Scientists say that bees’ temperament is to drive away predators. But the unsuspecting people will find them aggressive, mean and terrifying.
Warmth of temperatures can put western bees at risk
Warmths can put western bees at risk of collapse. Researchers at Washington State University and the Department of Agriculture have pointed out that warm autumn and winter create major problems.
Fox – Seattle
Africanized honeybees, often referred to as “killer bees,” are now found in 13 states and are slowly spreading north, attacking people, livestock and pets along the way.
In the past three months alone, a man mowing his property has died after bee attacks, and after a tree trimmer disturbed the colony, three people were taken to hospital, hikers fled from an upset nest, and a woman and three horses flocked to bees scared by the lawnmower. The horse later “dead from thousands of stab wounds,” their owners said.
Scientists say that the bees’ temperament is a defensive mechanism to drive away predators – and note that bees die after stabbing, so they are sacrificing to protect their colonies. But to unsuspecting humans, killer bees certainly seem aggressive, mean and scary.
They are known to chase victims for up to a mile, even if they follow cars and trucks, and can stab normal beekeeping devices. In an attack on the Texas horse, owner Bailly Hillman said, “They didn’t give up.”
As parts of the west become warmer and dryer, it only gets worse as the bee’s preferred climate moves northward.
There is no national database of deaths related to bee stings, but a 2023 study by the Centers for Disease Control and Prevention found that on average, hornets, wasps and bees died in a year.
“In Texas, there are at least four major (Africanized bee) attacks that make news every year,” said Juliana Rangel, professor of Apiculture at Texas A&M University.
“Killer Bees” first made headlines when they first began appearing in the US in the 1990s, giving birth to an astounding news article and a surge in horror films such as fatal invasions, herds and savage bees.
Today, people in the South and Southwest are learning to live with them, but the danger remains, especially when highly defensive bees first appear in the area or people accidentally come across colonies.
Africanized honeybees do not survive in some regions with cold winters, do not like high levels of rain, and create natural cut-offs in areas where temperatures are falling, Wrangel said.
But in the coming decades, climate change means that bees could migrate to southeastern Oregon, the Western Plains and the South Appalachian Mountains, according to a 2014 study.
“By about 2050, if temperatures rise, we will see a northward movement, mainly in the western half of the country,” Wrangel said.
How dangerous are Africanized honeybees?
Africanized honeybees do not have more or more potent poisons than western honeybees. “The stab wound feels the same way,” Wrangel said.
What distinguishes them is the numbers that the colony sends to the attack. Each bee can only sting once before dying, but Africanized colonies of honeybees send out proportionally more bees in a defensive response, leading to more stings.
“If you’re working in one of the European bee colonies and you’re knocking with a hammer, you might send five or ten people to see what’s going on.
“If I did the same in an Africanized colony, I might win 50-100 individuals.
Africanized honeybees are far more sensitive to potential threats. “You can mow the grass a few houses away, and the vibration alone will pull them apart,” Rangel said.
There have been multiple reports of people cutting into colonies when trimming trees, cleaning brushes, or landscaping. In some cases, simply throw a rope over the branch and the tree trimmer will start an attack.
In toxicology, researchers talk about LD50. LD50 is the lethal dose required to kill 50% of people exposed to it, Rangel said. Bee stab wounds are calculated at approximately 9 stab wounds per weight. Therefore, if you acquire 1,350 stab wounds, half of your 150 pounds could die. It is unlikely for western honeybees, but it can occur in Africanized honeybees.
In 2022, an Ohio man suffered 20,000 bee stab wounds while cutting a tree branch. He survived, but only after being placed in a medically induced coma.
What states have Africanized bees?
At least 13 states report Africanized honeybees. The South has the highest number of South Florida.
“The majority of the bee population south of Tampa to Orlando to Daytona is decent in Africa, not many to the north,” Ellis said.
Africanized honeybees have also been reported in Alabama, Georgia, Louisiana and Mississippi, but do not seem to be very successful in their wet environments.
The bees have found natural homes in the southwest. This is because the landscape resembles the arid, semi-arid parts of the original African region. Wild colonies are common in Southern California, Nevada, Arizona, New Mexico, and especially Texas.
