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rich (version 0.2)

Computes and compares species richnesses

Description

Computes rarefaction curves, cumulated and mean species richness. Compares these estimates by means of randomization tests.

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Version

Install

install.packages('rich')

Monthly Downloads

34

Version

0.2

License

GPL (>= 2)

Maintainer

JeanPierre Rossi

Last Published

March 26th, 2012

Functions in rich (0.2)

c2m

Compares 2 mean values using a randomization test
efeb

Soil macrofauna in a tropical forest site before and after deforestation (traditional slash-and-burn, Elahe, French Guiana)
Tomicus

Maximum temperature at sites hosting 2 species of closely related bark-beetles of genus Tomicus
shared

Computes the number of species shared by groups of sampling units and other useful statistics
ef

Soil macrofauna in a tropical forest site (Elahe, French Guiana)
ea

Soil macrofauna in a tropical field under traditional slash-and-burn (Elahe, French Guiana)
efea

Soil macrofauna in a tropical forest site and cultivated plot (traditional slash-and-burn, Elahe, French Guiana)
raref

Estimates the species richness for a given number of sampled individuals on the basis of the corresponding rarefaction curve
rich

Species richness, their confidence interval and other useful indices
c2cv

Comparison of 2 values of species richness using a randomization procedure
rarc

Computes rarefaction curves
raref2

Estimates the species richness for a given number of sampled individuals on the basis of the corresponding rarefaction curve
c2rcv

Compares the cumulative richness of two communities and rescales the richnesses in function of density