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  1. #1
    Join Date
    Jan 2010
    Location
    Alachua County, FL, USA
    Posts
    7,001

    Default Honeybee colour vision can be tuned to relatively small spectral differences

    Honeybees (Apis mellifera) Learn Color Discriminations via Differential Conditioning Independent of Long Wavelength (Green) Photoreceptor Modulation
    We tested honeybee vision using light emitting diodes centered on 414 and 424 nm wavelengths, which limit activation to the short-wavelength-sensitive (‘UV’) and medium-wavelength-sensitive (‘blue’) photoreceptors. Honeybee colour vision can be tuned to relatively small spectral differences, independent of ‘green’ photoreceptor contrast and brightness cues.
    http://www.plosone.org/article/info%...l.pone.0048577
    americasbeekeeper.com
    beekeeper@americasbeekeeper.com

  2. #2
    Join Date
    Oct 2012
    Location
    Vancouver, B.C., Canada
    Posts
    39

    Default Re: Honeybee colour vision can be tuned to relatively small spectral differences

    It is obvious that all of the neonicotinoids have some sub lethal effects on bees (primarily nervous system) so why does the EPA constantly give conditional license to each of these pesticides and upon later review do nothing. Is it really as it appears to be a case of obvious corruption (i.e. the exchange of players between the U.S. government and Monsanto).

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