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PWRC Software Archive

The following programs were developed at PWRC and elsewhere for the analysis of animal populations for wildlife biologists/managers.

BAND2Computes the number of animals that must be banded in order to achieve a specified level of precision for survival rates estimated using band recovery models.
BROWNIEComputes estimates of survival and recovery rates for 2-age class band-recovery data.
CAPQUOTAComputes expected coefficients of variation of survival and capture probability for use in the design of capture-recapture-resighting experiments.
CAPTUREComputes estimates of capture probability and population size for "closed" population capture-recapture data.
CENTROIDTests the null hypothesis that two samples of recoveries belong to the same bivariate distribution.
COMDYNComputes estimates of species richness using large scale data.
CONTRASTCompares estimates of survival (or any normally distributed parameter estimates).
CountRemovalA removal model for estimating detection probabilities from point count surveys.
DISTANCEAllows design and analysis of distance sampling surveys to estimate density and abundance of a population.
DOSECOMPAnalyzes dose responses for two populations, using the PROBIT model and the abbreviated protocol as described by Link et al(1996).
DOBSERVA Double-observer approach for estimating detection probability and abundance from avian point counts as described in Nichols et. al. (2000).
ECOSRCHECOSEARCH was developed as a first step to a testable, scientific basis for ecosystem management.
ESTIMATEComputes estimates of survival and recovery rates for 1-age class band-recovery data.
fatalityCMRnew Estimates fatalities using raw counts of wildlife fatalities, trial experiments for carcass detection probability and persistence time.
GENCAPH1Generates capture-history data for given s,theta,p,c.
GENPRESnewGenerates patch-occupancy data and analyzes using MARK.
JOLLYComputes estimates of survival and capture probability for 1-age class open population capture-recapture models.
JOLLYAGEComputes estimates of survival and capture probability for 2-age class open population capture-recapture models.
LOLASURVIVComputes estimates of survival and capture probability for open capture-recapture models when sex is not allways known.
MARKProgram MARK, provides parameter estimates from marked animals when they are re-encountered at a later time. Click here to go to the MARK page.
MAYFIELDComputes estimates of daily survival rate for nest visitation data.
MSSURVIVComputes estimates of survival-movement and capture probability for open capture-recapture models.
MSSRVRD(BETA) replacement for MSSURVIV, RDSURV - Combines multi-strata, robust-design and trap-deaths.
MSSRVRCVComputes survival-movement, capture and recovery probabilities from multi-strata capture-recapture-recovery data.
MSSRVMISComputes estimates of survival and capture probability adjusted for missclassification.
MULTComputes estimates of survival and recovery rates for band-recovery data with additional models for estimating reporting rate.
nestAbundnew Estimates abundance of nests using a capture-recapture approach which deals with imperfect detection probability as well as the impact of environmental and individual covariates on nest fate.
ORDSURVIVnewComputes estimates of survival and temporary emigration under the "Open Robust Design".
POWERComputes the power of between-model likelihood ratio tests.
PRESENCEnew Estimates patch occupancy rates and related parameters.
RDSURVIVComputes estimates of survival and capture probability using capture-recapture data with "robust-design" models and recoveries.
RELEASEComputes estimates of survival and capture probability for capture-recapture experiments on open animal populations.
SCATMANTests the hypothesis of prey-selectivity based on random samples of predator scats.
SCRbayesSpatial Capture-Recapture analysis using bayesian methods.
SPACECAPnew Estimates Animal Abundance and Density using Spatially-Explicit Capture-Recapture.
SPECRICHComputes "species richness" or total number of species from emperical species abundance distribution data.
SPECRICH2Estimates the total number of species from species presence-absence data on multiple sample sites or occasions using model M(h) from program CAPTURE.
SURVIVComputes estimates of survival (or any model parameter) with multinomially distributed data.
TMSURVIVComputes estimates of survival and capture probability and the proportion of transients in open population capture-recapture data.
virttrapInstructional tool simulating a capture-recapture experiment.

Other www sites with wildlife-related software:

This list is maintained by:
Jim Hines e-mail icon
Patuxent Wildlife Research Center
12100 Beech Forest Rd
Laurel, Md 20708-4030                   Last updated: 27-July-2011