| monkeyflower {popbio} | R Documentation |
Pooled and annual projection matrices of central and marginal populations of monkeyflowers (Mimulus cardinalis and M. lewisii)
data(monkeyflower)
A data frame with 32 projection matrices, arranged with one matrix per row
speciessiteyeara11a12a13a14a21a22a23a24a31a32a33a34a41a42a43a44Matrix constructed using a post-breeding census with four stage classes: Seeds, small non-reproductive, large non-reproductive, and reproductive.
http://www.esapubs.org/archive/ecol/E087/126/appendix-E.htm
Amy Lauren Angert. 2006. Demography of central and marginal populations of monkeyflowers (Mimulus cardinalis and M. lewisii). Ecology 87:2014-2025.
data(monkeyflower)
A <- subset(monkeyflower,
species=="cardinalis" & site=="Carlon" & year=="pooled",
select=c(4:19))
stages<-c("seed", "sm.nr", "lg.nr", "repro")
A <- matrix(unlist(A), nrow=4, byrow=TRUE, dimnames=list(stages, stages) )
A
eigen.analysis(A)
## mean matrix growth rate
eigen.analysis(matrix(apply(monkeyflower[,4:19], 2, mean), nrow=4))$lambda