Beleid en debat

Fluitende vogeltjes zijn binnenkort verleden tijd

De lente is begonnen, en dan hoor je buiten steeds meer vogeltjes fluiten en zingen. Maar dat is voor toekomstige generaties misschien iets wat ze nooit meer zullen horen. In West-Europese landbouwgebieden gaat het aantal typische vogels, zoals de leeuwerik en de vink, drastisch achteruit. Dat stellen wetenschappers van het Centre National de la Recherche Scientifique (CNRS) en het Muséum National d’Histoire Naturelle in Frankrijk.

Catastrophe as France's bird population collapses due to pesticides

Bird populations across the French countryside have fallen by a third over the last fifteen years, researchers have said. Dozens of species have seen their numbers decline, in some cases by two-thirds, the scientists said in a pair of studies – one national in scope and the other covering a large agricultural region in central France.

Les oiseaux disparaissent des campagnes françaises à une « vitesse vertigineuse »

Ce déclin « catastrophique », d’un tiers en quinze ans, est largement dû aux pratiques agricoles, selon les études du CNRS et du Muséum d’histoire naturelle. Le printemps risque fort d’être silencieux. Le Muséum national d’histoire naturelle (MNHN) et le Centre national de la recherche scientifique (CNRS) publient, mardi 20 mars, les résultats principaux de deux réseaux de suivi des oiseaux sur le territoire français et évoquent un phénomène de « disparition massive », « proche de la catastrophe écologique ».

Die Fortsetzung des stummen Frühlings

Die Biologin Rachel Carson begann ihr berühmt gewordenes Buch einst mit einem Zukunftsmärchen. Sie schildert eine Stadt inmitten blühender Obstgärten. Entlang der Straßen entzücken Schneeballsträucher, hohe Farne und wilde Blumen das Auge. Die Vogelwelt ist artenreich, in den Bächen tummeln sich Fische. Doch dann rafft eine seltsame, schleichende Seuche Mensch und Tier dahin. Bäume und Blüten verkümmern. Die wenigen, noch übrig gebliebenen Vögel zittern und können nicht mehr singen. Es sei ein „stummer Frühling“, gewesen, schreibt sie in ihrem gleichnamigen, 1962 erschienenen Buch.

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.

South Africa’s seabirds are in serious decline

Over five years in the making, The State of South Africa’s Birds 2018 report used national survey and monitoring data to create a picture of the conservation status of the country’s birds and their habitats. Unfortunately, the study outlines several troubling tends. Overall, it found that 132 of the 856 species in the country were threatened or near-threatened in the country, with 13 Critically Endangered – just one step away from being extinct in South Africa.

Wells closed across Denmark as every tenth shows pesticide levels that are too high

Denmark is facing a historic pollution case as it has been revealed that every tenth test sample taken from almost 1,700 wells reveals a level of pesticide residue that is considered too high. As a result, a number of wells have been closed due to the concerns. In its report on the issue, the Geological Survey of Denmark and Greenland (GEUS) found unusually high concentrations and a broad geographic occurrence, establishing that the pesticide residue Desphenylchloridazone is prevalent in the groundwater – in open land and in drinking water wells.

Tropical aquatic ecosystems are much more sensitive to imidacloprid

The neonicotinoid insecticide imidacloprid is used in Bangladesh for a variety of crop protection purposes. Imidacloprid may contaminate aquatic ecosystems via spray drift, surface runoff and ground water leaching. The present study aimed at assessing the fate and effects of imidacloprid on structural (phytoplankton, zooplankton, macroinvertebrates and periphyton) and functional (organic matter decomposition) endpoints of freshwater, sub-tropical ecosystems in Bangladesh.