Overige insecten

Alarm over toxic pesticide sprayed on Scotland’s woodlands

Scotland’s forests are treated and sprayed every year with hundreds of kilograms of a toxic pesticide blamed for killing bees and butterflies, The Ferret can reveal. Our investigation has uncovered widespread use of the nicotine-based insecticide, acetamiprid, by the forestry industry, provoking concerns from experts and alarm from environmentalists who fear “creeping degradation” of nature.

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'.

Biodiversity in crisis: How close to the brink is life on Earth?

“SEE those little beetles with a black cross on a red background?” I lean in to take a look. “They’re Panagaeus cruxmajor – the crucifix ground beetle. They were collected by Charles Darwin back in the 1820s.” Ed Turner is curator of insects at the University of Cambridge’s Zoology Museum, where many of Darwin’s beetle collections are held. He is proud to show me specimens collected by the man himself, and I am chuffed to see them. But the thrill doesn’t last.

Zwaluwen gaan ten onder aan het gebrek aan insecten

Het lijkt misschien prettig, minder insecten die van de voorruit gewassen moeten worden of ons lastig vallen in de tuin. Maar de massale insectensterfte is vooral heel zorgelijk en gevaarlijk voor de kringloop van het leven. Al jaren neemt het aantal insecten af, in sommige gebieden is in de afgelopen decennia zelfs een daling tot 75% geregistreerd. Dit blijft niet zonder gevolgen. Ecoloog Jan Doevendans volgt al tientallen jaren de zwaluwpopulaties. Sinds de jaren ’70 heeft hij honderden nestkasten opgehangen, onder meer in Groningen en het Lauwersmeergebied.

Long term use of some pesticides is killing off dung beetle populations

New research led by scientists at the University of Bristol has uncovered that long-term use of some pesticides to treat cattle for parasites is having a significantly detrimental effect on the dung beetle population. Researchers studied 24 cattle farms across south west England and found that farms that used certain pesticides had fewer species of dung beetle. Dr Bryony Sands, from the University's School of Biological Sciences, who led the research, said: "Dung beetles recycle dung pats on pastures, bringing the nutrients back into the soil and ensuring the pastures are fertile.

Zahl der Gartenvögel nimmt ab

Seit 14 Jahren ruft der NABU inzwischen Anfang Mai zu Vogelzählaktionen auf. In diesem Jahr waren die Menschen bundesweit von Vater- bis Muttertag dazu aufgerufen, die Vögel im heimischen Garten zu zählen. Bis zum vergangenen Montag konnten die Teilnehmer die Ergebnisse melden. Während sich die Veranstalter über die rege Beteiligung freuen - 53.000 Vogelfreunde haben sich zurückgemeldet - finden sie die Ergebnisse besorgniserregend. Denn unter den Top 15 der Gartenvögel weisen sieben Arten so geringe Zahlen auf wie noch nie.

Lack of insects in the Netherlands is bugging the house martin

Bird protection organisation Vogelbescherming has named 2018 the Year of the House Martin in an effort to call attention to the dramatic decline of this migratory bird in the Netherlands, public broadcaster NOS reports. Together with bird research group Sovon, Vogelbescherming has mobilised a group of volunteers to find the cause of the dwindling numbers of house martins (Delichon urbicum). Since 1970 some 80% fewer house martins have been spotted in this country and it is thought that since 1920 the decline could be as much as 95%.

Dramatic decline of insects in the Netherlands

Scientific research commissioned by Natuurmonumenten shows that the number of insects is declining dramatically in the Netherlands. Measurements and analyses in recent decades show a decline of 54 percent (ground beetles) and 72 percent (ground beetles) in nature reserves. This represents a dramatic fall in these groups of insects, which is in line with the results of recent German, French, English and Dutch studies. And this is bad, as it has a huge impact on the cycle of life.