Poster (Scientific congresses and symposiums)
Stigmergy as a mechanism to produce collective vortex behaviours: a study case in shoveler duck
Delcourt, Johann; bode, W. Nikolaï
201421st Benelux Congress of Zoology
 

Files


Full Text
Delcourt & Bode Benelux Congress of Zoology abstract book p.141.jpg
Publisher postprint (176.55 kB)
Download
Annexes
DelcourtPOSTER Liège 2014_2.pdf
Publisher postprint (3.66 MB)
poster communication
Download

All documents in ORBi are protected by a user license.

Send to



Details



Keywords :
stigmergy; shoveler; shoveller; anas clypeata; vortex; dynamic behaviour; density effect; depletation effect; interaction behaviour-environment; milling behaviour; filter-feeding; dabbling duck; feeding behaviour; swirl; swirling; collective behaviour; group dynamic; group behaviour; modelisation; nutrient field; resource landscape; food depletion; IBM; individual based-model; self-organization; self-organisation; tortuosity; trajectory; motion behaviour
Abstract :
[en] Ant mill, caterpillar circle, bat donut, bacteria vortex, duck swirl and fish torus are different names for rotating circular formations of animals, where individuals turn around a common centre. Even if the ubiquity of this behavioural phenomenon might have suggested common causes or fundamental underlying principles across contexts, a variety of proximate mechanisms can give rise to vortex behaviours. Here, we investigate if stigmergic process (mechanism of self-organisation wit hout direct communication or interaction between individuals) is able to produce different collective behaviours, notably collective vortices. We present an individual-based simulation model for the movement of populations in a resource landscape that allows us to vary the strength of the interactions mentioned above. The key assumption and novelty of our model is that individuals can cause the release of additional nutrients, as well as consuming them. Our model produces clear predictions. For example, we expect more tortuous individual movement paths and higher levels of aggregation in populations occupying homogeneous environments where individual movement makes more nutrients available. We also show how observed movement dynamics could change when local nutrient sources are depleted or when the population density increases. Our predictions are testable and qualitatively reproduce the different feeding behaviours observed in filter-feeding ducks (Anas clypeata), for example. We suggest that considering two-way interactions between feeding individuals and resource landscapes could help to explain fine-scale movement dynamics.
Disciplines :
Zoology
Author, co-author :
Delcourt, Johann  ;  Université de Liège - ULiège > Département de Biologie, Ecologie et Evolution > Biologie du comportement - Ethologie et psychologie animale
bode, W. Nikolaï;  University of Essex, UK > Department of Mathematical Sciences
Language :
English
Title :
Stigmergy as a mechanism to produce collective vortex behaviours: a study case in shoveler duck
Publication date :
December 2014
Number of pages :
A0
Event name :
21st Benelux Congress of Zoology
Event organizer :
University of Liège
Event place :
Liège, Belgium
Event date :
12-13 Décembre 2014
Audience :
International
Funders :
F.R.S.-FNRS - Fonds de la Recherche Scientifique [BE]
Commentary :
in Absract book p.141. This communication is related to the publication: Bode NWF, Delcourt J (2013) Individual-to-Resource Landscape Interaction Strength Can Explain Different Collective Feeding Behaviours. PLoS ONE 8(10): e75879. doi:10.1371/journal.pone.0075879
Available on ORBi :
since 10 December 2014

Statistics


Number of views
265 (9 by ULiège)
Number of downloads
151 (2 by ULiège)

Bibliography


Similar publications



Contact ORBi