Etienne Toffin; Edith Gabriel; Marceau Louis; Jean-Louis Deneubourg; Jean-Claude Grégoire Colonization of weakened trees by mass-attacking bark beetles: no penalty for pioneers, scattered initial distributions and final regular patterns Journal Article In: Royal Society Open Science, 5 (1), 2018. Abstract | Links | BibTeX @article{Toffin2018Colonization-of,
title = {Colonization of weakened trees by mass-attacking bark beetles: no penalty for pioneers, scattered initial distributions and final regular patterns},
author = {Etienne Toffin and Edith Gabriel and Marceau Louis and Jean-Louis Deneubourg and Jean-Claude Grégoire},
url = {http://rsos.royalsocietypublishing.org/content/5/1/170454},
doi = {10.1098/rsos.170454},
year = {2018},
date = {2018-01-01},
journal = {Royal Society Open Science},
volume = {5},
number = {1},
publisher = {The Royal Society},
abstract = {Bark beetles use aggregation pheromones to promote group foraging, thus increasing the chances of an individual to find a host and, when relevant, to overwhelm the defences of healthy trees. When a male beetle finds a suitable host, it releases pheromones that attract potential mates as well as other textquoteleftspyingtextquoteright males, which result in aggregations on the new host. To date, most studies have been concerned with the use of aggregation pheromones by bark beetles to overcome the defences of living, well-protected trees. How insects behave when facing undefended or poorly defended hosts remains largely unknown. The spatio-temporal pattern of resource colonization by the European eight-toothed spruce bark beetle, Ips typographus, was quantified when weakly defended hosts (fallen trees) were attacked. In many of the replicates, colonization began with the insects rapidly scattering over the available surface and then randomly filling the gaps until a regular distribution was established, which resulted in a constant decrease in nearest-neighbour distances to a minimum below which attacks were not initiated. The scattered distribution of the first attacks suggested that the trees were only weakly defended. A minimal theoretical distance of 2.5 cm to the earlier settlers (corresponding to a density of 3.13 attacks dm-2) was calculated, but the attack density always remained lower, between 0.4 and 1.2 holes dm-2, according to our observations.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Bark beetles use aggregation pheromones to promote group foraging, thus increasing the chances of an individual to find a host and, when relevant, to overwhelm the defences of healthy trees. When a male beetle finds a suitable host, it releases pheromones that attract potential mates as well as other textquoteleftspyingtextquoteright males, which result in aggregations on the new host. To date, most studies have been concerned with the use of aggregation pheromones by bark beetles to overcome the defences of living, well-protected trees. How insects behave when facing undefended or poorly defended hosts remains largely unknown. The spatio-temporal pattern of resource colonization by the European eight-toothed spruce bark beetle, Ips typographus, was quantified when weakly defended hosts (fallen trees) were attacked. In many of the replicates, colonization began with the insects rapidly scattering over the available surface and then randomly filling the gaps until a regular distribution was established, which resulted in a constant decrease in nearest-neighbour distances to a minimum below which attacks were not initiated. The scattered distribution of the first attacks suggested that the trees were only weakly defended. A minimal theoretical distance of 2.5 cm to the earlier settlers (corresponding to a density of 3.13 attacks dm-2) was calculated, but the attack density always remained lower, between 0.4 and 1.2 holes dm-2, according to our observations. |
Ranganathan, S.; Nicolis, S. C.; Swain, Ranjula Bali; Sumpter, D. J. T. Setting development goals using stochastic dynamical system models Journal Article In: PloS one, 12 (2), pp. e0171560, 2017. BibTeX @article{ranganathan2017setting,
title = {Setting development goals using stochastic dynamical system models},
author = {Ranganathan, S. and Nicolis, {S. C.} and Swain, Ranjula Bali and Sumpter, {D. J. T.}},
year = {2017},
date = {2017-01-01},
journal = {PloS one},
volume = {12},
number = {2},
pages = {e0171560},
publisher = {Public Library of Science},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
|
Audrey Bologna; Etienne Toffin; Claire Detrain; Alexandre Campo An automated method for large-scale monitoring of seed dispersal by ants Journal Article In: Scientific Reports, 7 , pp. 40143, 2017, ISSN: 2045-2322. Links | BibTeX @article{Bologna2017An-automated-me,
title = {An automated method for large-scale monitoring of seed dispersal by ants},
author = {Audrey Bologna and Etienne Toffin and Claire Detrain and Alexandre Campo},
url = {http://dx.doi.org/10.1038/srep40143},
doi = {10.1038/srep40143},
issn = {2045-2322},
year = {2017},
date = {2017-01-01},
journal = {Scientific Reports},
volume = {7},
pages = {40143},
publisher = {Springer Nature},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
|
Nicolis, S. C. Decision-Making at the Cellular Level: The Physarum Paradigm Incollection In: Advances in Physarum Machines, pp. 705–721, Springer International Publishing, 2016. BibTeX @incollection{Nicolis2016,
title = {Decision-Making at the Cellular Level: The Physarum Paradigm},
author = {Nicolis, {S. C.}},
year = {2016},
date = {2016-01-01},
booktitle = {Advances in Physarum Machines},
pages = {705--721},
publisher = {Springer International Publishing},
keywords = {},
pubstate = {published},
tppubtype = {incollection}
}
|
Nicolis, S. C.; Halloy, J.; Deneubourg, J. L. Transition between segregation and aggregation: the role of environmental constraints Journal Article In: Scientific Reports, 6 , pp. 32703, 2016. BibTeX @article{Nicolis2016a,
title = {Transition between segregation and aggregation: the role of environmental constraints},
author = {Nicolis, {S. C.} and Halloy, J. and Deneubourg, {J. L.}},
year = {2016},
date = {2016-01-01},
journal = {Scientific Reports},
volume = {6},
pages = {32703},
publisher = {Nature Publishing Group},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
|
Basios, V.; Nicolis, S. C.; Deneubourg, J. L. Coordinated aggregation in complex systems Journal Article In: The European Physical Journal Special Topics, 225 (6-7), pp. 1143–1147, 2016. BibTeX @article{Basios2016,
title = {Coordinated aggregation in complex systems},
author = {Basios, V. and Nicolis, {S. C.} and Deneubourg, {J. L.}},
year = {2016},
date = {2016-01-01},
journal = {The European Physical Journal Special Topics},
volume = {225},
number = {6-7},
pages = {1143--1147},
publisher = {Springer Berlin Heidelberg},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
|
Broly, P.; Ectors, Q.; Decuyper, G.; Nicolis, S. C.; Deneubourg, J. L. Sensitivity of density-dependent threshold to species composition in arthropod aggregates Journal Article In: Scientific Reports, 6 , pp. 34436, 2016. BibTeX @article{Broly2016,
title = {Sensitivity of density-dependent threshold to species composition in arthropod aggregates},
author = {Broly, P. and Ectors, Q. and Decuyper, G. and Nicolis, {S. C.} and Deneubourg, {J. L.}},
year = {2016},
date = {2016-01-01},
journal = {Scientific Reports},
volume = {6},
pages = {34436},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
|
Marceau Louis; Etienne Toffin; Jean-Claude Grégoire; Jean-Louis Deneubourg Modelling collective foraging in endemic bark beetle populations Journal Article In: Ecological Modelling, 337 , pp. 188 - 199, 2016, ISSN: 0304-3800. Abstract | Links | BibTeX @article{Louis2016Modelling-colle,
title = {Modelling collective foraging in endemic bark beetle populations},
author = {Marceau Louis and Etienne Toffin and Jean-Claude Grégoire and Jean-Louis Deneubourg},
url = {http://www.sciencedirect.com/science/article/pii/S0304380016302502},
doi = {http://dx.doi.org/10.1016/j.ecolmodel.2016.07.008},
issn = {0304-3800},
year = {2016},
date = {2016-01-01},
journal = {Ecological Modelling},
volume = {337},
pages = {188 - 199},
abstract = {Abstract Tree-killing bark beetles are widely studied at epidemic population densities because of their significant impacts on forests. At endemic levels, these species are restricted to poorly defended resources, such as wind-felled, lightning-struck, or suppressed trees. It is poorly understood how these scattered and unpredictable resources are discovered and exploited. In this prospect, the collective foraging shown by most bark beetles, in the form of independent searching by individual beetles combined with mutual attention to each other's chemical signals, represents an efficient strategy to increase the probability to discover the resources. In order to explore the role of host distribution and collective foraging on the discovery of and settlement on wind-felled trees by bark beetles at endemic population densities, we developed a spatially explicit foraging model for the major forest pest in Europe, Ips typographus. The model is based on the diffusion of the beetles, the landing of pioneers on wind-felled trees realistically distributed based on field observations in southern Belgium, and the response of flying beetles to pheromones emitted by these pioneers. The results show that social foraging effectively increases the proportion of beetles that landed on wind-felled resources compared to solitary foragers. Furthermore, the model highlights the parameters that influenced the foraging strategy of I. typographus and that need narrower quantification in further experiments. Finally, in the frame of the tested parameters, the model highlights the existence of thresholds in the reproduction rate and in the size of the starting population under which populations collapse. If confirmed, this prediction would shed new light on the understanding of foraging at low, endemic population levels.