Vlinders

Butterfly numbers in the UK's woods have dropped by almost 60% since 1990

Since 1990, butterfly numbers have dropped by 58 per cent in woods, a government study has found. The report was published in June 2018 by the Department for environment, food and rural affairs (Defra). Woodland species that are struggling include the brown argus, common blue, peacock and purple hairstreak .In response to the report, charities have claimed that reform is needed to the country's farming laws in order to protect the environment in the wake of Brexit. They say the latest figures offer more evidence to support expert predictions of an 'ecological Armageddon'.

Minister stuurt rapport insectensterfte naar Tweede Kamer

De insectensterfte in Duitse natuurgebieden was veel in het nieuws vorig najaar. In opdracht van Minister Schouten van LNV is er nu een rapport verschenen over de uitkomsten van dat onderzoek, de vergelijkbaarheid met de Nederlandse situatie, de kennis over de trends bij Nederlandse insecten en de mogelijke oorzaken. Vlinder- en libellenmeetnetten vormen een belangrijke bron voor dit rapport.

In de rapportage worden vier onderzoeksvoorstellen geformuleerd die nodig zijn voor een integrale aanpak van de problemen:

Demise of the monarch amidst plummeting pheasant populations in South Dakota

The state pheasant population has dropped by 45 percent since 2016 — 65 percent lower than the 10-year average. Results from hunting have mirrored the decline. In 2007, the estimated pheasant bag was more than 2 million birds. In 2017, it was just more than 1 million, according to South Dakota Game, Fish and Parks. “Looking at the weather right now, we’re off to a record cold April,” said Travis Runia, senior upland game biologist for Game Fish and Parks. Many factors contribute to the last decade of pheasant decline, Runia said.

Michael McCarthy: We’ve lost half our wildlife. Now’s the time to shout about it

Most Britons remain blithely unaware that since the Beatles broke up, we have wiped out half our wildlife. Yet we are not alone. Last week, the French woke up in a dramatic way to the fact that their own farmland birds, their skylarks and partridges and meadow pipits, were rapidly disappearing: Le Monde, the most sober of national journals, splashed the fact across the top of its front page.

Environmental impacts of neonicotinoids outweigh crop yield benefits

Neonicotinoid use has increased rapidly in recent years, with a global shift toward insecticide applications as seed coatings rather than aerial spraying. While the use of seed coatings can lessen the amount of overspray and drift, the near universal and prophylactic use of neonicotinoid seed coatings on major agricultural crops has led to widespread detections in the environment (pollen, soil, water, honey).

Protecting our butterflies is vital to the environment

The State of the Nations Butterfly report which is published every five years shows long term and ten year trends – and it’s waving a danger flag. The most recent report published in 2015 indicates that overall a staggering 76 percent of our butterflies declined in abundance and occurrence over the past 40 years.

Four species of butterfly have become extinct over the past 150 years and the rest face an uncertain future. Our moths are doing no better as the total number over the past 40 years has declined overall by 28 percent, even as low as 40 percent in southern areas.

De ondergang van vlinders in Nederland is slechts een kwestie van tijd

Het aantal vlinders in Nederland is sinds 1992 afgenomen met bijna 40%. Kijkend naar de beschikbare gegevens tot 1950, zou de achteruitgang ook wel eens 75% kunnen zijn. Dankzij de honderden vrijwilligers die al jarenlang wekelijks de vlinders en libellen tellen op vaste routes weten we gedetailleerd hoe het met een belangrijke groep insecten gaat. Voor vlinders kunnen we zelfs al een betrouwbaar onderscheid maken tussen de achteruitgang in onder andere bos, stad en agrarisch gebied. En duidelijk is dat de afname veruit het grootst is in het agrarisch gebied.

UK’s favourite wildlife species at risk of extinction

Some of Britain’s favourite wildlife is at risk of becoming extinct unless there is a new, 21st-century agricultural revolution, experts are warning. Species from hedgehogs to skylarks and birds of prey are being wiped out – in part by companies with vested interests in “destructive” factory farming, it was claimed on World Wildlife Day, which takes place today. The “alarming” declines in wildlife will threaten not just the richness of the planet but also our ability to grow food, according to the RSPB.

EFSA confirma que los neonicotinoides son peligrosos para las abejas y polinizadores silvestres

Rachel Carson escribió el 27 de septiembre de 1962 Primavera Silenciosa, (Silent Spring) que advertía de los efectos perjudiciales de los pesticidas en el medio ambiente -especialmente en las aves- sin saber que los polinizadores vitales para la biodiversidad y la alimentación serían uno de los más perjudicados en su libro ya culpaba a la industria química de la creciente contaminación.​ En septiembre del 2010 el Dr Toxicólogo Henk Tennekes publicó un articulo científico en una revista de toxicología, Siguió un libro….. “Un Desastre en Potencia”.