Starting ecosystem; coerced to class census. Usually,
pass an object of class count; see examples. To start
with a monoculture of size 10, use start=rep(1,10) and to
use start=1:10.
prob, prob.of.immigrate, prob.of.mutate
Probability of
“new” organism not being a descendent of an existing
individual
D
Number of organisms that die in each timestep
gens
Number of generations to simulate
keep
In function untb() Boolean with default
FALSE meaning to return the system at the end of the
simulation and TRUE meaning to return a matrix whose rows are
the ecosystem at successive times
meta
In function untb(), the metacommunity; coerced to a
count object. Default of NULL means to use a
“greedy” system in which every mutation gives rise to a new,
previously unencountered species. This would correspond to an
infinitely large, infinitely diverse, Hubbellian ecosystem (which is
not too ridiculous an assumption for a small island near a large
diverse mainland).
In function select.immigrate(), a simplified representation
of a metacommunity.
Author
Robin K. S. Hankin
Details
Functions select.immigrate() and select.mutate() are not
really intended for the end user; they use computationally efficient
(and opaque) integer arithmetic.
References
S. P. Hubbell 2001. “The Unified Neutral Theory of Biodiversity”.
Princeton University Press.