Mammoth Sample Model

[jieun kim]

Hello!
 
I just wanted to ask what are the parameters for the 'cause of mammoth
deaths'? Are they the number of mammoths that have died from climate change
and human influence, or some other unit?
 
Thank you!

[Michael Tamillow]

Like most things in life, it’s complicated.

if any? mammoths-here [

      let r random 100

      if r < 3 [ die ] ; mammoths have a 3% chance of killing the human

      if r < 3 + odds-of-killing [

        ask one-of mammoths-here [ die ] ; successfully hunt a mammoth!

        set mammoths-killed-by-humans mammoths-killed-by-humans + 1

      ]

This part is like wolf-sheep predation. The next part is unrelated.

    ask mammoths [

    ; mammoths have a 5% chance of dying if they're over 30

    if age > 30 * 12 and random-float 100 < 5 [ die ]

    ; they also get another 5% chance of dying if their density is too high

    if density > 0.50 and random-float 100 < 5 [ die ]

    ; if they are on a patch affected by climate change, they get a 5% chance of dying

    if [ pcolor ] of patch-here = green + 3 and random-float 100 < 5 [

      set mammoths-killed-by-climate-change mammoths-killed-by-climate-change + 1

      die

    ]

    ; finally, all mammoths have a 0.33% chance of dying.

    if random-float 100 < 0.33 [ die ]

Sent from my iPhone

On Nov 3, 2021, at 1:17 AM, jieun kim <jkm...@gmail.com> wrote:

Hello!

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