asymmetric.competition.kernel {comsimitv}

Asymmetric competition kernels

Description

It calculates asymmetric competition coefficients

Usage

asymmetric.competition.kernel(
  trait.values,
  trait.compet = "trait.b",
  ac.type = c("Kisdi", "Nattrass"),
  sigma.b = 0.03,
  ac.C = 1,
  ac.v = 1,
  ...
)

Arguments

trait.values

Dataframe of all traits

trait.compet

Name of trait related to resource use

ac.type

Type of the function (see vignette("competition"))

sigma.b

steepness of competition kernel

ac.C

parameter influencing shape of the function (has to be positive)

ac.v

parameter influencing shape of the function (has to be positive)

...

Any additional parameters

Details

Depending on value of ac.type the convex-concave function from Kisdi (1999) or smooth function suggested by Nattrass et al (2012) are used.

For formulas and meaning of parameters see the vignette("competition")

References

Kisdi, E. (1999) Evolutionary Branching under Asymmetric Competition Journal of Theoretical Biology 197(2): 149-162. doi: 10.1006/jtbi.1998.0864

Nattrass, S., Baigent, S., & Murrell, D. J. (2012) Quantifying the Likelihood of Co-existence for Communities with Asymmetric Competition. Bulletin of Mathematical Biology, 74(10): 2315–2338. doi: 10.1007/s11538-012-9755-8

See Also

competition.kernel