Navigation Links
The higher the hierarchy, the greater the aggression

Individual variation in social behavior is one of the most striking features of cooperative animal societies. In a new study from the June issue of American Naturalist, Michael A. Cant (University of Cambridge), Justine B. Llop (University of Cambridge), and Jeremy Field (University College London) investigate the extent to which differences in aggressive behavior within a cooperative society can be explained by "inheritance rank"--the likelihood that an individual will get to mate successfully in that society based on their rank--or place in the social hierarchy. They can only pass on their genes when they reach the top of the hierarchy, usually after those ahead of them in the rank have died and they have inherited the right to reproduce.

"Certain group members inflict or receive many more acts of aggression than others. In some cases, these acts (which include bites, shoves, mounts, and charges) appear to regulate cooperative activity in the group by activating lazy workers, for example, or punishing defectors," write the researchers.

The researchers developed two simple mathematical models that predicted that, if inheritance rank mattered in a cooperative society, then the rates of aggression would be highest toward the front of the queue and that the aggression would increase as the time available to inherit the ability to breed ran out in seasonal animals. These predictions were tested on field colonies of the paper wasp Polistes dominulus by recording aggression between all group members and then repeatedly removing the dominant wasps.

When individuals were experimentally promoted in rank, their aggression toward subordinates increased radically, suggesting that aggression depends on rank rather than vice versa and that particularly high levels of aggression are used by newly promoted dominants to establish their status. "We found that rates of both aggressive 'displays' (aimed at individuals of lower rank) and aggressive 'tests' (ai
'"/>

Source:University of Chicago Press Journals


Page: 1 2

Related biology news :

1. Climate model links higher temperatures to prehistoric extinction
2. Pregnant women at higher risk for HIV, Uganda study finds
3. GM crop that holds on to its seeds offers higher yields
4. Navigating the brain for sense of direction as paradigm for higher cognitive functions
5. Virginia Tech helping to develop higher quality, disease-resistant wheat varieties
6. Avian flu transmission to humans may be higher than thought
7. Chromosomal abnormalities in sperm higher after vasectomy reversal
8. Metal homeostasis research in plants will lead to nutrient-rich food and higher yielding crops
9. Indicators for risk of heart disease are higher in passive smokers
10. Greasing interferons gears may pave way to greater therapeutic benefits, fewer side effects
11. Forsyth scientists gain greater understanding of how embryos differentiate left from right
Post Your Comments:
*Name:
*Comment:
*Email:
TAG: The higher the hierarchy the greater the aggression