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Abstract Tree-killing bark beetles are widely studied at epidemic population densities because of their significant impacts on forests. At endemic levels, these species are restricted to poorly defended resources, such as wind-felled, lightning-struck, or suppressed trees. It is poorly understood how these scattered and unpredictable resources are discovered and exploited. In this prospect, the collective foraging shown by most bark beetles, in the form of independent searching by individual beetles combined with mutual attention to each other's chemical signals, represents an efficient strategy to increase the probability to discover the resources. In order to explore the role of host distribution and collective foraging on the discovery of and settlement on wind-felled trees by bark beetles at endemic population densities, we developed a spatially explicit foraging model for the major forest pest in Europe, Ips typographus. The model is based on the diffusion of the beetles, the landing of pioneers on wind-felled trees realistically distributed based on field observations in southern Belgium, and the response of flying beetles to pheromones emitted by these pioneers. The results show that social foraging effectively increases the proportion of beetles that landed on wind-felled resources compared to solitary foragers. Furthermore, the model highlights the parameters that influenced the foraging strategy of I. typographus and that need narrower quantification in further experiments. Finally, in the frame of the tested parameters, the model highlights the existence of thresholds in the reproduction rate and in the size of the starting population under which populations collapse. If confirmed, this prediction would shed new light on the understanding of foraging at low, endemic population levels. |
Nicolis, S. C. Animal Construction as a Free Boundary Problem: Evidence of Fractal Scaling Laws Incollection In: Chaos, Information Processing and Paradoxical Games, pp. 399-409, World Scientific, 2015. Abstract | BibTeX @incollection{Nicolis2015a,
title = {Animal Construction as a Free Boundary Problem: Evidence of Fractal Scaling Laws},
author = {Nicolis, {S. C.}},
year = {2015},
date = {2015-01-01},
booktitle = {Chaos, Information Processing and Paradoxical Games},
pages = {399-409},
publisher = {World Scientific},
abstract = {We suggest that the main features of animal construction can be understood as the sum of locally independent actions of non-interacting individuals subjected to the global constraints imposed by the nascent structure. We first formulate an analytically tractable macroscopic description of construction which predicts a 1/3 power law for how the length of the structure grows with time. We further show how the power law is modified when biases in random walk performed by the constructors as well as halting times between consecutive construction steps are included.},
keywords = {},
pubstate = {published},
tppubtype = {incollection}
}
We suggest that the main features of animal construction can be understood as the sum of locally independent actions of non-interacting individuals subjected to the global constraints imposed by the nascent structure. We first formulate an analytically tractable macroscopic description of construction which predicts a 1/3 power law for how the length of the structure grows with time. We further show how the power law is modified when biases in random walk performed by the constructors as well as halting times between consecutive construction steps are included. |
Nicolis, G.; Nicolis, S. C. Probabilistic Network Approach to Decision-Making Journal Article In: Open Systems & Information Dynamics, 22 (02), pp. 1550012, 2015. BibTeX @article{nicolis2015probabilistic,
title = {Probabilistic Network Approach to Decision-Making},
author = {Nicolis, {G.} and Nicolis, {S. C.}},
year = {2015},
date = {2015-01-01},
journal = {Open Systems & Information Dynamics},
volume = {22},
number = {02},
pages = {1550012},
publisher = {World Scientific},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
|
Ranganathan, S.; Nicolis, S. C.; Spaiser, V.; Sumpter, D.J.T. Understanding Democracy and Development Traps Using a Data-Driven Approach Journal Article In: Big Data, 3 (1), pp. 22-33, 2015. Abstract | BibTeX @article{Ranganathan2015,
title = {Understanding Democracy and Development Traps Using a Data-Driven Approach},
author = {Ranganathan, S. and Nicolis, {S. C.} and Spaiser, V. and Sumpter, D.J.T.},
year = {2015},
date = {2015-01-01},
journal = {Big Data},
volume = {3},
number = {1},
pages = {22-33},
