinating species based on the European Union nature restoration legislation, which will help to track our development. Now, we need to prioritize application and partnership with member countries to preserve our pollinating species,” she said.
The release of the evaluations of bees along with butterflies is subsequent to the initial European-wide assessment of hoverflies, an additional vital pollinator group. Issued in 2022, it showed that thirty-seven percent of all hoverfly varieties in Europe were at risk of extinction.
