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:8/31/2015)... Research and Markets ( http://www.researchandmarkets.com/research/st5b3m/saudi_arabia ) has ... Sensors Market - Growth, Trends & Forecasts (2014-2020)" ... Arabia Biomedical Sensors market is estimated at $0.23 billion ... period 2014-2020 The near future will bring ... of each individual. These sensors can be set to ...
(Date:8/25/2015)... and BELLEVUE, Wash. , Aug. ... advanced robotic systems, announced today it will unveil its ... vehicle (UGV), at the National Tactical Officers Association Conference ... The Guardian S is the first-ever commercially available ... years of research and in-field trials and is protected ...
(Date:8/20/2015)... The wearable technology market has traditionally ... healthy. However, wearable technology has the potential to ... improve diagnostic capabilities and therapeutic outcomes. Today, Leaf ... Technologies Conference 2015 , where Barrett Larson ... healthcare.    "Over the past decade, ...
Breaking Biology News(10 mins):Saudi Arabia Biomedical Sensors Market Report 2015 - Growth, Trends & Forecasts (2014-2020) 2Sarcos to Debut First-of-its-Kind Snake Robot 2Sarcos to Debut First-of-its-Kind Snake Robot 3Leaf Healthcare Releases Video from Wearable Technology Conference on New Applications for Wearables in the Hospital Environment 2Leaf Healthcare Releases Video from Wearable Technology Conference on New Applications for Wearables in the Hospital Environment 3
... For nearly half a century, scientists have been trying ... reasonably sized X-ray laser that could, among other things, ... decades, University of Colorado at Boulder physics professors Margaret ... that goal. Recent breakthroughs by their team at ...
... arrhythmia a chronic irregularity of heartbeat which ... the condition is not acutely life-threatening, it does increase ... cardiac insufficiency, stroke and dementia. In the third of ... of researchers, led by LMU physician PD Dr. Stefan ...
... world,s population will swell to 9 billion people by ... to provide enough food to meet demand, says University ... Branen, a University of Idaho food scientist, organized a ... Science annual meeting Sunday to explore ways biotechnology could ...
Cached Biology News:CU physicists use ultra-fast lasers to open doors to new technologies unheard of just years ago 2CU physicists use ultra-fast lasers to open doors to new technologies unheard of just years ago 3When the heart gets out of step 2When the heart gets out of step 3Biotech, nanotech and synthetic biology roles in future food supply explored 2
(Date:9/2/2015)... Axovant Sciences Ltd. (NYSE:  AXON), a leading clinical-stage biopharmaceutical company ... at three investor conferences: , Wednesday, September 9 ... New York at the New York ... at the BioCentury NewsMakers Conference in New York ... , Thursday, September 17 at 9:30 AM at the ...
(Date:9/2/2015)... LIBERTYVILLE, Ill. (PRWEB) , ... ... ... a leading provider of regulatory compliance, quality systems, analytical testing, education and ... consulting firm with expertise in medical device products/processes development, design control, validation, ...
(Date:9/2/2015)... 02, 2015 Research ... addition of Jain PharmaBiotech,s new report "Biochips ... to their offering. This report is ... and applications. The report starts with a description ... markets. Technologies include array comparative genomic hybridization (CGH), ...
(Date:9/2/2015)... 02, 2015 Research ... addition of Jain PharmaBiotech,s new report "Biomarkers ... offering. This report follows the broad ... can be objectively measured and evaluated as an ... well as pharmacological responses to a therapeutic intervention. ...
Breaking Biology Technology:Axovant Sciences To Present At Upcoming Investor Conferences 2Axovant Sciences To Present At Upcoming Investor Conferences 3NSF International Strengthens Medical Device Consulting With Acquisition of Avarent LLC 2NSF International Strengthens Medical Device Consulting With Acquisition of Avarent LLC 3NSF International Strengthens Medical Device Consulting With Acquisition of Avarent LLC 4NSF International Strengthens Medical Device Consulting With Acquisition of Avarent LLC 5NSF International Strengthens Medical Device Consulting With Acquisition of Avarent LLC 6NSF International Strengthens Medical Device Consulting With Acquisition of Avarent LLC 7Global Biochips and Microarrays Technologies, Markets and Companies Report 2015 with Market Size in 2014 and Projected Value for the Years 2019 and 2024 2Updated 2015 Biomarkers Report - Latest Technologies, Markets and Companies Insights to 2024 with over 1,000 References 2Updated 2015 Biomarkers Report - Latest Technologies, Markets and Companies Insights to 2024 with over 1,000 References 3
... SAN RAMON, Calif., Aug. 7 Odyssey Thera, ... from Pfizer Inc, following,Pfizer,s decision to progress a ... candidate was extensively studied by,Odyssey Thera as part ... are very pleased with the progress of the ...
... 7 /Xinhua-PRNewswire-FirstCall/ -- China-Biotics,Inc. (OTC Bulletin Board: CHBT), ... manufacture, marketing and distribution of,probiotics dietary supplements, today ... a.m. EDT on Friday, August 15, 2008, to ... ended June 30, 2008, of its fiscal,2009., ...
... SCOLR Pharma, Inc.,(Amex: DDD ) today reported ... 30, 2008. The Company will host a live conference ... Time)., Daniel O. Wilds, SCOLR Pharma,s President and ... during the second quarter,maintaining a sharp focus on advancing ...
Cached Biology Technology:China-Biotics, Inc. Announces Conference Call to Discuss First Quarter 2009 Financial Results 2China-Biotics, Inc. Announces Conference Call to Discuss First Quarter 2009 Financial Results 3SCOLR Pharma, Inc. Reports Second Quarter 2008 Financial Results 2SCOLR Pharma, Inc. Reports Second Quarter 2008 Financial Results 3SCOLR Pharma, Inc. Reports Second Quarter 2008 Financial Results 4SCOLR Pharma, Inc. Reports Second Quarter 2008 Financial Results 5SCOLR Pharma, Inc. Reports Second Quarter 2008 Financial Results 6SCOLR Pharma, Inc. Reports Second Quarter 2008 Financial Results 7
... Sciences provides a comprehensive kinase analysis ... substrate (PKS) peptide microarrays synthesized on ... kinase profiling, quantitative measurement of kinase ... This comprehensive service includes preparation of ...
... NH2-terminal kinase) signal transduction cascade is ... pathways in mammals. JNK pathway activation ... is associated with the nuclear accumulation ... in the immune response, cellular proliferation, ...
... ProteomeLab PA 800 is an automated, ... of Beckman Coulters ProteomeLab family of ... comprehensive range of automated protein characterization ... mapping, isoelectric focusing, carbohydrate profiling and ...
... Library Panels were designed for full-length gene ... PCRs to identify the desired cDNA clone. ... a 96-well "Master Plate," where each well ... identified the positive well(s) by gel electrophoresis ...
Biology Products: