Description Usage Arguments Value Author(s) References See Also Examples

Simulates island biogeographical models, with rates of colonization and extinction for islands of different sizes and distances to the mainland.

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`area` |
a vector with the sizes of the island areas. It must have the same length as 'dist' |

`dist` |
a vector with the distances of the islands to the mainland. It must have the same length as 'areas' |

`P` |
the number of species in the mainland (species richness of the pool). |

`weight.A` |
ratio between the area and distance effects. Should be a number between 0 to 1. When the ration is 1 the extinction is only affected by size and colonization only by distance. The default ratio is 0.5, meaning that distance and size equally influence colonization and extinction. |

`a.e` |
basal extiction coefficient for area. |

`b.e` |
extinction/area coefficient. |

`c.i` |
basal colonization coefficient for distance. |

`d.i` |
numeric, colonization/distance coefficient. |

`e.i` |
basal colonization coefficient for area. |

`f.i` |
colonization/area coefficient. |

`g.e` |
basal extinction coefficient for distance. |

`h.e` |
extinction/distance coefficient. |

'bioGeoIsl' returns a graph with the rates of colonization and extinction in relation with the species richness for each island.

'bioGeoIsl' also returns a invisible data frame with the values for area, distance and species richness (S) for each island.

Alexandre Adalardo de Oliveira ecovirtualpackage@gmail.com

Gotelli, N.J. 2008. A primer of Ecology. 4th ed. Sinauer Associates, 291pp.

`animaColExt`

`archip`

,
http://ecovirtual.ib.usp.br

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