Europe faces ‘biodiversity oblivion’ after collapse in French birds, experts warn

Europe faces ‘biodiversity oblivion’ after collapse in French birds, experts warn

The “catastrophic” decline in French farmland birds signals a wider biodiversity crisis in Europe which ultimately imperils all humans, leading scientists have told the Guardian.

A dramatic fall in farmland birds such as skylarks, whitethroats and ortolan bunting in France was revealed by two studies this week, with the spread of neonicotinoid pesticides – and decimation of insect life – coming under particular scrutiny.

With intensive crop production encouraged by the EU’s common agricultural policy apparently driving the bird declines, conservationists are warning that many European countries are facing a second “silent spring” – a term coined by the ecologist Rachel Carson to describe the slump in bird populations in the 1960s caused by pesticides.

“We’ve lost a quarter of skylarks in 15 years. It’s huge, it’s really, really huge. If this was the human population, it would be a major thing,” said Dr Benoit Fontaine of France’s National Museum of Natural History and co-author of one of the new studies, a national survey of France’s common birds. “We are turning our farmland into a desert. We are losing everything and we need that nature, that biodiversity – the agriculture needs pollinators and the soil fauna. Without that, ultimately, we will die.”

Farmland makes up 45% of the EU’s land area, but farmland bird populations in France have fallen by an average of a third over the past 15 years. In some cases, the declines are worse: seven out of 10 meadow pipits have disappeared from French fields over that period, while eight in 10 partridges have vanished over 23 years, according to a second French study which examined 160 areas of typical arable plains in central France.

A meadow pipit. Photograph: Stephane Bouilland/Biosphoto/Alamy

According to the survey, the disappearance of farmland species intensified in the last decade, and again over the last two summers.

Thriving generalist species such as wood pigeons, blackbirds and chaffinches – which also breed in urban areas and woodlands – are increasing nationally but even they are decreasing on farmland, which has led researchers to identify changing farming practices as the cause of big declines.

Scientists point to the correlation between bird declines and the drastic reduction in insect life – such as the 76% fall in abundance of flying insects on German nature reserves over 27 years– which are linked to increasing pesticides and neonicotinoids in particular.

Despite the French government aspiring to halve pesticide use by 2020, sales have climbed, reaching more than 75,000 tonnes of active ingredient in 2014, according to EU figures.

“All birds are dependant on insects in one way or another,” said Fontaine. “Even granivorous birds feed their chicks insects and birds of prey eat birds that eat insects. If you lose 80% of what you eat you cannot sustain a stable population.”

Fontaine said that EU agri-environment were “obviously not” reversing bird declines but he said farmers were not to blame and it was possible to farm to produce food and preserve wildlife.

“Farmers are really willing to do that,” said Fontaine. “They live with a system which is based on large firms that make pesticides and they have to cope with that. They are not the bad guys. The problem is not agriculture, but the solution is really the farmers.”

The declines in France mirror falls across Europe: the abundance of farmland birds in 28 European countries has fallen by 55% in the past three decades, according to figures collated by the European Bird Census Council.

Among 39 species commonly found on European farmland, 24 have declined and only six have increased. The white stork is one of the few success stories, with its revival linked to an increase in artificial nesting sites being provided in towns.

Iván Ramírez, head of conservation for BirdLife Europe & Central Asia, warned that Europe is facing “biodiversity oblivion” on its farmland, with scientific studies attributing the loss of birds to EU farming subsidies. According to Ramírez, countries which have recently joined the EU show declines in farmland birds, while populations have fared better in non-EU states in eastern Europe, where agricultural practices became less intensive after the collapse of the Soviet Union.

Martin Harper, director of conservation for the RSPB in the UK, said: “In the UK the situation is just as concerning. Our beleaguered farmland birds have declined by 56% between 1970 and 2015 along with declines in other wildlife linked to changes in agricultural practices, including the use of pesticides. We urgently need action on both sides of the Channel, and this is something we hope to see from the governments of the UK as we prepare to leave the EU.”

This article was first published by The Guardian on 21 Mar 2018. Lead Image: A red-legged partridge in Burgundy. Eight in 10 partridges have disappeared from France in 23 years, a study showed. Photograph: Pierre Vernay / Biosphoto/Alamy.


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