[Todos] Invitación Charla Bryan F.J. Manly Ecologia Estadistica

[Nicolas Schweigmann]

El Dr Bryan F.J. Manly esta en la Argentina.

Invitamos para mañana martes 5 de Octubre a las 14 hs. en el aula Burkart

Dará una charla sobre:

"Improving Size Estimates Of Open Animal Populations When Animals Can Be
Aged."

Much effort is expended to estimate the sizes of wild animal populations but
population size has proven to be a difficult parameters to estimate. The
capture-recapture estimation models often used are complicated,  require
numerous assumptions, and estimates usually have large variances. Sometimes
the animals caught can be aged, but this information is not used completely.
This talk shows how to incorporate age information into size estimates for
open animal populations. The proposed method provides s ize estimates from
only two samples rather than the three usually required, allows increased
precision of estimates, and allows estimation using logistic regression,
rather than requiring the use of specialized programs that deal only with
mark-recapture data.
However, a simulation study shows that although the method has considerable
promise more work is needed on its practical application. In particular the
estimated population sizes may not be robust to the  assumptions made,
although this problem is als o likely to occur with all similar types of
model based capture-recapture analyses.


El Dr. Manly es autor de mas de 140 publicaciones y los siguientes libros:

Stage-Structured Populations: Sampling, Analysis and Simulation (Chapman and
Hall, 1990)

The Statistics of Natural Selection on Animal Populations (Chapman and Hall,
1985, 1987)

Multivariate Statistical Methods: a Primer (Chapman and Hall, 1986, 1994)

Randomization, Bootstrap and Monte Carlo Methods in Biology (Chapman and
Hall, 1991, 1997)

The Design and Analysis of Research Studies (Cambridge University Press,
1992)

Resource Selection by Animals: Statistical Design and Analysis (Chapman and
Hall, 1993, with L.M. McDonald and D.L. Thomas)

Editor of the Journal of Agricultural Biological and Environmental
Statistics (1999-2001)