RagulGeneticDriftTurtles

1 collaborator

Ragul Balaji (Author)

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Click to Run Model

turtles-own [ age ]

to setup
  
  clear-all
  
  create-turtles 10
  [
    setxy 0 0
    set size 2
    set shape "turtle"
    set age 0
    pendown
  ]
  
  reset-ticks
end 

to go
  
  every .05
  [
    ask turtles
    [
      wander
      maybe-reproduce
      set age age + 1
      maybe-die
    ]
    tick
  ]
end 

to wander
  
  rt (random 11) - 5
  fd .2
end 

to maybe-reproduce
  
  if(age > 10 and age < 65)[
    let chanceRePro random 100
    if(chanceRePro < 2)
    [
      reproduce
    ]
  ]
end 

to reproduce
  
  hatch 1
  [
    set age 0
  ]
end 

to maybe-die
  
  if(age > 75)[
    let chanceOldAge random 126
    ifelse(age > 200)
    [
      die
      penup
    ]
    [
      if(chanceOldAge > (200 - age))
      [
        die
        penup
      ]
    ]
  ]
end

There is only one version of this model, created about 13 years ago by Ragul Balaji.

Attached files

File	Type	Description	Last updated
RagulGeneticDriftTurtles.png	preview	Preview for 'RagulGeneticDriftTurtles'	over 12 years ago, by Ragul Balaji	Download

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