Henk Tennekes
5057 resultaten
25 der 28 Fledermausarten der Schweiz sind heute bedroht und alle Arten geschützt
12 oktober 2011Weltweit sind rund 850 Fledermausarten bekannt. 25 der 28 Fledermausarten der Schweiz sind heute bedroht und alle Arten geschützt. Drei…Overige insecten
White-nose syndrome is threatening North American bats – Bat expert Rob Mies talks about the deadly fungus
12 oktober 2011“White-nose syndrome is causing such catastrophic mortality that it may be the worst wildlife catastrophe in the last hundred years,”…Vleermuizen
De landbouwcommissie van het Europees Parlement blokkeert verbod op neonicotinoiden
10 oktober 2011Wereldwijd is er een dramatische daling van het aantal bijen. De bij is onmisbaar voor de productie van ons voedsel,…
Detection of Pesticides in Active and Depopulated Beehives in Uruguay
9 oktober 2011The influence of insecticides commonly used for agricultural purposes on beehive depopulation in Uruguay was investigated. Honeycombs, bees, honey and…Bijen
Decreased Functional Diversity and Biological Pest Control in Conventional Compared to Organic Crop Fields
9 oktober 2011We assessed 30 triticale fields (15 organic vs. 15 conventional) and recorded vascular plants, pollinators, aphids and their predators. Organic…Bijen
Loss of Butterfly Species in Southern Florida
7 oktober 2011Reports over the last decade point to steep, widespread declines of butterflies in Europe and North America, and increasing evidence…Vlinders
Late-arriving barn swallows linked to population declines
7 oktober 2011Barn swallows (Hirundo rustica) are arriving later in the spring than they did 30–40 years ago at numerous sites in…Zwaluwen
Declines of prairie butterflies in the midwestern USA
7 oktober 2011Tallgrass prairie butterfly surveys in recent decades in four states in the USA indicate numerous declines of prairie-specialist butterflies including…Prairievogels
Reconstruction of historical pollination rates reveals linked declines of pollinators and plants
7 oktober 2011Widespread reports of low pollination rates suggest a recent anthropogenic decline in pollination that could threaten natural and agricultural ecosystems.…Bijen
A decline in pollinator dependent vegetable crop productivity in India indicates pollination limitation
7 oktober 2011Approximately 70% of the tropical crop species depend on pollinators for optimum yields. The economic value of such pollinated crops…Bijen
Jeffrey Gibbs: ‘The beekeepers in Australia are suffering losses from one end to the other’
6 oktober 2011The days of empty boxes being filled by swarms are over. Unless your bees are on a Eucalyptus honey flow…Bijen
’Controleer kind in Bollenstreek op IQ’
6 oktober 2011Onderzoek het IQ van schoolkinderen in de omgeving van Noordwijkerhout en in de kop van Noord-Holland. Vergelijk dat met dat…Mensen
De weidevogels verdwijnen uit Salland en Twente
6 oktober 2011Van de aantallen weidevogels in Overijssel uit 1994 is nog maar 55% over. Eerst waren het vooral de Grutto Limosa…Weidevogels
Cruiser 350 : le Conseil d’Etat donne raison aux apiculteurs
5 oktober 2011L'autorisation de mise sur le marché (AMM) du Cruiser 350 pour l'année 2010 a été annulée par le Conseil d'Etat…BijenFrankreich zieht Zulassung für Syngenta-Insektizid zurück
5 oktober 2011Weil das Insektizid Cruiser 350 als mögliche Ursache für das Bienensterben gilt, hat das oberste französische Verwaltungsgericht die Zulassung für…Bijen
Pesticides in Fresh Potatoes Sold in Farmers’ Markets in Alberta, Canada
4 oktober 2011Fresh potatoes (228 samples) from 34 farmers’ markets in Alberta were analyzed for 29 pesticides. Residues of three different pesticides…Mensen
90 percent of the 250,000 flowering species now in existence rely on pollinators
4 oktober 2011Pollinators are an essential part of a garden; so essential in fact, that 90 percent of the 250,000 flowering species…Bijen
Massive decline in Himalayan butterfly numbers
4 oktober 2011The lofty western Himalayas are being slowly robbed of their butterflies, with at least 50% of species showing a massive…Vlinders
The biodiversity balancing act: “Therefore never send to know for whom the bell tolls; it tolls for thee”
3 oktober 2011Britain’s 30 million hedgehogs have been reduced to 1.3 million in the last 50 years. Three quarters of butterfly species…Egels
Number of butterflies in Scotland hits all-time low
3 oktober 2011THE number of butterflies in Scotland hit an all-time low. Butterfly Conservation said the number of individual butterflies recorded was…Vlinders
List of critically endangered Australian birds swells
2 oktober 2011A new report on Australian birds has added four more species to the critically endangered list and found that a…Algemeen
Lower pollinator numbers herald crisis
1 oktober 2011New Delhi: Red Pierrot, Common Lime, Plain Tiger, Blue Pansy or the Common Castor may be unfamiliar names to most…Bijen
Joe Barry: ‘Pesticides also harm beneficial insects and the birds that feed on them’
30 september 2011Farmland birds are important indicators of the ecological health of our countryside and the recently published figures show how bad…Akkervogels
Deadly bird disease trichomonosis ‘spreads to Europe’
24 september 2011A disease that is killing greenfinches Carduelis chloris and chaffinches Fringilla coelebs in the UK has now spread to Europe,…Stadsvogels
