Navigation Links
An unprecedented role reversal: Ground beetle larvae lure amphibians and prey upon them
Date:9/21/2011

Usually it's the frog that catches the unsuspecting bug for a tasty snack, but in an unprecedented predator-prey role reversal, a certain group of ground beetle larvae are able to lure their amphibious would-be predators and consume them with almost 100% success. In a report published today in the online journal PLoS ONE, researchers begin to describe how these larvae are able to pull off this feat.

According to the researchers, larvae of the genus Epomis combine a sit-and-wait strategy with unique movements of their antennae and mouthparts to draw the attention of an amphibian (frogs and toads were used in the study). As the amphibian, thinking it has spotted potential prey, comes closer, the larva increases the intensity of these enticing motions. Then, when the amphibian attacks, the larva almost always manages to avoid the predator's tongue and uses its unique double-hooked mouthparts to attach itself to the amphibian's body and initiate feeding, which can include both sucking of bodily fluids and chewing body tissues, usually killing the much larger amphibian.

"Interestingly, adult beetles and larvae of species related to Epomis, are commonly preyed upon by amphibians," says the senior author Gil Wizen. "It seems that instead of serving as food items for amphibians, Epomis larvae have evolved to specifically take advantage of amphibians as a food source."

These findings extend the perspective of co-evolution in the arms race between predator and prey and suggest that counterattack defense behavior has evolved into predator-prey role reversal. However, the mechanism of the larva's swift counterattack against the speedy amphibian is still unknown.


'/>"/>
Contact: Jen Laloup
jlaloup@plos.org
415-624-1220
Public Library of Science
Source:Eurekalert

Page: 1

Related biology news :

1. CSHL scientists show in unprecedented detail how cortical nerve cells form synapses with neighbors
2. 20th-century warming in Lake Tanganyika is unprecedented
3. Twentieth-century warming in Lake Tanganyika is unprecedented
4. Brown geologists show unprecedented warming in Lake Tanganyika
5. Forest epidemic is unprecedented phenomenon, still getting worse
6. New tissue-hugging implant maps heart electrical activity in unprecedented detail
7. Behavior of single protein observed in unprecedented detail by Stanford chemists
8. Athletes, spectators faced unprecedented air pollution at 2008 Olympic Games
9. New pollution radar developed to provide unprecedented picture of urban smog
10. Arctic ground squirrels muscle up to hunker down
11. How an evolutionary playground brings plant genes together
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:4/26/2016)... April 27, 2016 Research ... Multi-modal Biometrics Market 2016-2020"  report to their offering.  ... The analysts forecast the global multimodal ... 15.49% during the period 2016-2020.  Multimodal ... sectors such as the healthcare, BFSI, transportation, automotive, ...
(Date:4/15/2016)... 2016  A new partnership announced today will ... decisions in a fraction of the time it ... high-value life insurance policies to consumers without requiring ... Force Diagnostics, rapid testing (A1C, Cotinine and HIV) ... pressure, weight, pulse, BMI, and activity data) available ...
(Date:4/14/2016)... 14, 2016 BioCatch ™, ... today announced the appointment of Eyal Goldwerger ... Goldwerger,s leadership appointment comes at a time ... the deployment of its platform at several of the ... which discerns unique cognitive and physiological factors, is a ...
Breaking Biology News(10 mins):
(Date:6/23/2016)... , June 23, 2016  Blueprint Bio, a company ... to the medical community, has closed its Series A ... Nunez . "We have received a commitment ... capital we need to meet our current goals," stated ... us the runway to complete validation on the current ...
(Date:6/23/2016)... , June 23, 2016 On ... session at 4,833.32, down 0.22%; the Dow Jones Industrial Average ... 500 closed at 2,085.45, down 0.17%. Stock-Callers.com has initiated coverage ... INFI ), Nektar Therapeutics (NASDAQ: NKTR ), Aralez ... Inc. (NASDAQ: BIND ). Learn more about these ...
(Date:6/23/2016)... (PRWEB) , ... June 23, 2016 , ... ... on quality, regulatory and technical consulting, provides a free webinar on ... on July 13, 2016 at 12pm CT at no charge. , Incomplete investigations ...
(Date:6/23/2016)... -- Amgen (NASDAQ: AMGN ) today announced a ... sciences incubator to accelerate the development of new therapies ... QB3@953 was created to help high-potential life science and ... stage organizations - access to laboratory infrastructure. ... "Amgen Golden Ticket" awards, providing each winner with one ...
Breaking Biology Technology: