Navigation Links
When it comes to fish families, the bigger and bossier the better
Date:12/14/2009

HAMILTON, ON, December 10, 2009If you are spending the holidays with big Uncle Frank or bossy Aunt Minnie and wondering whether you would be better off with another family, spare a thought for the humble cichlid fish.

A research team from McMaster University and the University of New South Wales has found that among cichlids, a species that lives in groups, members make strategic decisions about their living situation.

The results appear in the current issue of Biology Letters.

The helper class of cichlids showed a preference for joining groups of familiar individuals, some likely to be family members. But when given the choice between unfamiliar social groups the helpers chose groups where the members were bigger and bossier.

At the beginning of the experiment, which was conducted in Zambia's Lake Tanganyika, researchers expected that individual cichlids would base their group-living arrangements on whether they could improve their social rank and thereby expedite their attainment of breeding status.

However, when faced with a choice between unfamiliar groups they chose the group that did not enhance their rank but that contained larger group members.

"It seems that cichlids potentially prefer groups of dominant members for reasons of survival due to the increased protection from predation when larger group members are around," says Marian Wong, a post-doctoral fellow in McMaster's Department of Psychology, Neuroscience & Behaviour, and co-author of the study.

In other words, fishlike humansunderstand that membership has its rewards.


'/>"/>

Contact: Jane Christmas
chrisja@mcmaster.ca
905-525-9140 x27988
McMaster University
Source:Eurekalert

Page: 1

Related biology news :

