The total of wild bee varieties in European nations experiencing disappearance has over doubled in the last ten years, while the number of at-risk butterfly types has close to doubled.
This critical situation for crucial pollinating species was revealed by research studies for the red list of threatened species, which found that at least 172 bee varieties out of nearly two thousand were facing extinction in European nations.
The number of butterfly species threatened with extinction in European nations has grown from thirty-seven to over sixty since the previous assessment, carried out 14 years ago. One type, the Madeiran large white butterfly (Pieris wollastoni) has now been confirmed extinct.
“Beyond their aesthetic appeal and cultural significance, pollinators like bees and butterfly species are essential supports for our physical condition, our food chains and our economies – sustaining the fruits, veggies and seeds that feed us,” stated Grethel Aguilar. “The newest European red list evaluations reveal significant difficulties, with dangers increasing for butterflies and crucial non-managed bee types.”
The causes of the quick recent decreases are the continuing damage or destruction of habitats caused by agricultural intensification and deserted farmland, wetland drainage, overgrazing by livestock, and the utilization of pesticides and fertilisers including neonicotinoid pesticides. The breaking up of environments suitable for pollinators greatly increases the risk of disappearances in specific areas.
Climate change is also demonstrated to be a significant danger: 52% of all at-risk butterfly species in Europe are imperilled by the climate change crisis – roughly twofold the amount as a ten years ago.
As many as nine out of ten of plants that flower in European nations rely on insect pollination, according to the lead coordinator of the wild bee assessment. “Unfortunately, non-managed bee colonies are in severe drop and are not easily replaceable by managed colonies,” he said. “If wild bees die out, many wild plants might be in danger as well – of which flower-rich meadows and attractive orchid varieties are just a couple of instances.”
15 varieties of bumblebees, which have an essential part in fertilizing legumes like peas, beans, peanuts and clover, and fourteen varieties of cellophane bees, recognized for aiding tree pollination such as willows along with red maples, are now classified as threatened. Simpanurgus phyllopodus, a mining bee exclusive to the European continent and the single type of this biological genus in the European continent, is now classified as severely threatened – the scientific category closest to disappearance in the wild.
Butterfly species that are exclusively located on mountain peaks are especially at risk to global heating as they must ascend higher as their habitats become more heated but in the end have no room left. In southern Spain, the grayling of Nevada and the Andalusian anomalous blue butterfly are among over forty percent of European endemics (solely present in Europe) at risk of extinction.
In the Mediterranean, types such as the highly at-risk grayling of Karpathos are imperilled by intense dry conditions and fires.
Meanwhile, in the Arctic Circle, global heating is resulting in the forest boundary to shift northward by dozens of meters each year, with scrub invading marsh and tundra. Warmer conditions also mean reindeer can no more cross the ice to browse Arctic grasslands and prevent them from overgrowing. 8 butterfly varieties are facing extinction in this region, including Freyja’s fritillary and the ringlet of the Arctic.
“The greatest living space for all these pollinating insects 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 people are concerned now and there’s a lot more understanding. Under the EU’s nature restoration regulation, all participating nations have to turn around the decrease in pollinating insects by the year 2030, and they are going to have to begin taking action. There are land holders who are involved. We hope they can obtain the incentives that will assist them on their way.”
According to the coordinator, there is “easy opportunities” in terms of action for pollinating insects which will not decrease crop yields – and could improve it – such as farmers creating bloom-filled edges around their fields.
EU commissioner for environment, described the preservation condition of non-managed bees, butterfly species and other pollinating insects as “severe”.
“Urgent and collective action is needed to confront this threat. Along with participating nations, the European Commission has put in place an European Union-wide observation system for pollinating insects based on the EU nature restoration regulation, which will help to track our progress. Now, we need to focus on execution and collaboration with member countries to safeguard our pollinators,” she said.
The issuance of the bee and butterfly assessments is subsequent to the first Europe-wide study on hoverflies, an additional crucial pollinator group. Issued in 2022, it showed that thirty-seven percent of all hoverfly types in Europe were facing extinction.
