CAPQUOTA Software

CAPTURE

Computes estimates of capture probability and population size for 'closed' population capture-recapture data.

White, G.C., K.P. Burnham, D.L. Otis, and D.R. Anderson. 1978. Users Manual for Program CAPTURE, Utah State Univ. Press, Logan, Utah.
Otis, D. L., K. P. Burnham, G. C. White, and D. R. Anderson. 1978. Statistical inference from capture data on closed animal populations. Wildlife Monographs 62. 135 pp.
White, G. C., D. R. Anderson, K. P. Burnham, and D. L. Otis. 1982. Capture-recapture and removal methods for sampling closed populations. Los Alamos National Laboratory LA-8787-NERP. 235 pp.
Rexstad, E., and K.P. Burnham. 1991. Users Guide for Interactive Program CAPTURE. Colorado Cooperative Fish & Wildlife Research Unit, Colorado State University, Fort Collins, Colorado.

Download Windows program and user's manual

^aTo download a PDF reader, visit http://get.adobe.com/reader.

Run CAPTURE online

You can enter text in the box below, or click on one of the example code blocks. The input text should look like one of these examples:

If you find this program useful, an email (to jhines@usgs.gov) with the species you're working on would be wonderful.

Note: If you've used an older version of CAPTURE in the past (online or locally), you may need to modify the input. This version expects input fields to be separated by a single space and the FORMAT statement is not needed.

example 1

title='Examples for Otis et al., 1978, Wildlife Monograph 62'
task read population null 
5,238,98,'Simulated data under model M(o)'

example 2

title='richness of area-sensitive spp, point HPB18 '
task read captures occasions=3 x matrix
read input data
ACFL 100
BAWW 101
EAWP 001
OVEN 011
RBWO 100
REVI 100
RSHA 010
SCTA 101
WBNU 010
WOTH 011
task closure test
task model selection
task population estimate appropriate

example 3

task read population null
5,224,87,'data from table 4.1, page 135, Seber (1973) (data:t,n.,M(t+1))'

example 4

task read population  removal 
5,'Ephemeroptera, stream insect. (data:u1,u2,u3,u4,u5)'
181,11,4,5,3

example 5

task read population jackknife
11,'data from table 4.17, pg 173. (data:f1,f2,f3,f4,f5)'
23,14,9,6,8,7,3,0,2

example 6

task read population darroch
5,87,'DATA FROM TABLE 4.1, PAGE 135, SEBER (1973) (data:M(t+1),n1,n2,n3,n4,n5)'
32,54,37,60,41

example 7

task read population zippen
10,'DATA FROM TABLE 4.9, PG 156, SEBER (1973) (data:u1,u2,u3,u4,u5)'
10,10,8,9,7,6,5,4,7,5

Simulation examples

task simulate population=150 seed=4119453 replications=50 occasions=10
heterogeneity=50,0.5,65,0.3,35,0.1

task simulate seed=4491935 population=200 occasions=10 replications=100
heterogeneity=100,0.5,100,0.3
behavior=200,1.5

task simulate seed=4491935 population=200 occasions=4 replications=50
time=0.9,0.8,0.9,0.8
heterogeneity=100,0.9,100,0.5
behavior=50,beta(0.75,.8,0,1),50,1.3,50,0.75,50,beta(1.3,1.1,0,2)

model number	model name	alias
1	m0	null
2	mh	jackknife
3	mb	zippen
4	mbh	romoval
5	mt	darroch
6	mth	mth-chao
7	mtb	mtb-burnham
8	mt-chao
9	mh-chao
10	mbh-pollock

Enter input below:

Note: Some models do not work with sparse data. If you aren't getting a response, try running each model separately instead of doing ALL models. (eg. task population estimate NULL)

If you find this application useful, a short email to jhines@usgs.gov with the species analyzed would be awesome!

Output below will be copied to the clipboard.

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