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:9/18/2014)... matter how many times it,s demonstrated, it,s still ... , But by using a signaling system ... their behavior to suit their population. In short, ... present, and act accordingly. , Once the population ... change from innocuous to pathogenic, or from unhelpful ...
(Date:9/18/2014)... have built the first smartphone app that automatically ... trends. In other words, your smartphone knows your ... -- and how that affects you. , The ... and loneliness to their academic performance, also may ... example, to monitor mental health, trigger intervention and ...
(Date:9/18/2014)... disciplines will be celebrated tonight at the third annual ... the health of premature infants and in paving the ... whose work was supported by the National Science Foundation, ... Energy Commission, will be honored at a ceremony at ... group of Members of Congress will be on hand ...
Breaking Biology News(10 mins):Researchers study vital 'on/off switches' that control when bacteria turn deadly 2Researchers study vital 'on/off switches' that control when bacteria turn deadly 3New Dartmouth smartphone app reveals users' mental health, performance, behavior 2New Dartmouth smartphone app reveals users' mental health, performance, behavior 3New Dartmouth smartphone app reveals users' mental health, performance, behavior 43rd annual Golden Goose award ceremony honors 8 researchers; Unusual work had big results 2
... Many baffled parents have wondered whether their teenagers would ... have never really quite understood just how an organism ... growth should cease. , Now University of Washington biologists ... fly, have discovered an organ that assesses the size ...
... biochemistry and metabolism of disease-causing organisms. The new ... than the 4 traditional Kingdoms. , Here ... causing mortality in AIDS patients and immunocompromised individuals, ... a different treatment regimen is needed. 2) Phytophtora, ...
... grows in the soil of potato fields can -- in ... powerful pesticide used for killing worms on potatoes, researchers have ... for the environment because University of North Carolina at Chapel ... weren't there, it would take 10,000 years for just half ...
Cached Biology News:Researchers find gland that tells fruit flies when to stop growing 2Researchers find gland that tells fruit flies when to stop growing 3New classification of eukaryotes has implications for AIDS treatment, agriculture and beyond 2New discovery: If it weren't for this enzyme, decomposing pesticide would take millennia 2New discovery: If it weren't for this enzyme, decomposing pesticide would take millennia 3
(Date:9/19/2014)... rather than electricity, to move data would consume ... a growing concern as chips, transistor counts rise. ... circuits light emitters, modulators, and detectors ... light source for optical chips is molybdenum disulfide ... as a single, atom-thick layer. Other experimental on-chip ...
(Date:9/19/2014)... 19, 2014 Biotech companies make ... emerging drug systems and advanced Laboratory Instrumentation. Companies in ... (NYSE: BDX ), Thermo Fisher Scientific Inc. ... RGDO ), Sangamo Biosciences Inc. (NASDAQ: ... Pressure BioSciences, Inc. (OTCQB: PBIO) ("PBI" or the ...
(Date:9/19/2014)... September 19, 2014 BioTech News ... patents and results of studies and trials.  Companies in ... Company (NYSE: LLY ), Gilead Sciences Inc. ... CELG ) and Arena Pharmaceuticals Inc. (NASDAQ: ARNA) ... developing prodrug therapeutics for the treatment of cancer, announced ...
(Date:9/19/2014)... , September 19, 2014 ... and Markets ( http://www.researchandmarkets.com/research/b2jxhs/micro_market ) has announced the addition ... Chromatography Columns"  report to their offering.  ... market is one of the fastest-growing segments in ... $1.2 billion in 2013, and expected to reach ...
Breaking Biology Technology:Toward optical chips 2Toward optical chips 3Medical Instrumentation Automation Advances for Biological Sample Preparation - Company Expects Q4 Revenue Impact from Newest Instrument Systems 2Medical Instrumentation Automation Advances for Biological Sample Preparation - Company Expects Q4 Revenue Impact from Newest Instrument Systems 3Medical Instrumentation Automation Advances for Biological Sample Preparation - Company Expects Q4 Revenue Impact from Newest Instrument Systems 4Medical Instrumentation Automation Advances for Biological Sample Preparation - Company Expects Q4 Revenue Impact from Newest Instrument Systems 5Medical Instrumentation Automation Advances for Biological Sample Preparation - Company Expects Q4 Revenue Impact from Newest Instrument Systems 6Medical Instrumentation Automation Advances for Biological Sample Preparation - Company Expects Q4 Revenue Impact from Newest Instrument Systems 7Biotech Companies Pushing Sector Higher With Recent Therapeutic Advancements & Patent Approvals - Company Wins Summary Judgment For Prodrug Patent 2Biotech Companies Pushing Sector Higher With Recent Therapeutic Advancements & Patent Approvals - Company Wins Summary Judgment For Prodrug Patent 3Biotech Companies Pushing Sector Higher With Recent Therapeutic Advancements & Patent Approvals - Company Wins Summary Judgment For Prodrug Patent 4Biotech Companies Pushing Sector Higher With Recent Therapeutic Advancements & Patent Approvals - Company Wins Summary Judgment For Prodrug Patent 5Biotech Companies Pushing Sector Higher With Recent Therapeutic Advancements & Patent Approvals - Company Wins Summary Judgment For Prodrug Patent 6Biotech Companies Pushing Sector Higher With Recent Therapeutic Advancements & Patent Approvals - Company Wins Summary Judgment For Prodrug Patent 7Micro Market Monitor : Global Pre-packed Chromatography Columns 2
, , Daniel G. Flowers and Lloyd A. Culp, Ph.D., , , , back to top...
... Inc., 2000 Alfred Nobel Drive,Hercules, CA 94547, ... Capillary sequencing technology has altered the field of genomics, ... process. This high-throughput , platform has become ... achievements as the completion of the Human Genome Project. , ...
... Richard Hastings, Jon Saunders and Alan McCarthy ... Liverpool, Liverpool, UK, , Introduction ... firmly focused on the genotypic analysis of naturally-occurring , ... techniques that enable amplification and sequencing of DNA extracted ...
Cached Biology Technology:Comparison of Commercial Dye Terminator Removal Kits, Rev A 2Comparison of Commercial Dye Terminator Removal Kits, Rev A 3Comparison of Commercial Dye Terminator Removal Kits, Rev A 4Comparison of Commercial Dye Terminator Removal Kits, Rev A 5Monitoring Bacterial Genetic Diversity in a Freshwater Lake Using TTGE and DNA Sequence Analysis 2Monitoring Bacterial Genetic Diversity in a Freshwater Lake Using TTGE and DNA Sequence Analysis 3Monitoring Bacterial Genetic Diversity in a Freshwater Lake Using TTGE and DNA Sequence Analysis 4
... tissue microarrays are derived from frozen embedded ... quality control procedures to ensure the highest ... assembled in one block, sectioned at a ... slides. Sections are large (3-5mm in diameter) ...
... derived from frozen embedded tissue blocks, which ... to ensure the highest quality. Tissues of ... block, sectioned at a thickness of 7microns ... large (3-5mm in diameter) in comparison to ...
... , CapSure HS and CapSure Macro LCM ... of populations of pure cells from tissue ... Microdissection., Ensure the Integrity of Microdissected ... CapSure LCM Caps have a patented transfer ...
... Precision-designed for Optimal Microdissection , ... enable the precise and rapid extraction of ... and cytology samples with Laser Capture Microdissection., ... for Downstream Molecular Analysis , All CapSure ...
Biology Products: