Metapopulation Capacity
Description
Metapopulation capacity is the ability of the landscape to sustain a metapopulation.
Usage
1 2 3 
Arguments
d 
Distances among patches 
A 
Sizes of patches 
alpha 
Decay parameter of the exponential connectivity equation 
x 

locations 
Locations of patches. If missing, the locations are found from metric scaling of distances. 
cex 
Character expansion factor for the largest dot; the other dots are scared proportional to the patch area. 
... 
=ther parameters to the functions 
Details
Metapopulation capacity is defined as the largest eigenvalue of matrix with nondiagonal elements A_i \exp(α d_{ij} A_j and zero diagonal.
Value
Function returns a list of class "metacapa"
with following items:
capacity 
Metapopulation capacity 
x 
contributions of patches to the metapopulation capacity 
d 
distances among patches 
A 
size of patches 
Author(s)
Jari Oksanen
References
Hanski, I. & Ovaskainen, O. 2000. The metapopulation capacity of fragmented landscape. Nature 404: 755–758.
See Also
nothing yet
Examples
1 2 3 4 5 