Scroll down to see information about the workshops on offer during the week before ISEC 2010.
Modelling Patterns and Dynamics of Species Occurrence
Tuesday 29 June - Friday 2 July, 2010
The presence or absence of a species across a set of landscape units is a fundamental concept widely used in ecology (e.g., species range or distribution, epidemiology, habitat modelling, resource selection probability functions, as a monitoring metric, metapopulation studies, biodiversity and species co-occurrence). An important sampling issue, however, is that a species may not always be detected when present at a landscape unit. This will result in "false absences" causing parameter estimates to be biased if unaccounted for, possibly leading to misleading results and conclusions, even with moderate levels of imperfect detection.
Participants will have to provide their own laptop computer that is capable of running Windows-based software.
Price: £500 (with ISEC registration), £550 (without).
Spatially explicit capture-recapture with R
Murray Efford, David Borchers
Thursday 1 and Friday 2 July, 2010
Spatially explicit capture-recapture (SECR) is a new set of methods for estimating the density of animal populations sampled with passive detectors such as traps, cameras, microphones or hair snags for DNA. Conventional capture-recapture is suited to density estimation only when the study population occupies an island of habitat and all individuals are within range of detectors. SECR is appropriate when the habitat is more extensive. This workshop is aimed at scientists whose field research requires them to estimate population density from passive detections, and at statisticians interested to learn more about these methods.
AD Model Builder
Mark Maunder, Anders Nielsen
Monday 5th July, 2010
This course targets quantitative ecologists, and students who need to handle nonlinear statistical models (both frequentist and Bayesian). AD Model Builder (admb-project.org) is highly efficient, freely available software for implementing non-linear statistical models. The main reasons for preferring AD Model Builder are:
A beginners' course in ADMB will include:
The actual contents of the course will be customized to fit the audience. The form will be a mixture between lectures and hands on exercises. Participants will have to provide their own laptop computer.
Price: £75 (with ISEC registration), £125 (without).
Open-population capture-recapture and stopover duration models; recent advances including age-structure and heterogeneity
Shirley Pledger, Eleni Matechou, Murray Efford
Monday 5th July, 2010
The Jolly-Seber model may be extended in two ways, to include age-dependent survival rates even when the true age is unknown (Pledger, Efford, Pollock, Collazo and Lyons, 2009), and to allow for individual heterogeneity of capture and/or survival probabilities (Pledger, Pollock and Norris, in press). These recent developments focus on realistic models, for example:
A new R package for fitting these models will be provided and used at the workshop.
Data will be provided and analysed, but participants with their own data are invited to bring that for analysis and discussion as well. Participants should bring a laptop, preferably with R already installed. See http://cran.r-project.org for downloading and installation instructions. Some familiarity with R will be an advantage, but is not essential.
Pledger, S., Efford, M.G., Pollock, K.H., Collazo, J. and Lyons, J. (2009). Stopover duration analysis with departure probability dependent on unknown time since arrival. Pages 349-363 in D.L. Thomson, E.G. Cooch & M.J. Conroy (eds), Modeling Demographic Processes in Marked Populations, Environmental and Ecological Statistics 3, New York: Springer.
Pledger, S., Pollock, K.H. and Norris, J.L. Open capture-recapture models with heterogeneity: II Jolly-Seber model. In press, Biometrics. (Online early, November 2009.)
Price: £200 (with ISEC registration), £250 (without).