secr: Spatially Explicit Capture-Recapture

Functions to estimate the density and size of a spatially distributed animal population sampled with an array of passive detectors, such as traps, or by searching polygons or transects. Models incorporating distance-dependent detection are fitted by maximizing the likelihood. Tools are included for data manipulation and model selection.

Version: 2.9.5
Depends: R (≥ 3.0.0), methods
Imports: abind, MASS, utils, parallel, nlme, sp, mgcv, raster
Suggests: maptools, spsurvey, rgdal, rgeos, knitr, gdistance
Published: 2015-06-16
Author: Murray Efford
Maintainer: Murray Efford <murray.efford at>
License: GPL-2 | GPL-3 [expanded from: GPL (≥ 2)]
NeedsCompilation: yes
Citation: secr citation info
Materials: NEWS
In views: Environmetrics
CRAN checks: secr results


Reference manual: secr.pdf
Vignettes: Data input for secr
Spatially explicit capture–recapture in R
Package source: secr_2.9.5.tar.gz
Windows binaries: r-devel:, r-release:, r-oldrel:
OS X Snow Leopard binaries: r-release: secr_2.9.5.tgz, r-oldrel: secr_2.9.4.tgz
OS X Mavericks binaries: r-release: secr_2.9.5.tgz
Old sources: secr archive

Reverse dependencies:

Reverse depends: BBRecapture, secrdesign, secrlinear
Reverse imports: SpaDES