The count of native bee varieties in Europe facing extinction has over doubled in the last ten years, while the total of at-risk butterfly types has almost doubled.
This pressing issue for essential pollinators was disclosed by scientific assessments for the IUCN red list, which determined that at least 172 bee species out of over 1900 were at risk of extinction in European nations.
The count of butterflies facing extinction in European nations has grown from 37 to 65 since the previous assessment, carried out 14 years ago. A single species, the large white of Madeira (Pieris wollastoni) has now been classified as extinct.
“Beyond their aesthetic appeal and cultural importance, pollinators like bees and butterfly species are essential supports for our physical condition, our food systems and our economic systems – sustaining the fruits, vegetables and seeds that feed us,” said the IUCN director general. “The most recent European red list assessments reveal serious challenges, with risks increasing for butterfly types and essential non-managed bee types.”
The reasons of the swift recent drops are the persistent destruction or damage of habitats caused by agricultural intensification and land abandonment, draining wetlands, overgrazing by livestock, and the application of pesticides and fertilisers including neonicotinoids. The fragmentation of habitat friendly to pollinators substantially boosts the risk of local extinctions.
Global warming is also shown to be a major threat: Fifty-two percent of all endangered butterfly types in European nations are imperilled by the climate emergency – approximately twofold the amount as a previous decade.
Nearly 90% of blooming plants in European nations rely on animal pollination, according to Dr Denis Michez. “Regrettably, non-managed bee populations are in sharp decrease and cannot readily be substituted by managed bee colonies,” he said. “If native bees vanish, many native plants might be at risk too – of which meadows rich in flowers and lovely orchid types are just a handful of illustrations.”
15 varieties of bumblebee types, which have an essential part in pollinating legumes like peas, beans, peanuts and clover, and 14 species of cellophane bee species, famous for fertilizing trees such as willows and red maples, are now classified as threatened. Simpanurgus phyllopodus, a mining bee type found only in the continent and the only species of this genus group in the European continent, is now classified as severely threatened – the scientific category most akin to disappearance in the wild.
Butterfly types that are solely present on high-altitude areas are especially at risk to climate change as they need to move uphill as their living spaces become warmer but eventually run out of space. In Spain’s southern region, the grayling of Nevada and the Andalusian anomalous blue butterfly are among more than 40% of species endemic to Europe (exclusive to Europe) at risk of extinction.
In the Mediterranean region, species such as the critically endangered grayling of Karpathos are imperilled by severe dry conditions and fires.
Meanwhile, in the Far North, climate change is causing the tree line to advance northwards by many meters each year, with bushes encroaching on bog and tundra. Hotter climates also mean caribou can no longer cross the ice sheets to browse Arctic meadows and maintain them clear. 8 butterfly varieties are facing extinction in this area, including Freyja’s fritillary butterfly and the Arctic ringlet butterfly.
“The biggest habitat for all these pollinating species is grassland rich in flowers and that is declining quickly in European nations because of all these factors,” said one of the lead coordinators of the butterflies assessment. “The good news is that so many citizens are aware now and there’s a lot more understanding. Under the EU’s nature restoration regulation, all member states have to turn around the drop in pollinating species by the year 2030, and they are going to have to begin taking action. There are landowners who are interested. It is hoped they can obtain the encouragements that will assist them on their way.”
As per Warren, there is “easy opportunities” in terms of measures for pollinating insects which will not decrease food production – and could improve it – such as growers establishing flower-rich margins around their farmland.
Jessika Roswall, characterized the conservation status of native bees, butterflies and additional pollinators as “severe”.
“Urgent and collective action is necessary to tackle this threat. Along with member states, the European Commission has put in place an EU-wide monitoring system for pollinators based on the European Union nature restoration legislation, which will aid in following our development. Now, we need to concentrate on application and collaboration with member countries to protect our pollinators,” she said.
The issuance of the bee and butterfly assessments is subsequent to the initial Europe-wide evaluation of hoverflies, a further crucial pollinator group. Issued in twenty-twenty-two, it showed that 37% of all hoverfly species in Europe were threatened with extinction.
