Nets spiders, may be a natural structure of artificial animals most beautiful and intricate. But some types of spiders make it better. They built it a step further.
Several types of spider webs decorate even more organized with more complex patterns, as if to indicate that they are the best natural designer on earth. If you look at the pictures below does not look perfect but enough to make us ask why they make this extra configuration. The structure of spider webs extra scientific name stabilimentum or stabilimenta. The name is actually taken inadvertently, even arise because of an error that is when researchers suspect that this pattern aims to create stable cobwebs. This theory was later disproved. It seems that the function of this extra pattern can vary. Spiders build this pattern itself many times may be up to ten times.
Some of them make this pattern does not come from its own web but from the remnants of the former just about anything including their own eggs or whatever is near the net. This extra mesh pattern can be found among a number of species of spiders - but the best example is that of the type Argiope. This extra pattern, often almost mathematical precision with a 45-degree angle, it seems made for "memelarkan" their body thus making it unattractive predators. Sometimes this leads to a vertical pattern and spider younger may make it shaped like a disc. Answering the question why this extra pattern made seems to be simple. Some consider it provides extra protection because it makes the spider look bigger or as camouflage. Or instead they make it more visible than his own net that makes it more easily seen by the example of birds. More like "stop sign" for other animals.
Later mentioned that stabilimenta used to further attract prey spider. Often see insects at night gathered approaching the light? Extra pattern spider web is believed to reflect the ultraviolet rays that attract more prey to approach the net. Thermoregulation, this theory states that the pattern of this extra help spiders maintain optimum body temperature to survive in any weather. There is also mention that the spiders have aesthetic - as human beings who also have aesthetic - as also shown other animals to improve the surrounding environment to pursue something. It could be, encouragement reproduction is the reason why this extra pattern is made. When a female is ready to reproduce what better way to attract the males in addition to beautify their webs? This extra pattern at most is made of net itself apart from some kind of combination with any object nearby. On this kind of Nephila, the remains of prey, too attached to this pattern is more interesting with the intention of other prey again. Whatever the reason, it shows out there there are many natural wonders that we do not realize happen every day. Even done by small animals that we almost never notice.
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