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Spider's Web 1

  • Posted Aug. 23, 2010 by Sadhya Rippon Viewed 3448 times

  • This is a migrated legacy post. Image resolution is low. Info

Spiders initially started producing silk for reasons other than web-making. When spiders moved from the water to the land in the Early Devonian period, they started making silk to protect their bodies and their eggs. Spiders gradually started using silk for hunting purposes, first as guide lines and signal lines, then as ground or bush webs, and eventually as aerial webs.

Spiders produce silken thread using several paired spinneret glands located at the tip of their abdomen. Each gland produces a thread for a special purpose – for example a trailed safety line, sticky silk for trapping prey or fine silk for wrapping it. Spiders use different gland types to produce different silks, and some spiders are capable of producing up to 8 different silks during their lifetime.
Most spiders have three pairs of spinnerets, each having its own function – there are also spiders with just one pair and others with as many as four pairs.
Webs allow a spider to catch prey without having to expend energy by running it down. Thus it is an efficient method of gathering food. However, constructing the web is in itself an energetically costly process due to the large amount of protein required, in the form of silk. In addition, after a time the silk will lose its stickiness and thus become inefficient at capturing prey. It is not uncommon for spiders to eat their own web daily to recoup some of the energy used in spinning. The silk proteins are thus recycled.

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    There are 21 comments, add yours!

    • # Marsha

      I watched a spider build a web one time....an amazing experience! You've captured this little critter and its handiwork wonderfully!

      2010.08.22 Edited Reply Cancel

    • # Ricardo

      you've got here a cute [i]Araneus diadematus[/i] (european garden spider)
      they are one of my favorite spiders!
      they are so cute!:)

      2010.08.22 Edited Reply Cancel

    • # Milton Jacob

      oh yes, this is the way I took those shots mentioned in the next post :) Thanks for the information attached. I observed them how skillfully and artistically they make the web! incredible!!

      2010.08.22 Edited Reply Cancel

    • # Saku

      Wonderful set!!!!! Thank you sharing this shots and information.(I came to know they can produce many different silks..!!!)

      2010.08.21 Edited Reply Cancel

    • # Jothi

      Amazing photo when enlarged! And thanks for the crash course on spiders!

      2010.08.21 Edited Reply Cancel

    • # Lynda

      Very infromative and nice shots. I like the crocosmia in the bakground. I have some in my garden but it didn't do as well this year.

      2010.08.21 Edited Reply Cancel