Description Usage Arguments Value Note References See Also Examples
Extract population details from RAMAS Metapop .mp files.
1 | meta(mp)
|
mp |
A character string containing the path to a RAMAS Metapop .mp file containing simulation results. Metapop .mp files are plain text files that store settings describing RAMAS metapopulation models, and the results of simulating population dynamics according to those models. |
A data.frame
containing one row per population, with columns:
popName |
The name of the population. |
xMetapop, yMetapop |
The spatial
coordinates of the population centroid, in RAMAS's coordinate system (see
|
initN |
The initial abundance. |
ddType |
The density dependence type. |
Rmax |
The maximum growth rate. |
K |
The initial carrying capacity. |
Ksd |
The standard deviation in K, if applicable. |
allee |
The allee parameter, if applicable. |
kch |
A constant, or reference to a .kch file describing temporal change in K. |
ddDispSourcePopN |
The parameter indicating the effect of source population abundance on its dispersal rate. |
cat1LocalMulti |
The local multiplier for probablity of Catastrophe 1, if applicable. |
cat1LocalProb |
The local probability of Catastrophe 1, if applicable. |
includeInTotal |
Indicates whether abundance of this population is included in totals reported in simulation results. |
stageMatrix |
The name of the stage matrix in use by the population. |
relFec |
The mean fecundity of this population, relative to those given in the stage matrix. |
relSurv |
The mean survival rates of this population, relative to those given in the stage matrix. |
localThr |
The abundance threshold below which the population might be considered dead (depending on global options specified elsewhere). |
cat2LocalMulti |
The local multiplier for probability of Catastrophe 2, if applicable. |
cat2LocalProb |
The local probablity of Catastrophe 2, if applicable. |
sdMatrix |
The name of the standard deviation matrix in use. |
ddDispTargetPopK |
The target population K below which dispersal out of this population is reduced. |
tSinceCat1 |
The number of time steps since this population last experienced Catastrophe 1. |
tSinceCat2 |
The number of time steps since this population last experienced Catastrophe 2. |
relDisp |
Dispersal rates of this population relative to those specified by the global dispersal matrix/function. |
relVarFec |
Variation in fecundity rates of this population, relative to those given in the standard deviation matrix. |
relVarSurv |
Variation in survival rates of this population, relative to those given in the standard deviation matrix. |
mptools
has been tested with outputs generated by RAMAS Metapop
version 5, and may produce unexpected results for other versions. A warning
is issued if the user attempts to access files originating from other
versions of RAMAS Metapop.
Akcakaya, H. R., Burgman, M. A., Kindvall, O., Wood, C. C., Sjogren-Gulve, P., Hatfield, J. S., & McCarthy, M. A. (2004). Species Conservation and Management: Case Studies. New York: Oxford University Press.
1 2 3 | mp <- system.file('example.mp', package='mptools')
res <- meta(mp)
head(res)
|
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