negative_exponential_function

Build spatially and temporally explicit
process-based species distribution models, that can include an arbitrary
number of environmental factors, species and processes including metabolic
constraints and species interactions. The focus of the package is simulating
populations of one or multiple species in a grid-based landscape and studying
the meta-population dynamics and emergent patterns that arise from the
interaction of species under complex environmental conditions. It
provides functions for common ecological processes such as
negative exponential, kernel-based dispersal (see
Nathan et al. (2012) <doi:10.1093/acprof:oso/9780199608898.003.0015>),
calculation of the environmental suitability based on cardinal values (
Yin et al. (1995) <doi:10.1016/0168-1923(95)02236-Q>, simplified by
Yan and Hunt (1999) <doi:10.1006/anbo.1999.0955> see eq: 4), reproduction in
form of an Ricker model (see Ricker (1954) <doi:10.1139/f54-039> and
Cabral and Schurr (2010) <doi:10.1111/j.1466-8238.2009.00492.x>),
as well as metabolic scaling based on the metabolic theory of ecology
(see Brown et al. (2004) <doi:10.1890/03-9000> and
Brown, Sibly and Kodric-Brown (2012)
<doi:10.1002/9781119968535.ch>).

Stefan Fallert

metaRange

Framework to Build Mechanistic and Metabolic Constrained Species
Distribution Models

Lea Li

Juliano Sarmento Cabral

Tyler Morgan-Wall

Bavarian Ministry of Science and Arts (bayklif) 

Deutsche Bundesstiftung Umwelt (DBU) 

negative_exponential_function function

<dl><dt>x</dt>
<dd><code>&lt;numeric&gt;</code> distance at which the probability is calculated.</dd>
<dt>mean_dispersal_dist</dt>
<dd><code>&lt;numeric&gt;</code> mean dispersal distance (&gt;0)</dd></dl>

Arguments

Negative Exponential kernel — negative_exponential_function

<dl>

<dt>x</dt>
<dd><code>&lt;numeric&gt;</code> distance at which the probability is calculated.</dd>


<dt>mean_dispersal_dist</dt>
<dd><code>&lt;numeric&gt;</code> mean dispersal distance (&gt;0)</dd>

</dl>

Negative Exponential kernel

negative_exponential_function: Negative Exponential kernel

Description

Usage

Value

Arguments

Details

References

Examples