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Tag: "bumblebees" at biology news

Columbine flowers develop long nectar spurs in response to pollinators

...olution happened during shifts in pollinators from bumblebees to hummingbirds, and from hummingbirds to hawkmoths. In between these shifts, evolution of the columbines' nectar spurs came to a halt. Whittall and Hodges' work provides evidence that evolution may occur in a stop-and-go pattern--one in which ada...

Bumblebee house warming -- it takes a village

All bumblebees always aren't as busy as, well, a bee. It all dep...s. To achieve optimum conditions for their young, bumblebees rely on nest thermoregulation, actively raising or lowering temperature. Because they are well adap...

Bees solve complex colour puzzles

...ts from the UCL Institute of Ophthalmology trained bumblebees to find artificial flowers of a particular colour using a nectar reward. They then tested the bees' ability to find the same flowers in scenes that were simultaneously illuminated by four differently coloured lights - UV-yellow, blue, yellow and gree...

Bumblebees copy one another when contending with unfamiliar flowers

...siting. In the new study, the researchers offered bumblebees the choice between several artificial-flower clust...dual initiative. It's not yet possible to say why bumblebees visit flowers that other bees are foraging on, but it could be that bees learn that the presence of ...

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