Bees are flying insects closely related to wasps and ants, and are known for their role in pollination and for producing honey and beeswax. Bees are a monophyletic lineage within the superfamily Apoidea, presently classified by the unranked taxon name Anthophila. There are nearly 20,000 known species of bees in seven to nine recognized families, though many are undescribed and the actual number is probably higher. They are found on every continent except Antarctica, in every habitat on the planet that contains insect-pollinated flowering plants. The smallest bee is Trigona minima, a stingless bee whose workers are about 2.1 mm (5/64") long. The best-known bee species is the European honey bee, which, as its name suggests, produces honey, as do a few other types of bee. Bees are the favorite meal of Merops apiaster, the bee-eater bird. Evolution Bees, like ants, are a specialized form of wasp. Eusocial and semisocial bees Honey bees defend against wasp attacks Bumblebees Stingless bees
Conserving Bees - International Bee Research AssociationConserving our bees by Robert Paxton The title of this article, reflects a growing awareness and interest in the demise of the world's wild bees, and the impact this may have on other wildlife, ecosystems (including agroecosystems) and the world's economy. The Red Data Book contains a high percentage of the bee species considered to be under threat. Many bee species appear threatened with extinction, with the general consensus of opinion falling on humans as the culprits, through their degradation and destruction of habitats. I see three major arguments for the conservation of wild bees, namely: Bees are of conservation value in their own right, as a component of the world's biodiversity.Bees are important components of natural ecosystems and play a big role in their functioning. Bees for bees' sake There is a need to know which species are rare, and which are changing in abundance. Bees and the wider wildlife Bees and agriculture References 1. 2. 3. 4. 5. 6. 7. 9. 10. 11. 12. 13.
Bees: pictures, information, classification and moreBee Photo by:Dorling Kindersley Bee, common name for a winged, flower-feeding insect with branched body hairs. CharacteristicsBees are dependent on pollen as a protein source and on flower nectar or oils as an energy source. Adult females collect pollen primarily to feed their larvae. Most bees have specialized branched or feathery body hairs that help in the collection of pollen. There are about 20,000 species of bees worldwide. Social Structure and Nesting HabitsBees have diverse nesting and social habits. Solitary BeesThe primitive bees, like their relatives the wasps, are solitary. More about Bees...
BumblebeeA bumblebee is any member of the bee genus Bombus, in the family Apidae. There are over 250 known species, existing primarily in the Northern Hemisphere although they also occur in South America. They have been introduced to New Zealand and the Australian state of Tasmania. Bumblebees are social insects that are characterised by black and yellow body hairs, often in bands. Like their relatives the honey bees, bumblebees feed on nectar and gather pollen to feed their young. Biology A bumblebee Bombus terrestris with pollen in its pile: the contrasting colours in the pile are a warning to predators. The blood or hemolymph, as in other arthropods, is carried in an open circulatory system. The body organs, "heart" (dorsal aorta), muscles, etc. are surrounded in a reservoir of blood, and pulsing contractions of the tube-like dorsal aorta create a weak circulatory force. In fertilised queens the ovaries are activated when the queen lays her egg. Habitat Nests Sting
Peut-on sauver les abeilles grâce à l’open-source ?Une ruche open-source. Capture d'écran « Cherche testeurs de ruches dans l’hémisphère sud », « les ruches urbaines », « le design de ruches »… Quelques-uns des sujets débattus sur le forum de opensourcebeehives.net. Si des internautes du monde entier collaborent sur ce site, ce n’est pas pour faire du miel maison. L’objectif principal est d’enrayer la mortalité des abeilles. Open Source Beehives from Open Tech Forever on Vimeo. En partenariat avec le fab lab de Barcelone, le projet Opensourcebeehive permet aussi le suivi des ruches. À Valldaura, on prépare le monde à l’autosuffisance Home made home : bientôt tous architectes ?Bee Genes May Drive Them To AdventureThat honeybee lazily probing a flower may actually be a stealth explorer, genetically destined to seek adventure from birth. ADVENTUROUS BEES Honeybees that scout out new food sources (such as this tagged bee above) have biochemical signatures in their brains that suggest scouts are more adventurous than hive mates who aren’t scouts. Courtesy of Zachary Huang Bees who consistently explore new environments for food have different genetic activity in their brains than their less-adventurous hive mates, scientists report in the March 9 Science. “This is an exciting paper that raises a lot of interesting questions,” says neurobiologist Alison Mercer of the University of Otago in New Zealand.
