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3464Re: [beemonitoring] Roadside Salt Affects Neural & Muscle Development in Monarchs

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  • Liz Day
    Jul 19, 2014
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      I wonder if this is what bumblebees are doing
      when they tongue patches of dry gravel or people's skin or mud. ??
      Liz
      Indianapolis

      >Research led by Gabriela de Brito Sanchez shows
      >that honey bees can
      ><http://cognition.ups-tlse.fr/annonces/alauneEn.html>sense
      >salt with their tarsomeres (which prompted
      >articles like,
      >"<http://www.livescience.com/43103-bees-taste-with-feet.html>Bees'
      >Salt-Sensing Feet Explain Swimming Pool
      >Mystery"). Yes, I think honey bees seek out
      >sodium. Has anyone seen comparable research for native bees?
      >
      >
      >On Wed, Jul 16, 2014 at 12:13 PM,
      ><mailto:lkuder@...>lkuder@...
      >[beemonitoring]
      ><<mailto:beemonitoring@yahoogroups.com>beemonitoring@yahoogroups.com> wrote:

      >[Attachment(s) from
      ><mailto:lkuder@...>lkuder@...
      >[beemonitoring] included below]
      >
      >This is an interesting topic that came up in a
      >local naturalist blog. It seems applicable to
      >bees, too, so thought it worth sharing here.
      >
      >The attached study focused on sodium uptake of
      >milkweed and oaks near roadsides and any
      >potential affects on butterflies. Interestingly
      >males and females responded differently to
      >increases of this historically limited
      >micronutrient. Males developed stronger flight
      >muscles, whereas females had increased brain
      >volume (larger eyes). Both monarchs and cabbage
      >whites had higher mortality rates though, but as
      >the authors point out this could be due to
      >factors other than salt overdose. Many good
      >questions were raised, such as, does this affect
      >foraging behaviour? morphology? etc.
      >
      >With roadsides being prime foraging sites for
      >many bees, might it affect them as well? I've
      >not seen much on the nutritional needs of native
      >bees. Do they seek out sodium like butterflies?
      >Even if they don't, how does it effect their
      >muscular and neural development? Will we end up
      >with males that have super flight abilities and
      >brilliant females with extraordinary sight?
      >
      >Best,
      >Lisa Kuder
      >
      >
      >
      >
      >
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