Navigation Links
Social networking helps hermit crabs find homes
Date:4/26/2010

? One previously identified strategy that apparently helps each hermit crab find the very best shell is joining a lively group activity known as a synchronous vacancy chain. When a new shell becomes available, crabs gather around it and queue up in a line from largest to smallest. Once the largest crab moves into the vacant shell, each crab in the queue swiftly switches into the newly vacated shell right in front of them. As a result, a single vacant shell kicks off an entire chain of shell vacancies that ultimately leads to many crabs getting new, and generally improved, housing.

Hermits Show New Social Behaviors

By seeding vacant shells into field populations and staying up all night to see what happened, the scientists discovered some previously unknown hermit crab behaviors. When a hermit crab discovers an empty but oversized shell, it waits nearby rather than simply walking away. Once a small group gathers, crabs begin piggybacking by holding onto the shell of a larger crab and riding along. Such waiting and piggybacking behaviors seem to increase the chances that a synchronous vacancy chain will happen. "They spend hours queuing up, and then the chain fires off in seconds, just like a line of dominoes," says Rotjan. Computer models populated with virtual hermit crabs and shells confirmed that synchronous vacancy chains depend not only on crab density, but also on how long crabs are programmed to wait near an unsuitable shell.

According to Rotjan, the same kind of synchronous vacancy chain can occur with any animal that relies on discrete and reusable resources, such as anemone-dwelling fish and hole-nesting woodpeckers. Studying vacancy chains in hermit crabs might even lend new perspective on human behaviors, since people regularly participate in synchronous vacancy chains. For example, every September 1, neighborhood streets in Boston, Mass., are clogged with rental trucks and moving vans. This signals that the city's many
'/>"/>

Contact: Kim Thurler
kim.thurler@tufts.edu
617-627-3175
Tufts University
Source:Eurekalert

Page: 1 2 3

Related biology news :

