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devRate package

Purpose of the package

The devRate package allows quantifying the relationship between development rate and temperature in ectotherm organisms, and model species phenology using an individual-based approach.

How to use the package

You can use the package:

  1. to get development rate curves as a function of temperature for a specific organism (hundred of examples from the literature are included in the package);

  2. to know which equations exists and which are most used in the literature; and

  3. to relate development rate with temperature from your empirical data, using the equations from the package database.

  4. to make phenology simulations using temperature time series and thermal performance curves.

Installation instructions

# from CRAN
install.packages("devRate")

# Or the development version from GitHub:
# install.packages("devtools")
devtools::install_github("frareb/devRate")

Overview

The devRate package provides four categories of functions:

  1. functions to find development rate information about a specific organism (Order, Family, Genus, species)

  2. functions to relate development rate and temperature, and

  3. functions to plot your empirical datasets and the associated fitted model, and/or to plot development curves from the literature.

  4. functions to perform simulations from models and temperature time series.

Author’s affiliation

UMR EGCE (IRD, CNRS, Univ. Paris-Saclay), Gif-sur-Yvette, France

To cite this package please use:

citation("devRate") 
#> To cite package 'devRate' in publications use:
#> 
#>   Rebaudo F, Regnier B (2025). _devRate: Quantify the Relationship
#>   Between Development Rate and Temperature in Ectotherms_. R package
#>   version 0.2.6, <https://CRAN.R-project.org/package=devRate>.
#> 
#> A BibTeX entry for LaTeX users is
#> 
#>   @Manual{,
#>     title = {devRate: Quantify the Relationship Between Development Rate and Temperature in Ectotherms},
#>     author = {Francois Rebaudo and Baptiste Regnier},
#>     year = {2025},
#>     note = {R package version 0.2.6},
#>     url = {https://CRAN.R-project.org/package=devRate},
#>   }

and/or: Rebaudo F., Struelens Q., Dangles O. Modelling temperature-dependent development rate and phenology in arthropods: The devRate package for R. Methods Ecol Evol. 2017;00:1-7.

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Version

Install

install.packages('devRate')

Monthly Downloads

375

Version

0.2.6

License

GPL-2

Issues

Pull Requests

Stars

Forks

Maintainer

Rebaudo Francois

Last Published

October 28th, 2025

Functions in devRate (0.2.6)

devRateIBMparam

Forecast ectotherm phenology as a function of temperature and development rate models using known parameters
devRateIBMgen

Number of generations
devRateModel

Compute non-linear regression
devRateEqStartVal

Default starting values for each equation listed in the devRateEqList object.
devRateInfo

Display information about an equation
devRateIBMPlot

Plot phenology table
ha_mironidis2008_nls

Mironidis and Savopoulou-Soultani non-linear Lactin-2 thermal performance curve for the development of Helicoverpa armigera
devRateMap

Predict development rate from a matrix of temperatures
ha_mironidis2008_ls

Mironidis and Savopoulou-Soultani linear thermal performance curve for the development of Helicoverpa armigera
ha_jallow2001

Jallow and Matsumura linear thermal performance curve for the development of Helicoverpa armigera
devRateModelAll

Fitting all models listed in devRateEqList to a development rate dataset
ha_foley1981

Foley linear thermal performance curve for the post-diapausing and non-diapausing pupae development of Helicoverpa armigera
devRatePlotInfo

Plot thermal performance curves from the literature
damos_11

Inverse second-order polynomial equation of development rate as a function of temperature.
devRatePlot

Plot the empirical points and the regression
lamb_92

Lamb equation of development rate as a function of temperature.
ha_ahmad2024_ls

Ahmad linear thermal performance curve for the development of Helicoverpa armigera
damos_08

Simplified beta type equation of development rate as a function of temperature.
hilbertLogan_83

Holling type III equation of development rate as a function of temperature.
lactin2_95

