The total of wild bee species in Europe experiencing dying out has over doubled over the past decade, while the number of endangered butterfly types has nearly doubled.
This critical situation for essential pollinating species was revealed by scientific assessments for the International Union for Conservation of Nature (IUCN) red list, which found that at least over 170 bee types out of over 1900 were at risk of extinction in Europe.
The total of butterfly types facing extinction in Europe has risen from 37 to over sixty since the earlier research, conducted a decade and a half ago. One type, the Madeiran large white butterfly (Pieris wollastoni) has now been declared extinct.
Apart from their aesthetic appeal and cultural importance, pollinating insects like bees along with butterflies are crucial elements for our physical condition, our food chains and our economies – sustaining the fruits, vegetables and seeds that feed us,” said the IUCN’s director general. “The most recent European red list evaluations reveal serious challenges, with dangers mounting for butterflies and essential non-managed bee types.”
The factors of the swift recent drops are the persistent destruction or damage of natural habitats caused by intensive agriculture and deserted farmland, draining wetlands, overgrazing by livestock, and the use of chemical fertilisers and pesticides including neonicotinoid chemicals. The breaking up of environments suitable for pollinators greatly increases the risk of local extinctions.
Global heating is also demonstrated to be a major threat: Over half of all endangered butterflies in Europe are threatened by the climate emergency – roughly twice as many as a previous decade.
As many as 90% of plants that flower in European nations require insect pollination, according to the wild bee assessment’s lead coordinator. “Regrettably, native bee populations are in drastic decline and cannot be easily replaced by domesticated hives,” he said. “If native bees vanish, many non-cultivated plants might be threatened too – of which flower-rich meadows and attractive orchid varieties are just a handful of illustrations.”
15 varieties of bumblebees, which play a crucial role in aiding the pollination of crops such as peas, beans, peanuts and clover, and fourteen varieties of cellophane bee types, famous for fertilizing trees such as willows along with red maples, are now listed as threatened. Simpanurgus phyllopodus, a mining bee type exclusive to the mainland and the sole species of this genus in European nations, is now evaluated as critically at risk – the scientific classification nearest to disappearance in the wild.
Butterfly species that are exclusively located on mountain tops are especially at risk to global heating as they must ascend higher as their environments become more heated but eventually exhaust available space. In southern Spain, the Nevada grayling butterfly and the Andalusian anomalous blue butterfly are among above 40 percent of types unique to Europe (exclusive to Europe) at risk of extinction.
In the Mediterranean, varieties such as the severely threatened grayling of Karpathos are endangered by intense drought and wildfires.
In the meantime, in the Far North, global heating is resulting in the forest boundary to move north by tens of metres each year, with scrub invading wetlands and tundra. Hotter climates also mean caribou can no longer cross the frozen water to browse northern grasslands and keep them open. 8 butterfly varieties are at risk of extinction in this zone, including the fritillary of Freyja and the Arctic ringlet.
“The biggest living space for all these pollinating species is bloom-filled grassy areas and that is declining quickly in the European continent because of all these reasons,” remarked a lead coordinator for the butterfly assessment. “The encouraging aspect is that so many citizens are aware now and there’s a lot more consciousness. Under the EU nature restoration legislation, all member countries 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. We hope they can obtain the incentives 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 farmland.
Jessika Roswall, described the preservation condition of native bees, butterflies and additional pollinators as “dire”.
“Urgent and collective action is required to address this danger. Along with member states, the Commission of the European Union has established an Europe-wide tracking system for pollinators based on the EU nature restoration law, which will help to track our advancement. Now, we need to concentrate on implementation and collaboration with participating nations to safeguard our pollinating insects,” she said.
The publication of the bee and butterfly assessments comes after the first European-wide assessment of hoverflies, another vital pollinating insect category. Published in 2022, it showed that 37% of all hoverfly species in the European continent were threatened with extinction.