abstract = {Methods from machine learning and data science are becoming increasingly important in the social sciences, providing powerful new ways of identifying statistical relationships in large data sets. However, these relation- ships do not necessarily offer an understanding of the processes underlying the data. To address this problem, we have developed a method for fitting nonlinear dynamical systems models to data related to social change. Here, we use this method to investigate how countries become trapped at low levels of socioeconomic devel- opment. We identify two types of traps. The first is a democracy trap, where countries with low levels of eco- nomic growth and/or citizen education fail to develop democracy. The second trap is in terms of cultural values, where countries with low levels of democracy and/or life expectancy fail to develop emancipative values. We show that many key developing countries, including India and Egypt, lie near the border of these develop- ment traps, and we investigate the time taken for these nations to transition toward higher democracy and so- cioeconomic well-being.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Methods from machine learning and data science are becoming increasingly important in the social sciences, providing powerful new ways of identifying statistical relationships in large data sets. However, these relation- ships do not necessarily offer an understanding of the processes underlying the data. To address this problem, we have developed a method for fitting nonlinear dynamical systems models to data related to social change. Here, we use this method to investigate how countries become trapped at low levels of socioeconomic devel- opment. We identify two types of traps. The first is a democracy trap, where countries with low levels of eco- nomic growth and/or citizen education fail to develop democracy. The second trap is in terms of cultural values, where countries with low levels of democracy and/or life expectancy fail to develop emancipative values. We show that many key developing countries, including India and Egypt, lie near the border of these develop- ment traps, and we investigate the time taken for these nations to transition toward higher democracy and so- cioeconomic well-being. |
Vogel, D.; Nicolis, S. C.; Perez-Escudero, A.; Nanjundiah, V.; Sumpter, D. J. T..; Đussutour, A. Phenotypic variability in unicellular organisms: from calcium signalling to social behaviour Journal Article In: Proceedings of the Royal Society of London B: Biological Sciences, 282 (1819), 2015. Abstract | BibTeX @article{Vogel20152322,
title = {Phenotypic variability in unicellular organisms: from calcium signalling to social behaviour},
author = {Vogel, D. and Nicolis, {S. C.} and Perez-Escudero, A. and Nanjundiah, V. and Sumpter, {D. J. T.}. and Đussutour, {A}.},
year = {2015},
date = {2015-01-01},
journal = {Proceedings of the Royal Society of London B: Biological Sciences},
volume = {282},
number = {1819},
abstract = {Historically, research has focused on the mean and often neglected the variance. However, variability in nature is observable at all scales: among cells within an individual, among individuals within a population and among populations within a species. A fundamental quest in biology now is to find the mechanisms that underlie variability. Here, we investigated behavioural variability in a unique unicellular organism, Physarum polycephalum. We combined experiments and models to show that variability in cell signalling contributes to major differences in behaviour underpinning some aspects of social interactions. First, following thousands of cells under various contexts, we identified distinct behavioural phenotypes: textquoteleftslow–regular–socialtextquoteright, textquoteleftfast–regular–socialtextquoteright and textquoteleftfast–irregular–asocialtextquoteright. Second, coupling chemical analysis and behavioural assays we found that calcium signalling is responsible for these behavioural phenotypes. Finally, we show that differences in signalling and behaviour led to alternative social strategies. Our results have considerable implications for our understanding of the emergence of variability in living organisms.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Historically, research has focused on the mean and often neglected the variance. However, variability in nature is observable at all scales: among cells within an individual, among individuals within a population and among populations within a species. A fundamental quest in biology now is to find the mechanisms that underlie variability. Here, we investigated behavioural variability in a unique unicellular organism, Physarum polycephalum. We combined experiments and models to show that variability in cell signalling contributes to major differences in behaviour underpinning some aspects of social interactions. First, following thousands of cells under various contexts, we identified distinct behavioural phenotypes: textquoteleftslow–regular–socialtextquoteright, textquoteleftfast–regular–socialtextquoteright and textquoteleftfast–irregular–asocialtextquoteright. Second, coupling chemical analysis and behavioural assays we found that calcium signalling is responsible for these behavioural phenotypes. Finally, we show that differences in signalling and behaviour led to alternative social strategies. Our results have considerable implications for our understanding of the emergence of variability in living organisms. |
