The 12th in our new challenge layout catering for all aspects of nature for us nature lovers.
The challenge theme is at the end of the title.
For this challenge please add your images of ORB WEAVER SPIDERS. NO CRAB SPIDERS, NO JUMPING SPIDERS ETC
> The “typical” orb-weaver spiders (family Araneidae) are the most common group of builders of spiral wheel-shaped webs often found in gardens, fields and forests. Their common name is taken from the round shape of this typical web, and the taxon was formerly also referred to as the Orbiculariae.
> The Web
Generally, orb-weaving spiders are three-clawed builders of flat webs with sticky spiral capture silk. The building of a web is an engineering feat, begun when the spider floats a line on the wind to another surface. The spider secures the line and then drops another line from the center, making a “Y”. The rest of the scaffolding follows with many radii of non-sticky silk being constructed before a final spiral of sticky capture silk. The third claw is used to walk on the non-sticky part of the web. Characteristically, the prey insect that blunders into the sticky lines is stunned by a quick bite and then wrapped in silk. If the prey is a venomous insect, such as a wasp, wrapping may precede biting.
Many orb-weavers build a new web each day. Generally, towards evening, the spider will consume the old web, rest for approximately an hour, then spin a new web in the same general location. Thus, the webs of orb-weavers are generally free of the accumulation of detritus common to other species such as black widow spiders.
> Some orb-weavers do not build webs at all. Members of the genera Mastophora in the Americas, Cladomelea in Africa and Ordgarius in Australia produce sticky globules, which contain a pheromone analog. The globule is hung from a silken thread dangled by the spider from its front legs. The pheromone analog attracts male moths of only a few species. These get stuck on the globule and are reeled in to be eaten. Interestingly, both types of bolas spiders are highly camouflaged and difficult to locate.
Information courtesy of Wikipedia
Vote for your favourite!
1st place winners will have their photo used as the group Avatar for a period of time.
Then 1st, 2nd and 3rd will have their photo’s posted on the groups Feature Board.
1st place member will be become a featured member.
PLEASE ADD YOUR IMAGE TO THE GROUP, IMAGES THAT ARE NOT ADDED TO THE GROUP WILL RISK NOT BEING FEATURED IF YOU WIN