popbio (version 2.8)

nematode: Population densities for the sugarbeet cyst nematode

Description

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. .

Usage

nematode

Format

A matrix listing densities from 3 stage classes over 6 time periods

References

Caswell, H. 2001. Matrix population models. Construction, Analysis and interpretation. 2nd ed. Sinauer, Sunderland, Massachusetts.

See Also

QPmat

Examples

nematode
stage.vector.plot(nematode,
  prop = FALSE, log = "y", ylim = c(.3, 200),
  xlab = "Time", ylab = "Nematode density"
)