Results 241 to 250 of about 3,232,780 (292)

Mark—recapture experiments

1985
Mark—recapture methods were originally developed for estimating the size of mobile animal populations. However, it was soon recognized that the same methods could be used for estimating survival rates in the wild. It was then a short step to using the same approach for comparing the survival rates of different morphs in a polymorphic population.
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Variances of Mark-Recapture Estimates

Biometrics, 1993
When mark-recapture data are analysed by log-linear models, as described by Cormack (1989, Biometrics 45, 395-413), the analysis is in terms of parameters that are related nonlinearly to the parameters of biological interest. For several models formulae are given expressing the variance of the interesting parameter estimates in terms of those provided ...
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Trap mortality in mark-recapture studies

Environmental and Ecological Statistics, 2009
When animals die in traps in a mark-recapture study, straightforward likelihood inferences are possible in a class of models. The class includes M0, Mt, and Mb as reported by White et al. (Los Alamos National Laboratory, LA-8787-NERP, pp 235, 1982), those that do not involve heterogeneity.
Fred L. Ramsey, Aaron Johnston
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Mark‐recapture of microorganisms

Environmental Microbiology, 2022
John George McMullen, Jay T. Lennon
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Mark-recapture analysis of a known population

Journal of Biological Education, 1977
Problems involved with demonstrating mark-recapture techniques in ecology classes are discussed. An exercise which overcomes most of these difficulties using a known, restricted population of people is described. Jolly-Seber estimates of the size of this population varied in precision and accuracy with method and intensity of sampling, more or less as ...
Patrick T. Gregory, Hugh J. Barclay
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Mark‐recapture estimates of injecting drug users in Sydney

Australian Journal of Public Health, 1994
Abstract: The number of injecting drug users in the Central and Eastern Sydney Area Health Services (CSAHS and ESAHS) in 1989–1990 was estimated by applying the Petersen mark‐recapture method to data obtained from the Australian National AIDS and Injecting Drug Use Surveys conducted in 1989 and in 1990.
Duque‐Portugal, Francisco, Martin, Andrew J., Taylor, Richard, Ross, Michael W.   +3 more
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A White Shrimp Mark-Recapture Study

Transactions of the American Fisheries Society, 1974
Abstract Marked sub-adult white shrimp were released in Galveston Bay in August 1963. Recoveries indicated there was no emigration from the bay between August and mid-October. Using the Bertalanffy growth function estimates of L∞ equals 214 mm, K = 0.09 (sexes combined).
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Mark–recapture experiments with freshwater organisms

Journal of Biological Education, 1991
The population of Gyrinus, the whirligig beetle, is assessed using the Lincoln mark—recapture index. This technique has the advantage of helping the student to understand simple proportion as well as other concepts.
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A self-checking coding technique for mark-recapture studies

Bulletin of Entomological Research, 1970
A technique is described in which twelve symbols or fewer can be chosen to code insects with individual marks suitable for mark-recapture studies. The method has been tested on Acrididae and has the advantages that (i) the code is self-checking against loss of marks, (ii) the application is practical, as only one colour is applied to a given individual,
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Interval Estimation for Mark-Recapture Studies of Closed Populations

Biometrics, 1992
Textbooks continue to recommend the use of an asymptotic normal distribution to provide an interval estimate for the unknown size, N, of a closed population studied by a mark-recapture experiment or multiple-record system. A likelihood interval approach is proposed and its implementation demonstrated for a range of models for such studies, including ...
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