Navigation Links
The faster they come
Date:6/27/2009

Being the neighbourhood bully has its obvious advantages, but it becomes useless if your authority is continuously being challenged. In many animal species, however, stable hierarchies are routinely formed in which some individuals seem to slip naturally into their dominant role whereas others resign themselves to play the part of lowly subordinates. But why do the latter embrace this fate so readily instead of putting up a fight? A research team from the University of Sydney is trying to find the answer to this question by studying the interactions between male mosquitofish to see if their behavioural strategy can be traced down to their physical skills.

When the speed of escape in response to an attack was measured, the researchers found that subordinate fish were significantly faster than the dominant ones. "This is particularly interesting because we predicted the opposite: that dominant fish were the ones that would prove to be more athletic" explains Dr. Frank Seebacher, who led the research team. "Our data indicate either that there may be a training effect because subordinate fish have to escape quickly and often, or that slower fish become more aggressive because they cannot manoeuvre quickly." The researchers also analysed whether damage to the tail and fins may affect the social position of a given individual, and found that, indeed, aggressive behaviours tend to decline as fin damage sustained in fights accumulates. In other words: if a male has to fight too often to maintain his dominant status, he will probably end up losing it in the end. These results will be presented by Elektra Sinclair at the Society of Experimental Biology Annual Meeting in Glasgow on Sunday 28th June 2009.

The scientists are currently trying to better characterize the physiological differences between the two groups to find out whether they are hereditary or acquired. They are also planning to address this question by conducting breeding studies designed to
'/>"/>

Contact: Cristian C. A. Bodo
Cristian.Bodo@kcl.ac.uk
44-794-258-7047
Society for Experimental Biology
Source:Eurekalert

Page: 1 2

Related biology news :

