Thursday, September 30, 2010

Autumn Hive Inspection

September 30 - took a trip out to the hive today, as it's been two months since my last inspection. When we got there, the bees were coming and going from the hive in huge numbers. They know fall is here, and winter's going to come roaring around the corner, and there isn't too much time left for foraging. They're all working overtime to provision themselves for the long, cold months they'll spend cooped up inside with nothing to do. Winter must be a nerve-wracking time for them.



Back in July, There had been some comb built on the central frames in the upper super, but very little - it was more of a light coating of wax than proper comb. I had hoped that by now, the lower super would be full of honey and the bees would have started turning their attention to the uppers, where there were eight empty frames waiting to be filled as well, allowing them to double their storage capacity.



Well, I wasn't disappointed. Even before I removed the center upper frame, the thousands of little faces staring up at me was a testimony to the fact that they had indeed been putting in a lot of hours to get the upper super in shape:



And once I got the center upper frame out (burr comb attaching it to the frame below made it difficult again), I was relieved to find that their progress was actually better than I had expected. There was lots of nectar, pollen and capped brood. The queen is present and laying eggs in the upper chamber, and the workers are preparing it for more.



These girls make me proud. This is what I had hoped for. This means that the lower super is full -- or at least full enough that the bees have begun to focus their efforts on the upper frames -- and that the lower super is now considered by the bees to be almost exclusively "storage." The next time I inspect the hive (in about a month), this frame will more than likely be completely full, and the others around it may look like this one does now.

In case you are wondering why I usually emphasize the center frames in my inspection reports, it's because honeybees work upward from below and outward from the center. In a brand new, empty hive, such as this one was back in May, the bees have the entire space to work on. Being such an organized society, they maximize efficiency by concentrating on the bottom of the center frame, building comb upwards, simultaneously on both sides, to cover the frame. When both sides of the center frame have been filled, they start at the bottoms of the frames on either side of the center, and so on outward toward the walls of the wooden super. Once the downstairs is full of honey, they move upstairs and begin all over again with the bottom of the center frame. When I installed this colony into the empty hive, there was only one super (which is now the lower super), but even if there had been two supers, a lower and an upper, the bees still would have begun working from the bottom of the lower frames first. Therefore, I use the center frames as a yardstick to measure their progress. Once I saw that there was nectar, pollen and brood in the center upper frame, I knew that everything is going well and the surrounding frames will receive their attention soon, and that the lower frames are, for all intents and purposes, full of ripening honey.

If there had not been progress on the upper frames by now, it would have been an indication that something was seriously wrong, and I would have placed their chances of surviving the winter at somewhere around 20-25% without supplemental feeding with syrup. There simply would not have been enough honey to feed the colony, and they would starve once the stores were depleted. Now that they have begun filling the cells in the upper super, though, their chances of survival are increasing, and that's an encouraging thought. One of the rules in beekeeping is to allow your bees about 60 lbs. of honey to get them through the winter, and anything over that is yours to steal. A single frame, when full, holds about 6 pounds of honey. Because I'm using 8-frame equipment (8 frames in the lower and 8 frames in the upper super), the lower super alone, when full, can hold about 48 pounds of honey -- and that's assuming that all 8 frames are completely full. Now that my bees have begun filling the upper frames, they just might hit that 60-pound mark before the freeze. They still have a lot of work to do.

Thursday, September 23, 2010

Bee Informed, Part 5: Bees and Alcohol


The psychology department at Oklahoma State University has finally answered a question that has plagued mankind since the dawn of time: What happens when bees get drunk?

Here are the results of the experiment:



BACKGROUND:
The purpose of this experiment was to test the feasibility of creating an animal model of ethanol consumption using social insects. Honey bees were selected as the model social insect because much is known about their natural history, physiology, genetics, and behavior. They are also inexpensive to procure and maintain. Of special interest is their use of communication and social organization.

