Self-organized aggregation in cockroaches Export

@article{Jeanson05, abstract = {Aggregation is widespread in invertebrate societies and can appear in response to environmental heterogeneities or by attraction between individuals. We performed experiments with cockroach, Blattella germanica, larvae in a homogeneous environment to investigate the influence of interactions between individuals on aggregations. Different densities were tested. A first phase led to radial dispersion of larvae in relation to wall-following behaviours; the consequence of this process was a homogeneous distribution of larvae around the periphery of the arena. A second phase corresponded to angular reorganization of larvae leading to the formation of aggregates. The phenomenon was analysed both at the individual and collective levels. Individual cockroaches modulated their behaviour depending on the presence of other larvae in their vicinity: probabilities of stopping and resting times were both higher when the numbers of larvae were greater. We then developed an agent-based model implementing individual behavioural rules, all derived from experiments, to explain the aggregation dynamics at the collective level. This study supports evidence that aggregation relies on mechanisms of amplification, supported by interactions between individuals that follow simple rules based on local information and without knowledge of the global structure.}, author = {Jeanson, R. and Rivault, C. and Deneubourg, J. and Blanco, S. and Fournier, R. and Jost, C. and Theraulaz, G.}, citeulike-article-id = {3855307}, citeulike-linkout-0 = {http://dx.doi.org/10.1016/j.anbehav.2004.02.009}, citeulike-linkout-1 = {http://linkinghub.elsevier.com/retrieve/pii/S0003347204002428}, doi = {10.1016/j.anbehav.2004.02.009}, issn = {00033472}, journal = {Animal Behaviour}, keywords = {aggregation, cockroaches, controlled-experiment, model, self-organization}, month = {January}, number = {1}, pages = {169--180}, posted-at = {2009-01-06 21:35:24}, priority = {2}, title = {Self-organized aggregation in cockroaches}, url = {http://dx.doi.org/10.1016/j.anbehav.2004.02.009}, volume = {69}, year = {2005} }

TY - JOUR ID - Jeanson05 L3 - citeulike-article-id:3855307 N2 - Aggregation is widespread in invertebrate societies and can appear in response to environmental heterogeneities or by attraction between individuals. We performed experiments with cockroach, Blattella germanica, larvae in a homogeneous environment to investigate the influence of interactions between individuals on aggregations. Different densities were tested. A first phase led to radial dispersion of larvae in relation to wall-following behaviours; the consequence of this process was a homogeneous distribution of larvae around the periphery of the arena. A second phase corresponded to angular reorganization of larvae leading to the formation of aggregates. The phenomenon was analysed both at the individual and collective levels. Individual cockroaches modulated their behaviour depending on the presence of other larvae in their vicinity: probabilities of stopping and resting times were both higher when the numbers of larvae were greater. We then developed an agent-based model implementing individual behavioural rules, all derived from experiments, to explain the aggregation dynamics at the collective level. This study supports evidence that aggregation relies on mechanisms of amplification, supported by interactions between individuals that follow simple rules based on local information and without knowledge of the global structure. IS - 1 JF - Animal Behaviour SN - 00033472 EP - 180 TI - Self-organized aggregation in cockroaches VL - 69 SP - 169 KW - aggregation KW - cockroaches KW - controlled-experiment KW - model KW - self-organization AU - Jeanson, R AU - Rivault, C AU - Deneubourg, J AU - Blanco, S AU - Fournier, R AU - Jost, C AU - Theraulaz, G PY - 2005/01// UR - http://dx.doi.org/10.1016/j.anbehav.2004.02.009 ER -