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 maximal.abundance()
returns the abundance of the most
abundant 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.