Nicolis, S. C.; Nicolis, G. Dynamics of Collective Decisions in a Time-Dependent Environment Journal Article In: International Journal of Bifurcation and Chaos, 24 (8), pp. 1440010 (9 pages), 2014. BibTeX @article{nicolis2014dynamics,
title = {Dynamics of Collective Decisions in a Time-Dependent Environment},
author = {Nicolis, {S. C.} and Nicolis, {G.}},
year = {2014},
date = {2014-01-01},
journal = {International Journal of Bifurcation and Chaos},
volume = {24},
number = {8},
pages = {1440010 (9 pages)},
publisher = {World Scientific},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
|
Arganda, S; Nicolis, S. C.; Perochain, A; P'echabadens, C; Latil, G; Dussutour, A Collective choice in ants: The role of protein and carbohydrates ratios Journal Article In: Journal of insect physiology, 69 , pp. 19-26, 2014. BibTeX @article{arganda2014collective,
title = {Collective choice in ants: The role of protein and carbohydrates ratios},
author = {Arganda, S and Nicolis, {S. C.} and Perochain, A and P{'e}chabadens, C and Latil, G and Dussutour, A},
year = {2014},
date = {2014-01-01},
journal = {Journal of insect physiology},
volume = {69},
pages = {19-26},
publisher = {Elsevier},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
|
Nicolis, S. C.; Fern'andez, J.; P'erez-Penichet, C.; Noda, C.; Tejera, F.; Ramos, O.; Sumpter, D. J. T.; Altshuler, E. Foraging at the Edge of Chaos: Internal Clock Versus External Forcing Journal Article In: Physical Review Letters, 110 (26), pp. 268104, 2013. BibTeX @article{nicolis2013foraging,
title = {Foraging at the Edge of Chaos: Internal Clock Versus External Forcing},
author = {Nicolis, {S. C.} and Fern{'a}ndez, J. and P{'e}rez-Penichet, C. and Noda, C. and Tejera, F. and Ramos, O. and Sumpter, {D. J. T.} and Altshuler, E.},
year = {2013},
date = {2013-01-01},
journal = {Physical Review Letters},
volume = {110},
number = {26},
pages = {268104},
publisher = {American Physical Society},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
|
Dussutour, A.; Nicolis, S. C. Flexibility in Collective Decision-Making by Ant Colonies: Tracking Food across Space and Time Journal Article In: Chaos, Solitons & Fractals, 50 , pp. 32-38, 2013. BibTeX @article{dussutour2013flexibility,
title = {Flexibility in Collective Decision-Making by Ant Colonies: Tracking Food across Space and Time},
author = {Dussutour, A. and Nicolis, {S. C.},
year = {2013},
date = {2013-01-01},
journal = {Chaos, Solitons & Fractals},
volume = {50},
pages = {32-38},
publisher = {Pergamon},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
|
Perna, A.; Granovskiy, B.; Garnier, S.; Nicolis, S. C.; Lab'edan, M.; Theraulaz, G.; Fourcassi'e, V.; Sumpter, D. J. T. Individual Rules for Trail Pattern Formation in Argentine Ants (Linepithema Humile) Journal Article In: PLoS Computational Biology, 8 (7), pp. e1002592, 2012. BibTeX @article{perna2012individual,
title = {Individual Rules for Trail Pattern Formation in Argentine Ants (Linepithema Humile)},
author = {Perna, A. and Granovskiy, B. and Garnier, S. and Nicolis, {S. C.} and Lab{'e}dan, M. and Theraulaz, G. and Fourcassi{'e}, V. and Sumpter, {D. J. T.},
year = {2012},
date = {2012-01-01},
journal = {PLoS Computational Biology},
volume = {8},
number = {7},
pages = {e1002592},
publisher = {Public Library of S. C.ience},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
|
Sumpter, D. J. T.; Zabzina, N.; Nicolis, S. C. Six Predictions about the Decision Making of Animal and Human Groups Journal Article In: Managerial and Đecision Economics, 33 (5-6), pp. 295–309, 2012. BibTeX @article{sumpter2012six,
title = {Six Predictions about the Decision Making of Animal and Human Groups},
author = {Sumpter, {D. J. T.} and Zabzina, N. and Nicolis, {S. C.},
year = {2012},
date = {2012-01-01},
journal = {Managerial and Đecision Economics},
volume = {33},
number = {5-6},
pages = {295--309},
publisher = {John Wiley & Sons, Ltd},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
|
Nicolis, S. C. Information Flow and Information Production in a Population System Journal Article In: Physical Review E, 84 (1), pp. 011110, 2011. BibTeX @article{nicolis2011information,
title = {Information Flow and Information Production in a Population System},
author = {Nicolis, {S. C.}},
year = {2011},
date = {2011-01-01},
journal = {Physical Review E},
volume = {84},
number = {1},
pages = {011110},
publisher = {APS},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
|
Nicolis, S. C.; Dussutour, A. Resource Exploitation Strategies in the Presence of Traffic between Food Sources Journal Article In: Biosystems, 103 (1), pp. 73–78, 2011. BibTeX @article{nicolis2011resource,
title = {Resource Exploitation Strategies in the Presence of Traffic between Food Sources},
author = {Nicolis, {S. C.} and Dussutour, A.},
year = {2011},
date = {2011-01-01},
journal = {Biosystems},
volume = {103},
number = {1},
pages = {73--78},
publisher = {Elsevier},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
|
Nicolis, S. C.; Sumpter, D. J. T. A Dynamical Approach to Stock Market Fluctuations Journal Article In: International Journal of Bifurcation and Chaos, 21 (12), pp. 3557–3564, 2011. BibTeX @article{nicolis2011dynamical,
title = {A Dynamical Approach to Stock Market Fluctuations},
author = {Nicolis, {S. C.} and Sumpter, {D. J. T.}},
year = {2011},
date = {2011-01-01},
journal = {International Journal of Bifurcation and Chaos},
volume = {21},
number = {12},
pages = {3557--3564},
publisher = {World S. C.ientific Publishing Company},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
|
Nicolis, S. C.; Zabzina, N.; Latty, T.; Sumpter, D. J. T. Collective Irrationality and Positive Feedback Journal Article In: PloS One, 6 (4), pp. e18901, 2011. BibTeX @article{nicolis2011collective,
title = {Collective Irrationality and Positive Feedback},
author = {Nicolis, {S. C.} and Zabzina, N. and Latty, T. and Sumpter, {D. J. T.}},
year = {2011},
date = {2011-01-01},
journal = {PloS One},
volume = {6},
number = {4},
pages = {e18901},
publisher = {Public Library of Science},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
|
Etienne Toffin; Jonathan Kindekens; Jean-Louis Deneubourg Excavated substrate modulates growth instability during nest building in ants Journal Article In: Proc Roy Soc Lond B, 277 (1694), pp. 2617–2625, 2010. Links | BibTeX @article{Toffin2010Excavated-subst,
title = {Excavated substrate modulates growth instability during nest building in ants},
author = {Etienne Toffin and Jonathan Kindekens and Jean-Louis Deneubourg},
doi = {10.1098/rspb.2010.0176},
year = {2010},
date = {2010-09-01},
journal = {Proc Roy Soc Lond B},
volume = {277},
number = {1694},
pages = {2617--2625},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
|
Nicolis, H.; Nicolis, S. C. The Selfish to Egalitarian Transition in Young Children: Developmental Processes Versus Cooperative Interactions. Journal Article In: Nonlinear Dynamics, Psychology, and Life Sciences, 14 (3), pp. 257-264, 2010. BibTeX @article{nicolis2010selfish,
title = {The Selfish to Egalitarian Transition in Young Children: Developmental Processes Versus Cooperative Interactions.},
author = {Nicolis, H. and Nicolis, {S. C.},
year = {2010},
date = {2010-01-01},
journal = {Nonlinear Dynamics, Psychology, and Life Sciences},
volume = {14},
number = {3},
pages = {257-264},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
|
Etienne Toffin; David Di Paolo; Alexandre Campo; Claire Detrain; Jean-Louis Deneubourg Shape transition during nest digging in ants Journal Article In: Proc Natl Acad Sci USA, 106 (44), pp. 18616–18620, 2009. Links | BibTeX @article{Toffin2009Shape-transitio,
title = {Shape transition during nest digging in ants},
author = {Etienne Toffin and David Di Paolo and Alexandre Campo and Claire Detrain and Jean-Louis Deneubourg},
doi = {10.1073/pnas.0902685106},
year = {2009},
date = {2009-11-01},
journal = {Proc Natl Acad Sci USA},
volume = {106},
number = {44},
pages = {18616--18620},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
|
Dussutour, A.; Nicolis, S. C.; Shephard, G.; Beekman, M.; Sumpter, D. J. T. The Role of Multiple Pheromones in Food Recruitment by Ants Journal Article In: Journal of Experimental Biology, 212 (15), pp. 2337-2348, 2009. BibTeX @article{dussutour2009role,
title = {The Role of Multiple Pheromones in Food Recruitment by Ants},
author = {Dussutour, A. and Nicolis, {S. C.} and Shephard, G. and Beekman, M. and Sumpter, {D. J. T.}},
year = {2009},
date = {2009-01-01},
journal = {Journal of Experimental Biology},
volume = {212},
number = {15},
pages = {2337-2348},
publisher = {Company of Biologists},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
|
Dussutour, A.; Beekman, M.; Nicolis, S. C.; Meyer, B. Noise Improves Collective Decision-Making by Ants in Dynamic Environments Journal Article In: Proceedings of the Royal Society B: Biological Sciences, 276 (1677), pp. 4353-4361, 2009. BibTeX @article{dussutour2009noise,
title = {Noise Improves Collective Decision-Making by Ants in Dynamic Environments},
author = {Dussutour, A. and Beekman, M. and Nicolis, {S. C.} and Meyer, B.},
year = {2009},
date = {2009-01-01},
journal = {Proceedings of the Royal Society B: Biological Sciences},
volume = {276},
number = {1677},
pages = {4353-4361},
publisher = {The Royal Society},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
|
