Navigation Links
Bees attracted to contrasting colors when looking for nectar
Date:2/21/2013

Flower colors that contrast with their background are more important to foraging bees than patterns of colored veins on pale flowers according to new research, by Heather Whitney from the University of Cambridge in the UK, and her colleagues. Their observation of how patterns of pigmentation on flower petals influence bumblebees' behavior suggests that color veins give clues to the location of the nectar. There is little to suggest, however, that bees have an innate preference for striped flowers. The work is published online in Springer's journal, Naturwissenschaften - The Science of Nature.

Very few flowers are a simple block of a single color. Patterns of pigmentation include color patterns within a petal or different colors on different petals. These patterns are thought to be important for pollination. Bees can identify, and are sometimes attracted to, patterned flowers over plain flowers. These patterns can increase the speed with which bees locate the nectar reward in a flower.

Venation patterns - or lines of color on flower petals - are common in Antirrhinum flowers, commonly known as snapdragons. The authors looked at the ways in which these color veins influence bumblebee foraging behavior. They exposed bees who had not seen flowers before to veined, ivory and red types of snapdragon flowers. They observed whether bees could distinguish between ivory and veined flowers and which type of flower they preferred, when they were looking for nectar.

From the bees' perspective, red flowers reflected little light while red veins on ivory flowers slightly changed the color of the flower. The ivory background, however, had the most effect, as it contrasted with the brown background more than the red flowers did. Bees successfully discriminated between ivory and veined flowers but showed no preference for one or the other. In contrast, both ivory and veined flowers were significantly more popular than red flowers.

The authors conclude: "Venation patterns might be prevalent in nature because they can be useful nectar guides, particularly when they also increase flower visibility. But it appears that the color contrast of a flower with its background has a greater influence on bee preference."


'/>"/>

Contact: Joan Robinson
joan.robinson@springer.com
49-622-148-78130
Springer
Source:Eurekalert

Related biology news :

1. Research reveals contrasting consequences of a warmer Earth
2. Looking into a flys eyes
3. Leaner Navy looking at future technology, fleet size and sequestration
4. Looking for the next American hyrax?
5. Better looking birds have more help at home with their chicks
6. Insect-eating bat outperforms nectar specialist as pollinator of cactus flowers
7. Got nectar? To hawkmoths, humidity is a cue
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:8/15/2017)... HAMPTON, Va. , Aug. 15 2017   ivWatch LLC ... effectiveness of intravenous (IV) therapy, today announced receipt of its ISO ... (QMS) developed by the International Organization for Standardization (ISO®). ... ivWatch Model 400 Continuous Monitoring device for ... "This ...
(Date:5/23/2017)... -- Hunova, the first robotic gym for the rehabilitation and functional motor sense ... Genoa, Italy . The first 30 robots will be available ... USA . The technology was developed and patented at the IIT ... Movendo Technology thanks to a 10 million euro investment from entrepreneur Sergio ... ...
(Date:4/19/2017)... April 19, 2017 The global ... landscape is marked by the presence of several large ... held by five major players - 3M Cogent, NEC ... accounted for nearly 61% of the global military biometric ... in the global military biometrics market boast global presence, ...
Breaking Biology News(10 mins):
(Date:10/11/2017)... ... October 11, 2017 , ... Singh ... orphan drug designation to SBT-100, its novel anti-STAT3 (Signal Transducer and Activator of ... SBT-100 is able to cross the cell membrane and bind intracellular STAT3 and ...
(Date:10/10/2017)... 2017 International research firm Parks Associates announced today ... the TMA 2017 Annual Meeting , October 11 in ... home security market and how smart safety and security products impact the ... Parks Associates: Smart Home Devices: ... "The residential security market has experienced ...
(Date:10/9/2017)... Jupiter, FL (PRWEB) , ... October 09, 2017 , ... ... episode, scheduled to broadcast first quarter 2018. American Farmer airs Tuesdays at 8:30aET on ... Agriculture industry is faced with the challenge of how to continue to feed a ...
(Date:10/7/2017)... ... October 06, 2017 , ... ... launched its ProxiMeta™ Hi-C metagenome deconvolution product, featuring the first commercially available ... bioinformatics software to perform Hi-C metagenome deconvolution using their own facilities, supplementing ...
Breaking Biology Technology: