Webusing a Huggins closed capture model implemented in Program MARK (Huggins 1989, 1991; White and Burn-ham 1999). Huggins closed capture models are conditional on an individual being captured at least once during the sampling period, and the models estimate abundance as a derived parameter rather than within the model likelihood (Huggins … Web20 aug. 2007 · Recently Hwang and Huggins (2005) have demonstrated analytically that the effect of ignoring heterogeneous probabilities of capture is to bias estimates of the population size downwardly. This can be overcome by modelling the heterogeneity. The use of covariates or auxiliary variables in the statistical analysis of capture–recapture …
DEMOGRAPHY OF A SMALL POPULATION OF LOGGERHEAD …
Web1 dec. 2024 · The top Huggins closed capture model with the lowest AIC c score was the model in which capture probability varied by a multiplicative combination of time and FL (Table S.3). This model estimated the adult population to be 886 individuals, with a 95% confidence interval (CI) of 674–1,211 individuals (Figure 5). Web6 mrt. 2008 · RDFHet Robust design with Closed models for secondary periods– full heterogeneity RDHuggins Robust design with Huggins models for secondary periods – … bar maximilian prato
Estimating the size of an open population using sparse capture
WebHuggins closed capture models estimate abundance as a derived parameter which is calculated separately for each observer (Huggins, 1989). We used the abundance estimates derived from the constant model, which had the lowest QAICcvalue. The derived abundance estimate for observer 1 was 110.5 ± 7.5 SE with a 95% confidence interval … Web1 mei 2024 · Print method for Huggin's closed population model objects estimated by F.huggins.estim(). print.hug: Print Huggin's Model objects in mra: Mark-Recapture … Web5 apr. 2024 · In this study, we build a theory for the transient simulation of a pH-sensitive hydrogel-based microvalve. Three fields are involved in the theory, namely the electrochemical, mechanical and fluid fields. We utilize the Nernst–Planck equation to describe the ionic flux into the hydrogel through diffusion, electrical migration and … barmau xtra