Thank you very much Peter. Manuel
2012/6/28 Peter Solymos <soly...@ualberta.ca> > Manuel, > > As a starter you can fit nonlinear models using growth functions, and > calculate carrying capacity from estimated model parameters > (stats:::nle, lme4:::nlmer). > > I am not sure if this is of big help as it is still in development, > but our PVAClone R package is almost ready for its 1st CRAN submission > and can be found at the developmental R-Forge site: > https://r-forge.r-project.org/projects/dcr/ > > The PVAClone package offers likelihood based population viability > analysis in the presence of observation error and missing data. > Currently it can be used to fit and compare support for models based > on Gompertz and Ricker growth models with no observation error, Normal > or Poisson observation error as described in these papers (other > growth models and forecasting is soon to be added): > > Ponciano, J. M. et al. 2009. Hierarchical models in ecology: > confidence intervals, hypothesis testing, and model selection using > data cloning. Ecology 90, 356-362. > > Nadeem, K., Lele S. R., 2012. Likelihood based population viability > analysis in the presence of observation error. Oikos. doi: > 10.1111/j.1600-0706.2011.20010.x > > Cheers, > > Peter > > -- > Péter Sólymos, Dept Biol Sci, Univ Alberta, T6G 2E9, Canada AB > soly...@ualberta.ca, Ph 780.492.8534, http://psolymos.github.com > Alberta Biodiversity Monitoring Institute, http://www.abmi.ca > Boreal Avian Modelling Project, http://www.borealbirds.ca > > > 2012/6/28 Manuel Spínola <mspinol...@gmail.com>: > > Dear list members, > > > > Is there any package (and function) to assess carrying capacity for > > biological population? > > > > Best, > > > > Manuel > > > > -- > > *Manuel Spínola, Ph.D.* > > Instituto Internacional en Conservación y Manejo de Vida Silvestre > > Universidad Nacional > > Apartado 1350-3000 > > Heredia > > COSTA RICA > > mspin...@una.ac.cr > > mspinol...@gmail.com > > Teléfono: (506) 2277-3598 > > Fax: (506) 2237-7036 > > Personal website: Lobito de río < > https://sites.google.com/site/lobitoderio/> > > Institutional website: ICOMVIS <http://www.icomvis.una.ac.cr/> > > > > [[alternative HTML version deleted]] > > > > > > _______________________________________________ > > R-sig-ecology mailing list > > R-sig-ecology@r-project.org > > https://stat.ethz.ch/mailman/listinfo/r-sig-ecology > > > -- *Manuel Spínola, Ph.D.* Instituto Internacional en Conservación y Manejo de Vida Silvestre Universidad Nacional Apartado 1350-3000 Heredia COSTA RICA mspin...@una.ac.cr mspinol...@gmail.com Teléfono: (506) 2277-3598 Fax: (506) 2237-7036 Personal website: Lobito de río <https://sites.google.com/site/lobitoderio/> Institutional website: ICOMVIS <http://www.icomvis.una.ac.cr/> [[alternative HTML version deleted]]
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