1. New wheat disease could spread faster than expected
2. Shellfish and inkjet printers may hold key to faster healing from surgeries
3. New open-source software permits faster desktop computer simulations of molecular motion
4. Ocean growing more acidic faster than once thought
5. New type of vaccines deliver stronger and faster immune response
6. Emissions rising faster this decade than last
7. TGen investigators devise faster, cheaper way of analyzing the human genome
8. Big-brained animals evolve faster
9. Wasps and bumble bees heat up, fly faster with protein-rich food
10. Establishing faster-growing, durable football fields
11. New 3-D test method for biomaterials flat out faster
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:12/15/2014)... , Dec. 12, 2014 Research and Markets ... "Global Facial Recognition Market 2015-2019" report to ... Facial recognition is a technology used for ... overall facial feature of a person such as nose, ...
(Date:12/11/2014)... , Dec. 10, 2014  That blood pressure plays a role ... Hypertension – the medical term for high blood pressure – ... and the inflatable cuff that,s used in measuring blood pressure ... there,s nothing new about hypertension, its triggers and its effects. ...
(Date:12/10/2014)... , Dec. 9, 2014  Valencell, a leader in ... seeing a staggering demand from its licensees for highly ... revealed, is not solely coming from fitness and health ... "A wearable is only as useful as ...
Breaking Biology News(10 mins):Global Facial Recognition Market 2015-2019: Key Vendors are 3M Cogent, Cognitec Systems, NEC and Safran Group 2Global Facial Recognition Market 2015-2019: Key Vendors are 3M Cogent, Cognitec Systems, NEC and Safran Group 3Research points to need for new approaches to treatment of high blood pressure 2Research points to need for new approaches to treatment of high blood pressure 3Research points to need for new approaches to treatment of high blood pressure 4Wearable Technology Products Demand Highly Accurate Biometric Technology 2
... harness the energy of ATP (or GTP, a related ... examples of motors include myosin and dynein, proteins that ... of actin or tubulin proteins. The ATP-dependent assembly of ... motor: for instance, the march of white blood cells ...
... Bork, Ph.D., Senior Bioinformatics Scientist at the European Molecular ... that they have identified a new primate-specific gene family ... of eight family members, the RGP gene cluster may ... primates from the rest of the animal kingdom. , ...
... scientists has,found the first clear evidence that the ... recognize and respond to a million,different proteins might ... apparent function is to jump around in genetic ... the genetic material, and scientists,have suspected that this ...
Cached Biology News:DNA Recombination and Repair—A New Twist to RecA Function 2Scientists document complex genomic events leading to the birth of new genes 2Scientists document complex genomic events leading to the birth of new genes 3Jumping gene helps explain immune system's abilities 2Jumping gene helps explain immune system's abilities 3
(Date:1/22/2015)... Diagenode, Inc., a leading global provider ... complete solutions for epigenetics research, recently launched a ... need for manual processing. The new ChIPettor System ... histones or transcription factors and a semi-automated pipette ...
(Date:1/22/2015)... 22, 2015  Derma Sciences, Inc. (Nasdaq: ... advanced wound care, announces that AMNIOEXCEL® and AMNIOMATRIX®, ... added to the Premier, Inc. Regenerative Skin Grafting ... the AMNIOEXCEL® and AMNIOMATRIX® product lines, which continue ...
(Date:12/24/2014)... BOTHELL, Wash. , Dec. 24, 2014   BioLife Solutions ... manufacturer and marketer of proprietary clinical grade hypothermic storage ... thermal shipping products for cells and tissues  ("BioLife" or ... Annual Meeting of Stockholders on May 4, 2015 (the "Annual ...
(Date:12/24/2014)... MD (PRWEB) December 23, 2014 On ... H.R. 83, the Omnibus and Continuing Resolution Appropriations Act ... a condition eligible to receive funding through the Congressionally ... of Defense (DoD). The Hydrocephalus Association (HA), working in ...
Breaking Biology Technology:Diagenode Launches Unique Semi-Automated Solution for Chromatin Immunoprecipitation 2Derma Sciences Expands Access of its AMNIOTIC TISSUE Product Line with New Premier, Inc. Agreement 2Derma Sciences Expands Access of its AMNIOTIC TISSUE Product Line with New Premier, Inc. Agreement 3Derma Sciences Expands Access of its AMNIOTIC TISSUE Product Line with New Premier, Inc. Agreement 4Derma Sciences Expands Access of its AMNIOTIC TISSUE Product Line with New Premier, Inc. Agreement 5BioLife Solutions Sets Date for Annual Meeting of Stockholders 2Rare Brain Condition Now Eligible for Department of Defense Research Dollars 2
... Conferences in ... October ... OREX ), a biopharmaceutical company focused on the treatment,of obesity and ... for October 2008, which includes,six data presentations and one sponsored symposium ...
... Germany, Sept. 29 Nomad Bioscience GmbH,announces ... agreement with Bayer,Innovation GmbH and Icon Genetics ... technology platforms, including its transient expression,technology magnICON(R), ... in green plants. The agreement provides,Nomad with ...
... Cooperation with Kentucky Bioprocessing for future-oriented technology, ... 29 Bayer,Innovation GmbH and Kentucky Bioprocessing, ... at KBP,s Owensboro plant in the US ... biopharmaceuticals. Based on Bayer,s proprietary,magnICON(R) technology, plant ...
Cached Biology Technology:Orexigen Therapeutics Announces Multiple Data Presentations at The Obesity Society Annual Scientific Meeting 2Bayer Broadens Its Manufacturing Basis for Biopharmaceuticals in Tobacco Plants 2Bayer Broadens Its Manufacturing Basis for Biopharmaceuticals in Tobacco Plants 3Bayer Broadens Its Manufacturing Basis for Biopharmaceuticals in Tobacco Plants 4
... pLivSelect is a ... for recombinant identification. Recombinant ... colony survival, eliminating the ... screening. This quick and ...
... does for enzyme-/substrate-based blotting what intensifying screens do ... up to 10-fold (or one order of magnitude) ... Signal Enhancer membrane treatment is a simple, 15-minute ... current Western blotting protocol. The result is an ...
... a multi-functional program that searches ... a sequence file for polymerase ... site-directed mutagenesis, and various hybridization ... and secondary structure of oligonucleotides ...
...
Biology Products: