Navigation Links
Jump in communication skills led to species explosion in electric fishes
Date:4/28/2011

s. Further analysis by collaborator Luke Harmon, PhD, assistant professor of biology at the University of Idaho, revealed that the number of species in clade A has been increasing three to five times faster than the number of species in other mormyrid lineages.

In other words, the fancier the fishs' communication kit, the more likely it was to come up with new electric discharges and new species that identified one another by those discharges.

Putting it to the test

It all worked out statistically and logically but was it what the fish actually experienced?

"After all," says Carlson, "this sensory world is totally foreign to us. I've worked with these fish a long time, so I can tell a few of the discharges apart by ear. But for the most part I need an oscilloscope to see the differences.

Can the Clade A fish tell the difference between discharges? To test them, Carlson ran behavioral playback experiments on fish caught in Gabon.

"A fish would be going pop, pop, pop and we'd pulse it. Depending on the fish, it would either discharge more rapidly, brrrrrrrrr, or stop discharging altogether.

"But if we repeated the stimulus again and again the fish would stop responding. Once it stopped responding, we hit it with a phase-shifted version of the same pulse. If the fish could tell the difference, the discharge rate or pause duration would increase. If it couldn't tell the difference, there would be no change.

The experiments showed that mormyrid fish in Clade A were able to distinguish among pulses, but other mormyrids (those with the EL brain) were not.

Did the evolution of a fancy signal-processing brain drive speciation in the Mormyridae? "It's always difficult with evolutionary studies to say that any one trait is the cause or the trigger for another," Carlson says. "But in this case we were able to show that the complex signal-processing brain evolved before a burst of speciation, that
'/>"/>

Contact: Diana Lutz
dlutz@wustl.edu
314-935-5272
Washington University in St. Louis
Source:Eurekalert  

Page: 1 2 3 4 5 6 7

Related biology news :

