model.phenips.apply {barrks}R Documentation

Use PHENIPS

Description

This page describes the usage of PHENIPS with phenology(). The model specific inputs are listed and its basic functionality is explained. PHENIPS was published by Baier et al. (2007) and parametrized at the Kalkalpen National Park in Austria for Ips typographus.

Arguments

...

See phenology() for a detailled description of the function.

tmean, tmax

Daily mean/maximum temperatures in °C.

rad

Daily radiation in W * h / m^2.

daylength

Length of the day in hours. Can be created with create_daylength_rst() or create_daylength_df().

exposure

Specifies the sun exposure. Can be 'sunny' (default) or 'shaded'.

sister_broods

Set FALSE if sister broods should not be calculated.

Details

In barrks, phenology() is used to apply a model. The following code illustrates which inputs are required to apply PHENIPS and which additional parameters are available.

phenology("phenips", ..., tmean, tmax, rad, daylength,
          exposure = 'sunny', sister_broods = TRUE)

# calculate submodels separately
phenology("phenips", ..., .submodels = 'onset', tmax)
phenology("phenips", ..., .submodels = 'diapause', daylength)
phenology("phenips", ..., .submodels = 'mortality', tmax)
phenology("phenips", ..., .submodels = 'development',
          .onset, .diapause = NULL, .mortality = NULL,
          tmean, tmax, rad,
          exposure = 'sunny', sister_broods = TRUE)

Value

The function returns a phenology. Look here to find out how it can be analysed.

Functioning

In the following, the basic functioning of PHENIPS is explained.

Look here to find out how the model parameters affect the actual calculations and which values are used by default.

References

Baier P, Pennerstorfer J, Schopf A (2007). “PHENIPS—A comprehensive phenology model of Ips typographus (L.)(Col., Scolytinae) as a tool for hazard rating of bark beetle infestation.” Forest Ecology and Management, 249(3), 171–186. doi:10.1016/j.foreco.2007.05.020.

Wermelinger B, Seifert M (1998). “Analysis of the temperature dependent development of the spruce bark beetle Ips typographus (L) (Col., Scolytidae).” Journal of Applied Entomology, 122(1-5), 185-191. doi:10.1111/j.1439-0418.1998.tb01482.x.

See Also

model(), phenology(), model.phenips.customize

Other phenology applications: model.bso.apply, model.chapy.apply, model.joensson.apply, model.lange.apply, model.phenips_clim.apply, model.rity.apply


[Package barrks version 1.1.1 Index]