This function allows a user to specify what proportions of populations in each life-stage disperse. It operates similarly on all cells and in all timesteps throughout a simulation.
A single value or vector of proportions (between zero and one) of individuals in each life stage that disperse - default is 1. If proportions are specified as a single number, then all life-stages disperse with that proportion, however, a vector of proportions (equal in length to the number of life-stages) can also be specified. To prevent stages from dispersing, set corresponding values to zero.
An object of class
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# Example of a proportion function that disperses no population in the first life stage, # 50% of the second, and 90% of the 3rd. ## Not run: prop_dispersal <- set_proportion_dispersing(proportions = c(0, 0.5, 0.9)) kb_dispersal <- kernel_dispersal(dispersal_proportion = prop_dispersal, max_distance = 2000, dispersal_kernel = exponential_dispersal_kernel(distance_decay = 1000)) ls <- landscape(population = egk_pop, suitability = egk_hab, carrying_capacity = egk_k) pd <- population_dynamics(change = growth(egk_mat), dispersal = kb_dispersal) simulation(landscape = ls, population_dynamics = pd, habitat_dynamics = NULL, timesteps = 20) ## End(Not run)
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