Navigation Links
Rewarding work for butterflies
Date:8/1/2012

Butterflies learn faster when a flower is rewarding than when it is not, and females have the edge over males when it comes to speed of learning with rewards. These are the findings of a new study, by Dr. Ikuo Kandori and Takafumi Yamaki from Kinki University in Japan. Their work, published online in Springer's journal Naturwissenschaften - The Science of Nature, is the first to investigate and compare the speed at which insects learn from both rewarding and non-rewarding experiences.

Learning is a fundamental mechanism for adjusting behavior to environmental change. In insects, there are three main types of learning: reward learning where insects develop a positive association between visual and/or olfactory cues and resources such as nectar; aversive learning where insects associate visual and/or olfactory cues with negative stimuli such as salt, shock and toxins; and non-reward learning where they associate the cues with the absence of rewards. To date, very few studies have explored non-reward learning in pollinator insects, including the butterfly Byasa alcinous.

In a series of four experiments, Kandori and Yamaki examined both the reward (nectar present) and non-reward (no nectar) learning abilities of the butterfly while foraging among artificial flowers of different colors. They also compared the reward and non-reward learning speeds.

They found that the butterfly learned to associate flower color, not only with the presence of nectar, but also with the absence of nectar. This demonstrates that the butterfly used both reward and non-reward learning while foraging on the flowers. In addition, the butterfly learned quicker via reward learning than it did via non-reward learning; and females learned faster than males.

These authors conclude: "Byasa alcinous can find rewarding flower species more efficiently via both reward and non-reward learning. Insects may initially visit a certain flower by innate preference. If this flower is rewarding, they quickly increase their focus on that flower species through reward learning. If the flower species is unrewarding and common, frequent visits to that flower species enhances non-reward learning to avoid that flower species. The butterfly can then identify new rewarding flower species with a reduced loss of energy and time, if it avoids foraging on such abundant, innately attractive but unrewarding flower species."


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

Related biology news :

1. Commonly used herbicides seen as threat to endangered butterflies
2. Study reveals how monarch butterflies recolonize northern breeding range
3. Monarch butterflies down again this year as decline continues, says Texas A&M expert
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:12/15/2016)...   WaferGen Bio-systems, Inc. (NASDAQ: ... today that on December 13, 2016, it received a ... Stock Market LLC which acknowledged that, as of December ... stock had been at $1.00 or greater for ten ... Listing Rule 5550(a)(2) of the Nasdaq Stock Market. ...
(Date:12/15/2016)... -- "Increase in mobile transactions is driving the growth ... is expected to grow from USD 4.03 billion in ... CAGR of 29.3% between 2016 and 2022. The market ... for smart devices, government initiatives, and increasing penetration of ... expected to grow at a high rate during the ...
(Date:12/7/2016)... -- According to a new market research report "Emotion Detection and ... Recognition), Service, Application Area, End User, And Region - Global Forecast to 2021", ... Billion in 2016 to USD 36.07 Billion by 2021, at a Compound Annual ... ... MarketsandMarkets Logo ...
Breaking Biology News(10 mins):
(Date:1/19/2017)... Jan. 19, 2017 /PRNewswire -- WuXi AppTec, a ... capability and technology platform, today announced that it ... focused preclinical drug discovery contract research organization (CRO). ... a wholly-owned subsidiary of WuXi, and will continue ... providing greater services. The acquisition will further strengthen ...
(Date:1/19/2017)... (PRWEB) , ... January 19, ... ... of advanced software solutions for pharmaceutical research and development (R&D), today announced ... in omic data analysis and interpretation for the rapidly evolving field of ...
(Date:1/19/2017)... and GAITHERSBURG, Md. ... MKT: PIP) and Altimmune, Inc., a privately-held immunotherapeutics ... of a definitive agreement for the merger of ... current investors include Novartis Venture Fund, HealthCap, Truffle ... be a fully-integrated and diversified immunotherapeutics company with ...
(Date:1/19/2017)... Jan. 19, 2017 AquaBounty Technologies, Inc. (AIM: ... productivity in aquaculture and a majority-owned subsidiary of Intrexon ... has completed the listing of its common shares on ... from Intrexon. "AquaBounty,s listing on NASDAQ represents ... our exposure to the U.S. markets as we advance ...
Breaking Biology Technology: