Rain posture in yellow garden spider

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    I watched this yellow garden spider (Argiope aurantia) for a couple weeks. During several heavy rains, it would let go of its web with its front legs, but continue to hold with its hind legs. It was hanging perpendicular to the ground. On my blog, I have written more about this yellow garden spider's rain behavior.

    Allan Lance and Eeyore Photography added this photo to their favorites.

    1. qt flickr 26 months ago | reply

      It should allow the rain to wash down over the spider, don;t you think? Presenting the best posture for that.

    2. Pregilla 26 months ago | reply

      Kathy I think that is a good idea. I also was thinking it would make the body a smaller "target" for the rain, so fewer raindrops would hit. Some interesting comment on the behavior in this 1974 paper on spiders

      From the paper:

      From our observations on Argiope argentata in Panama, we know that some spiders may adopt special rainfall postures if they remain in their webs and do not seek shelter under nearby vegetation. Thus Argiope argentata hangs away from its sloping web so that the body is almost perpendicular and legs I and II, which are always directed anteriorly, are off the web. In the rainfall posture these two pairs of legs are held outstretched in line with the midlateral plane of the body and at a fairly acute angel to the long axis, i.e., they are held more anteriorly than in the normal resting attitude. This position could be interpreted as minimizing the cross-sectional area exposed to the rain - assuming that tropical rains fall more-or-less vertically - or that the spider in this position maximizes the flow of water off its body surface with the anterior appendages forming a sort of drip-tip. We have since seen this behavior in Nephilia clavipes, and Leucauge species

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