1. Stopping MRSA before it becomes dangerous is possible, Sandia/UNM researchers find
2. Bigger not necessarily better, when it comes to brains
3. Agronomy Society welcomes USDA Mississippi River Basin Initiative
4. Chinas new Climate Center welcomes citizen scientists
5. Growing outcomes evidence spurs renewed interest in unique heart valve procedure
6. The war against wildlife comes to an end in Southern Europe
7. When it comes to brain damage, blankets take the place of drugs
8. First aid for brain cells comes from blood
9. Red wine vs. white? It makes no difference when it comes to breast-cancer risk
10. Tom Cruise smile comes with a sunburn price
11. When it comes to sleep research, fruit flies and people make unlikely bedfellows
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:6/24/2015)... , June 22, 2015 ... the addition of the "Huawei Ascend Mate ... report to their offering. Huawei,s technological ... the opposite direction than Apple,s and Samsung,s one. ... sensor developed by Fingerprint Cards, a main actor ...
(Date:6/23/2015)... 23, 2015   MedNet Solutions , an ... entire spectrum of clinical research, is pleased to ... , the company,s intuitive, flexible and affordable cloud-based ... 2015 Stevie® Award by the American Business ... Website category.  The American Business Awards are considered ...
(Date:6/23/2015)... , June 23, 2015   Valencell, ... announced the results of a recent study that ... on the wrist during activity. In a study ... was compared along with the Apple Watch against ... measuring heart rate during activity. The study demonstrated ...
Breaking Biology News(10 mins):Huawei Ascend Mate 7 Fingerprint Sensor - Reverse Costing Analysis 2MedNet Solutions' iMedNet eClinical Wins Silver Stevie Award 2Valencell Delivers Breakthrough Heart Rate Accuracy on the Wrist 2Valencell Delivers Breakthrough Heart Rate Accuracy on the Wrist 3
... vast majority of patients who had a successful ... need mitral valve surgery three years after their ... of the left ventricle (commonly known as reverse ... the Cardiovascular Research Foundations (CRF) nineteenth annual Transcatheter ...
... D.C. October 24, 2007 - The U.S. Senate ... Appropriations Bill (S.1710), including a provision that directs the ... Access Policy by requiring rather than requesting participation by ... House Appropriations Bill, which contains a similar provision, in ...
... Germany-October 24, 2007-Harvard University,s Office of Technology Development ... jointly establish the BASF Advanced Research Initiative. ... and Applied Sciences (SEAS) the initiative will benefit ... throughout the University. Set up as a ...
Cached Biology News:New data shows benefits of MitraClip for patients with mitral regurgitation 2New data shows benefits of MitraClip for patients with mitral regurgitation 3Mandate for public access to NIH-funded research poised to become law 2BASF and Harvard University announce extensive research collaboration 2
(Date:6/30/2015)... June 30, 2015 /PRNewswire/ - RepliCel Life Sciences ... regenerative medicine company focused on the development of ... in its Phase 1/2 clinical trial of RCT-01, ... Achilles tendinosis, has been enrolled and their tissue ... injections. RCT-01 is comprised of non-bulbar dermal sheath ...
(Date:6/30/2015)... Tampa, Florida (PRWEB) , ... June 30, 2015 ... ... medical cannabis digital media company, launched “Cannavoices,” an unprecedented digital video and ... the largest but also the most dynamic collection of legal medical cannabis stories ...
(Date:6/29/2015)... ... June 29, 2015 , ... The global ... during the forecast period (2015 to 2020). The market is mainly driven by ... corporate funding for R&D. However, lack of adequate healthcare and research infrastructure in ...
(Date:6/29/2015)... , June 29, 2015  Neuralstem, Inc. (NYSE ... technology to develop small molecule and cell therapy treatments ... has been approved for listing on the NASDAQ Capital ... will continue to trade on the NYSE MKT until ... the NASDAQ Capital Market is expected to commence on ...
Breaking Biology Technology:RepliCel Life Sciences Enrolls First Participant in Phase 1/2 Clinical Trial of RCT-01 for Chronic Achilles Tendinosis 2RepliCel Life Sciences Enrolls First Participant in Phase 1/2 Clinical Trial of RCT-01 for Chronic Achilles Tendinosis 3RepliCel Life Sciences Enrolls First Participant in Phase 1/2 Clinical Trial of RCT-01 for Chronic Achilles Tendinosis 4Cannavoices Launches a Legal Medical Cannabis Documentary Initiative 2Cannavoices Launches a Legal Medical Cannabis Documentary Initiative 3Microfluidics Market Growing at 19.3% CAGR To 2020 – New research available at ReportsnReports.com 2Microfluidics Market Growing at 19.3% CAGR To 2020 – New research available at ReportsnReports.com 3Microfluidics Market Growing at 19.3% CAGR To 2020 – New research available at ReportsnReports.com 4Microfluidics Market Growing at 19.3% CAGR To 2020 – New research available at ReportsnReports.com 5Neuralstem, Inc. Announces Approval for Listing on the NASDAQ Capital Market 2Neuralstem, Inc. Announces Approval for Listing on the NASDAQ Capital Market 3
... tracking the number and dimension of particles or droplets as they ... are specific and possibly unique, changes that are of critical importance ... provide you with the knowledge, information and best practices you need ... ...
... of a new system to study crystallization processes for ... name,Crystalline. , The Crystalline has ... to learn as much as possible about a drug ... "Avantium is proud to launch its next system ...
... Institute have discovered a new method for controlling ... potentially one step closer to realizing the mass ... sheet of carbon, was discovered in 2004 and ... silicon as the fundamental building blocks of nanoelectronics. ...
Cached Biology Technology:Maximize Data Analysis with METTLER TOLEDO FBRM 2Avantium Launches the Crystalline, a New Parallel System for Crystallization Research 2Light-speed nanotech: Controlling the nature of graphene 2
Synaptic Vesicle I Sampler Kit 10g each...
Mouse monoclonal [3A7.A11] to Thymidylate Synthase ( Abpromise for all tested applications). entrezGeneID: 7298 SwissProtID: P04818...
Mouse monoclonal [N7519] to NR0B2 ( Abpromise for all tested applications). Antigen: E.coli expressed recombinant full length protein (Human) NR0B2 Entrez Gene ID: 8431 Swiss Protein ID: ...
Integrins Sampler Kit 10g each...
Biology Products: