The total of native bee species in Europe confronting disappearance has increased twofold in the last ten years, while the total of endangered butterfly species has nearly doubled.
This dire scenario for crucial pollinating species was revealed by research studies for the International Union for Conservation of Nature (IUCN) red list, which established that at least 172 bee varieties out of 1,928 were at risk of extinction in European nations.
The total of butterfly species facing extinction in Europe has risen from thirty-seven to over sixty since the earlier research, performed 14 years ago. One species, the large white of Madeira (Pieris wollastoni) has now been confirmed extinct.
“Beyond their visual charm and cultural significance, pollinating insects like bees and butterfly species are essential supports for our health, our food systems and our economic systems – sustaining the produce, vegetables and seeds that feed us,” said the IUCN director general. “The newest European red list assessments reveal major obstacles, with threats mounting for butterfly types and vital wild bee types.”
The causes of the swift recent drops are the continuing harm or degradation of habitats caused by agricultural intensification and abandoned land, draining wetlands, livestock overgrazing, and the application of fertilisers and pesticides including neonicotinoid pesticides. The division of environments suitable for pollinators greatly increases the risk of disappearances in specific areas.
Global warming is also shown to be a major threat: Fifty-two percent of all at-risk butterflies in Europe are endangered by the climate change crisis – about twofold the amount as a decade ago.
Nearly ninety percent of flowering plants in Europe depend on insect pollination, as stated by Dr Denis Michez. “Unfortunately, native bee colonies are in sharp decrease and cannot readily be substituted by managed colonies,” he said. “If non-managed 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.”
15 varieties of bumblebee types, which have an essential part in aiding the pollination of legumes like peas, beans, peanuts and clover, and 14 species of cellophane bees, known for fertilizing trees such as willows and red maples, are now categorized as at-risk. Simpanurgus phyllopodus, a mining bee exclusive to the mainland and the only species of this genus in European nations, is now evaluated as critically at risk – the research category nearest to dying out in natural habitats.
Butterfly species that are exclusively located on mountain peaks are especially at risk to global warming as they need to move uphill as their environments become more heated but in the end exhaust available space. In Spain’s southern region, the Nevada grayling butterfly and the Andalusian anomalous blue butterfly are among more than 40% of European endemics (solely present in Europe) threatened with extinction.
In the Mediterranean, types such as the highly at-risk Karpathos grayling butterfly are threatened by extreme drought and wildfires.
Meanwhile, in the Arctic region, climate change is resulting in the forest boundary to move north by many meters each year, with bushes invading bog and tundra. Warmer conditions also mean caribou can no more cross the ice to browse Arctic grasslands and prevent them from overgrowing. Eight butterfly species are facing extinction in this zone, including Freyja’s fritillary butterfly and the ringlet of the Arctic.
“The biggest living space for all these pollinators is grassland rich in flowers and that is vanishing rapidly across Europe because of all these reasons,” remarked a lead coordinator for the butterfly assessment. “The positive thing is that so many people are concerned now and there’s a lot more consciousness. Under the EU’s nature restoration regulation, all member countries have to reverse the decline in pollinating insects by the year 2030, and they are going to have to initiate measures. There are landowners who are involved. We hope they can get the incentives that will help them on their way.”
As stated by Martin Warren, there is “low-hanging fruit” in terms of measures for pollinating insects which will not decrease food production – and might boost it – such as agricultural producers establishing margins rich in flowers around their fields.
EU commissioner for environment, portrayed the conservation status of native bees, butterflies and additional pollinators as “critical”.
“Prompt and unified steps is necessary to confront this danger. Along with member countries, the Commission of the European Union has established an EU-wide tracking system for pollinating insects based on the EU nature restoration regulation, which will aid in following our progress. Now, we need to concentrate on implementation and partnership with member states to safeguard our pollinating species,” she said.
The issuance of the assessments on bees and butterflies follows the pioneering European-wide evaluation of hoverflies, a further crucial group of pollinators. Released in twenty-twenty-two, it disclosed that over one-third of all hoverfly species in European nations were threatened with extinction.
