Multievent course

Why a multievent course ?

The ever-changing field of capture-recapture techniques have brought biologists to ask fine questions on multiple biological processes such as recruitment, survival and dispersal. This need has led to the development of a general and highly flexible analytical framework: the multievent model. Multievent capture-recapture models are a natural generalization of the multisite recapture models. Similarly, individuals are sampled on discrete occasions, at which they may be captured or not. However, contrary to the multisite case, uncertainty in the assessment of state such as breeder, diseased or highly catchable can be incorporated into the analysis. Conceptually, it is not states that are observed but rather something dubbed an "event" (a particular breeding behaviour, a positive blood test or just encounter), which reflects to some extent the underlying state. The presence of imperfect observations and the lack of information on individual quality presently make multievent models an invaluable tool in virtually any area of population biology. Current applications of multievent models include the study of dispersal, epidemiology, individual heterogeneity, mixture of information...

What is this course?

The course aims to provide the participants with a solid background in the philosophy, theory and practices for the analysis of data from marked animals, with a specific focus on multievent data and models. This course will deal with recent advances in the analysis of CMR data, with a specific focus on multievent data and models. New developments allow the treatment of individual heterogeneity through random effects as well as through mixture models, and the inclusion of individual as well as environmental covariates. Emphasis will be placed on stringent procedures for building and selecting the most appropriate models for the data set at hand, in order to be able to draw reliable biological conclusions. The format of the workshop will be a combination of lectures and computer lab exercises with the programs E-SURGE (or R2ESURGE) and U-CARE. ( U-CARE incorporates goodness-of-fit tests for multistate models, and E-SURGE makes the building of complex models easy based on a language describing the structure of models in a compact and user-friendly way. All lectures and course material will be in English. It is our hope that participants will bring their own capture-recapture data to work on them during the workshop. To take full advantage of the workshop, it is expected that the participants will have some basic practice of the analysis of CR data.

Time-table (indicative):
Monday 28 November
9h00-9h15: Arrival and workshop registration
9h15- 9h30      BASE 1: Introduction
9h30 -10h15    BASE 2: Multievent
10h15-10h45   Coffee Break
10h45-11h30       EXERCISE: Titi (Breeder – Non-Breeder)
11h30-12h15   BASE 4: Main factors 1
12h15- 13h00 BASE 6: Main factors 2
13h00-14h15     Lunch
14h15-15h15     EXERCISE 3: Canada Goose
15h15-16h00     STATNUM 1: Goodness of Fit
16h00-16h30     Break
16h30-17h15     EXERCISE 5: Simulated data + Canada Goose

Tuesday 29 Novemebr
8h45-9h30       STATNUM 2: Heterogeneity model
9h30-10h30     EXERCISE 6: Black Headed Gull
10h30-11h00   Break
11h00-12h00   STATNUM 3: Specifying model structure (GEPAT)
12h00-13h00   EXERCISE 7: Modeling senescence
13h00-14h15   Lunch
14h15-14h45   STATNUM 4: Numerical aspects
14h45-15h45 EXERCISE 8: Flamingo
15h45-16h15   Break
16h15-17h00   THEORY: Occupancy models
17h00-18h00   EXERCISE 10: Lynx (Occupancy)

Wednesday 30 November
13h00-14h30   Lunch

Who is organizing this course?
The course is organized by the CEFE – CNRS Montpellier
Lectures will be given by Dr. R. Choquet, Dr. R. Pradel, Dr. G. Tavecchia, Dr. A. Sanz-Aguilar

When and where?
The course will be held in Esporles (Mallorca, Spain) at the IMEDEA (CSIC – UIB, from the 29th of November to the 1st of December 2021.

The closest (and only) airport on Mallorca island is outside the city of Palma. There are several companies offering low-cost flights to Mallorca from nearly every European capital.

Esporles is a village at c. 14 km North of Palma city. There are regular buses between Palma and Esporles (c. 35min journey, about 4 € return). You can easily find an accommodation in Palma, stay in one of the three hotels in Esporles or rent a small flat. We will send you more detailed information if you decide to come.

How much does it cost and how to pay?

Registration fee is 300 € or 250€ if you have registered to the Introductory Course.
The fee includes the course material and coffee/tea during Coffee breaks.

To apply visit
Alternatively, inscriptions should be done by sending a message to : remi.choquet@cefe.cnrs,fr 

What do I need?
You need a laptop (important!) with the following freely available software already installed:
3- R: (>Software > Packages).

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