Navigate / search

Pollen collecting behavior of honey bees

The amount of pollen brought back to a hive seems to depend on two things: the presence of brood in the hive and a genetic predisposition to hoard pollen. The relationship between these two phenomena was recently studied by Jennifer Tsuruda and Robert Page, Jr.[1] and reported in the journal Behavioral Ecology & Sociobiology.

They selected two strains of bees for their study—those that hoarded large quantities of pollen and those that collected little pollen. Then they exposed part of each group to large amounts of brood.

They found that the bees that hoarded pollen brought in even more pollen when brood was present, but the low pollen collectors didn’t change their collection habits when exposed to the brood. The authors concluded that both factors play a role in pollen collection behavior, but the amount of influence can vary between the different strains of bees.

Other studies have shown that, as a general rule, pollen is collected by bees on an as-need basis. Colonies usually store only a few days-worth of pollen, yet they store vast quantities of nectar in the form of honey.

Pernal and Currie (2002)[2] found that colonies reacted to low pollen stores by simply sending out more foragers, not by increasing foraging rates. They also found that the bees responded to low quality pollen in the same way—by bringing in a greater total amount of pollen. In other words, they did not change the type of pollen collected when it was low quality, they just collected more of it.

Since pollen is collected externally (in pollen baskets or on the body), the bees are unable to discern the quality of pollen in the same way as they do with nectar, which they taste. This inability to distinguish pollen quality is one of the major reasons that bees must have a wide selection of floral resources in order to maintain good health.

Rusty


[1] Tsuruda, J. M. and R. Page, Jr. 2009. The effects of young brood on the foraging behavior of two strains of honey bees (Apis mellifera). Behavioral Ecology and Sociobiology 64: 161-167.

[2] Pernal, J. H. and R. W. Currie. 2001. The influence of pollen quality on foraging behavior in honeybees (Apis mellifera L.). Behavioral Ecology and Sociobiology 51: 53-68.

Comments

Phillip
Reply

The bees in one of our hives began to bring in pollen a couple weeks ago, but we’ve noticed that much of the pollen is collecting on the bottom board, going to waste.

Have you seen that before? Any idea what that could mean?

I suppose they could have run out of room for pollen, but I thought there would be plenty of empty comb available this early in the spring.

Rusty
Reply

Phillip,

I don’t know why that is happening. They should have plenty of places to store it, and this time of year especially they have a need for it. I think I would try to collect it for later. Do you have, or can you make, a pollen trap?

Phillip
Reply

I don’t have a pollen trap, but I can probably make one.

It’s possible what I’m seeing isn’t pollen, but it looks like pollen to me. We’ll see what’s going on tomorrow or the next day. It should be warm enough then to do our first inspections.

Leave a comment

name*

email* (not published)

website

This site uses Akismet to reduce spam. Learn how your comment data is processed.