The number of native bee varieties in Europe confronting disappearance has over doubled over the past decade, whereas the total of endangered butterfly has nearly doubled.
This dire scenario for vital pollinating species was disclosed by scientific studies for the IUCN red list, which determined that at least 172 bee types out of 1,928 were threatened with extinction in Europe.
The count of butterfly species at risk of extinction in Europe has risen from over thirty-five to 65 since the earlier research, conducted a decade and a half ago. One type, the large white of Madeira (Pieris wollastoni) has now been confirmed extinct.
“Beyond their aesthetic appeal and cultural importance, pollinating species like bees along with butterflies are essential supports for our health, our food supplies and our financial structures – supporting the fruits, vegetables and seeds that feed us,” stated the IUCN director general. “The latest assessments of the European red list reveal serious challenges, with dangers growing for butterfly species and essential native bee types.”
The reasons of the swift recent drops are the ongoing damage or destruction of living environments caused by farming intensification and abandoned land, wetland drainage, excessive grazing by animals, and the utilization of fertilisers and pesticides including neonicotinoids. The breaking up of pollinator-friendly habitat substantially boosts the danger of extinctions at local level.
Climate change is also shown to be a primary risk: 52% of all at-risk butterflies in Europe are threatened by the climate emergency – roughly twofold the amount as a ten years ago.
Up to 90% of plants that flower in European nations rely on insect pollination, as per Dr Denis Michez. “Regrettably, native bee colonies are in severe drop and are not easily replaceable by managed bee colonies,” he said. “If native bees die out, many non-cultivated plants might be threatened too – of which flower-rich meadows and lovely orchid types are just a few examples.”
Fifteen types of bumblebees, which play a crucial role in fertilizing crops such as peas, beans, peanuts and clover, and 14 species of cellophane bee types, known for aiding tree pollination such as willow trees and red maples, are now categorized as at-risk. Simpanurgus phyllopodus, a mining bee species exclusive to the mainland and the only species of this biological genus in Europe, is now evaluated as critically endangered – the scientific category closest to extinction in the wild.
Butterfly species that are exclusively located on mountain peaks are especially at risk to climate change as they need to move uphill as their environments become hotter but in the end have no room left. In southern Spain, the grayling of Nevada and the Andalusian anomalous blue butterfly are among more than 40% of European endemics (exclusive to Europe) threatened with extinction.
In the Mediterranean region, species such as the highly at-risk Karpathos grayling are threatened by extreme dry conditions and fires.
In the meantime, in the Far North, climate change is resulting in the forest boundary to move north by many meters each year, with bushes taking over bog and tundra. Hotter climates also mean caribou can no more cross the frozen water to feed on Arctic grasslands and prevent them from overgrowing. Eight types of butterflies are facing extinction in this zone, including the fritillary of Freyja and the ringlet of the Arctic.
“The biggest environment for all these pollinating insects is flower-rich grassland and that is declining quickly across European nations because of all these elements,” stated a lead coordinator for the butterfly assessment. “The good news is that so many people are aware now and there’s a lot more awareness. Under the EU’s nature restoration regulation, all participating nations have to halt the decline in pollinating insects by 2030, and they are going to have to begin taking action. There are landowners who are engaged. We hope they can get the incentives that will support them on their way.”
As per Warren, there is “easy opportunities” in terms of measures for pollinating species which will not lower crop yields – and might boost it – such as growers developing flower-rich margins around their cultivated areas.
Jessika Roswall, portrayed the conservation status of non-managed bees, butterfly species and other pollinating insects as “dire”.
“Prompt and unified steps is required to confront this danger. In collaboration with member countries, the European Commission has put in place an EU-wide observation system for pollinating species based on the EU nature restoration law, which will aid in following our development. Now, we need to prioritize application and cooperation with member countries to safeguard our pollinating insects,” she said.
The publication of the assessments on bees and butterflies follows the initial Europe-wide evaluation of hoverflies, an additional vital pollinator group. Published in 2022, it revealed that over one-third of all hoverfly types in European nations were facing extinction.
