percent_cover = 25 (25% of the ground is covered by a potential nurse plant) n_seeds = 15 (starting with 15 young cacti) p_survival_no_nurse = 10 (10% chance of young cactus survival with no nurse plant.) p_survival_with_nurse = 70 (70% chance of survival with a nurse plant.) density_dependence? should be checked. What is the fraction of cacti WITHOUT a nurse plant at the 200 tick mark after the latest simulation?
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If the null nurse plant hypothesis is correct, predict how the proportion of young cacti with nurse plants will compare to the amount of available shade.
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