Nicolis, C.; Nicolis, S. C. Propagation of Extremes in Space Journal Article In: Physical Review E, 80 , pp. 026201, 2009. BibTeX @article{nicolis2009propagation,
title = {Propagation of Extremes in Space},
author = {Nicolis, C. and Nicolis, {S. C.}},
year = {2009},
date = {2009-01-01},
journal = {Physical Review E},
volume = {80},
pages = {026201},
publisher = {American Physical Society},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
|
Nicolis, S. C. Communication Networks in Insect Societies Journal Article In: Bio-Inspired Computing and Communication, pp. 155–164, 2008. BibTeX @article{nicolis2008communication,
title = {Communication Networks in Insect Societies},
author = {Nicolis, {S. C.}},
year = {2008},
date = {2008-01-01},
journal = {Bio-Inspired Computing and Communication},
pages = {155--164},
publisher = {Springer},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
|
Nicolis, S. C.; Despland, E.; Dussutour, A. Collective Decision-Making and Behavioral Polymorphism in Group Living Organisms Journal Article In: Journal of Theoretical Biology, 254 (3), pp. 580–586, 2008. BibTeX @article{nicolis2008collective,
title = {Collective Decision-Making and Behavioral Polymorphism in Group Living Organisms},
author = {Nicolis, {S. C.} and Despland, E. and Dussutour, A.},
year = {2008},
date = {2008-01-01},
journal = {Journal of Theoretical Biology},
volume = {254},
number = {3},
pages = {580--586},
publisher = {Elsevier},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
|
Nicolis, S. C.; Dussutour, A. Self-Organization, Collective Decision Making and Resource Exploitation Strategies in Social Insects Journal Article In: Ŧhe European Physical Journal B-Condensed Matter and Complex Systems, 65 (3), pp. 379–385, 2008. BibTeX @article{nicolis2008self,
title = {Self-Organization, Collective Decision Making and Resource Exploitation Strategies in Social Insects},
author = {Nicolis, {S. C.} and Dussutour, A.},
year = {2008},
date = {2008-01-01},
journal = {Ŧhe European Physical Journal B-Condensed Matter and Complex Systems},
volume = {65},
number = {3},
pages = {379--385},
publisher = {Springer},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
|
Nicolis, S. C.; Nicolis, C. Extreme Events in Bimodal Systems Journal Article In: Physical Review E, 78 (3), pp. 036222, 2008. BibTeX @article{nicolis2008extreme,
title = {Extreme Events in Bimodal Systems},
author = {Nicolis, {S. C.} and Nicolis, C.},
year = {2008},
date = {2008-01-01},
journal = {Physical Review E},
volume = {78},
number = {3},
pages = {036222},
publisher = {APS},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
|
Dussutour, A.; Nicolis, S. C.; Despland, E.; Simpson, S. J. Individual Differences Influence Collective Behaviour in Social Caterpillars Journal Article In: Animal Behaviour, 76 (1), pp. 5–16, 2008. BibTeX @article{dussutour2008individual,
title = {Individual Differences Influence Collective Behaviour in Social Caterpillars},
author = {Dussutour, A. and Nicolis, {S. C.} and Despland, E. and Simpson, {S. J.}},
year = {2008},
date = {2008-01-01},
journal = {Animal Behaviour},
volume = {76},
number = {1},
pages = {5--16},
publisher = {Elsevier},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
|
Nicolis, S. C. Kinetics of Aggregate Formation in Social Insects Journal Article In: Bulletin of Mathematical Biology, 69 (7), pp. 2387–2403, 2007. BibTeX @article{nicolis2007kinetics,
title = {Kinetics of Aggregate Formation in Social Insects},
author = {Nicolis, {S. C.}},
year = {2007},
date = {2007-01-01},
journal = {Bulletin of Mathematical Biology},
volume = {69},
number = {7},
pages = {2387--2403},
publisher = {Springer},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
|
Dussutour, A.; Colasurdo, N; Nicolis, S. C.; Despland, E. How Do Ants and Social Caterpillars Collectively Make Decisions? Incollection In: Hardy-Vall{'e}e, Benoit (Ed.): Cognitive Decision-Making : Empirical and Foundational Issues, pp. 48-65, Cambridge Scholars Pub., 2007. BibTeX @incollection{hardy-vallee_how_2007,
title = {How Do Ants and Social Caterpillars Collectively Make Decisions?},
author = {Dussutour, A. and Colasurdo, N and Nicolis, {S. C.} and Despland, E.},
editor = {Hardy-Vall{'e}e, Benoit},
year = {2007},
date = {2007-01-01},
booktitle = {Cognitive Decision-Making : Empirical and Foundational Issues},
pages = {48-65},
publisher = {Cambridge Scholars Pub.},
keywords = {},
pubstate = {published},
tppubtype = {incollection}
}
|
Nicolis, C.; Nicolis, S. C. Return Time Statistics of Extreme Events in Deterministic Dynamical Systems Journal Article In: EPL (Europhysics Letters), 80 , pp. 40003, 2007. BibTeX @article{nicolis2007return,
title = {Return Time Statistics of Extreme Events in Deterministic Dynamical Systems},
author = {Nicolis, C. and Nicolis, {S. C.},
year = {2007},
date = {2007-01-01},
journal = {EPL (Europhysics Letters)},
volume = {80},
pages = {40003},
publisher = {IOP Publishing},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
