fnBiogeographyRateMatrix
| dispersalRates : | RealPos[][] (pass by const reference) |
| Matrix of dispersal rates between areas. | |
| extirpationRates : | RealPos[] (pass by const reference) |
| Matrix of extirpation rates. | |
| maxRangeSize : | Natural (pass by value) |
| Maximum range size. | |
| Default : 0 |