The number of wild bee varieties in the European continent experiencing dying out has increased twofold over the past decade, whereas the count of endangered butterfly has almost doubled.
This critical situation for vital pollinating insects was disclosed by scientific assessments for the IUCN red list, which found that at least one hundred seventy-two bee varieties out of nearly two thousand were at risk of extinction in Europe.
The count of butterfly types threatened with extinction in the European continent has risen from 37 to sixty-five since the previous assessment, carried out a decade and a half ago. One species, the Madeiran large white butterfly (Pieris wollastoni) has now been confirmed extinct.
Apart from their beauty and cultural value, pollinating insects like bees along with butterflies are crucial elements for our health, our food systems and our economies – supporting the fruits, veggies and seeds that nourish us,” said Grethel Aguilar. “The latest European red list assessments reveal significant difficulties, with risks increasing for butterfly species and crucial non-managed bee types.”
The factors of the rapid recent declines are the ongoing damage or destruction of habitats caused by farming intensification and abandoned land, draining wetlands, livestock overgrazing, and the application of pesticides and fertilisers including neonicotinoids. The breaking up of environments suitable for pollinators substantially boosts the risk of extinctions at local level.
Global warming is also revealed to be a significant danger: 52% of all at-risk butterflies in Europe are imperilled by the climate emergency – about twice as many as a ten years ago.
Nearly 90% of blooming plants in European nations rely on pollination by animals, according to the lead coordinator of the wild bee assessment. “Regrettably, wild bee groups are in sharp decrease and are not easily replaceable by managed colonies,” he said. “If non-managed bees disappear, many native plants might be at risk too – of which bloom-filled grasslands and attractive orchid varieties are just a handful of illustrations.”
Fifteen species of bumblebee species, which play a crucial role in pollinating legumes like peas, beans, peanuts and clover, and fourteen varieties of cellophane bee species, recognized for aiding tree pollination such as willow trees and red maples, are now listed as threatened. Simpanurgus phyllopodus, a mining bee type exclusive to the continent and the single type of this biological genus in European nations, is now evaluated as critically endangered – the scientific category closest to disappearance in the wild.
Butterflies that are only found on mountain peaks are particularly vulnerable to climate change as they have to climb upward as their habitats become more heated but eventually run out of space. In Spain’s southern region, the Nevada grayling and the anomalous blue of Andalusia are among over forty percent of species endemic to Europe (solely present in Europe) at risk of extinction.
In the Mediterranean area, species such as the highly at-risk Karpathos grayling are imperilled by severe dry conditions and fires.
In the meantime, in the Arctic region, climate change is resulting in the timberline to shift northward by dozens of meters each year, with bushes invading marsh and tundra. Warmer conditions also mean caribou can no longer cross the ice sheets to feed on Arctic grasslands and maintain them clear. Eight types of butterflies are at risk of extinction in this area, including Freyja’s fritillary butterfly and the ringlet of the Arctic.
“The greatest living space for all these pollinating insects is flower-rich grassland and that is declining quickly across the European continent because of all these reasons,” remarked Martin Warren. “The encouraging aspect is that so many individuals care now and there’s a lot more awareness. Under the European Union nature restoration law, all member countries have to turn around the decline in pollinating insects by twenty-thirty, and they are going to have to begin taking action. There are landowners who are involved. We hope they can get the motivations that will support them on their way.”
According to the coordinator, there is “easy opportunities” in terms of steps for pollinating insects which will not lower agricultural output – and may enhance it – such as growers developing margins rich in flowers around their farmland.
EU commissioner for environment, portrayed the conservation status of native bees, butterflies and additional pollinators as “dire”.
“Urgent and collective action is required to confront this danger. Together with member countries, the European Commission has established an EU-wide monitoring system for pollinating species based on the EU nature restoration regulation, which will help to track our advancement. Now, we need to prioritize execution and collaboration with member states to preserve our pollinators,” she said.
The publication of the evaluations of bees along with butterflies comes after the initial EU-wide assessment of hoverflies, another essential pollinating insect category. Published in twenty-twenty-two, it revealed that over one-third of all hoverfly types in Europe were threatened with extinction.
