Roofvogels

Negen soorten broedvogels zijn in Nederland uitgestorven en 87 soorten worden nu in hun voortbestaan bedreigd

Het aantal bedreigde broedvogels in Nederland neemt toe. Er staan negen broedvogels meer op de Rode Lijst dan in de vorige publicatie in 2004. Onder meer de torenvalk (Falco tinnunculus) en de wulp (Numenius arquata) staan er nu ook op. Op basis van tellingen van Sovon Volgelonderzoek is te zien welke soorten er zijn verdwenen en welke broedvogels het snelst uitsterven.

The hen harrier remains on the brink of extinction as a breeding species in England

The fifth UK and Isle of Man hen harrier (Circus cyaneus) survey was conducted in 2016, with the number of territorial pairs estimated at 575: a 13% decline since the previous survey in 2010. Comparison with the estimate from the 2004 survey, demonstrates a significant decline of 27% over the past 12 years. In Scotland, the population was estimated at 460 territorial pairs, this being 80% of all UK and Isle of Man pairs in 2016.

The future for the Montagu's Harrier looks very bleak

In the course of the 20th century, the breeding population of the Montagu's Harrier (Circus pygargus) decreased dramatically in The Netherlands. In the first half of the century, it was a fairly common and widespread breeding bird in dunes, heathland, moors and marshland. The species has disappeared from large sections of the country from the 1950s onwards, with the exception of a temporal increase in newly reclaimed polders (Southern and Eastern Flevoland). In 1950-90, the population decreased from about 250 pairs to less than 10 pairs.

Extinction worry for South Africa’s martial eagle

The population of Africa’s largest eagle species is in freefall in South Africa and may be edging towards extinction, according to a new UCT study. Martial eagle (Polemaetus bellicosus) sightings have dropped by as much as 60% since the late 1980s, the study published this week in the scientific journal Bird Conservation International found. The study also highlighted a decline in Martial eagle sightings within protected areas, including the Kruger National Park and the Kalahari Gemsbok National Park.

Seeadler sind vom Aussterben bedroht

Gelbe Kralle und ausgebreitete Schwingen: Seeadler (Haliaeetus albicilla) bieten den Besuchern des Feldberger Naturparks in Mecklenburg-Vorpommern einen atemberaubenden Anblick. Dort leben so viele wie nirgendwo sonst in Deutschland. Doch selbst hier drohen ihnen Gefahren. In freier Wildbahn leben in Deutschland derzeit rund 700 Adler-Brutpaare. Die meisten davon in Mecklenburg-Vorpommern.

Cambodia records 50 percent decline in vulture population in a decade

Cambodia's vultures are facing a high risk of extinction and have seen a 50 percent decline in number since 2003, conservationist groups said in a joint statement on Monday. "Only 121 of the birds were recorded in this year's national census, the lowest number on record since 2003," said the joint statement released by Wildlife Conservation Society (WCS), BirdLife International, World Wide Fund for Nature (WWF), and Angkor Center for Conservation of Biodiversity. "Recent reviews indicate that poisoning is the major threat to the vulture population in Cambodia," the statement said.

Perplexing decline in the American kestrel population is related to lack of prey

Not so long ago, on a drive down a rural road in Minnesota you’d often see an American kestrel (Falco sparverius) perched on a power line, watching for a dragonfly or small rodent to pass beneath. If you were really lucky, you’d spot this smallest member of the falcon family flapping its wings in its unusual hovering flight as it watched for prey. Such sights are becoming increasingly rare. These handsome little raptors, about the size of a mourning dove, are suffering a long-term and widespread population decline.

The iconic hen harrier is on the brink of extinction in the British Isles

The RSPB has flagged up concerns about the decline of hen harriers (Circus cyaneus) in Northern Ireland, with just 46 breeding pairs left in the region, a fall of 22 per cent since 2010 when there were 59. According to BirdWatch Ireland in 2015 there were an estimated 108-157 breeding pairs in the Republic, a decline of 8.7 per cent since a 2010 survey which recorded 128-172 pairs.

Insektensterben muss gestoppt werden

Es kann keinen Zweifel mehr geben, dass das „Insektensterben“ von großer Tragweite ist, für die Landwirtschaft, für die Ökosysteme und die Biodiversität im Land, und nicht zuletzt für alle, die sich einen Frühling ohne Schmetterlinge nicht vorstellen können. Fakt ist ein Rückgang von Insekten und insektenfressenden Wirbeltieren in Deutschland. Als Hauptgrund für dieses „Verschwinden“ wird jeweils der Einsatz von systemischen Insektiziden vermutet. Diese Stoffe wirken auf das Nervensystem und somit auf den Orientierungssinn und das Verhalten von Insekten und anderen Gliedertieren.