They were also seen in southwestern Arkansas in southern Utah and in about two-thirds of Oklahoma, Szalanski said.
Where did the killer bees get their killer instincts?
There are approximately 20,000 species of honeybees on Earth, of which 12 are honeybees. Of these, 11 were found in Asia, and only one in Europe, the Middle East and Africa. It’s called Apis MelliferaThe western honeybees, said Jamie Ellis, professor of honeybee studies at the University of Florida.
There are multiple variants of Apis Mellifera. One of these is the bees from the lowlands of East Africa (Apis mellifera scutellata), it was imported to Brazil in the 1950s.
In the region of East Africa’s lowland bees, they have many predators, so they evolved to be more defensive, Ellis said.
“They aren’t really aggressive and they’re not just looking for a fight,” he said. “They are just trying to convey that.
It can feel pretty scary when they follow you, Wrangel said.
She conducted a study of bees in Belize. There, people keep them far from hives and livestock, wearing protective beekeeping suits in trucks before they leave the hives.
“They can chase a mile in your car,” she said.
How did Africanized honeybees go to the US?
Africanized honeybees are the intersection between western honeybees from lowland honeybees in Europe and East Africa. They first occurred in 1956. Warwick Kerr, a well-known Brazilian geneticist, brought African honeybees to Brazil and hybridized in western Europe’s honeybees, but that didn’t work.
His plan was to breed bees suitable for the Brazilian climate, while retaining the kindness and high honey production properties of western honeybees.
He didn’t get a chance. A year later, 26 Africanized queens bees were accidentally released into nearby forests, where they thrived there, said Kirk Wischer, professor emeritus of entomology at the University of California, Riverside.
“The beekeeping industry in these areas is now much more important than before. They just have bees,” he said.
The hybrid between two subspecies called Africanized honeybees arrived in South Texas in 1990 and began moving northward.
“They spread far faster than people thought they could. They didn’t think they could get to Texas from Brazil for less than 40 years,” said Allen Zaranski, a professor of entomology at the University of Arkansas. “But they did.”
The two bee subspecies are impossible to distinguish without DNA analysis or careful observation of wing venous vein patterns. It is their actions that set them apart.
Most of the danger comes from wild nest boxes. Beekeepers carefully manage hives to keep out the Africanized Queen. Bees are extremely important to agriculture, so the movement of bees is regulated in many states. Most people have a bee inspector who oversees the process.
A total of 38 states currently regulate the movement of bees in the United States, requiring a permit or health certificate to do so. Four Statessa study published in 2022 shows that Arizona, Kansas, Kansas, North Dakota and Oregon do not have any restrictions on bee movement. Another eight states do not have regulations requiring a permit or health certificate for interstate movement of bees.
Not all Africanized bees are bad
Scientists studying bees emphasize that Africanized bees are more defensive, but have a lot of promise about the health of the whole bee, as they are more pest-resistant and disease-resistant, and are highly genetically diverse.
That’s important because bees play an important role in agriculture and the environment and have been affected by massive deaths over the past 20 years. In 2017, a third of the nation’s nest boxes died.
Even breeding and genetic manipulation can lead to better and milder bees, Ellis said.
“They have increased defensive behavior, but science may be able to maximize their positive traits and minimize their negative traits,” he said.
What if I encountered an Africanized Honey Bee Hive?
Because of their very defensive nature, if you encounter an offensive bee, the best response is to leave – fast.
“Earn away as quickly as possible. Don’t jump into the water. Don’t hit it with your arm. Get away as fast as possible,” Ellis said. “You might want to pull up your shirt around your nose and mouth to protect it from stabs that can cause swelling in your airways.”
Generally, the biggest threat is connecting and writing livestock and pets that cannot escape. It also involves using humans using heavy machinery that accidentally approaches the nest without hearing the anger of bees.
Once you have evacuated this area, seek expert help. “If you’re in the countryside, there’s a very good chance that these bees are Africanized,” Wrangel said.
She said no one would try to deal with the colony on his own “just to save a few dollars.” “You don’t want to ruin them.”