(Date:1/22/2015)... Jan. 16, 2015  A man-made form of insulin delivered ... mental capabilities in adults with mild cognitive impairment and ... by researchers at Wake Forest Baptist Medical Center. ... amnesic mild cognitive impairment (MCI) or mild to moderate ...
(Date:1/22/2015)... and POINT ROBERTS, Washington , ... source covering leading sectors including technology and tech stocks, releases ... marketplace featuring master pickpocket and security consultant Apollo Robbins ... stolen and talks about the Wocket™ biometric smart wallet, a ...
(Date:1/22/2015)... , January 22, 2015 , ... tenth year  The European Patent Office to present a ... Two British nominations to be featured: Christofer Toumazou and ... featuring former finalists and winners of the Award   ...
Breaking Biology News(10 mins):Nasal Spray with Insulin Equivalent Shows Promise as Treatment for Adults with Mild Cognitive Impairment, Alzheimer's Dementia 2Nasal Spray with Insulin Equivalent Shows Promise as Treatment for Adults with Mild Cognitive Impairment, Alzheimer's Dementia 3Apollo Robbins Talks about the Illusion of Personal Safety and How Easily Your Wallet is Stolen; If a Wocket Wallet is Stolen the Thief Can't do Anything With it! 2Apollo Robbins Talks about the Illusion of Personal Safety and How Easily Your Wallet is Stolen; If a Wocket Wallet is Stolen the Thief Can't do Anything With it! 3Ten Years of the European Inventor Award: A Retrospective Look at the Inventors and Ideas That Have Changed Our Lives 2Ten Years of the European Inventor Award: A Retrospective Look at the Inventors and Ideas That Have Changed Our Lives 3
... Hormone-mimicking chemicals released into rivers have been found to ... has revealed. The controversial chemical BPA, which emits oestrogen-like ... behavior, leading to inter-species breeding. The study, published in ... when the boundaries between species are blurred. ...
... , URBANA A new strategy to manage invasive ... in the Grand River Grasslands, an area within the ... researcher along with his colleagues at Iowa State and ... community-building effort to establish a more diverse landscape for ...
... have determined that levels of hepatitis C virus (HCV) ... individuals who are male or African American even after ... was funded by the National Cancer Institute and performed ... Center and the University of California - San Francisco, ...
Cached Biology News:Hormone-mimicking chemicals cause inter-species mating 2Grassroots approach to conservation developed 2Grassroots approach to conservation developed 3Levels of hepatitis C virus higher among African-Americans and males 2
(Date:1/22/2015)... Selexis SA, a serial innovation company with ... used for drug discovery to commercial manufacturing, announced today ... Next-Generation Sequencing (NGS) data packages. The NGS analysis ... ensuring the integrity of the gene, validation of the ...
(Date:1/22/2015)... PALO ALTO, Calif. , Jan. 22. 2015  Varian Medical ... equipment and software, has been honored for its commitment to ... most sustainable companies. Varian is the highest ranked healthcare equipment ... ranking, announced today during the World Economic Forum at ...
(Date:12/24/2014)...  United Therapeutics Corporation (NASDAQ: UTHR ) announced ... has submitted a pre-market approval application to the U.S. ... Medtronic,s SynchroMed ® II implantable drug infusion system ... Therapeutics, Remodulin ® (treprostinil) Injection delivered intravenously to ...
(Date:12/24/2014)... 2014 “Preparative & Process Chromatography ... Consumables (Columns, Solvents, Buffers, Valves, Guages, Seals), Accessories, ... - Forecasts to 2019” provides a detailed overview ... market trends, and strategies impacting the preparative and ...
Breaking Biology Technology:Selexis Generated Research Cell Banks Now Fully Sequenced Using Next-Generation Sequencing 2Varian Honored Among World's 100 Most Sustainable Corporations 2United Therapeutics Announces Submission Of Pre-Market Approval Application For Implantable Drug Infusion System To Deliver Remodulin 2United Therapeutics Announces Submission Of Pre-Market Approval Application For Implantable Drug Infusion System To Deliver Remodulin 3United Therapeutics Announces Submission Of Pre-Market Approval Application For Implantable Drug Infusion System To Deliver Remodulin 4Preparative and Process Chromatography Market is expected to reach $9 billion by 2019 - New Report by Marketsandmarkets 2Preparative and Process Chromatography Market is expected to reach $9 billion by 2019 - New Report by Marketsandmarkets 3Preparative and Process Chromatography Market is expected to reach $9 billion by 2019 - New Report by Marketsandmarkets 4
... ... Quantitative, Reproducible Imaging and Enhancing Fluorescence Correlation Spectroscopy Data , ... (PRWEB) February 19, 2010 -- Photometrics ... will offer two educational presentations at the 2010 Biophysical Annual Meeting. The presentations will ...
... MONTREAL , Feb. 18 /PRNewswire/ - Enerkem ... today announced that Mr. Patrice Ouimet has ... , Mr. Ouimet brings a wealth of knowledge to ... in corporate strategy, corporate development and investment banking. Prior ...
... ... 2009, changes to the pharmaceutical landscape could mean the relatively-small number of layoffs in that ... ... of the employment situation. Overall, the Bureau of Labor Statistics found that the U.S. unemployment ...
Cached Biology Technology:Photometrics to Offer Presentations on EMCCD Bio-Imaging Advances at 2010 Biophysical Annual Meeting 2Photometrics to Offer Presentations on EMCCD Bio-Imaging Advances at 2010 Biophysical Annual Meeting 3Photometrics to Offer Presentations on EMCCD Bio-Imaging Advances at 2010 Biophysical Annual Meeting 4Enerkem appoints new Chief Financial Officer 2The MedZilla Report for February 2010 - Health Care Growth Slows; Big Pharma May Cut Thousands as Sales Landscape Changes 2The MedZilla Report for February 2010 - Health Care Growth Slows; Big Pharma May Cut Thousands as Sales Landscape Changes 3The MedZilla Report for February 2010 - Health Care Growth Slows; Big Pharma May Cut Thousands as Sales Landscape Changes 4
... Steady gravity-fed delivery of buffer ... animal perfusion. Rat version. In Vivo ... results--Steady gravity-fed delivery of buffer and ... Easy to setup, use and clean--Complete ...
... in your 35mm dish without transferring ... Chamber has separate openings for solution ... fluctuations of the liquid level in ... from entering the chamber. An adjustable ...
Sf21 cells derived from Spodoptera frugiperda ovarian cells are recommended for high-level production of recombinant proteins. Higher expression levels of some proteins are seen due to the larger ce...
Sf9 cells derived from Spodoptera frugiperda ovarian cells (Sf21 cells) are commonly used to isolate and propagate recombinant AcMNPV viral stocks and to produce recombinant proteins....
Biology Products: