Function no.of.spp()
returns the number of species in an
ecosystem object, treating exctinct species in line with argument
include.extinct
. Function no.of.ind()
returns the number of individuals.
Function no.of.singletons()
returns the number of singletons.
Function no.of.extinct()
returns the number of extinct species.
Function singletons()
returns a count
object containing
only the singletons: each abundance is one.
Function extinct()
returns a count
object containing
only the extinct species: each abundance is zero.
Function extant()
returns a count
object containing
only the extant species: each abundance is greater than zero.