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Topic: Commensalism



  
 Human "Commensalism"
This commensal relationship may be an alternative to what many see as a the allegedly zero sum relationship of the market place, whereby the gain of some must involve the loss of others.
Most folks do not mind commensal relationships so they do not feel the need to attempt to cash in on every benefit they confer upon others, so long as they do gain those benefits they had in mind to obtain in the first place.
We can, though because of certain human attributes such as jealousy and envy not shared with other animals, enjoy benefits from what others do even if indirectly, by piggy backing on their efforts and gaining opportunities in the meanwhile.
http://www.lewrockwell.com/orig/machan3.html   (961 words)

  
 Nearctica - Ecology - Population Ecology - Commensalism
Nearctica - Ecology - Population Ecology - Commensalism
Commensalism is much more difficult to demonstrate than mutualism.
Similar structures have evolved in other many other plant groups.
http://www.nearctica.com/ecology/pops/commens.htm   (1163 words)

  
 Lecture: Normal Flora
Commensalisms are symbiotic relationships between two organisms where one organisms gains and the other organism neither gains nor loses in the interaction.
Normal flora tend to be commensal or mutual symbionts adapted to the special conditions found in various body locations.
What does this suggest to you about the give and take of this relationship?
http://www.mansfield.ohio-state.edu/~sabedon/biol2035.htm   (1588 words)

  
 Commensalism - Wikipedia, the free encyclopedia
In ecology, commensalism is an interaction between two living organisms, where one organism benefits and the other is not affected.
The question of whether the relationship between humans and some types of our gut flora is commensal or mutualistic is still unanswered.
Some biologists argue that any close interaction between two organisms is unlikely to be completely neutral for either party, and that relationships identified as commensal are likely mutualistic or parasitic in a subtle way that has not been detected.
http://en.wikipedia.org/?title=Commensalism   (249 words)

  
 Biological Interaction Encyclopedia Article, Information, History and Biography @ NaturalResearch.org
Commensalism benefits one organism and the other organism is neither benefited nor harmed.
Partners in a symbiotic relationship are constantly in contact with each other.
Competition is an association between two species in which both need some limited environmental factor for growth.
http://www.naturalresearch.org/encyclopedia/Biological_interaction   (598 words)

  
 ReefSlides - August '04 - Commensalism & Mutualism Explored
The transition from a commensal relationship to true mutualism or, conversely, to a parasitic relationship, appears to be easily accomplished, and there are numerous examples of closely related animals exhibiting these different aspects of symbioses.
Yet other species of Periclimenes turn the usual shrimp and anemone relationship onto its head.
So, while the shrimp may be a commensal on its anemone, it may simultaneously be involved in a mutualistic relationship with some of the fish in its community.
http://www.reefkeeping.com/issues/2004-08/reefslides/index.php   (673 words)

  
 The Sea Slug Forum - Symbiosis, commensalism, mutualism and parasitism
Commensalism: In this association one organism [the commensal] benefits, and the other [the host] is apparently unaffected.
There are many examples in nature of two organisms living in close association with each other.
They illustarte the many crustaceans which are often found to have close relationships to various sea slugs.
http://www.seaslugforum.net/factsheet.cfm?base=symbio   (766 words)

  
 Ocean Oasis Teacher's Guide Activity 11
Describe some relationships between organisms in your area that exhibit mutualism, commensalism, or parasitism.
In some relationships, one organism may benefit while the other organism neither gains nor loses.
Referred to as commensalism, an example of this type of relationship might be a bird nest in a tree.
http://www.oceanoasis.org/teachersguide/activity11.html   (458 words)

  
 Scyphozoa - commensalism
Commensalisms are symbioses that are beneficial to one organism and neither beneficial nor detrimental to the other.
It is thought that the jellyfish is not affected by the relationship because it is not eaten by the fish nor does it eat the fish.
A common example of commensalism involves fish, often juveniles, and jellyfish.
http://www2.eve.ucdavis.edu/mndawson/tS/Biol/Ecol/Symbioses/Commensalism.html   (71 words)

  
 commensalism - Columbia Encyclopedia® article about commensalism
commensalism (kəmĕn`səlĭz'əm), relationship between members of two different species of organisms in which one individual is usually only slightly benefited, while the other member is not affected at all by the relationship.
Parasites may or may not harm the host, but they never benefit it.
This information should not be considered complete, up to date, and is not intended to be used in place of a visit, consultation, or advice of a legal, medical, or any other professional.
http://columbia.thefreedictionary.com/commensalism   (269 words)