1. Social habits of cells may hold key to fighting diseases
2. Social parasites of the smaller kind
3. 454 Sequencing uncovers a genetic basis for different social behaviors in wasp
4. NHGRI funds new Centers for Excellence in Ethical, Legal and Social Implications Research
5. Carnegie Mellon, Pitt Team to study psychosocial stress
6. Social stress + darkness = increased anxiety
7. Social standing influences elephant movement
8. Effects of social isolation traced to brain hormone
9. Genes and environment interact in first graders to predict physical but not social aggression
10. Research uncovers the social dynamics of yellow jackets
11. Reflecting on the social implications of human genetics research -- past, present and future
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:8/19/2014)... Some infants born with neonatal abstinence syndrome (NAS) ... difficult time going through withdrawal than others, but ... genetic and epigenetic (when genes are turned on ... potential factors, researchers at Boston University School of ... a first of its kind study to identify ...
(Date:8/19/2014)... in college biology and other science courses are ... ways, and now they have a new textbook ... Life Sciences," published this month by Princeton Press ... for Mathematical and Biological Synthesis (NIMBioS), teaches readers ... be used to explore and explain biological phenomena. ...
(Date:8/19/2014)... been awarded a nearly $40,000 grant from the National ... of the National Park Service (NPS) and U.S. Department ... study of the energy efficiency and cost effectiveness of ... climates. , Radiant barriers are reflective thermal insulations commonly ... thereby reducing the amount of heat emitted in the ...
Breaking Biology News(10 mins):In-utero methadone, Subutex exposure could alter gene expression, cause severe Neonatal Abstience Syndrome 2New textbook introduces undergraduates to mathematics for the life sciences 2UTSA researcher awarded $38K+ to evaluate energy efficiency options for historic homes 2UTSA researcher awarded $38K+ to evaluate energy efficiency options for historic homes 3
... Va.Catheter Lysis of Thromboembolic Stroke (CLOTS)an intensive five-day ... Oct. 24-28 in Dallas, Texasprovides interventional radiologists, neurointerventionalists, ... opportunity to review, observe and discuss all aspects ... the third-leading cause of death in the United ...
... 2010 A yearlong beach study led by a ... at sub-tropical beaches face an increased risk of illness. ... beachgoers face when exposed to recreational marine water at ... contamination. B.E.A.C.H.E.S. (Beach Environmental Assessment and ...
... Calif. , July 28 DigitalPersona, ... protection solutions, today announced DigitalPersona® Pro Enterprise, a ... protection and communication security.  DigitalPersona Pro Enterprise helps ... mobile workforces -- full disk encryption (FDE), two-factor ...
Cached Biology News:Explore stroke care with Society of Interventional Radiology's CLOTS 2Study suggests swimmers at sub-tropical beaches show increased risk of illness 2DigitalPersona Delivers New Centrally-Managed Solution for Notebook Data Protection and Remote Access Security 2DigitalPersona Delivers New Centrally-Managed Solution for Notebook Data Protection and Remote Access Security 3DigitalPersona Delivers New Centrally-Managed Solution for Notebook Data Protection and Remote Access Security 4
(Date:8/18/2014)... Global HIV Infection Drug Market and Pipeline Insight is ... HIV infection and the number of deaths due to AIDS ... across the globe. It has been estimated that the death ... 2013, with the rates for children being even much lower. ... rates has been the improved access to antiretroviral drugs and ...
(Date:8/18/2014)... , Aug. 18, 2014 TNI BioTech, Inc. ... pioneering the manufacturing and marketing of innovative therapies for ... Company is providing a second notice of TNI BioTech,s ... making the announcement, Noreen Griffin , founder and ... advance for your participation in the Annual Meeting. On ...
(Date:8/18/2014)... August 2014 Vier führende deutsche ... klinische Studie auf, in der eine Intraokularlinse ... das Sehvermögen bei allen Entfernungen verbessern, so ... keine Lese- oder Gleitsichtbrille mehr benötigen. Die ... FluidVision Accommodating Intraocular Lens (FluidVision akkomodative ...
(Date:8/16/2014)... a way to make atomic-force microscope probes 20 times ... as the weight of an individual virus. , The ... (ANU), hinges on using laser beams to cool a ... level of sensitivity achieved after cooling is accurate enough ... virus that is 100 billion times lighter than a ...
Breaking Biology Technology:Global HIV Infection Drug Market Overview 2Global HIV Infection Drug Market Overview 3Global HIV Infection Drug Market Overview 4TNI BioTech Inc., provides 2nd Notice of Annual Meeting September 4, 2014 2TNI BioTech Inc., provides 2nd Notice of Annual Meeting September 4, 2014 3TNI BioTech Inc., provides 2nd Notice of Annual Meeting September 4, 2014 4Implantation einer revolutionären akkommodativen Linse bei Katarakt-Patienten in deutschen Augenzentren im Rahmen einer internationalen klinischen Studie 2Implantation einer revolutionären akkommodativen Linse bei Katarakt-Patienten in deutschen Augenzentren im Rahmen einer internationalen klinischen Studie 3Implantation einer revolutionären akkommodativen Linse bei Katarakt-Patienten in deutschen Augenzentren im Rahmen einer internationalen klinischen Studie 4Laser makes microscopes way cooler 2
... , ... ... ... ...
... , ... ... ... ...
... ... ... ... ...
Cached Biology Technology:PDL BioPharma Announces Fourth Quarter and Full Year 2009 Financial Results and Provides First Quarter 2010 Revenue Guidance 2PDL BioPharma Announces Fourth Quarter and Full Year 2009 Financial Results and Provides First Quarter 2010 Revenue Guidance 3PDL BioPharma Announces Fourth Quarter and Full Year 2009 Financial Results and Provides First Quarter 2010 Revenue Guidance 4PDL BioPharma Announces Fourth Quarter and Full Year 2009 Financial Results and Provides First Quarter 2010 Revenue Guidance 5PDL BioPharma Announces Fourth Quarter and Full Year 2009 Financial Results and Provides First Quarter 2010 Revenue Guidance 6PDL BioPharma Announces Fourth Quarter and Full Year 2009 Financial Results and Provides First Quarter 2010 Revenue Guidance 7PDL BioPharma Announces Fourth Quarter and Full Year 2009 Financial Results and Provides First Quarter 2010 Revenue Guidance 8PDL BioPharma Announces Fourth Quarter and Full Year 2009 Financial Results and Provides First Quarter 2010 Revenue Guidance 9PDL BioPharma Announces Fourth Quarter and Full Year 2009 Financial Results and Provides First Quarter 2010 Revenue Guidance 10PDL BioPharma Announces Fourth Quarter and Full Year 2009 Financial Results and Provides First Quarter 2010 Revenue Guidance 11PDL BioPharma Announces Fourth Quarter and Full Year 2009 Financial Results and Provides First Quarter 2010 Revenue Guidance 12PDL BioPharma Announces Fourth Quarter and Full Year 2009 Financial Results and Provides First Quarter 2010 Revenue Guidance 13PDL BioPharma Announces Fourth Quarter and Full Year 2009 Financial Results and Provides First Quarter 2010 Revenue Guidance 14PDL BioPharma Announces Fourth Quarter and Full Year 2009 Financial Results and Provides First Quarter 2010 Revenue Guidance 15PDL BioPharma Announces Fourth Quarter and Full Year 2009 Financial Results and Provides First Quarter 2010 Revenue Guidance 16AMA Honors NIH Chief Molecular Biologist Ira Pastan, M.D. With Top Government Service Award 2AMA Honors NIH Chief Molecular Biologist Ira Pastan, M.D. With Top Government Service Award 3YM sees nimotuzumab license unaffected by civil claim against licensor 2YM sees nimotuzumab license unaffected by civil claim against licensor 3YM sees nimotuzumab license unaffected by civil claim against licensor 4YM sees nimotuzumab license unaffected by civil claim against licensor 5
... The DNA Engine Tetrad thermal cycler ... the pioneering PTC-200 DNA Engine cycler. ... the capacity with a footprint only ... throughput for laboratories that run massive ...
The sealed ice cooling unit is used to absorb heat that is generated during transfers performed in the Criterion blotter....
The SVT3-2 diverter valve is a 3-port, 2-position valve for use with the BioLogic DuoFlow system....
... is for 2-D separations. The cell has a ... II xi multi-cell can be customized for several ... and cooling system. The PROTEAN II xi multi-cell ... XL multi-cell for a wider format that accommodates ...
Biology Products: