ct: Camera Trap Data Management and Multi-Method Ecological Analysis
Tools for the complete camera trap data workflow in wildlife
monitoring and ecological research. Reads and edits media metadata, filters
independent detections, and standardises records for analysis. Measures diel
activity and overlap (Ridout and Linkie (2009) <doi:10.1198/jabes.2009.08038>),
directed short-term association between species with an encounter-response
model (Hawkes (1971) <doi:10.1093/biomet/58.1.83>), seasonal shifts in
activity, spatial coverage of detections, and species diversity. Estimates
density or abundance of unmarked
populations with several methods, including the random encounter model,
camera trap distance sampling, time-to-event, space-to-event, instantaneous
sampling, and the random encounter and staying-time model (see
Rowcliffe et al. (2008) <doi:10.1111/j.1365-2664.2008.01473.x>,
Howe et al. (2017) <doi:10.1111/2041-210X.12790>,
Moeller et al. (2018) <doi:10.1002/ecs2.2331>, and
Nakashima et al. (2018) <doi:10.1111/1365-2664.13059>).
| Version: |
0.5.0 |
| Depends: |
R (≥ 3.5) |
| Imports: |
activity (≥ 1.3.4), dplyr (≥ 1.1.4), camtrapdp, cli (≥
3.6.3), Distance (≥ 2.0.0), ggplot2 (≥ 3.5.2), lubridate, magrittr (≥ 2.0.3), methods, nloptr, overlap (≥ 0.3.9), rlang (≥ 1.1.5), sbd (≥ 0.1.0), tibble, tidyr (≥ 1.3.1), tidyselect, Rcpp (≥ 1.0.8) |
| LinkingTo: |
Rcpp |
| Suggests: |
assertr, iNEXT (≥ 3.0.2), httr2, glmmTMB, kableExtra (≥
1.4.0), knitr (≥ 1.50), leaflet (≥ 2.2.2), lme4, MASS, MCMCvis, msm, nimble, coda, progress, rmarkdown, sf, shiny (≥
1.10.0), terra, testthat (≥ 3.0.0), vegan (≥ 2.6-6.1), xml2 |
| Published: |
2026-10-21 |
| DOI: |
10.32614/CRAN.package.ct |
| Author: |
Stanislas Mahussi Gandaho
 [aut, cre],
Pablo Palencia
[ctb, rev],
R Consortium [fnd] |
| Maintainer: |
Stanislas Mahussi Gandaho <stangandaho at gmail.com> |
| BugReports: |
https://github.com/stangandaho/ct/issues |
| License: |
MIT + file LICENSE |
| URL: |
https://stangandaho.github.io/ct/ |
| NeedsCompilation: |
yes |
| Materials: |
README, NEWS |
| CRAN checks: |
ct results |
Documentation:
Downloads:
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