  
 Nearctica - Ecology - Population Ecology - Muturalism and Commensalism
Nearctica - Ecology - Population Ecology - Muturalism and Commensalism
Predation and competition are treated on separate pages of Nearctica.
Some people assert that the species must physically touch each other and divide symbiosis into mutualism, commensalism, and parasitism.
http://www.nearctica.com/ecology/pops/symbiote.htm   (196 words)

  
 Annelida
Parasites, such as Gregarinoe, Opalinoe, Nematoids, and larval cestodes, are met with internally, and Vorticelloe are common externally.
Commensalism is seen in Choetogaster, which lives on the pond-snails (Limnoeus and Planorbis), and Stylaria is stated also to be ectoparasitic.
They are distributed over the land and fresh waters (in sand an dmud) of the whole world: very few are marine.
http://www.1902-encyclopedia.com/A/ANN/annelida.html   (6221 words)

  
 commensalism
commensalism, relationship between members of two different species of organisms in which one individual is usually only slightly benefited, while the other member is not affected at all by the relationship.
In many cases commensalism cannot be distinguished from parasitism (see
For example, some flatworms live attached to the gills of the horseshoe crab, obtaining bits of food from the crab's meals; the crab is apparently unaffected.
http://www.factmonster.com/ce6/sci/A0813031.html   (169 words)

  
 Commensalism
Commensalism: form of relationship in which one species gains from the
Commensalism is an intimate symbiotic association between two organisms
Commensalism : A close and permanent association between two populations of organisms in which one population benefits without damaging or benefiting the other.
http://www.mongabay.com/reference/environment/Commensalism.html   (234 words)

  
 Commensalism
However, when these bacteria find their way into one's throat or onto one's skin, they typically behave as parasites.
Commensalism is a symbiotic interaction in which one species benefits from the association while neither benefiting nor harming the other.
All scientists are not in agreement on the subject of commensalism, objecting that there is always a cost to a symbiotic relationship.
http://www.cas.muohio.edu/~mbi-ws/BiodiversitySymbiosis/commensalism.htm   (427 words)

  
 Re: what commensalism relationships between plants and animals exist?
The animal is probably not harmed but receives no benefit from transferring the fruit/seeds.
Many textbooks state that epiphytes, plants that live on other plants, represent a plant-plant commensalism.
Re: what commensalism relationships between plants and animals exist?
http://www.madsci.org/posts/archives/May2003/1052445489.Bt.r.html   (355 words)

  
 Host-Pathogen Interactions: Basic Concepts of Microbial Commensalism, Colonization, Infection, and Disease -- ...
Therefore, as discussed in our previous review, the attribute
and commensal organisms may have been more clear-cut, since the
state as a commensal development by the pathogenic microorganism
http://iai.asm.org/cgi/content/full/68/12/6511   (4378 words)

  
 CHAPTER 24, COMMUNITY ECOLOGY
Which of the following relationships would be symbiotic?
A form of symbiosis in which one participant benefits and the other apparently is not benefited or is harmed is
A form of species interaction in which one of the species benefits while the other is unaffected is called
http://www.sirinet.net/~jgjohnso/apbio24quiz.html   (1515 words)

  
 Commensalism
These beetles mimic the ants behavior, and pass as ants.
Commensal organisms frequently live in the nests, or on the bodies, of the other species.
Commensalism is an interspecific interaction where one species benefits and the other is unaffected.
http://www.uic.edu/classes/bios/bios101/interactio/tsld023.htm   (71 words)

  
 Re: What are types of parasitism, commensalism, and mutualism in a desert biome
COMMENSALISM: (+/--)Where one organism benefits and the other neither benefits nor is negatively affected.
Although not a desert example, fleas on a dog are a great demonstration of Parasitism at work.
Sorry it's a marine example, but barnacles on a whale - the barnacle gets a place to live and relative safety, and the whale seems unaffected.
http://www.madsci.org/posts/archives/oct2000/972397448.En.r.html   (200 words)

  
 Microbiology:Host-Pathogen Interactions - Commensalism
The Basic Concepts of Microbial Commensalism, Colonization, Infection, and Disease.
Microbe that induces either no damage or clinically inapparent damage after primary infection; a state that is thought to be established early in life
http://gold.aecom.yu.edu/id/almanac/commensalism.htm   (236 words)

  
 Commensalism. (from symbiosis) --  Britannica Student Encyclopedia
A relationship in which one member benefits while the other is neither helped nor harmed is known as commensalism.
The commensal (the species that benefits from the association) may obtain nutrients, shelter, support, or locomotion from the host species, which is substantially unaffected.
An ongoing study of a highly cooperative group of long-lived nuns has been shedding considerable light on aging and Alzheimer disease.
http://www.britannica.com/ebi/article-210848?tocId=210848   (768 words)

  
 The Sea Slug Forum - Commensalism
There is no specific "Commensalism" website, to my knowledge, but you can find some examples if you do a global search for "commensal" or "commensalism".
As I have said before, there are still some things which are best found by going to a good library and having a browse.
I am looking for specific commensalism relationships that occur in the ocean biome.
http://www.seaslugforum.net/display.cfm?id=486   (252 words)

  
 Survelliance and Commensalism - SD-1.net: Alias Discussion
Commensalism- I got this idea while on a science field trip that was really boring.
I vote commensalism, just because that was one of the few things I learned in grade eight science.
Do you need to ask what my vote is? Hint...it has VAUGHN in it.
http://sd-1.net/index.php?showtopic=7822   (1492 words)

  
 Symbioses
The concept and term symbiosis are attributed to the German mycologist Anton de Bary who, in 1879, defined it to cover any close interspecific association.
Symbiosis literally means 'living together' and de Bary explicitly included commensalism, mutualism and parasitism.
The term commensal was introduced by Pierre-Joseph van Beneden in 1876.
http://scitec.uwichill.edu.bb/bcs/courses/Ecology/BL21B/symbioses.htm   (853 words)

  
 Lab 3: Commensalism
The association is a facultative commensalism; the worms readily leave one starfish for another, and many worms evidently are free-living and never use the shelter of the starfish grooves.
If not, the symbiosis might be considered parasitism (defined below), rather than commensalism.
There are several local species of slipper snail, all with the habit of attaching to the shell of another, larger snail.
http://online.sfsu.edu/~biol240/labs/lab_03symbiosis/pages/commensalism.html   (371 words)

  
 Genome sequence of Symbiobacterium thermophilum, an uncultivable bacterium that depends on microbial commensalism -- ...
in a commensal submerged culture that was derived from compost
Life Science Research Center, College of Bioresource Sciences, Nihon University, 1866 Kameino, Fujisawa, Kanagawa 252-8510, Japan,
that depend on microbial commensalism and the fact that it is
http://nar.oxfordjournals.org/cgi/content/full/32/16/4937   (4211 words)

  
 Biotic Associations: Commensalism, Mutualism, Parasitism
These associations fall into one of several categories: mutualism, commensalism, parasitism etc. By going through the many organisms in the Race Rocks Taxonomy, you will find expalnations for these and other biotic associations.
You will find below a set of photos from our photo archives depicting two or more organisms in a biotic association.
http://www.racerocks.com/racerock/eco/bioassociate/bioassociate.htm   (85 words)

  
 Commensalism equations
Many years ago, our group studied the commensalism of Saccharomyces cerevisiae and Proteus vulgaris where the yeast could grow alone but the bacterium could not because of its requirement for the vitamin niacin.
Together the mixed culture showed the yeast essentially unaffected by the bacterium, but the bacterium could thrive on niacin excreted by the yeast.
Adding niacin broke the commensalism and let the fast-growing bacteria outcompete the yeast (A. Shindala, H.R. Bungay, N.R. Kreig, and K.
http://www.rpi.edu/dept/chem-eng/Biotech-Environ/MixCul/commens1.htm   (94 words)

  
 Commensalism equations 2
The competition in which the bacterium would take over the culture with complete wash out of the yeast is short lived because pumping dilutes the added vitamin to restore the commensalism.
If the vitamin were added to the reservoir instead of to the medium in the bioreactor, the competition would continue.
A typical computer simulation run is shown in the next figure:
http://www.rpi.edu/dept/chem-eng/Biotech-Environ/MixCul/commens2.htm   (217 words)

  
 Search Results for commensalism - Encyclopædia Britannica
Expand your search on commensalism with these databases:
http://www.britannica.com/search?query=commensalism&submit=Find&source=MWTEXT   (8 words)

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