Showing posts with label danger. Show all posts
Showing posts with label danger. Show all posts

In #aboutthebees danger Jesus killer

Africanized Bees

Image result for the bee movie
Hello there, my name is Jesus and after forgiving everyone's sins and saving the entire human race, I decided to join iGEM to save the bees this time. Just kidding I couldn't even save my goldfish when I was 6... but I'll try my best to save the bees I promise. Anyways, so it was my turn to write a blog and I asked myself, "What is a good bee-related topic to write about?" It didn't take me too long to find the answer; I wanted to write the Barry Benson bee-ography. However, I realized it takes books to describe the life of such an almighty character, so I'll leave that to the professional writers that actually know what they're doing.

Instead, I will explain briefly what you need to know about a particular bee subspecies: the deadly and aggressive Africanized bee.

xxxxxxxxxxxxxx
Barry Benson PhD, exchanging highly cultural interests with followers.

The Africanized bee is one of the 29 recognized subspecies of the honey bee (Apis mellifera). It is a hybrid emerging from the cross-breeding of multiple European honey bees (A. mellifera ligustica and A. mellifera iberiensis) and the East African lowland honey bee. Thus, it is called the Africanized bee (A. mellifera scutellata), or more lovingly, the "killer" bee.

This subspecies appeared for the first time in 1956 as African bees were imported to Brazil in an attempt to cross-breed them and maximize the honey production. Unfortunately, a number of sneaky African queen bees escaped from specialized facilities a year later, just like a teenager escaping the house at midnight on a quest for a dopamine rush facilitated by alcohol. The bees didn't get the punishment of their lives though; instead, they settled all over the continent and causing the death of approximately 1,000 people in the process.


How dangerous are Killer Bees?

Even though Africanized bees can be a little intimidating at first glance, they are not as apocalyptic as Hollywood presents them. As a matter of fact, the venom released by Africanized bees is the same as the venom released by European bees.

The main difference between the two is, in fact, that Killer Bees would attack much faster and more aggressively; they will attack even if seemingly unprovoked. Even wearing a strong perfume and walking near a hive of Africanized bees would be enough to upset them. They become more defensive than Mexicans when they hear that TacoTime has the best tacos on Earth.



Statistics provide that Africanized bees attack in greater numbers compared to other subspecies. More precisely, it is 10 times more likely to get stung when attacked by these raging bugs. European bees would normally defend their hive by staying in it and attacking the intruder with only a few bees (10-20 bees), whereas Killer Bees would chase the intruder at high speeds for long distances with an army of about 100. The Africanized honey bee takes no chances; it will defend the hive in situations that would normally be ignored by European honey bees.


Recognizing Africanized Bees

Aside from the behavioural dissimilarities pointed out above, differentiating Africanized and European bees based on appearance is no easy task, especially when they're all flying all around you and you're trying not to panic. Even though cautious morphological tests are performed to determine exact physical differences between them, one notices a colour and size change when analyzed side-by-side; Africanized bees are larger and darker compared to other species.


Comparison between Africanized and European bees

A remarkable distinction are the locations where the two types of colonies establish their hives. European bees build their nests in large and broad areas such as tree hollows and house chimneys. On the counterpart, Killer Bees are not as picky selecting their spot, as they can settle in even more confined spaces like holes in the concrete or even hanging off a tree branch. This subspecies also has the capacity of invading a European hive and taking over it. They do this by settling the Africanized colony, including their queen bee, near a European hive. They proceed to exchange resources (e.g. food and pheromones) to ensure adoption of European worker bees, and lastly the European queen bee mysteriously disappears and just like that, the European hive becomes Killer Bee territory.


A Remarkable Attack

To give you an idea of the magnitude of an attack, I'll give you a couple of examples. In October 2014, a news source reported the case of a lawn care worker in Arizona who was killed by a swarm of 800,00 killer bees. The worker was not alone at the time; his colleagues were also stung approximately 100 times but they were lucky enough to survive. This atrocious attack was provoked when the workers turned on their lawn mowers in an attempt to treat a lawn, but such a bothering noise disturbed a big hive sitting in the attic and the rest is history.

A more recent event took place a couple of months ago. A man in southern Mexico carrying firewood encountered an angry swarm of Africanized bees. He was able to escape a first attack leaving his stuff behind and running as fast as he could. However, when coming back for his cargo, the man received a second attack where bees stung him presumably at least 500 times.



Ultimately, Africanized or not, it is best to treat all bees equally. When approached by any kind of bee, it is recommended not to panic in order to avoid any sudden movements that may cause the bee to feel threatened. If approached by a raging swarm, experts suggest you should run against the wind as fast as possible. This makes it more difficult for bees to keep up with you. Jumping into water may not be so effective all the time especially with killer bees, as they persevere when defending a hive and you have to get your head out of the water at some point to breathe.

Now that you are somewhat familiar with the most aggressive bee subspecies, I hope this article did not worsen your irrational bee fear. Thanks for your time, and I hope you never have to deal with a swam of Africanized bees in your life.


References

"Africanized Bees." Smithsonian Institution. Accessed July 03, 2019.

Alexander, Harriet. "Swam of 800,000 Bees Kill Man in Arizona." The Telegraph, October 09, 2014. Accessed July 2, 2019.


Ellis, Jamie, and Amanda Ellis. "Africanized Honey Bee - Apis mellifera scutellata." Africanized Honey Bee - Apis mellifera scutellata  Lepeletier. January 2008. Accessed July 03, 2019.


Ojar, Christina. "Africanized Honey Bee." Introduced Species Summary Project. March 1, 2002. Accessed July 03, 2019.


Vasquez, Herlindo. "Abejas Asesinas Provocan La Muerte a Senecto En Chetumal." Turquesa News, May 1, 2019. Accessed July 02, 2019.



Pictures

1

2


- Jesus H.

Read More

Share Tweet Pin It +1

0 Comments

In #savethebees Abbas Alberta danger wildfire

Smoked Out: What Effect Are Alberta's Wildfires Having On Bees?


With enough smoke in Edmonton to make our lungs burn and our eyes water, you might be wondering what effect the smoke is having on our bees. And if you weren't, well maybe you should be.

The UAlberta iGEM team is working on a Nosema biosensor to diagnose the infection in our precious little honey bees. While Nosema has us worrying 24/7 these days, for the past few days we were also a bit worried about the fire affecting our bees. 

So, I took it upon myself to take a deep dive into figuring out how bad it looks and how bad it actually might be.


Where are we at?

At the time of writing this post, the province of Alberta, which makes 40% of Canada's honey, has burnt through over 577,341.90 hectares of forests. Just to put that into perspective, that is about nine Edmontons. Wildfires are, by their very nature, very uncontrollable and a significant pollutant of our fresh Rockies' air. Blame them for ruining all the nice BBQ trips you had planned for this summer.


So how bad is it for our bees?



While our bees are one of the most resilient bugs around, they might not survive the nuclear apocalypse (like those cockroaches) but they sure can persevere through the testing times that Alberta is facing.

The main threat to our bees from the wildfire is the billowing smoke covering our clear blue skies. The smoke makes it difficult for our bees to fly safely, and it prevents our bees from following the scents of their foraging sites. The air pollutants, according to researchers in Penn State, interact with the plant hydrocarbons to break down the odours. Therefore, the bees struggle to find their foraging sites. The main air pollutant affecting the plant odours is ozone. The team at Penn State realized that the changes in air chemistry impacted the number of bees able to detect food sources in a given time frame. In an ozone-free environment, it took 10 minutes for 20 percent of the foraging bees to find a scent molecule named beta-caryophyllene. When ozone rose to only 20 parts per billion, it took 180 minutes for the same amount of bees to find the scent. The team fond similar results for the six different scent molecules. Basically, our bees are having a hard time sniffing around to make our honey in this smoke.

So what happens to our bees in the wildfire?

Well, most of the bees in our dense forests are filled with mining bees. They are a species of bees that live in tunnels underground Almost 70% of the world bee species live in underground nests. They are harmless to humans and do not produce any honey, so they do not get as much attention as other bees. However, they are still an essential part of our natural pollination infrastructure. A study jointly performed by Utah State and Central Texas Melittological Institute has determined that the heat stress these mining bees experience is survivable. 

The wood and twig-nesting bees, however, are not as successful with their zoning laws. Almost all of them get killed in the massive wildfires we are experiencing as they make their nests in flammable plant fibers. Although these bees are low in their quantity in our dense forests, they are also the main pollinators and the most active bees in these forests. Their loss would significantly slow down the recovery of our natural green space.



Should we panic?

We shouldn't panic about any of our problems if we are looking to find solutions. The good thing for us, however, is that the bees themselves are looking out for us. Oregon State University conducted an extensive 2-year study in the aftermath of the 2013 Douglas Complex fire in southern Oregon. Their bee trapping in high-severity sites showed a large increase in bee biodiversity and population compared to low-severity sites. This led them to conclude that the Earth's pollinators are also nature's phoenix and have not let us down even in our most testing times. The increase in bee population after the wildfires is part of the rebuilding phase, where the bees are pollinating the recovery of the forests and contributing to reclaiming the land.

While the wildfires can cause large-scale destruction and death, these bees give us hope. With the loss of their lives and their livelihood, they are back at it again - rebuilding their homes and lives. We should do our best to make sure our wildfires do not cause irrecoverable damage to these bees.

The small things we can do for our bees in the meantime, wild or otherwise, are:
If you see a bee s
  • If you see a bee struggling, offer it some clean water to refresh them. Also, wait for the haze to clear before releasing them.
  • Consider late Fall feeding for the bees as they might be digging into their winter stores.
  • The bees will do their part but we can do ours as well by planting a few trees and remembering the hard work our bees do every day.



- Abbas M.
References
  1. http://www.agr.gc.ca/eng/industry-markets-and-trade/canadian-agri-food-sector-intelligence/horticulture/horticulture-sector-reports/statistical-overview-of-the-canadian-honey-and-bee-industry-and-the-economic-contribution-of-honey-bee-pollination-2016/?id=1510864970935#a1.9
  2. https://wildfire.alberta.ca/reports/sitrep.html
  3. McFrederick, Q.S., Kathilankal, J.C., & Fuentes, J.D. (2008). Air pollution modifies floral scent trails. Atmospheric Environment, 42(10), 2336-2348.
  4. Della Sala, D.A., & Hanson, C.T. (2015). The ecological importance of mixed-severity fires: nature's phoenix. Elsevier.
  5. Cane, J.H., & Neff, J.L. (2011). Predicted fates of ground-nesting bees in soil heated by wildfire: Thermal tolerances of life stages and a survey of nesting depths. Biological Conservation, 144(11), 2631-2636.

Read More

Share Tweet Pin It +1

0 Comments