METHODS: Using both between- and within-experiment designs, studies were conducted with harnessed foragers to determine whether honey bees would consume ethanol mixed with sucrose (and, in some cases, water). Shuttle-box and running-wheel studies were conducted to examine the effect of ethanol on locomotion. The effect of ethanol on stinging behavior in harnessed foragers was investigated. The effect of ethanol on Pavlovian conditioning of proboscis extension was also investigated. Finally, in a self-administration study, foraging honey bees were trained to fly to an artificial flower containing ethanol.

RESULTS: (1) Harnessed honey bees readily consume 1%, 5%, 10%, and 20% ethanol solutions; (2) 95% ethanol will also be consumed as long as the antennae do not make contact with the solution; (3) with the exception of 95% ethanol, consumption as measured by contact time or amount consumed does not differ in animals that consume 1%, 5%, 10%, and 20% ethanol solutions; (4) exposure to a lesser (or greater) concentration of ethanol does not influence consumption of a greater (or lesser) concentration; (5) consumption of 10% and 20% ethanol solutions decreases locomotion when tested in both a shuttle-box and running-wheel situation; (6) consumption of 1%, 5%, 10%, and 20% ethanol does not influence stinging behavior in harnessed foragers; (7) ethanol solutions greater than 5% significantly impair Pavlovian conditioning of proboscis extension; and (8) free-flying honey bee foragers will readily drink from an artificial flower containing 5% ethanol.

CONCLUSIONS: The experiments on consumption, locomotion, and learning suggest that exposure to ethanol influences behavior of honey bees similar to that observed in experiments with analogous vertebrates. The honey bee model presents unique research opportunities regarding the influence of ethanol in the areas of language, social interaction, development, and learning. Although the behavioral results are interesting, similarity between the physiologic effects of ethanol on honey bees and vertebrates has not yet been determined.


Source: http://www.ncbi.nlm.nih.gov/pubmed/10968652


Of course, less scientific studies have been done as well:


(Found on YouTube.)

Thursday, September 2, 2010

Beehavior: The Drones

Among all the frenzied activity in a hive, there are some bees that just don't really do much at all. While the workers are busy cleaning house, foraging for nectar and pollen, guarding the hive, raising young, controlling temperature, collecting water, building comb and attending to the queen, the drones, the males in the colony, live in luxury, without a care in the world. They benefit from their sisters' tireless industry and contribute nothing to the colony on which their survival depends. They eat all they want, sleep when and where they want, and bully the smaller workers. Since a stinger is a modified ovipositor, honeybee drones are stingless, so they can defend neither themselves nor the honey they jealously love and which they did nothing to produce. It's a wonder that their presence is tolerated (though perhaps grudgingly) in such a goal-oriented society at all.




Drones are expected to do only one job in their lives: to mate with a virgin queen. When not availing themselves of the colony's stored food, they spend their lives lazily hanging out with the boys away from the hive in places called drone congregation areas. There they spend hours each day playing poker and shooting pool, and talking about how their women are always nagging them to take out the garbage (or the bee equivalent) as they wait for a queen to fly by. Yes, they've got it tough, those drones.
It's still unknown how drone congregation areas are designated, but they are agreed-upon locations that are known by both the drones and the queens from all the hives in the general vicinity. Because a queen's nuptial flight is fraught with danger, and she risks her life by leaving the safety of the hive to mate (usually only once in her life), it makes sense that there should be a specific place for her to go in order to mate quickly and return to the hive. Congregation areas are also convenient for providing a genetic variety and preventing inbreeding. These areas are usually found in the same place year after year, which raises some interesting questions. How do the drones, who have never been to the congregation area before, know where it is? For that matter, how do the queens know where to find them? What are the criteria for an acceptable location for a congregation? Geographical features such as hills and valleys or water sources? And for that matter, what if the criteria are not met some year? Is there an alternative system for designating one? For now, these are among the secrets that the bees see fit to keep from us.

When the weather is good and a virgin queen takes off from her hive on her nuptial flight, she will fly to a local drone congregation area, exuding pheromones and flashing her best come-hither looks. The drones will fly after her and chase her down, mating with her while in flight. The mating itself takes place at relatively high altitude, out of sight of observers on the ground, and so is rarely witnessed by beekeepers. Unlike many other species, there is no competition between drones for the opportunity to mate with the queen - no battles to the death or chasing each other off, with the victor earning the right to mate. There are two main reasons for this: firstly, since drones don't have stingers, they lack the necessary evolutionary weapons for such battles, and secondly, because the queen flies through the area and does not stop, any drones who engaged in such contests would simply find the queen gone after taking the time to vanquish their rivals. So the drones who can fly fast enough to catch up to the queen get to mate with her, thus achieving their purpose in life. But here's where cruel irony steps in: the act of mating itself is fatal to the drones. Upon the release of sperm, the drone's reproductive organ (the endophallus) tears off, along with part of his abdomen, and remains attached to the queen, forming a plug that prevents the loss of sperm after copulation. (This is known as eversion, and it's said that there is actually an audible pop when the endophallus breaks off.) The mortally-wounded drone then falls to the ground and dies soon after. This plug also provides visible evidence of her successful mating flight, to be removed by the workers, when she returns to the hive.



Maybe it's because of this agonizing sexual suicide that the workers in a colony tolerate the presence of the boorish drones who treat them so cavalierly. It's possible that the girls feel some measure of pity for them. If that is the case, though, that pity and tolerance doesn't last. When the weather becomes colder and the colony prepares for winter, the workers turn on their brothers and physically eject them from the hive. Since mating season is over and the drones have big appetites, they are forced out in order to conserve the winter stores. Some drones will attempt to re-enter the hive and are killed. Others are resigned to their fate and remain close to the entrance, where they succumb to the cold or to starvation. It's tragic, in a way: these are the drones that were not fast enough fliers to earn the right to mate with a queen and die, and it almost seems to be a punishment for their physical shortcomings and inability to pass on their genes. If their life's purpose is not served during the warm season, then their contract with the colony, their own family, is voided and they are replaced in the spring.

Here's one last bit of information about drones that I find worth mentioning. Because the female workers are produced from fertilized (diploid) eggs and the male drones from unfertilized (haploid) eggs, honeybee drones do not have fathers. Their nearest male relative is a grandfather on their mother's side. Interesting stuff, no?

See you again soon. Maybe you should give your brother a call. Or better yet, why not send him a t-shirt?

.

Saturday, August 21, 2010

It's National Honeybee Day!

That's right, folks. More specifically, National Honeybee Awareness Day -- the most important holiday of the year.
For beekeepers.

Anyway, I'll bet you didn't even know there was a national holiday for bees. For shame. Do you think mothers and Valentines are more important than our pollinating friends? Well, do ya? Punk?

If you haven't heard about it, that could be because the first National Honeybee Awareness Day was only last year. It was formally recognized by the Secretary of Agriculture in August of 2009 and is a day promoted to the advancement of beekeeping and the awareness of environmental concerns in general. Good stuff.

Want to know more? Here's the official National Honeybee Awareness Day website.

Now get out there and hug a bee.

Thursday, July 29, 2010

Second-Story Inspection, or "What Dem Bees Up To?"

It's been over a month, so it was time to brave the hot, hot Kansas summer and check on the girls again. And I was happy to get back in the field.



I had added a second super in June, and I wanted to see some progress on it.
It was not to be. Some of the more forward-thinking bees have begun to build some comb on the upper frames, but not much. Downstairs is still where the action is.



Instead, the bees were more intent on sealing the frames together by adding burr comb as a bridge between the upper and lower frames. Burr comb is, from the point of view of the ever-efficient bees, a remedy for the otherwise empty, usable space between the top and bottom supers. From the point of view of the beekeeper, it's just a nuisance. Because of the natural strength of dried and hardened wax, burr comb makes it difficult to slide an upper frame out when it's been glued to the frame beneath it. To put the strength of wax in perspective, I estimate that the center lower frame, where most of the brood and honey is being stored, currently weighs about six to eight pounds. When I tried to remove the center upper frame directly above it (which was empty of brood and honey and therefore weighed only a few ounces), the burr comb attaching the two frames caused the lower frame to pull out along with it. A thin strip of burr comb, only about half an inch thick, was able to lift eight pounds without breaking. And so begins an eternal dance between bee and beekeeper: they will continue to build burr comb and I will have to continue to cut it away. But I'm adding to my wax collection with each inspection. Perhaps I'll have a future as a chandler. I've made one ugly, lumpy, sad-looking little candle with my bees' wax so far, and while not much to look at, it did burn beautifully - and it smelled nice too.




Another delightful substance produced by bees, and also used for sealing cracks and spaces in the hive, is propolis, which is often affectionately referred to as "bee glue." Propolis is a viscous paste collected from tree buds, and is another of beekeeping's pleasant little annoyances. When soft, propolis is gooey, yellow and very sticky. If it gets on fibers such as clothes, it's there forever. When it hardens, propolis is similar to cement and becomes notoriously difficult to remove. My bees have decided to begin the process of sealing the inner cover to the upper super with propolis. From here on out, much of my inspections will be spent scraping at propolis and burr comb.



I had hoped to be able to collect some honey from my bees in the fall, but it looks like that's not going to be possible this year. Because the hive was brand new and was started so late in the season, the bees have had to work hard to get where they are now. They've got a very nice colony going, but the honey they collect is going to have to last them through the winter. There won't be any surplus for me to steal from them. The foraging season will only be a couple of months longer. Next year will be a different story, though. As long as the colony survives this winter on what they have, they will get a good head start on the spring, and there will be more honey than they, or I, could possibly ever use. And won't that be sweet?

See you next time.

Friday, June 25, 2010

Ummm... Never Mind?

So, yeah.
I have some good news, and some weird news:

The good news is that when I returned to the hive yesterday, I found a queen! Hooray!

The weird news? Well, it's the original queen. Oh... Kaaaay...

I was checking to see if the queen cells that I found last week were empty, and in doing so, she made her appearance as though nothing had happened. "Oh, hey, Jay. How's things? Just laying some eggs, you know. What's new?" Didn't she know that I had been worried sick?

So I may have been a bit hasty in my previous determination that she had died. I swear that I checked every bit of comb for her, and she wasn't there. I swear. It's possible that she was out of view on the bottom board, though that would have been unusual. Did she leave the hive and return? Also unusual. Either I have a crazy queen, or possibly, just possibly, I'm new at this.
I vote crazy queen.



Needless to say, I was both relieved and confused. If there had been a queen all along, why did the workers decide to construct emergency queen-rearing cells? Upon closer investigation, it seems likely that the queen cells may have actually been clusters of drone cells, stacked very close together. Because drones are larger than workers, cells containing drone brood are larger than those containing worker brood, and appear as lumps among the otherwise flat landscape of capped comb containing pupal workers. Queen cells are likewise larger than drone cells.
One of my two tentative theories is that my queen had planted drone eggs in three or four adjacent cells, and, once capped by the workers, they appeared to my novice eyes as one large capped cell, which, judging by its size, could only house a queen. This, compounded with the fact that I couldn't find the queen, led me to the conclusion that my queen had died and the workers were taking steps to replace her. If these were actually drone cells, I won't be making that mistake again.

However, there is another possibility, though more remote. The queen may have actually left the hive to mate a second time. This happens if her first mating flight was not as successful as she would have liked. Usually, queens will take only one nuptial flight, mating with several drones in succession, and returning to the hive with her spermatheca full. The spermatheca is the organ in which the queen stores sperm, releasing it to fertilize only those eggs that will produce workers. Unfertilized eggs produce drones, and the queen decides which eggs will be fertilized and which won't. She knows what she's doing. A full spermatheca from a single mating flight can last a lifetime of egg-laying, up to 5 years.
But if the amount of sperm stored in her spermatheca from her first nuptial flight was running low due to a small number of drones encountered, she may have taken a second flight to replenish it. This occurrence is uncommon, but it can happen, especially if the queen has been artificially inseminated by the apiary in which she was raised. (Yes, bees can be artificially inseminated, and it's done to ensure that the apiary is selling "mated" queens.)
If she did leave the hive to mate again, the workers, having discovered her absence, would have immediately begun to prepare her successor in the event that she didn't return. So I may have correctly identified queen cells after all. Upon her return, having successfully mated, the queen would have torn open the new queen cells and killed the young queens inside. During this latest inspection, I noticed that the "queen cells" that I saw last time were still capped, but much smaller. This could indicate that they were indeed queen cells, and that the queen returned and dispatched the pretenders within, and the workers then patched the comb where the queen had damaged it.

The first theory is probably more likely, but the second is not outside the realm of probability. I can't be certain what actually happened, but either way, it really doesn't matter.

So, all in all, a good visit. My queen, "Steve," is still present and doing her job.*
I also noted that many of the capped cells that I saw last week are now empty, meaning that the young bees within have since emerged. The colony's population is increasing.
Having removed the entrance reducer, the guard bees are now visible, and the foragers are coming and going much more freely. (The entrance reducer is a wooden dowel with a 1-inch space cut out of it, blocking most of the entrance and making it easier for small colonies to guard. Now that their numbers are growing, I decided that it was time to allow them unrestricted access to and from the hive, which will improve the foragers' productivity. The entrance reducer can clearly be seen in pictures from previous posts.)
The second brood chamber that I added to the top of the hive is mostly empty, though some workers have begun building wax on the frames within. The vast majority are still concentrating on the frames in the lower super, which is still not full.



My inspection visits will now be less frequent. I'm going to let my girls do their thing undisturbed for a while. My next visit will probably be in mid-July. By that time, I expect to see many more bees, comb drawn out in the upper super, much more pollen and brood, and lots of capped honey. I'll still keep a-bloggin', though, so don't change that channel.


* Steve theQueen! Get it?

Wednesday, June 16, 2010

The Queen is Dead. Long Live the Queen!



June 16, 2010: Ginny and I took a trip out to the hive today, and we made some interesting discoveries.

Firstly, the top feeder was empty, so it could finally be removed, forcing the bees to now forage for all their food. They had already been doing so, as indicated by the amount of pollen stored in the hive, but it's time to get this colony motivated. No more free rides.
Also, as I had predicted last week, there was comb built on 70% of the frames, so I added a second super with eight new frames on top of the first. The colony now has twice as much growing room, and will surely be glad about that.

Last week, I was unable to find any eggs. I had hoped that this week's inspection would reveal some new brood, and I was not disappointed in that regard. After six days, the larvae spin a cocoon around themselves and begin their pupal stage. At this time, their caretakers will build a wax cap over the cells containing the pupae, which will chew their way out through these caps twelve days later as mature adults. There was a good amount of capped brood cells, and their presence was an encouraging sight. I was also able to see some larvae as well, but not as many as I had hoped...

...and I couldn't find the queen.

This was not as encouraging. A productive, egg-laying queen is essential for the survival of the colony. Without her, this generation would be the last, and as the adults die off, the colony will not be able to support itself and there would be little hope for its future.

After removing each frame in turn, and with no queen in sight, I began to despair. My first hive, it seemed, would be a failure. I would watch my bees decrease in numbers over the next couple of months, until finally there would be a pitiful few left in the hive, exposing it to infestation from pests, such as mice and wax moths. A grim prospect indeed, and another setback for my colony, which has already suffered through the stresses of shipping and a late hiving.

However, while I was searching for the queen, I noticed something else: a small, peanut-shaped lump protruding from the comb on the center frame -- a queen cell. When a queen dies, the others in the colony usually notice her absence quickly (within 24 hours), and a general state of emergency is declared. In such circumstances, the workers will designate a new queen from among the larvae already present in the comb, and that's what exactly they did. One of their sisters will soon become their new queen, and she will likely emerge within the next week.

One question remains, however. How did the queen die? Did she succumb to disease or parasites? It's possible. Was she assassinated by the colony? There's a chance. Did I accidentally crush her in my fumbling as a novice beekeeper? Though I hate to admit the possibility, it can't be discounted. Or did she simply abandon the hive? Unlikely, but not unheard of. The answer, unfortunately, will remain a mystery, but I take no small amount of comfort in the fact that the bees know what to do. I'm learning from them with every visit to the hive.

While reviewing the pictures that Ginny took, I noticed that there are, in fact, at least two queen cells, not just one. The workers are hedging their bets. There are a couple of ways this drama can unfold, depending on how close the two (or more) potential new queens are in age. If one emerges first, she will announce her presence to the colony with a loud "piping" sound, which is also a battle cry, challenging her rivals. The other, immature queen(s) still in her cell will "quack" in reply, before she is stung to death within the cell. If they emerge from their cells simultaneously, however, this vocal argument will be followed by a fight to the death, with the survivor becoming the colony's new mother. She will be accepted by the rest of the colony unconditionally, by virtue of her victory, and because she is one of their own. She was elected to the position by her sisters, and raised especially for that purpose.

(Want to hear what that sounds like? Here's a recording of queens vocalizing to each other):



The first sound is a queen "piping" a challenge, and it is answered by another's "quacking."

In either case, the new virgin queen will take her nuptial flight as early as a week after her emergence, mating with up to 15 drones before returning to the hive. Afterward, she will continuously lay eggs for the remainder of her lifetime, picking up where the former queen left off.

I'm looking forward to further inspections. I'm hopeful that my next visit will show evidence of a new queen -- and with good timing and some luck, perhaps we can even record her emergence. Check back soon for updates.

Tuesday, June 15, 2010

Beehavior: The Jobs Bees Do


Honeybees are synonymous with tireless industry, and with good reason. The chores in a hive are many, and bees seem to learn these without being told what needs to be done, or even how to go about it.

Once a honeybee has been born and crawls out of her cell, she becomes a productive member of her community, instinctively knowing that she is expected to do her share of the work required of each for the benefit of the whole.

Here's a general overview of hive chores as determined by the age of the workers:


  • Cell cleaning: Honeybees are incredibly compulsive about sanitation. Empty cells are thoroughly cleaned before they are deemed worthy of receiving either food or brood. A productive hive's queen can lay up to 1,500 eggs a day, and since cells are reused, they must be cleaned before a new egg can be deposited. If, in the course of her egg laying activity, a queen finds a cell that has not been cleaned to her satisfaction, she will skip it and move to a cleaner one. Workers will clean and polish the cells until they are about 3 days old.
  • Feeding larvae: After hatching, all larvae are fed royal jelly for about three days. Royal jelly is created by the workers themselves - secreted from a gland in their heads - and is comprised primarily of water, simple sugars, proteins, and fatty acids, with trace amounts of antibiotic and antibacterial components. After these three days, the larvae will no longer be fed royal jelly; their diet is switched to pollen, nectar or diluted honey. Queen larvae, however, will be fed royal jelly exclusively until she pupates and emerges from her cell. Workers aged 3 to 7 days are responsible for feeding the older larvae, while those 7 to 14 days old will secrete royal jelly and feed the younger brood and developing queens, if any.
  • Comb building: The structure on which honeybees' entire lives are spent is a network of hexagonal wax cells. These cells are used to store food and to raise young: honey and pollen are stored in some of these cells, and eggs are laid in others. (While many animals will construct shelters made from materials that they find and collect, honeybees are the only ones known to build their homes from substances produced solely by their own bodies.) The wax is secreted from glands on the underside of workers' abdomens, then chewed until soft and pressed into place on the comb. Workers aged 7 to 14 days are at the peak of their wax production. Additionally, if a bee should die within the hive, its body is dragged out and dropped off the edge of the landing board. Diseases can spread rapidly, and bees understand that one instance of illness can mean the death of the entire colony. The undertaker duties are... undertaken... by workers in this same age group.
  • Defense: At around 14 days of age, honeybees begin to become curious about the world beyond the confines of the hive. They will take their first steps outside the entrance and onto the landing board, where they can observe their older sisters coming and going. They become the hive guards, taking position near the entrance to ensure that any foragers attempting to gain access are authorized to do so -- their scent must be recognizable. An invader, such as a predatory hornet or a bee from another hive with designs on their honey, will be dealt with quickly and lethally, though sometimes the guards will allow an unknown honeybee to enter, if she bribes them with a bit of nectar.
  • Foraging: At about 21 days old, workers have graduated from house duties to fieldwork. These new foragers will take their first orientation flights, guided by those with more experience. Once familiar with the location of the hive and its immediate surroundings, they will search for flowers to visit, and will collect pollen, primarily. Having gained some experience, the foragers will collect nectar. These older bees will forage until they die. It's not uncommon to notice bees with tattered wings within a colony. These are the oldest of the workers, and may have flown up to 500 miles during their foraging flights over the course of their lifetime.



