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asbio (version 1.3-1)

simberloff: Compilations of genus and species counts from Simberloff (1970)

Description

A compilation of taxonomic (species and genus) counts for a wide array of organism groups for island and associated mainland locations. Taken from Simberloff (1970).

Usage

data("simberloff")

Arguments

Format

A data frame with 204 observations on the following 12 variables.
Location
Island and mainland location.
Designation
A factor with levels Island Mainland.
Hypothesized.source
Hypothesized mainland location for particular island location.
No.spp.
The number of species
Obs.S.G
Observed species/genus (S/G) ratio
E.S.G.
Expected S/G ratio, based on random sampling from mainland pool of species.
prop..obs..cogeners
The proportion of observed cogeners, only reported for bird species.
prop..exp..cogeners
The proportion of expected cogeners based on raindom sampling from the associated mainland pool of species, only reported for bird species.
Authority
Sourc of infomration for compilation,
Life.form
A factor with levels Ants Land birds Passerine birds Vascular plants.
Notes.1
Notes from Simberloff (1970)
Notes.2
Additional notes from Simberloff (1970)

Source

Simberloff, D. (1970) Taxonomic diversity of island biotas. Evolution 24, 23-47.