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Dispersal  [ Biology - Ecology - Botany]
Synonym: Dissemination, Distribution

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  In biology the dispersal or dissemination is the natural process of dispersing of plant fruit and seeds and of the offspring of non-mobile organisms over a wide area.  
Plants reproduce in a very different way than animals, they produce new plants by making seeds. Seeds usually move away from the parent plant in some way and grow in new places sometimes a long way from the parents.
Fruit disseminate together at the time it or its seed(s) are dispersed from the plant, or just prior to germination on the plant.
The Dissemination is important because if the seeds are not dispersed, many germinating seedlings will grow very close to the parent plant. This results in competition between every one of the seedlings as well as with the parent plant. The competition is for light, space, water and nutrients. All of these are important for plants to be able to grow. The mechanism by which this is done is called dispersal.

There are six common means of dispersal:

Anemochory: Dispersal by wind.
Autochory: Dispersal by physical expulsion, often explosively.
Hydrochory: Dispersal by water.
Zoochory: Dispersal by animals:
   - Endozoochory: Dispersal through animal ingestion and excretion. 
   - Epizoochory: Dispersal by attachment to fur or feathers.
   - Myrmecochory: Dispersal by ants.


Dispersal (of propagule )   [ Botany]
  The term dispersal is also referred to the process of dispersing of plant propagule in vegetative reproduction  





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