1. Scientists exploit ash tree pests chemical communication
2. Skywalker ensures optimal communication between neurons
3. Science reporter wins ASM Public Communications Award
4. Communication engages complex brain circuitry and processes
5. Brain cell communication: Why its so fast
6. Metcalf Institute wins NSF grant to help journalism and communication of oil spill research
7. Teaching communication and information literacy skills
8. Wall Street Communications Retained by iPharro Media
9. Wall Street Communications Retained by iPharro Media
10. Researchers demystifying complex cellular communications hubs found in sensory neurons
11. Dolphins use diplomacy in their communication
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Jump in communication skills led to species explosion in electric fishes 
(Date:4/13/2015)... -- higi, a leading cloud-based consumer engagement platform that provides ... their communities around health and wellness, announced today the ... ... convenient vehicle to receive validated health information from consumers. ... API will allow higi,s trusted partners, on a user ...
(Date:4/6/2015)... NXT-ID, Inc. (NASDAQ: NXTD ) ("NXT-ID" ... on the growing mobile commerce market, announced today ... MINIATURE, MULTI-PURPOSE ANTENNA METHOD AND SYSTEM FOR ... introduces a new revolutionary method and system to ... of miniature antenna modules for multiple purposes including ...
(Date:4/2/2015)... Fingerprint Cards (FPC) has received ... the distributor World Peace Industrial Group (WPI), part of ... the major part of the shipments will take place ... smartphone manufacturers in China . The ... communicated revenue guidance of + 1 000 MSEK for 2015.  ...
Breaking Biology News(10 mins):higi Launches Seamless Access to HIPAA-Compliant Health Outcomes and Activity Data 2higi Launches Seamless Access to HIPAA-Compliant Health Outcomes and Activity Data 3NXT-ID Patents Miniature, Low Power Wireless Magnetic Stripe 2NXT-ID Patents Miniature, Low Power Wireless Magnetic Stripe 3NXT-ID Patents Miniature, Low Power Wireless Magnetic Stripe 4Fingerprint Cards Receives Touch Fingerprint Sensor Order of SEK 110 Million 2
... becomes higher, the hair at the back of the man's ... greater or lesser hair loss. There are hardly any successful ... , It has long been suspected that hereditary factors are ... was unclear which genes are involved. The researchers in the ...
... team from Yale School of Medicine has glimpsed one ... work, performed in collaboration with English and French scientists, ... internalize cell surface receptors. , All cells traffic protein ... most important routes for cargo internalization is clathrin mediated ...
... brain cells less than half the size of a pencil eraser ... when it's time to go to sleep. The same cells also ... zones. , The human circadian clock, comprised of about 20,000 time-keeping ... about 30 years ago. Now, a researcher at the University of ...
Cached Biology News:Tendency to hair loss inherited from the mother 2Researchers develop assay that could be applied to drug screening 2The circadian clock: Understanding nature's timepiece 2
(Date:5/4/2015)... 4, 2015  Tikcro Technologies Ltd. (OTCQB: TIKRF) announced ... Form 20-F for the fiscal year ended December 31, ... The annual report on Form 20-F contains information regarding ... the area of cancer immune checkpoints. This project aims ... specificity and binding in targeting certain identified immune checkpoints. ...
(Date:5/4/2015)... Boston, MA (PRWEB) May 04, 2015 ... solutions for drug discovery and life science research, ... 5.0 , the latest version of its enterprise ... for biopharma R&D enables more efficient discovery and ... holistic approach to integrate and address protein optimization ...
(Date:5/4/2015)...   Tocagen Inc. , a clinical-stage immuno-oncology ... ongoing investigational studies were presented at the 11 th ... of Neurological Surgeons (AANS)/Congress of Neurological Surgeons (CNS) ... Washington, D.C. In addition, ... FDA and continues to advance towards initiation of ...
(Date:5/1/2015)... N.C. (PRWEB) May 01, 2015 ... Charlotte (UNC Charlotte) spin-out company, announced that Pinku Mukherjee, ... the UNC Board of Governors’ highest faculty honor. ... to humanity’s welfare , for her innovative research and ... Max Gardner Award represents a crowning moment in my ...
Breaking Biology Technology:Tikcro Technologies Files Annual Report on Form 20-F for the Year Ended December 31, 2014 2Genedata Biologics 5.0 – Antibody Engineering and Developability Assessment Advances 2Genedata Biologics 5.0 – Antibody Engineering and Developability Assessment Advances 3Genedata Biologics 5.0 – Antibody Engineering and Developability Assessment Advances 4Tocagen Presents Updated Interim Survival Data from Ongoing Clinical Studies at American Association of Neurological Surgeons (AANS)/Congress of Neurological Surgeons (CNS) Section on Tumors 2Tocagen Presents Updated Interim Survival Data from Ongoing Clinical Studies at American Association of Neurological Surgeons (AANS)/Congress of Neurological Surgeons (CNS) Section on Tumors 3Tocagen Presents Updated Interim Survival Data from Ongoing Clinical Studies at American Association of Neurological Surgeons (AANS)/Congress of Neurological Surgeons (CNS) Section on Tumors 4Tocagen Presents Updated Interim Survival Data from Ongoing Clinical Studies at American Association of Neurological Surgeons (AANS)/Congress of Neurological Surgeons (CNS) Section on Tumors 5OncoTAb CSO Awarded the University of North Carolina’s O. Max Gardner Award 2
... , Agencourts RNAClean ... method for purifying nucleic acid products generated in common enzymatic , ... The kit is formatted for microarray , gene ... automated formats. RNAClean eliminates the need for vacuum filtration or ...
... , , RNA later is a ... that stabilizes and protects cellular RNA in fresh , ... specifically for use with frozen tissues - see "<A , ... Grinding Frozen Tissue " for more information.) ...
... Gene arrays are solid ... collection of gene-specific nucleic acids have been placed at , ... array analysis, a nucleic acid-containing sample is labeled , ... targets , on the array. ...
Cached Biology Technology:RNAClean - RNA & cDNA in vitro Reaction Purification 2RNArticles: Keeping RNA Intact Prior to RNA Isolation - RNAlater 2RNArticles: Keeping RNA Intact Prior to RNA Isolation - RNAlater 3RNArticles: Keeping RNA Intact Prior to RNA Isolation - RNAlater 4RNArticles: Keeping RNA Intact Prior to RNA Isolation - RNAlater 5RNArticles: Keeping RNA Intact Prior to RNA Isolation - RNAlater 6RNArticles: Keeping RNA Intact Prior to RNA Isolation - RNAlater 7Array Analysis: The Basics 2Array Analysis: The Basics 3Array Analysis: The Basics 4Array Analysis: The Basics 5
Rabbit polyclonal to Peptide E ( Abpromise for all tested applications)....
Mouse monoclonal [6911] to E. coli K99 pilus ( Abpromise for all tested applications)....
...
...
Biology Products: