nematode {popbio}

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

Source

Example 6.3 in Caswell (2001).

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"
)