nematode {popbio} | R Documentation |
A time-series of population vectors for the sugarbeet cyst nematode Heterodera schachtii. Individuals were classified into three stages (J2, J3+J4, and adult) and densities (per 60 cc of soil) were averaged over four replicates, measured every two days, for 10 days. .
data(nematode)
A matrix listing densities from 3 stage classes over 6 time periods
Used in Example 6.3 in Caswell (2001).
Caswell, H. 2001. Matrix population models. Construction, Analysis and interpretation. 2nd ed. Sinauer, Sunderland, Massachusetts.
data(nematode) stage.vector.plot(nematode, prop=FALSE, log='y', ylim=c(.3,200), xlab="Time", ylab="Nematode density")