Thank you very much Peter.

Manuel

2012/6/28 Peter Solymos <solymos@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
> solymos@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 <mspinola10@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
> > mspinola@una.ac.cr
> > mspinola10@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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> >
>



-- 
*Manuel Spínola, Ph.D.*
Instituto Internacional en Conservación y Manejo de Vida Silvestre
Universidad Nacional
Apartado 1350-3000
Heredia
COSTA RICA
mspinola@una.ac.cr
mspinola10@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/>

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