The total of wild bee species in European nations confronting extinction has increased twofold over the past decade, and the total of endangered butterfly species has nearly doubled.
This critical situation for crucial pollinating insects was disclosed by scientific assessments for the IUCN red list, which found that at least one hundred seventy-two bee types out of over 1900 were facing extinction in European nations.
The total of butterfly species at risk of extinction in Europe has grown from thirty-seven to sixty-five since the last study, performed 14 years ago. One species, the large white of Madeira (Pieris wollastoni) has now been confirmed extinct.
“Beyond their aesthetic appeal and cultural significance, pollinating species like bees and butterflies are crucial elements for our well-being, our food supplies and our financial structures – supporting the fruits, veggies and seeds that nourish us,” stated the IUCN’s director general. “The newest European red list assessments reveal serious challenges, with dangers mounting for butterfly species and vital non-managed bee types.”
The reasons of the rapid recent declines are the persistent harm or degradation of habitats caused by intensive agriculture and abandoned land, draining of wetlands, excessive grazing by animals, and the application of fertilisers and pesticides including neonicotinoid pesticides. The breaking up of environments suitable for pollinators significantly raises the risk of disappearances in specific areas.
Global heating is also demonstrated to be a major threat: Over half of all endangered butterfly types in the European continent are imperilled by the climate change crisis – approximately double the number as a previous decade.
As many as ninety percent of plants that flower in Europe depend on pollination by animals, as stated by Dr Denis Michez. “Regrettably, wild bee colonies are in severe drop and are not easily replaceable by domesticated hives,” he said. “If non-managed bees disappear, many non-cultivated plants might be threatened too – of which meadows rich in flowers and lovely orchid types are just a handful of illustrations.”
Fifteen types of bumblebees, which perform a vital function in pollinating legumes like peas, beans, peanuts and clover, and fourteen varieties of cellophane bee types, famous for pollinating trees such as willow trees and red maples, are now categorized as at-risk. Simpanurgus phyllopodus, a mining bee exclusive to the European continent and the only species of this genus in Europe, is now evaluated as critically endangered – the scientific classification most akin to extinction in the wild.
Butterflies that are only found on mountain tops are particularly vulnerable to climate change as they must ascend higher as their habitats become hotter but ultimately exhaust available space. In Spain’s southern region, the grayling of Nevada and the Andalusian anomalous blue butterfly are among over forty percent of types unique to Europe (solely present in Europe) threatened with extinction.
In the Mediterranean area, types such as the highly at-risk grayling of Karpathos are endangered by intense dry conditions and fires.
Meanwhile, in the Far North, climate change is leading to the tree line to advance northwards by dozens of meters each year, with underbrush taking over marsh and tundra. Higher temperatures also mean Arctic deer can not anymore cross the ice sheets to graze northern grasslands and prevent them from overgrowing. 8 butterfly varieties are threatened with extinction in this area, including Freyja’s fritillary butterfly and the ringlet of the Arctic.
“The largest living space for all these pollinating insects is bloom-filled grassy areas and that is vanishing rapidly throughout Europe because of all these factors,” stated one of the lead coordinators of the butterflies assessment. “The encouraging aspect is that so many individuals are concerned now and there’s a lot more consciousness. Under the European Union nature restoration law, all participating nations have to halt the decrease in pollinating insects by the year 2030, and they are going to have to start doing something. There are landowners who are engaged. Let’s hope they can receive the motivations that will help them on their way.”
As stated by Warren, there is “low-hanging fruit” in terms of action for pollinators which will not lower agricultural output – and could improve it – such as farmers developing flower-rich margins around their fields.
Jessika Roswall, portrayed the conservation status of native bees, butterflies and additional pollinators as “critical”.
“Immediate and joint measures is needed to address this risk. Together with member states, the European Commission has put in place an EU-wide monitoring system for pollinating insects based on the EU nature restoration regulation, which will aid in following our development. Now, we need to prioritize implementation and collaboration with member countries to safeguard our pollinating insects,” she said.
The publication of the bee and butterfly assessments is subsequent to the pioneering EU-wide evaluation of hoverflies, another essential pollinator group. Issued in 2022, it disclosed that over one-third of all hoverfly types in Europe were threatened with extinction.