Arctic sea ice delusions strike the Mail on Sunday and Telegraph | Dana Nuccitelli | EnvironmentWhen it comes to climate science reporting, the Mail on Sunday and Telegraph are only reliable in the sense that you can rely on them to usually get the science wrong. This weekend's Arctic sea ice articles from David Rose of the Mail and Hayley Dixon at the Telegraph unfortunately fit that pattern. Both articles claimed that Arctic sea ice extent grew 60 percent in August 2013 as compared to August 2012. "Around 80% of the ~100 scientists at the Bjerknes [Arctic climate science] conference thought that there would be MORE Arctic sea-ice in 2013, compared to 2012." Regression toward the Mean The reason so many climate scientists predicted more ice this year than last is quite simple. The amount of Arctic sea ice left at the end of the annual melt season is mainly determined by two factors – natural variability (weather patterns and ocean cycles), and human-caused global warming. When Will the Arctic be Ice-Free? Continuing Global Warming Rose and Dixon Invent an IPCC 'Crisis Meeting'
La disparition des abeilles pourrait causer plus d’un million de morts par an…Le déclin global des pollinisateurs – essentiellement des abeilles et d’autres insectes – pourrait provoquer jusqu’à 1,4 million de morts supplémentaires par an, soit une augmentation de la mortalité mondiale de près de 3%, selon des chercheurs. Cette accroissement de mortalité résulterait de la combinaison d’une augmentation des carences en vitamine A et en folates (vitamine B9 ou acide folique), vitales pour les femmes enceintes et les enfants, et d’une incidence accrue des maladies non transmissibles comme les maladies cardiaques, les accidents vasculaires cérébraux (AVC) et certains cancers.Tels sont les phénomènes que provoqueraient, par le biais de modifications alimentaires, un effondrement de la population des pollinisateurs. Les carences en vitamine A et folates peuvent atteindre les yeux, ce qui peut entraîner la cécité, et provoquer la malformations du système nerveux. Source Belga Article complet sur 7/7.be
Beekeeping in citiesIt's about keeping bees in an urban setting. This may mean a small garden, roof terrace, or an allotment. Beekeeping doesn't need to be the reserve of the country folk and you don't need a huge amount of space to keep them. It is possible to have bees in the city and you know what... the honey is gorgeous because our urban honeybees have such a variety of plants and flowers to choose from. Each of the city gardens are as unique as their owners and the bees just love the variety. Skip to top Honeybees have been having a hard time. Bees seem to do well in an urban environment where there is a rich diversity of plants, flowers and trees in our gardens, railway sidings, roads and disused pieces of land. They are also a great way to reconnect urban dwellers with nature. We need more green spaces in our cities and becoming a beekeeper is part of a growing movement to green our cities. Although not scientifically proven, local honey is also said to cure hay fever. Bees are not like a dog.
Insect leg cogs a first in animal kingdomIf you are a young plant hopper, leaping one metre in a single bound, you need to push off with both hind legs in perfect unison or you might end up in a spin. Researchers have discovered that this synchrony is made possible by toothed gears that connect the two legs when the insects jump. Zoologists Malcolm Burrows and Gregory Sutton at the University of Cambridge, UK, say that this seems to be the first example in nature of rotary motion with toothed gears. They describe their findings today in Science1. The researchers' micrographs and videos of the jumping mechanism of the plant hopper Issus coleoptratus show that the joints that connect the hind legs to the body have rounded shapes and a series of tiny intermeshing teeth, each about 20 micrometres long. Malcolm Burrows The intermeshing gears in a scanning electron micrograph. Infant plant hoppers, known as nymphs, can take off in just 2 milliseconds, reaching take-off speeds of almost 4 metres a second (see video below).