Navigation Links
When following the leader can lead into the jaws of death
Date:5/12/2008

rs to make more accurate movement decisions, especially when it isnt possible to identify which individuals possess pertinent information? One plausible answer is that animals in groups only respond when they see a threshold number of fellow group members perform a particular behaviour.

Dr Ward added: Our experiments examined whether groups of fish could be led by replica individuals of the same species. We explored following behaviour both in a neutral situation and in a potentially dangerous situation where the subject fish had to be persuaded to swim past a model of a predatory fish. That the test fish regarded the model predator as a threat was confirmed by our control experiments, where fish showed a strong aversion to the predator model. Despite this, solitary test fish were prepared to follow a replica leader towards the predator model, suggesting that an isolated member of a social species will pay almost any cost to stick close to a friend. When test fish were in larger groups of 4 and of 8 fish, however, the picture was very different: a solitary replica leader was ignored. Instead, it required 2-3 replica leaders to influence these larger groups.

By adopting this quorum response, where subjects are prepared to follow a leader only when a threshold number of individuals behave in a particular way, animals can reduce the likelihood of spreading non-adaptive following behaviour. Whereas a single, maverick individual may act irrationally in a given situation, it is far less likely that two individuals will act so strangely.

The researchers say that in order to benefit fully from information transfer, animals - and this would include humans - may have to follow quorum rules to filter out maverick behaviour.

The researchers conclude: The reason why this study is important is that while quorum responses have been shown in invertebrates, like ants, bees and cockroaches, this is the first time (as far as we know) that it has b
'/>"/>

Contact: Paul J. B. Hart
44-011-625-23348
University of Leicester
Source:Eurekalert  

Page: 1 2 3

Related biology news :