Other tasks include honey production, temperature control, and water collection. These do not fall to workers of a specific age (although it can be assumed that water collection must by necessity be carried out by foragers who know their way to and from the hive), but are shared by all the bees in a colony. Honey production and temperature control are similar tasks: the water must be evaporated from stored nectar in order for it to be transformed into honey. This involves many bees rapidly beating their wings while standing in place, to fan the nectar and allow it to thicken and ripen. Likewise, when the temperature is hot, some bees will collect water and moisten the comb, and this same fanning will cool the interior of the hive through evaporative cooling.

There is some overlapping of the age ranges engaged in these various duties. If, as can happen under certain circumstances, the age groups are not in normal balance, bees of any age can do the work necessary, though with less efficiency. Field bees and those under 3 days old can feed a queen and raise brood, or secrete wax and build comb as need dictates, even though their glands may not be fully developed or have degenerated from lack of use. Similarly, very young bees can forage for pollen and nectar when there are no field bees of normal age to do this work.

Honeybees demonstrate remarkable versatility and adaptability in dealing with unpredictable situations, to which we can credit their success on earth during these past 130 million years.

Thursday, June 10, 2010

First Inspection

June 9, 2010 - It's been one week since Hiving Day, and it's time for the first inspection of the hive. It took a lot of effort to resist the temptation to check on the bees during the past week, but I had to give them some time to release their queen and start building the comb. If the bees are disturbed too soon after hiving, they may blame the queen and become regicidal, killing her and essentially dooming the entire colony. Although the queen doesn't actually "rule" the hive or give orders, she is, like all human politicians, monarchs or figureheads, at the mercy of the capricious mood of the populace, and can become a convenient scapegoat for events that are out of her control.

Once I got the hive opened, I was surprised at how industrious they had been in only a week: they had drawn out an impressive amount of wax and had built comb on about 30% of the available frame surface. I could see nectar and pollen in many of the cells, meaning that they have begun foraging in earnest. This, clearly, is a colony with its priorities in order.

The queen cage was empty, indicating her successful release. This was a good sign, but it was important that I locate her to be sure that she was still alive and present. It didn't take long to find her. She was right where she was supposed to be -- on the center frame, where the greatest amount of comb had been built. The next thing I looked for was the presence of eggs. A productive queen can lay up to 1,500 eggs a day, which when first deposited in the cells, are very tiny, smaller than the head of a pin. Unfortunately, I didn't see any eggs, though there may have been some. It may be too soon, or they may just have been too small for me to see. I'll return next week for another inspection, and will hopefully see some then. A productive queen is essential to the survival of a colony, as an adult honeybee lives only a few weeks, and the population of a colony must be maintained and increased.


The life cycle of a honeybee worker, from egg to adult, is 21 days -- 3 as an egg, 6 as a larva, and 12 as a pupa. If the queen has been laying, I should see some nice, fat larvae curled inside their brood cells next week.

A future visit will see the addition of a second super, with more empty frames, to the top of the hive, doubling the bees' living area and making room for much more comb, which means more food storage and more space for the queen's eggs. The guideline that I'm using is that a new super should be added when 70% of the frame surface has been drawn into comb. Since this is an 8-frame hive, that means 5 and a half frames. If my bees keep working at this rate (and I fully expect that they will), I may need to install the new super as early as next week. We shall see.

Until then, enjoy the pics and the video (as always, thanks to Ginny for the excellent photos and to Sanchez for the video):




On YouTube: First Inspection

.

Monday, June 7, 2010

Beequipment: The Smoker





One of the most frequently-asked questions about beekeeping is "what's the deal with that smoke thing?"

Well, simmer down, and I'll tell you. The smoker is an essential part of the beekeeper's toolbox. When working a hive, it's necessary to do as much as possible to make the process as easy for the bees as it is for the beekeeper. Bees don't much like it when someone decides to poke around in their business. They've got brood and a queen to protect, not to mention their home itself and the final product of their labor: all that sweet, sweet liquid gold. When a hive is opened, the bees will instantly attack en masse, resulting in a bad day for the intruder, and a lot of dead bees. But if the bees are distracted, the hive can be opened for inspection or honey removal much more safely.

For millions of years, bees have made their homes in trees. Before they became beekeepers, ancient humans were honey hunters, climbing trees or cliffsides with rickety rope ladders in order to raid a hive and collect the honey -- a practice that still exists today in some parts of the world, most notably in Nepal. It was discovered thousands of years ago that smoke will "calm" the bees, making them much less likely to become aggressive toward an invader.

Bees aren't stupid, and they know that they can't defend against fire. Instead, when they smell smoke, rather than becoming enraged at a possible threat, they quickly retreat into the hive and begin sucking up as much honey as they can in preparation to abandon the hive for another, more preferable location, i.e., one that isn't on fire. This contingency plan is deeply ingrained in their behavior. So in effect, the bees aren't "calm," they are actually engaged in a vigorous act of coordinated self-preservation in the face of a catastrophic emergency, and they become much too occupied with the relocation of their colony and their food stores to worry about who else might be in the area. Since the "emergency" passes quickly when a beekeeper smokes his hive, the bees do not actually leave, and the honey is replaced in the cells of the comb. (Another benefit of this behavior, as far as the beekeeper is concerned, is that when the bees gorge themselves on honey, whether in the case of a fire or when about to swarm, their abdomens become distended, making it difficult to flex the appropriate muscles required for stinging.)

Honeybees have a highly-developed sense of smell. A significant part of their communication relies on pheromones, and because their food derives exclusively from flowering plants, they use scents as landmarks and navigational tools. A healthy colony always posts guards at the entrance of their hive, to keep watch for intruders, whether it be a predator, a bee from another colony trying to rob them, or a human or animal that wants to get at their honey. If a threat is detected, guard bees will release a pheromone that incites the bees within the hive to attack. It's also believed that smoke will mask the scent of this pheromone, so that when the guards attempt to rally the colony in defense, their sisters are unable to smell it, and therefore oblivious to the intruder's presence (or, at the very least, to the release of the guards' pheromones).

For these reasons, the smoker is the single most important piece of equipment available to beekeepers, and they have been in use in some form or another for millennia, since at least ancient Egypt, and probably earlier. Not only does it protect the beekeeper from stings, but it also protects the bees by preventing a sudden decrease in their numbers by an act of mass suicide in their own defense.



Smokers are very simple and effective in their design: a cylindrical chamber contains the burning fuel and is topped by a hinged lid with a cone-shaped spout with a hole, to channel and direct the smoke for easy application. A pair of bellows that doubles as a handle blows puffs of air through the fuel and out the spout. The fuel itself can be anything that burns, but to avoid harming the bees, a cool smoke is far preferable to smoke which is hot. Pine needles, burlap, hemp twine or sisal are excellent combustibles that burn slowly and produce a thick, cool smoke.

I'll be inspecting the hive in a couple of days, to make sure the bees are hard at work building their new home. Check back soon to see the smoker in action.