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In a study performed by Astrid Heiling et. al in 2005, yellow spiders were overwhelmingly found on yellow plants (93.7%, N=16), while white spiders were found on primarily white plants (69%), but also on yellow plants of the same species (31%, N=71). In order to test this pattern of distribution, the researchers conducted a choice experiment where it was found that spiders actively choose flowers, as opposed to just settling on what is available. They found that spider preference was due to reflectance properties of flowers. So why do yellow spiders overwhelming prefer yellow flowers, and white spiders have less of a preference? The researchers did further analysis of spider and flower coloration and by looking at reflectance and contrast found that while the white spider on white plant combination was visible by bees, the yellow on yellow pairing of the two species yielded a higher contrast. In fact, the yellow spider on a yellow plant combination yielded higher UV contrast than a yellow spider on a white flower! The combination of yellow spiders on yellow flowers and white spiders on either color of flowers are attractive to honeybees and correspond to the combinations that spiders choose most frequently. This shows that spiders are actively seeking to contrast highly with their background on the basis of perceived honeybee attraction (Heiling et. al, 2005).

Table 1. Overview of the color contrasts between white and yellow T. spectabilis and white and yellow C. frutescens , and the visibility of this contrast by honeybees. Modified from Heiling et. al, 2005.

Spider/flower combinations Color contrast
Yellow/yellow Detectable (very high)
Yellow/white Detectable (high)
White/yellow Detectable (very high)
White/white Detectable (high)

Beyond picking the right flower in comparison to their body to create a desired level of contrast, spiders can manipulate other variables, such as their position on a given flower, to attract their hymenopteran prey. In another experiment performed by Heiling et. al, researchers placed spiders on both the ligulate florets and the center of daisies to see how honeybees would respond. Expecting that spiders positioned naturally on the petals would deceive honeybees while those placed atypically in the center of the flowers would repel the prey, researchers found their predictions to be supported. Researchers hypothesized that the honeybees may have been less attractive to daisies with spiders over the center because it would make it more difficult for spiders to access their reward (i.e. nectar). Another hypothesis was that the spider-covered centers had inflorescences that did not visually resemble natural daisies, hence the rejection by honeybees. What was evident, however, is that deception by spiders and attractiveness to honeybees was greatest when spiders were placed on the petals, a behavior that spiders exhibit in nature. In this careful choice, spiders are able to position themselves to influence the behavior of their hymenopteran prey (Heiling et. al, 2006). This adds to a bevy of evidence that confirms that spiders act in a way that maximize their attractiveness to prey.

Questions & Answers

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
?
Kyle
yes I'm doing my masters in nanotechnology, we are being studying all these domains as well..
Adin
why?
Adin
what school?
Kyle
biomolecules are e building blocks of every organics and inorganic materials.
Joe
anyone know any internet site where one can find nanotechnology papers?
Damian Reply
research.net
kanaga
sciencedirect big data base
Ernesto
Introduction about quantum dots in nanotechnology
Praveena Reply
what does nano mean?
Anassong Reply
nano basically means 10^(-9). nanometer is a unit to measure length.
Bharti
do you think it's worthwhile in the long term to study the effects and possibilities of nanotechnology on viral treatment?
Damian Reply
absolutely yes
Daniel
how to know photocatalytic properties of tio2 nanoparticles...what to do now
Akash Reply
it is a goid question and i want to know the answer as well
Maciej
characteristics of micro business
Abigail
for teaching engĺish at school how nano technology help us
Anassong
Do somebody tell me a best nano engineering book for beginners?
s. Reply
there is no specific books for beginners but there is book called principle of nanotechnology
NANO
what is fullerene does it is used to make bukky balls
Devang Reply
are you nano engineer ?
s.
fullerene is a bucky ball aka Carbon 60 molecule. It was name by the architect Fuller. He design the geodesic dome. it resembles a soccer ball.
Tarell
what is the actual application of fullerenes nowadays?
Damian
That is a great question Damian. best way to answer that question is to Google it. there are hundreds of applications for buck minister fullerenes, from medical to aerospace. you can also find plenty of research papers that will give you great detail on the potential applications of fullerenes.
Tarell
what is the Synthesis, properties,and applications of carbon nano chemistry
Abhijith Reply
Mostly, they use nano carbon for electronics and for materials to be strengthened.
Virgil
is Bucky paper clear?
CYNTHIA
carbon nanotubes has various application in fuel cells membrane, current research on cancer drug,and in electronics MEMS and NEMS etc
NANO
so some one know about replacing silicon atom with phosphorous in semiconductors device?
s. Reply
Yeah, it is a pain to say the least. You basically have to heat the substarte up to around 1000 degrees celcius then pass phosphene gas over top of it, which is explosive and toxic by the way, under very low pressure.
Harper
Do you know which machine is used to that process?
s.
how to fabricate graphene ink ?
SUYASH Reply
for screen printed electrodes ?
SUYASH
What is lattice structure?
s. Reply
of graphene you mean?
Ebrahim
or in general
Ebrahim
in general
s.
Graphene has a hexagonal structure
tahir
On having this app for quite a bit time, Haven't realised there's a chat room in it.
Cied
what is biological synthesis of nanoparticles
Sanket Reply
what's the easiest and fastest way to the synthesize AgNP?
Damian Reply
China
Cied
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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