1. MNI researchers locate neurological basis of depression following sports concussion
2. Researchers take first steps towards spinal cord reconstruction following injury
3. LSU professor studies army-ant-following birds
4. Ecologist finds dire devastation of snake species following floods of 93, 95
5. Government, Industry Leaders Come Together to Explore Technology Alternatives to Border Fence for Security, Surveillance
6. International workshop to address capacity building for rainforest leaders
7. 19 researchers selected as 2008 Leopold Leadership Fellows
8. PNNLs Richard Smith named to prestigious Scientific American 50 list of outstanding leaders
9. Too few women scientists achieving academic leadership positions
10. UCSD bioengineering grad student wins leadership award
11. Abel to receive posthumous Ocean and Coastal Leadership award
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
When following the leader can lead into the jaws of death
(Date:11/21/2014)... C-Labs LLC, a leading provider of remote ... today announced the appointment of John Traynor ... strategic advisor to the firm, Mr. Traynor will now ... based out of the C-Labs office in ... Muench , Chief Executive Officer. Photo - ...
(Date:11/18/2014)... --  News Highlights: , ... Partners Data Lake, an agile data and analytics ... allow researcher and clinicians to explore and develop ... of patients , The Partners Data Lake ... Partners system, breaking down physical barriers for collaboration ...
(Date:11/15/2014)... 13, 2014  While we may still be a few ... in "Star Trek" to gain instant access to all that ... with smartphones and tablets for monitoring and measuring our health ... This may seem a tad Orwellian to some, but a ... of these technological opportunities into their healthcare regime. ...
Breaking Biology News(10 mins):C-Labs Names Former Microsoft and Bsquare Executive as Chief Operating Officer 2Partners HealthCare and EMC Unite to Solve Health Care's Toughest Challenges Using Big Data 2Partners HealthCare and EMC Unite to Solve Health Care's Toughest Challenges Using Big Data 3Partners HealthCare and EMC Unite to Solve Health Care's Toughest Challenges Using Big Data 4Partners HealthCare and EMC Unite to Solve Health Care's Toughest Challenges Using Big Data 5Americans May Be Ready for a Brave New World of Healthcare 2Americans May Be Ready for a Brave New World of Healthcare 3Americans May Be Ready for a Brave New World of Healthcare 4
... as career killers, Achilles tendon injuries are among the most ... in post WWII tests, scientists have learned why: Like our ... is a tissue that does not repair itself. This discovery ... . "Tendon injury is a very common disease, which ...
... academic journal publisher, founded on the principles of affordability, innovation, ... launched by Jason Hoyt (formerly at Mendeley and Stanford University) ... been shaped from the premise that ,if society can set ... then why shouldn,t academics be given the opportunity to openly ...
... University researchers "cured" a strain of bacteria of its ... has implications for a long-standing public health crisis. ... managed to remove the ability of the Pseudomonas aeruginosa ... its access to food and oxygen. Over ...
Cached Biology News:Fallout from nuclear testing shows that the Achilles tendon can't heal itself 2PeerJ publishes its first articles 2Lack of energy an enemy to antibiotic-resistant microbes 2Lack of energy an enemy to antibiotic-resistant microbes 3
(Date:12/19/2014)... Dec. 19, 2014 Naurex Inc., a biopharmaceutical ... for diseases of the central nervous system, today announced ... executive officer, will present at the 33 rd ... take place at 3:00 p.m. PST on Tuesday, January ... San Francisco, Calif. ...
(Date:12/19/2014)... , Dec. 19, 2014 Decision Resources ... will grow at a 12 percent compound annual growth ... of the aging population and the increasing adoption of ... America will also spur demand for dental ... dental implant and periodontal treatments. Other key ...
(Date:12/19/2014)... Fayetteville, Arkansas (PRWEB) December 18, 2014 ... plans to locate its pilot production facility and ... further develop and produce innovative new materials that ... was chosen not only because of its historic, ... regional leaders’ efforts to attract leading edge, technology-based ...
(Date:12/19/2014)... December 18, 2014 Reports from ... United States suffer from one or more chronic health ... cancer. Medication can address some of these diseases, but ... that many sufferers face. While implanted nerve stimulation devices ... the whole nerve, which can induce side effects. ...
Breaking Biology Technology:Naurex to Present at 33rd Annual J.P. Morgan Healthcare Conference 2Latin American Dental Biomaterial Market Will Expand at a 12 Percent Annual Growth Rate Through 2023 2Latin American Dental Biomaterial Market Will Expand at a 12 Percent Annual Growth Rate Through 2023 3Technology Company TiFiber™ to Establish Production Facility in Fort Smith, Arkansas with Support from Local Investors 2Technology Company TiFiber™ to Establish Production Facility in Fort Smith, Arkansas with Support from Local Investors 3Technology Company TiFiber™ to Establish Production Facility in Fort Smith, Arkansas with Support from Local Investors 4Draper Wins GSK Funding for Smaller, Smarter Implantable Devices 2
... MISSISSAUGA, ON, Jan. 6 /PRNewswire-FirstCall/ - Vasogen Inc. ... update on corporate activities. Pursuant to a previously ... alternatives for the purpose of enhancing shareholder value. ... potential opportunities including the sale of the Company, ...
... 6 Accumetrics, Inc. has appointed Andrew Chisholm to ... brings the right mix of energy and expertise to ... next level in terms of our market penetration," says ... knowledge of the medical diagnostics industry and his relationships ...
... Corp. (OTC Bulletin Board: BSTC), a biopharmaceutical company developing ... it has received notification from The NASDAQ Stock Market ... listing on the NASDAQ Global Market. The Company,s common ... at market open under the symbol "BSTC" and will ...
Cached Biology Technology:Vasogen Provides Corporate Update 2Vasogen Provides Corporate Update 3Andrew Chisholm Appointed Vice President, Sales and Corporate Accounts at Accumetrics 2BioSpecifics Technologies Corp. Announces Listing on NASDAQ Global Market 2
... contains 4 deuterium atoms at the 9, 10, ... use as an internal standard for the quantification ... is produced by incubation of linoleic acid with ... to inhibit the adhesion of tumor cells to ...
...
...
Immunogen: Peptide corresponding to amino acid residues from the N-terminal region of human thyroid hormone receptor, alpha1/alpha2-isotype. Storage: -20 C, Avoid Freeze/Thaw Cycles...
Biology Products: