The number of native bee varieties in Europe confronting dying out has increased twofold in the last ten years, while the count of threatened butterfly types has almost doubled.
This pressing issue for crucial pollinating insects was unveiled by scientific assessments for the red list of threatened species, which determined that at least over 170 bee varieties out of nearly two thousand were facing extinction in the European continent.
The total of butterfly types facing extinction in European nations has increased from over thirty-five to over sixty since the previous assessment, conducted over a decade past. A single species, the Madeiran large white (Pieris wollastoni) has now been confirmed extinct.
In addition to their aesthetic appeal and cultural importance, pollinators like bees along with butterflies are essential supports for our physical condition, our food systems and our financial structures – supporting the fruits, vegetables and seeds that nourish us,” stated the IUCN’s director general. “The latest European red list evaluations reveal significant difficulties, with risks increasing for butterflies and essential native bee varieties.”
The causes of the rapid recent declines are the continuing harm or degradation of habitats caused by intensive agriculture and abandoned land, draining of wetlands, livestock overgrazing, and the application of fertilisers and pesticides including neonicotinoids. The division of environments suitable for pollinators significantly raises the threat of extinctions at local level.
Global warming is also revealed to be a primary risk: 52% of all threatened butterfly types in European nations are imperilled by the climate crisis – about twice as many as a ten years ago.
Nearly ninety percent of blooming plants in the European continent require pollination by animals, as stated by Dr Denis Michez. “Unfortunately, wild bee colonies are in sharp decrease and cannot be easily replaced by managed bee colonies,” he said. “If native bees disappear, many wild plants might be threatened too – of which meadows rich in flowers and beautiful orchid species are just a couple of instances.”
Fifteen types of bumblebees, which perform a vital function in aiding the pollination of crops such as peas, beans, peanuts and clover, and 14 species of cellophane bee types, famous for pollinating trees such as willows along with red maples, are now classified as threatened. Simpanurgus phyllopodus, a mining bee species exclusive to the mainland and the only species of this genus group in Europe, is now evaluated as critically endangered – the scientific category closest to dying out in natural habitats.
Butterfly species that are exclusively located on mountain tops are highly susceptible to global heating as they have to climb upward as their habitats become hotter but ultimately have no room left. 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 (solely present in Europe) threatened with extinction.
In the Mediterranean, varieties such as the severely threatened Karpathos grayling are endangered by severe wildfires and drought.
At the same time, in the Far North, climate change is causing the timberline to advance northwards by many meters each year, with bushes encroaching on marsh and tundra. Higher temperatures also mean caribou can no longer cross the ice to browse Arctic meadows and maintain them clear. 8 butterfly varieties are at risk of extinction in this area, including Freyja’s fritillary and the Arctic ringlet.
“The greatest living space for all these pollinating species is bloom-filled grassy areas and that is vanishing rapidly in the European continent because of all these factors,” said a lead coordinator for the butterfly assessment. “The encouraging aspect is that so many citizens are concerned now and there’s a lot more awareness. Under the EU nature restoration legislation, all member states have to halt the decrease in pollinating insects by twenty-thirty, and they are going to have to begin taking action. There are land holders who are involved. Let’s hope they can get the encouragements that will help them on their way.”
As per Warren, there is “readily achievable actions” in terms of measures for pollinating insects which won’t reduce crop yields – and could improve it – such as agricultural producers developing margins rich in flowers around their fields.
Jessika Roswall, characterized the preservation condition of wild bees, butterflies and other pollinators as “severe”.
“Prompt and unified steps is required to confront this threat. Together with participating nations, the European Commission has implemented an EU-wide monitoring system for pollinators based on the European Union nature restoration legislation, which will help to track our advancement. Now, we need to focus on execution and partnership with participating nations to preserve our pollinating species,” she said.
The publication of the bee and butterfly assessments comes after the pioneering European-wide assessment of hoverflies, a further essential pollinating insect category. Issued in twenty-twenty-two, it disclosed that over one-third of all hoverfly types in Europe were facing extinction.