The number of native bee varieties in Europe facing extinction has over doubled during the previous ten-year period, and the number of endangered butterfly types has nearly doubled.
This dire scenario for crucial pollinators was unveiled by research studies for the IUCN red list, which established that at least 172 bee species out of nearly two thousand were at risk of extinction in the European continent.
The count of butterfly species at risk of extinction in European nations has increased from over thirty-five to sixty-five since the earlier research, performed a decade and a half ago. One species, the Madeiran large white (Pieris wollastoni) has now been classified as extinct.
“Beyond their aesthetic appeal and cultural significance, pollinating insects like bees along with butterflies are lifelines for our physical condition, our food systems and our economies – supporting the produce, vegetables and seeds that sustain us,” commented Grethel Aguilar. “The latest European red list evaluations reveal serious challenges, with risks increasing for butterfly types and crucial native bee types.”
The causes of the quick recent decreases are the persistent damage or destruction of living environments caused by farming intensification and land abandonment, draining of wetlands, overgrazing by livestock, and the application of fertilisers and pesticides including neonicotinoids. The fragmentation of habitat friendly to pollinators greatly increases the threat of local extinctions.
Global warming is also demonstrated to be a significant danger: Over half of all threatened butterfly species in the European continent are endangered by the climate emergency – approximately twofold the amount as a previous decade.
As many as 90% of plants that flower in Europe rely on insect pollination, as stated by the wild bee assessment’s lead coordinator. “Regrettably, wild bee groups are in severe drop and cannot be easily replaced by managed bee colonies,” he said. “If native bees disappear, many wild plants might be at risk too – of which flower-rich meadows and lovely orchid types are just a handful of illustrations.”
15 varieties of bumblebee species, which perform a vital function in aiding the pollination of peas, beans, peanuts and clover, and fourteen varieties of cellophane bees, famous for aiding tree pollination such as willows along with red maples, are now listed as threatened. Simpanurgus phyllopodus, a mining bee exclusive to the mainland and the only species of this genus in Europe, is now classified as critically endangered – the research category most akin to disappearance in the wild.
Butterfly types that are solely present on mountain peaks are highly susceptible to global heating as they must ascend higher as their habitats become more heated but in the end exhaust available space. In southern Spain, the grayling of Nevada and the Andalusian anomalous blue butterfly are among over forty percent of types unique to Europe (solely present in Europe) facing extinction.
In the Mediterranean, species such as the critically endangered Karpathos grayling butterfly are endangered by intense dry conditions and fires.
Meanwhile, in the Arctic region, global heating is resulting in the timberline to shift northward by many meters each year, with scrub encroaching on bog and tundra. Hotter climates also mean caribou can no longer cross the ice sheets to browse Arctic meadows and prevent them from overgrowing. Eight types of butterflies are facing extinction in this zone, including the fritillary of Freyja and the Arctic ringlet.
“The largest living space for all these pollinating insects is bloom-filled grassy areas and that is declining quickly across European nations because of all these factors,” remarked Martin Warren. “The positive thing is that so many individuals are concerned now and there’s a lot more awareness. Under the EU nature restoration legislation, all participating nations have to turn around the decrease in pollinating insects by 2030, and they are going to have to initiate measures. There are land holders who are engaged. It is hoped they can get the motivations that will help them on their way.”
As per Martin Warren, there is “low-hanging fruit” in terms of steps for pollinating insects which will not lower food production – and might boost it – such as farmers developing bloom-filled edges around their cultivated areas.
EU commissioner for environment, described the preservation condition of native bees, butterflies and additional pollinators as “dire”.
“Urgent and collective action is necessary to confront this danger. Along with participating nations, the Commission of the European Union has put in place an European Union-wide tracking system for pollinating species based on the EU nature restoration regulation, which will aid in following our advancement. Now, we need to focus on application and collaboration with participating nations to preserve our pollinating species,” she said.
The release of the bee and butterfly assessments follows the pioneering Europe-wide evaluation of hoverflies, an additional crucial pollinating insect category. Issued in 2022, it revealed that thirty-seven percent of all hoverfly species in Europe were facing extinction.
