pam2bioindex

pam2bioindex estimates various biodiversity indices for a
certain PAM.

Species Distribution Modeling (SDM) is a practical
methodology that aims to estimate the area of distribution of a
species. However, most of the work has focused on estimating static
expressions of the correlation between environmental variables. The
outputs of correlative species distribution models can be interpreted
as maps of the suitable environment for a species but not generally as
maps of its actual distribution. Soberón and Peterson (2005)
<doi:10.17161/bi.v2i0.4> presented the BAM scheme, a heuristic
framework that states that the occupied area of a species occurs on
sites that have been accessible through dispersal (M) and have both
favorable biotic (B) and abiotic conditions (A). The 'bamm' package
implements classes and functions to operate on each element of the BAM
and by using a cellular automata model where the occupied area of a
species at time t is estimated by the multiplication of three binary
matrices: one matrix represents movements (M), another abiotic -niche-
tolerances (A), and a third, biotic interactions (B). The theoretical
background of the package can be found in Soberón and Osorio-Olvera
(2023) <doi:10.1111/jbi.14587>.

Luis Osorio-Olvera

bamm

Species Distribution Models as a Function of Biotic, Abiotic and
Movement Factors (BAM)

Jorge Soberón

Rusby G. Contreras-Díaz

pam2bioindex function

<dl><dt>pam</dt>
<dd>A Presence-Absence-Matrix of matrix class or sparse matrix.</dd>
<dt>biodiv_index</dt>
<dd>Possible values are alpha, omega,
wbeta (Whittaker’s multiplicative beta index),
laBeta (Lande’s additive beta index)
dispersion_field, all.</dd>
<dt>as_sparse</dt>
<dd>Return indices as sparse objects</dd></dl>

Arguments

Luis Osorio-Olvera &amp; Jorge Soberón

Author

pam2bioindex: PAM to biodiversity index — pam2bioindex

<dl>

<dt>pam</dt>
<dd>A Presence-Absence-Matrix of matrix class or sparse matrix.</dd>


<dt>biodiv_index</dt>
<dd>Possible values are alpha, omega,
wbeta (Whittaker’s multiplicative beta index),
laBeta (Lande’s additive beta index)
dispersion_field, all.</dd>


<dt>as_sparse</dt>
<dd>Return indices as sparse objects</dd>

</dl>

pam2bioindex: pam2bioindex: PAM to biodiversity index

Description

Usage

Value

Arguments

Author

Details

References

Examples