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The larvae of this storm in their days transform the spiders into zombies and then eat them.

Spider Anelosimus eximius. Picture: Philippe Fernandez-Fournier

The parasites that control the behavior of their own owners for their own good are scientists who have been documented for years, but now they have discovered an alarming relationship between the parasite boar larvae and the social spider.

Some organisms meet the brains of some carriers, usually for reproductive purposes. Mushrooms O. unilateralisfor example, they are controlling the carpenter's ants' brain. Parasite Diplostomum pseudospathaceum It hides in the eyes of fish and leads them to their death.

The team at the British Columbia University has now revealed another interesting parasitic relationship, and this is one of the most serious things we have seen, both because of its complexity and its vileness. A new study published today Ecological entomology, researcher Philippe Fernández-Fournier describes how parasitic wax species Zatypota used and abused by a social spider Anelosimus eximiususing it first as a vehicle and then forcing it to create an incubation camera. Ah, finally the spider is eaten.

Fernandes-Fournier met with this discovery in the Amazon region of Ecuador, studying several parasites living in A. eximius These spiders are known as social spiders because they live in large colonies, work together to capture the river, share the roles of the breed, and rarely encounter outside the shackles of their basket form.

Larva no Zatypota come to his master, spider Anelosimus eximius. Picture: Philippe Fernandez-Fournier

These spiders have highly anticipated behavior, so Fernandez-Fournier quickly realized that some of them were infected with parasitic larvae to see how they moved away from the colony. This observation was quite rare, but the scientist also noticed how the same spiders began to spill dense silk buds and foliage.

"It was very weird because they usually do not, so I started taking notes," Fernandez-Fournier said in a statement.

Moved with interest, he took the cocoon to the laboratory. When he opened it, he was surprised to see how he was developing inside him. Fernandes-Furnier and his team studied and discovered the interactions that were not yet documented in these two species.

Here's how it works: Women's Round Zatypota put an egg in the belly of a spider Anelosimus eximius. When the larvae is looking, it attracts itself to spinach and starts to feed it with blood. The larva gradually grows and starts to absorb most of the spider's body.

Over time, the spider slowly becomes a "zombie" and no longer stays normal. After larves, the spider leaves its colony and takes on the task of creating a coco-net. When this job is completed as a slave, the spider remains unchanged, allowing the larva to feed it to death. Saying, inside the cabbage, the lacer stops as a spider and is used as an incubator for the next pregnancy stage. After 9 to 11 days from the cocoon there is a completely mature rags. Then the cycle begins again, until the cause of death for the next algae's victim.

This strategy, say researchers, is unique, since parasitic fetuses were documented only by attacking lone spiders.

"Modification of this behavior is very serious," co-author Samantha Straus said in a statement. "The oak completely abducted the spider's brain and behavior and caused it to do something it would never do, for example, leaving its nest and creating a completely different structure. It is very dangerous for these small spiders."

To whom Strauss added: "We believe that Aspily draws attention to these social spiders, because it is a large and stable host of columns and food sources. We also discovered that the larger the spider colony, the more likely it will be what fox goals. "

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Researchers believe that walnuts are injected with a hormone that changes the spider's brain to hypnotize it. This hormone fools the spider, thinking it's in a different stage of life, or it acts as a signal that causes the spider to escape from its colony. At the moment, they do not have an exact answer on how the process of zombie opening a spider. This is just a hypothesis.

Fernandes-Furnier and Strauss now want to return to the Ecuadorian forests to learn more about these divine babies and their hosts. In particular, they would like to know if spiders always point to the same spider colonies and, if so, how to use them. [Ecological Entomology]

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