Lactin et al. equation 2 of development rate as a function of temperature.
poly2

Second-order polynomial equation of development rate as a function of temperature.
janisch_32

Janisch equation of development rate as a function of temperature (Analytis modification).
devRatePrint

Report model output from the NLS fit
devRateIBMdataBase

Forecast ectotherm phenology as a function of temperature and development rate models available in the package database
perf2_11

Performance-2 equation of development rate as a function of temperature.
ha_bartekova2006

Bartekova and Praslicka linear thermal performance curve for the developmentof Helicoverpa armigera
ha_noorulane2018_nls

Noor-ul-Ane et al. non-linear thermal performance curve for the development of Helicoverpa armigera
ha_noorulane2018_ls

Noor-ul-Ane et al. linear thermal performance curve for the development of Helicoverpa armigera
ha_kay1981_ls

Kay linear thermal performance curve for the egg development of Helicoverpa armigera
ha_kay1981_nls

Kay non-linear Davidson thermal performance curve for the egg development of Helicoverpa armigera
poly4

Fourth-order polynomial equation of development rate as a function of temperature.
ratkowsky_82

Ratkowsky equation of development rate as a function of temperature (Shi modification).
kontodimas_04

Kontodimas et al. equation of development rate as a function of temperature.
schoolfieldLow_81

Schoolfield et al. equation of development rate as a function of temperature for intermediate to low temperatures only.
logan10_76

Logan et al. equation 10 of development rate as a function of temperature.
logan6_76

Logan et al. equation 6 of development rate as a function of temperature.
sharpeDeMichele_77

Sharpe and DeMichele equation of development rate as a function of temperature.
lactin1_95

Lactin et al. equation 1 of development rate as a function of temperature.
regniere_12

Regniere equation of development rate as a function of temperature.
wangengel_98

Wang and Engel equation of development rate as a function of temperature.
ratkowsky_83

Ratkowsky equation of development rate as a function of temperature (Shi 2016 modification).
stinner_74

Stinner et al equation of development rate as a function of temperature.
taylor_81

Taylor equation of development rate as a function of temperature.
shi_11

Shi equation of development rate as a function of temperature.
devRateQlBio

Biological likelihood of nls fits
devRateQlStat

Statistical indices of the nls goodness-of-fit
exTropicalMoth

Tropical moth development rate at constant temperatures.
ha_qureshi1999_ls

Qureshi et al. linear thermal performance curve for the development of Helicoverpa armigera
rootsq_82

Root square equation of development rate as a function of temperature.
wagner_88

Hagstrum et Milliken equation of development rate as a function of temperature retrieved from Wagner 1984.
schoolfieldHigh_81

Schoolfield et al. equation of development rate as a function of temperature for intermediate to high temperatures only.
harcourtYee_82

Harcourt and Yee equation of development rate as a function of temperature.
wang_82

Wang et al. equation of development rate as a function of temperature.
schoolfield_81

Schoolfield et al. equation of development rate as a function of temperature.
analytis_77

Analytis equation of development rate as a function of temperature.
dRGetMetrics

Life traits from Thermal Performance Curve
dRGetMetricsInfo

Life traits from the ectotherm database
devRateFind

Find models for species
devRate

devRate: A package to quantify the relationship between development rate and temperature in ectotherms.
devRateIBM

Forecast ectotherm phenology as a function of temperature and development rate models
briere1_99

Briere et al equation 1 of development rate as a function of temperature.
campbell_74

Campbell et al. equation of development rate as a function of temperature.
davidson_44

Davidson equation of development rate as a function of temperature.
briere2_99

Briere et al equation 2 of development rate as a function of temperature.
bayoh_03

Bayoh and Lindsay equation of development rate as a function of temperature.
beta_95

Beta equation of development rate as a function of temperature.
beta_16

Beta2 equation of development rate as a function of temperature.
bieri1_83

Bieri equation 1 of development rate as a function of temperature.
devRateEqList

The list of all available equations of development rate as a function of temperature.