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Box 1: bite recruitment in polybia wasps

Colonies of the paper wasp Polybia are much smaller than most honeybee colonies. They also have a distinctly unique method of forager recruiting completely dissimilar to the honeybee waggle dance. The paper wasp’s approach to recruiting foragers to food sources is much more aggressive. As Sean O’Donnell shows in his study, the wasp recruiters bite one another, a signal that was used by scouts to recruit other wasps to begin foraging. He found that bitten wasps have an increased likelihood to initiate foraging. In order to test his hypothesis, he removed active foragers from nest sites and found that in relation to the control sites, foraging greatly decreased throughout the following days. This, he noted caused a marked decrease in food gathering and as he had predicted a drastic increase in the rate at which non-foraging worker wasps were bitten. Those that were bitten often began a foraging role soon after. It is important to note that just as the honeybees cope with inaccuracy of waggle dances by deferring to prior knowledge on food sources, some paper wasps initiated foraging even without being bitten (O’Donnell 2006).

Olfactory communication proves to be even more advanced in honeybees and also plays an important role in the recruitment process. In addition to scents gathered from the environment, Thom et al. in their experiments proved that the returning recruiters secrete as many as four complex pheromones while engaging in the waggle dance. They showed, by injecting one such chemical into a test population, that it increased the number of recruits that left the hive after the waggle-dance. As many as four distinct chemical signals, produced only by waggle-dancers during their runs have been shown to increase the number of recruits that begin foraging (Thom et al. 2007). Von Frisch’s experiments also showed that a nectar scent carried by a forager can be traced by a dance-observer to a particular flower, thereby increasing the accuracy of the recruitment process (Von Frisch 1974).

The variability of waggle-dance communication

The effectiveness of the waggle-dance is highly variable within individual honeybee colonies. Colonies with eggs fertilized by multiple males (multiple-patriline) have been shown to increase foraging rates, larger stores of food and higher individual health compared to single-patriline colonies (Mattila et al. 2008). That is to say, queens that breed with more than one male increase the productivity of their nest. It is strange that decreased relatedness within the brood would in fact increase productivity, but the reasons are clear. What Mattila and her colleagues discovered was that in a genetically diverse population, worker efficiency was improved by the genetic variability of communicational behaviors. They showed that multiple-patriline colonies had an increase in foraging rates of 27-78% and engaged in 36% percent more waggle dances daily than genetically uniform colonies (Matilla et al. 2008). Not only does genetic diversity increase resistance to diseases in the hive, but it also allows for varying degrees of specificity in waggle dances. Decreased relatedness creates an increased need for more highly specific communication, as well as an increased variability in the waggle-dance. This increased variety of dance, according to the Tuned Error Hypothesis, may also lead to a larger search area. This is not necessarily a negative outcome. It occurs also when workers witness only a limited number of incomplete waggle runs and perhaps could allow bees, even at a short range, to find unexplored food resources next to the one being indicated by the dancer. Since the dances that indicate more remote locations are more precise and last longer, the search area at both close and far distances should theoretically be comparable (Tanner et al. 2008).

Questions & Answers

where we get a research paper on Nano chemistry....?
Maira Reply
nanopartical of organic/inorganic / physical chemistry , pdf / thesis / review
what are the products of Nano chemistry?
Maira Reply
There are lots of products of nano chemistry... Like nano coatings.....carbon fiber.. And lots of others..
Even nanotechnology is pretty much all about chemistry... Its the chemistry on quantum or atomic level
no nanotechnology is also a part of physics and maths it requires angle formulas and some pressure regarding concepts
Preparation and Applications of Nanomaterial for Drug Delivery
Hafiz Reply
Application of nanotechnology in medicine
what is variations in raman spectra for nanomaterials
Jyoti Reply
ya I also want to know the raman spectra
I only see partial conversation and what's the question here!
Crow Reply
what about nanotechnology for water purification
RAW Reply
please someone correct me if I'm wrong but I think one can use nanoparticles, specially silver nanoparticles for water treatment.
yes that's correct
I think
Nasa has use it in the 60's, copper as water purification in the moon travel.
nanocopper obvius
what is the stm
Brian Reply
is there industrial application of fullrenes. What is the method to prepare fullrene on large scale.?
industrial application...? mmm I think on the medical side as drug carrier, but you should go deeper on your research, I may be wrong
How we are making nano material?
what is a peer
What is meant by 'nano scale'?
What is STMs full form?
scanning tunneling microscope
how nano science is used for hydrophobicity
Do u think that Graphene and Fullrene fiber can be used to make Air Plane body structure the lightest and strongest. Rafiq
what is differents between GO and RGO?
what is simplest way to understand the applications of nano robots used to detect the cancer affected cell of human body.? How this robot is carried to required site of body cell.? what will be the carrier material and how can be detected that correct delivery of drug is done Rafiq
analytical skills graphene is prepared to kill any type viruses .
Any one who tell me about Preparation and application of Nanomaterial for drug Delivery
what is Nano technology ?
Bob Reply
write examples of Nano molecule?
The nanotechnology is as new science, to scale nanometric
nanotechnology is the study, desing, synthesis, manipulation and application of materials and functional systems through control of matter at nanoscale
Is there any normative that regulates the use of silver nanoparticles?
Damian Reply
what king of growth are you checking .?
What fields keep nano created devices from performing or assimulating ? Magnetic fields ? Are do they assimilate ?
Stoney Reply
why we need to study biomolecules, molecular biology in nanotechnology?
Adin Reply
yes I'm doing my masters in nanotechnology, we are being studying all these domains as well..
what school?
biomolecules are e building blocks of every organics and inorganic materials.
how did you get the value of 2000N.What calculations are needed to arrive at it
Smarajit Reply
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Source:  OpenStax, Mockingbird tales: readings in animal behavior. OpenStax CNX. Jan 12, 2011 Download for free at http://cnx.org/content/col11211/1.5
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