The STARFLAG handbook on collective animal behaviour: Part I, empirical methods

Details The STARFLAG handbook on collective animal behaviour: Part I, empirical methods The STARFLAG handbook on collective animal behaviour: Part I, empirical methods

2008-02-12

arxiv.org/abs/0802.1668v1

Biology

Quantitative Biology

Quantitative Methods

To be published in Animal Behaviour

Scientific paper

The most startling examples of collective animal behaviour are provided by very large and cohesive groups moving in three dimensions. Paradigmatic examples are bird flocks, fish schools and insect swarms. However, because of the sheer technical difficulty of obtaining 3D data, empirical studies conducted to date have only considered loose groups of a few tens of animals. Moreover, these studies were very seldom conducted in the field. Recently the STARFLAG project achieved the 3D reconstruction of thousands of birds under field conditions, thus opening the way to a new generation of quantitative studies of collective animal behaviour. Here, we review the main technical problems in 3D data collection of large animal groups and we outline some of the methodological solutions adopted by the STARFLAG project. In particular, we explain how to solve the stereoscopic correspondence - or matching - problem, which was the major bottleneck of all 3D studies in the past.

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