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2396 resultaten
Fear for dragonflies prompts survey of British population
30 november 2009A NATIONWIDE survey of dragonflies is being launched amid concerns that a third of British species are under threat. The…Libellen
Environmental Fate of Imidacloprid
25 november 2009There are concerns regarding the long-term environmental fate and environmental persistence of the widely used insecticide imidacloprid. The 2005 sales…
Arthropods are relentlessly vanishing before our eyes
25 november 2009Western culture views insects and arachnids as pests and vermin that need to be controlled. They usually are not considered…Overige insecten
Pesticides are implicated in the decline of insects
25 november 2009With almost one million described species, insects eclipse all other forms of animal life on Earth, not only in sheer…Bijen
Skylark, Corn Bunting, Tree Sparrow and Northern Lapwing in sharp decline across Europe
25 november 2009The Wild Bird Indicator 2005 shows that on average over the last twenty-five years, farmland birds such as the Eurasian…Akkervogels
Common birds declining worldwide
25 november 2009Common birds are declining worldwide, providing evidence of a rapid deterioration in the global environment that is affecting all life…Algemeen
Farmland birds showed a significant decline across Europe between 1990 and 2000
25 november 2009Between 1990 and 2000, farmland birds showed a significant decline across Europe, a trend not shared by bird assemblages of…Akkervogels
Alarming Insect-eating Bird Declines in Canada
25 november 2009An article by Bird Studies Canada biologist Jon McCracken examines substantial population declines for ‘aerial insectivores ‘ – birds that…Overige insecten
Dramatic decline of an insectivorous passerine, the Whinchat
25 november 2009Insectivorous farmland passerines have declined steadily throughout most of western Europe over the past decades. The Whinchat Saxicola rubetra, an…Akkervogels
Songbirds on their way to extinction?
25 november 2009According to the latest update of "The Atlas of the Breeding Birds of Ontario" the list of songbird species in…Overige insecten
Recent Declines of Sacramento’s Purple Martins Worries Biologists
25 november 2009Sacramento’s remnant population of the Purple Martin Progne subis, a swallow recognized as a state Species of Special Concern, declined…Overige insecten
The explanation for farmland bird declines – Loss of insect food could be a major factor
25 november 2009Research into the declines of some species of farmland birds have shown that there is no single reason, but that…Akkervogels
Comparative Losses of British Butterflies, Birds, and Plants and the Global Extinction Crisis
25 november 2009There is growing concern about increased population, regional, and global extinctions of species. A key question is whether extinction rates…Algemeen
Increased pesticide use has been a key cause of Grey Partridge decline
25 november 2009Population declines in many farmland bird species have been documented during the last quarter of the 20th century in parts…AkkervogelsLinking agricultural practice to insect and bird populations: a historical study over three decades
25 november 2009There is continuing debate about the impact of agricultural practices on farmland wildlife. In particular, it has been postulated that…Akkervogels
Insect crash at root of House Sparrow decline
25 november 2009Britain's House Sparrow Passer domesticus population has declined by 68 percent since 1977. Though still relatively plentiful in small towns…Overige insectenRapid declines of British moths provide evidence of an insect biodiversity crisis
25 november 2009A fundamental problem in estimating biodiversity loss is that very little quantitative data are available for insects, which comprise more…Overige insecten40,000 ‘splatometers’ can’t be wrong: insect population is in decline
25 november 2009Nearly 40,000 conservation-minded drivers counted the bugs splattered on their vehicle number plates this summer, the Royal Society for the…Overige insectenSignificant decline in flying insect abundance in Hereford area of Southern Britain
25 november 2009For the first time, long-term changes in total aerial insect biomass have been estimated for a wide area of Southern…Overige insecten
The decline of the birds and the bees – Rachel Carson’s Silent Spring revisited
25 november 2009Monitoring data reveal significant changes in the number of meadow birds in the Netherlands. The overall yearly decline has nearly…Bijen
