Saturday , February 4 2023

The recently discovered wasps make social spiders zombies



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IMAGE: Zatypota is a stage of adult parasitic species.
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Credit: Philippe Fernandez-Fournier

It's like a sketch of horror movie in the Amazon world: in new Amazon spectacles, new spectacles become a "social" spider that turns zombies into a drone to stop the colony.

This is the first example of the British real-world discovery of researchers from the British Columbia, a new manipulative relationship between a new one Zatypota beast and social species Exclusive Anelosimus An recently published spider Ecological Entomology.

"The watchman's handling of spider behavior has been seen before, but not as complex," said Philippe Fernandez-Fournier, principal author of the research and former student of the Zoological UBC department. "Not only is the spider a beast aimed at the social species, but it will rarely leave the colony that it does."

Fernandez-Fournier was studying the different types of parasitic nests inhabited in Ecuador Exclusive Anelosimus Spiders, only 25 species of "social" spider 25 species. They live together in large colonies, they capture the capture of prey, share the duties of their parents, and rarely go in the basket.

Fernandez-Fournier learned that the spiders had been infected with a parasitic skin and had seen two or two paths in their colonies, when they swarmed with silk spinal density and hanging leaves. "It was very curious because they usually did not do it, so I started releasing," he said.

He intrigued, carefully taking some structures, called "cocoon web", to see those that emerge at the depths of returning to the lab.

To be astonished, it was a wasp.

"Worms look elegant and elegant," said Samantha Straus, a researcher at the Zoology Department and a PhD student. "But then they do the saddest thing."

Data collected in Ecuador using different 2012/2017 projects, researchers began to take care of the life cycle and the parasitic spider relationship.

What the identical parts found were fascinating and scary: after adult women, he placed an egg in a spider's belly, larva yolks and adorned with his hapless ornament. Then, he thinks, he feeds his spider's blood-stained haemolexe, growing more and more slowly on his body. Now, the "zombified" plum leaves the colony and collects larvae from the skin before patiently killing and conserving it. At the age of the spider, it enters the cape that protects the larva, creating it nine hundred and eleven days later.

In similar cases, parasitism is considered as a single species of spider, like orb roofers, and manipulate behaviors within normal repertoire.

"But this change in behavior is so difficult," said Straus. "Aspirak completely flattens the behavior and brain of the spider and never needs to do something like it will leave the nest and a totally different structure, which is very dangerous for small spiders."

They do not know how the wasps are made, but scientists believe that the hormones that think of the spider's life phase can lead to the extinction of colonies.

"We believe that children are being targeted to these social spiders because they provide a stable host of host colonies and food supplies," said Straus. "We also found that the spider colony is greater, the more likely it was that these wasps were directed."

Straus now puts a tattoo on a lizard, returns to Ecuador, whether sprays return to the new generations of spider colonies or not, and the advantageous evolution of advantage.

Meanwhile, wasps probably continue to be the worst nightmare of spiders.

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