comp ecol trans small

The book

We are happy to announce that together with Chapman & Hall we have taken on the challenge to write a book called "Analysis and Mapping of Animal Movement in R". We will provide in this book the necessary information for visualisations and analysis of animal movement data in R with a direct link to the massive data base We will also elaborate on the contextualisation, so how we can enrich positional information using remote sensing. The aim is to provide everyone with the means to analyse movement data in a reproducible way.

The track shown is from a vulture that our friends at the Hawk mountain santuary tagged. Keith Bildstein and his colleagues have clearly gathered one of the most amazing data sets (source), the credit clearly goes to the visionary field biologists.

Fluctuating environments

richnessMost project in our lab center around animal movement and species diversity in a fluctuating environment. We would like to understand how changes in the environmental conditions affect single individuals or entire species compositions.


Movement modeling

(Bart Kranstauber)dBBMM

In this project we are seeking to find better ways of describing animals' space use. By including more degrees of freedom in the assumptions underlying the models, we are trying to improve on existing concepts such as Brownian bridges. Important is the inclusion of irregular sampling and multisensorial tags such as the acceleration informed GPS tags. We have developed an extension to the Brownian bridge that can accommodate changes in behaviour and produces thus better estimates of space use for autocorrelated high resolution trajectories as well as for low resolution tracks using satellite technology.



Gone with the wind

(Bart Kranstauber)

We are interested to understand how wind conditions influence decisions of birds and bats to move and how it affects them on the wings. We work with global weather models and try to infer the behavioural changes from trajectories. One aspect that we are also investigating is how the methology of studying animal movement might influence the results obtained.





 The dynamics of species-environment interaction

(Mariƫlle van Toor)concept

The ecological niche concept is often interpreted in a very static way. Although we can think the fundamental ecological niche of species a fairly static and stable entity of species, the realised niche is in constant change. In fact the way species and individuals interact with their (abiotic) environemnt is probably highly dynmaic. We want to study these dynamics to better understand how species interact with their environment to produce a pattern of species diversity that might at some stage include animal movement.