beta_16 {devRate}R Documentation

Beta2 equation of development rate as a function of temperature.

Description

Yin, X., Kropff, M.J., McLaren, G., and Visperas, R.M. (1995) A nonlinear model for crop development as a function of temperature. Agricultural and Forest Meteorology 77(1): 1-16.

Shi, P. J., Chen, L., Hui, C., & Grissino-Mayer, H. D. (2016). Capture the time when plants reach their maximum body size by using the beta sigmoid growth equation. Ecological Modelling, 320, 177-181.

Shi, P. J., Reddy, G. V., Chen, L., and Ge, F. (2015). Comparison of thermal performance equations in describing temperature-dependent developmental rates of insects: (I) empirical models. Annals of the Entomological Society of America, 109(2), 211-215.

Usage

beta_16

Format

A list of eight elements describing the equation.

eq

The equation (formula object).

eqAlt

The equation (string).

name

The name of the equation.

ref

The equation reference.

refShort

The equation reference shortened.

startVal

The parameters found in the literature with their references.

com

An optional comment about the equation use.

id

An id to identify the equation.

Details

Equation:

rT = rm * (\frac{T2 - T}/{T2 - Tm}) * (\frac{T - T1}/{Tm - T1})^{\frac{Tm - T1}/{T2 - Tm}}

where rT is the development rate, T the temperature, T1, T2, and Tm the model parameters.

References

doi:10.1016/j.ecolmodel.2015.09.012


[Package devRate version 0.2.4 Index]