Closed population estimation models and their extensions in Program MARK

By G. White. Environmental and Ecological Statistics, 2008

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Grizzly Bear Density in Glacier National Park, Montana (2008, methodology): “To estimate total population size, including dependent young, we used Huggins–Pledger closed mixture models (Huggins 1991, Pledger 2000) in Program MARK (White and Burnham 1999; Pledger model updated May 2007; White 2008).”
Estimating population size and trends of the Swedish brown bear Ursus arctos population (2011, methodology): “We modelled heterogeneity using the Pledger model with two mixtures (Pledger 2000, White 2008).”
An estimator of wildlife fatality from observed carcasses (2011, background): “…model for persistence (exponential, ½N, gamma, etc.). wileyonlinelibrary.com/journal/environmetrics Copyright 2010 John Wiley & Sons, Ltd. Environmetrics 2011; 22: 318–329 3 2 6 Abundance is one of the most difficult parameters to estimate without bias, even for a closed population (White, 2008).”
Evaluating the potential biases in carnivore capture–recapture studies associated with the use of lure and varying density estimation techniques using photographic-sampling data of the Malagasy civet (2011, background): “Sahamalaotra is montane rainforest, characterized by a 20-25 m tree canopy dominated by Tambourissa and Weinmannia spp. (Turk 1997).”