https://safirsoft.com Asian bees emit a coordinated distress signal when 'killing hornets' attack

According to a new article, when killer hornets approach the Asian hive, everyone can hear their screams.

According to a new article, Asian bees (Apis cerana) emit a unique alarm sound trying to inform members of the hive about a giant "kill hornets" attack. Published in the Royal Society of Open Science. For the first time, Wellesley College scientists have recorded a so-called "hunter's antitube" that serves as an invitation to cell members to initiate defensive maneuvers. You can hear an example in the (relatively disturbing) video above of a bee attacking a wasp.

Researchers at Wellesley College have identified a sound that Asian bees use to warn a hive of a "killing hornet" attack. "[The predator's] tubes have many features in common with many mammalian alert signals, so for mammals that hear it, it's instantly recognizable as a threat," said Heather Mattilla of Wellesley College, one of the authors of the article. He said the alarms shuddered when he first heard them. "It's a global experience."

As I wrote earlier, after November 2019, when beekeeper in Blaine, Washington, Ted McFaul was terrified, so-called killing wasps became infamous. Discover thousands of small, mutilated corpses lying on the ground - a bee colony has been brutally beheaded. The culprit: the Asian hornet Vespa mandarinia, native to Southeast Asia and parts of the Russian Far East. Somehow, these so-called "killer wasps" have made their way into the Pacific Northwest, where they now pose a formidable ecological threat to North American bee populations.

Read more "Attack of the Murder Hornets" is a nature document captured with scary/sci-fi lenses.

There are other species of giant Asian hornets. They are predatory predators and have several lower jaws that they use to separate their heads from prey and raise their delicious breasts (which include the muscles that give bees the ability to fly and move). Wasps can kill 20 bees in one minute, and one fist can kill 30,000 bees in 90 minutes. The hornet has a very poisonous and painful sting, and its tongue is long enough to pierce the traditional clothing of beekeeping. And while Asian bees built a defense against killer wasps, North American bees did not, as the McFaul colony slaughter clearly demonstrated. He made the call and in 2013 turned his attention to Asian bees. “They have evolved into a very frightening hunter sight,” he told Ars. Many of these species depend on insects such as bees to grow their colonies, so they are among the most ruthless of bee hunters. The deadliest of these are giant hornets (commonly known as "killer hornets") because they coordinate in groups to attack beehives. Advertising

“Humans are both hunters and prey, depending on the situation, so we have evolved under the shadows,” Matila said. “We can recognize their plight in the face of giant hornets.” Asian bees find forage to find animal feces and use it to cover the entrances to their hive - A process called "fecal detection", which acts as a chemical weapon to repel giant wasps. Wasps are unlikely to land on a hive or make their way into a hive at animal dung entrances.

How bees use animal faeces as a chemical weapon to protect hives from “Killing the hornets” While Matila and her team were in Vietnam studying dung, they found that the noise level in the hives increased dramatically as the giant hornets approached, so we started putting up the microphones. “We did this in the colonies so we could eavesdrop on them.” They also made tapes. An intense video of activity in local beehives.

Finally, they collected about 30,000 signals sent by the bees. 1,300 minutes and then translated those sounds into spectrometers for analysis. The bees produce complex arrays of sounds, which they either perceive as motions of molecules. air that You discover them by means of antennas or vibrations that they detect through certain organs. Therefore their legs are bee signals that "vibrate" and travel in the colonies as sounds and vibrations in the air. For example, there is the hissing sound, which is usually caused by all the bees lowering their bodies and moving their wings at the same time. It was almost in sync, Matila said. They constantly whistle, but most of the time when hornets are present, the exact purpose of hissing is not yet fully understood.

“This is unlikely. In the case of bees, it is mostly because they are roaring without predators.” "One idea that has been suggested (not from our side) is that rustling helps the colony to shut down temporarily because the bees stop after hearing a rustling sound," Matila said. It may help workers to understand other sounds in the nest if most of the bees stop moving for a second.

Asian bees emit a coordinated distress signal when 'killing hornets' attack
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