The authors extend the classical Cormack–Jolly–Seber mark-recapture model to account for both temporal and spatial movement through a series of markers (e.g., dams). Survival rates are modeled as a function of (possibly) unobserved travel times. Because of the complex nature of the likelihood, they use a Bayesian approach based on the complete data likelihood, and integrate the posterior throug...

A mark-release-recapture experiment with the progeny of wild collected Culex tritaeniorhynchus was conducted at the village of Khokhar near Lahore, Pakistan, during June-July 1976, the onset of the monsoon. Recapture rates for each of three releases ranged from a low of 0*19”,, for males to a high of 0.58”,, for females. Male and female recaptures were well correlated with the dispersion patter...

As part of a recent study of the dynamics of the retail market for methamphetamine use in New York City, we used network sampling methods to estimate the size of the total networked population. This process involved sampling from respondents' list of co-use contacts, which in turn became the basis for capture-recapture estimation. Recapture sampling was based on links to other respondents deriv...

BACKGROUND The Government of Cambodia has committed to supporting family care for vulnerable children, including homeless populations. Collecting baseline data on the numbers and characteristics of homeless adolescents was prioritized to illuminate the scope of the issue, mobilize resources and direct the response. METHODS Administrative zones across seven cities were purposively selected to ...

Whether an animal lives alone or in a group may have fitness consequences. Among yellow-bellied marmots (Marmota flaviventris), fitness is thought to be lower for noncolonial than for colonial females because juvenile survival, as indicated by trapping, is lower. Trapping, however, may not be an accurate estimate of survival. Low recapture rates of noncolonial juveniles may result from early di...

1. Optimisation of control methods of invasive species using life-history information may increase probability that techniques will be effective at reducing impacts of nuisance species. 2. The northern crayfish, Orconectes virilis, has negatively affected native flora and fauna throughout the world in areas where it is non-native. Yet, life history of invasive populations has rarely been studie...

BACKGROUND The ability and behaviour of the capture-recapture method using a virtual three-source model for evaluation of the level of completeness of case ascertainment requires exploration. METHODS Cancer cases obtained from 9 population-based cancer registries in Thailand during 2003 to 2007 were applied for capture-recapture using a model based on clinical, pathological and mortality data...

STUDY OBJECTIVE To investigate the utility of capture-recapture methods to estimate prevalence of subjects with alcohol related disorders using multiple incomplete lists. DESIGN This was a cross sectional study of alcohol related disorders in a large community. SETTING During 1997 identified cases with known alcohol related disorders were independently flagged by four sources (self help vol...

Live-trapping capture-recapture studies of animal populations with fixed trap locations inevitably have a spatial component: animals close to traps are more likely to be caught than those far away. This is not addressed in conventional closed-population estimates of abundance and without the spatial component, rigorous estimates of density cannot be obtained. We propose new, flexible capture-re...

An essential component of all software inspection processes is a well-founded decision about continuing or stopping the current process. This decision should be based upon directly relevant quantitative information – the number of defects remaining in the artefact. This quantity can be estimated by the use of capturerecapture methods. Several Software Engineering papers have explored this topic...