camtrapR

Management and analysis of camera trap wildlife data through an integrated workflow. Provides functions for image/video organization and metadata extraction, species/individual identification. Creates detection histories for occupancy and spatial capture-recapture analyses, with support for multi-season studies. Includes tools for fitting community occupancy models in JAGS and NIMBLE, and an interactive dashboard for survey data visualization and analysis. Features visualization of species distributions and activity patterns, plus export capabilities for GIS and reports. Emphasizes automation and reproducibility while maintaining flexibility for different study designs.

Releases

31

Needs compilation

No

Needs R

>= 4.1.0

Config/roxygen2/version

8.0.0

Date

2026-07-25

SystemRequirements

ExifTool (https://exiftool.org/)

• Package installation and loading

Since March 2026

• checkmate
• crayon
• data.table
• dplyr
• DT
• generics
• ggplot2
• htmltools
• leaflet
• lubridate
• methods
• reshape2
• secr
• sf
• shiny
• shinyBS
• shinydashboard
• shinyjs
• terra
• tibble

Installing it adds

94 packages, 106.7 MB of source

Of those, need compilation

55

• abind
• bayesplot
• callr
• camtrapdp
• coda
• corrplot
• elevatr
• iNEXT
• jsonify
• jsonlite
• knitr
• lattice
• magick
• mapview
• mockery
• nimble
• nimbleEcology
• overlap
• parallel
• patchwork
• pbapply
• plotly
• psych
• R.rsp
• raster
• ritis
• rjags
• rlang
• rmarkdown
• RSQLite
• rstudioapi
• scales
• shinytest2
• shinyWidgets
• stringr
• taxize
• tesseract
• testthat
• ubms
• units
• unmarked
• viridisLite
• withr
• zip

Lines by kind (47,620)

Lines by language

Languages are counted from file extensions.

Files

355

R functions

123

Object systems

S3: 12 methods, S4: 1 classes, S4: 4 generics, S4: 5 methods

Median

8

Mean

24.43

Highest

706

Median lines per function

55

R functions

123

Calls

140

Unconnected

34

Groups

7

Lines counted

17,403

Lines the tests ran

8,043

Tests passed

No

Measured with

covr 3.6.5 on R 4.6.1

Has tests

Yes

Test frameworks

testthat

Test cases

211

Lines of tests

6,826

Test lines per line of code

0.2

• 1. Organising raw camera trap images in camtrapR
• 2. Species and Individual Identification
• 3. Data Extraction from Images and videos, creating occupancy & secr input
• 4. Data exploration and visualisation
• 5. Community occupancy models
• 6. Sample camera trap datasets and the `surveyDashboard`

README

Yes, 475 words

Release notes file

Yes

Help pages

62

Lines of documentation

6,535

• Alexandre Courtiol Rahel Sollmann Andreas Wilting John Mathai Seth Timothy Wong An The Truong Nguyen Azlan bin Mohamed Andrew Tilker

Commits

886

Open pull requests

0

Tagged releases

3

Latest tagged release

camtrapR_v3.1.0, 28 Jul 2026

Issues closed in

50 days (median)

Pull requests closed in

2 days (median)

Pull requests merged

67%

Created

7 Sep 2018

Licence file reads as

–

Method, repository practices

Across jniedballa

New function

• simulateCamtrapData(): simulate camera trap data with custom properties (e.g. for testing, examples and teaching)

New features

surveyDashboard

• new welcome screen (modal dialog) on startup
• new data-quality and convergence warning system, flagging potential problems with input data and model fit (modal dialog and sidebar)
• new date range filter for records
• new instructions for CSV uploads, with links to relevant functions
• stricter validation of CSV uploads: a CRS must now be provided (numeric EPSG codes accepted); uploads abort with an informative modal dialog if the loaded table has only one column (wrong delimiter) or if the camera trap table contains duplicate station/camera combinations
• maximum csv file upload size increased to 500 MB (was 10Mb)
• single-species occupancy: new warning UI, improved printing of model summaries and species names, fitted models can now be exported, unmarkedFrame summary shown in a separate tab
• community occupancy: model file name is now printed in the UI
• added GitHub and Google Group links to the header;
• record preview in the filter section is collapsed by default; various label, tooltip and progress-indicator improvements

Occupancy models

• community occupancy models (commOccu) can now be fitted from JAGS model code stored in the new modelText slot, without an external model file
• createCovariates() now accept plain data frames with coordinates (new arguments xcol, ycol, crs; converted to sf internally)
• consistent terminology: "community models" instead of "multi-species models"

Data import

• the Camtrap DP interface was rewritten throughout and now uses the camtrapdp package for reading data packages
• readcamtrapDP renamed to readCamtrapDP (capitalisation in line with official name)
• more tolerant Camtrap DP import: missing vernacularNames are generated from scientific names and observation type; missing placename falls back to the deployment ID (with a warning); informative error if all timestamps fail to parse
• activity estimation with Camtrap DP data now uses only observations of type "event"

Improved displays and summary functions

• recordTable, recordTableIndividual & filterRecordTable now return an object of class "records" with dedicated print, [, summary, and dplyr_reconstruct methods
• cameraOperation now returns an object of class "camOp" with dedicated print, [, summary, and plot methods
• detectionHistory now returns an object of class "detHist" with dedicated print and [ methods
• readCamtrapDP now returns an object of class "cams_dp" with a dedicated print method
• camera tables contained in readCamtrapDP and simulateCamtrapData outputs are now of class "cams" with a dedicated print method
• internal function stripClass to remove added (S3) class and attributes

Other changes

• new vignette 6 introducing the surveyDashboard (with sample data)
• surveyDashboard: documentation expanded (new section on Bayesian priors, more details on model fitting challenges)
• new package dependencies: camtrapdp, checkmate, crayon, tibble (the latter two now direct rather than indirect dependencies)

Bugfixes

• surveyDashboard:
• fixed several reactivity issues (records not resetting when loading new Camtrap DP data with active filters; number of removed images not updating; broken model selection table)
• fixed error in export of covariate rasters
• assert validity of parameter inputs (prevents opening app when e.g. column names specified wrongly)
• fixed model selection table for ubms 1.2.9
• ubms models now uses 1 core by default (faster than 3 cores for short runs)
• plot_coef(): fixed colors of plot lines by significance level in community model plots
• fixed wrong color ramp being applied to the original rasters in spatial prediction plots
• more robust aggregation of the camera trap table (all columns checked first, clearer error messages)
• fixed ggplot2 warning by replacing ylab() with labs()