|
Dussutour, A.; Nicolis, S. C.; Deneubourg, J.-L.; Fourcassi'e, V. Collective Decisions in Ants when Foraging under Crowded Conditions Journal Article In: Behavioral Ecology and Sociobiology, 61 (1), pp. 17–30, 2006. BibTeX @article{dussutour2006collective,
title = {Collective Decisions in Ants when Foraging under Crowded Conditions},
author = {Dussutour, A. and Nicolis, {S. C.} and Deneubourg, {J.-L.} and Fourcassi{'e}, V.},
year = {2006},
date = {2006-01-01},
journal = {Behavioral Ecology and Sociobiology},
volume = {61},
number = {1},
pages = {17--30},
publisher = {Springer},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
|
Nicolis, S. C.; Theraulaz, G.; Deneubourg, J.-L. The Effect of Aggregates on Interaction Rate in Ant Colonies Journal Article In: Animal Behaviour, 69 (3), pp. 535–540, 2005. BibTeX @article{nicolis2005effect,
title = {The Effect of Aggregates on Interaction Rate in Ant Colonies},
author = {Nicolis, {S. C.} and Theraulaz, G. and Deneubourg, {J.-L.}},
year = {2005},
date = {2005-01-01},
journal = {Animal Behaviour},
volume = {69},
number = {3},
pages = {535--540},
publisher = {Elsevier},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
|
Deneubourg, J. L.; Nicolis, S. C.; Detrain., C. Optimality of Communication in Self-Organised Social Behaviour Incollection In: Self-Organisation and Evolution of Social Systems, pp. 25-35, Cambridge University Press, 2005. BibTeX @incollection{deneub2005,
title = {Optimality of Communication in Self-Organised Social Behaviour},
author = {Deneubourg, J. L. and Nicolis, {S. C.} and Detrain., C.},
year = {2005},
date = {2005-01-01},
booktitle = {Self-Organisation and Evolution of Social Systems},
pages = {25-35},
publisher = {Cambridge University Press},
keywords = {},
pubstate = {published},
tppubtype = {incollection}
}
|
Éric Le Bourg; Etienne Toffin; Antoine Massé Male emphDrosophila melanogaster flies exposed to hypergravity at young age are protected against a non-lethal heat shock at middle age but not against behavioral impairments due to this shock Journal Article In: Biogerontology, 5 (6), pp. 431–443, 2004. Links | BibTeX @article{Le-Bourg2004Male-emphDrosop,
title = {Male emphDrosophila melanogaster flies exposed to hypergravity at young age are protected against a non-lethal heat shock at middle age but not against behavioral impairments due to this shock},
author = {{É}ric Le Bourg and Etienne Toffin and Antoine Massé},
doi = {10.1007/s10522-004-3200-9},
year = {2004},
date = {2004-11-01},
journal = {Biogerontology},
volume = {5},
number = {6},
pages = {431--443},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
|
Nicolis, S. C. Fluctuation-Induced Symmetry Breaking in a Bistable System: A Generic Mechanism of Selection between Competing Options Journal Article In: International Journal of Bifurcation and Chaos, 14 (7), pp. 2399–2406, 2004. BibTeX @article{nicolis2004fluctuation,
title = {Fluctuation-Induced Symmetry Breaking in a Bistable System: A Generic Mechanism of Selection between Competing Options},
author = {Nicolis, {S. C.}},
year = {2004},
date = {2004-01-01},
journal = {International Journal of Bifurcation and Chaos},
volume = {14},
number = {7},
pages = {2399--2406},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
|
Nicolis, S. C. Dynamique Du Recrutement Alimentaire Et De L'Agregation Chez Les Insectes Sociaux PhD Thesis PhD thesis, 2003. BibTeX @phdthesis{nicolis2003dynamique,
title = {Dynamique Du Recrutement Alimentaire Et De L'Agregation Chez Les Insectes Sociaux},
author = {Nicolis, {S. C.}},
year = {2003},
date = {2003-01-01},
school = {PhD thesis},
keywords = {},
pubstate = {published},
tppubtype = {phdthesis}
}
|
Nicolis, S. C.; Detrain, C.; Demolin, D.; Deneubourg, J.-L. Optimality of Collective Choices: A Stochastic Approach Journal Article In: Bulletin of Mathematical Biology, 65 (5), pp. 795–808, 2003. BibTeX @article{nicolis2003optimality,
title = {Optimality of Collective Choices: A Stochastic Approach},
author = {Nicolis, {S. C.} and Detrain, C. and Demolin, D. and Deneubourg, {J.-L.}},
year = {2003},
date = {2003-01-01},
journal = {Bulletin of Mathematical Biology},
volume = {65},
number = {5},
pages = {795--808},
publisher = {Springer},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
|
Theraulaz, G.; Bonabeau, E.; Nicolis, S. C.; Solé, R. V.; Fourcassié, V.; Blanco, S.; Fournier, R.; Joly, J. L.; Fernández, P.; Grimal, a.; Dalle, P.; Deneubourg, J.-L. Spatial Patterns in Ant Colonies Journal Article In: Proceedings of the National Academy of Sciences of U.S.A, 99 (15), pp. 9645–9649, 2002. BibTeX @article{theraulaz2002spatial,
title = {Spatial Patterns in Ant Colonies},
author = {Theraulaz, G. and Bonabeau, E. and Nicolis, {S. C.} and Solé, R. V. and Fourcassié, V. and Blanco, S. and Fournier, R. and Joly, J. L. and Fernández, P. and Grimal, a. and Dalle, P. and Deneubourg, {J.-L.},
year = {2002},
date = {2002-01-01},
journal = {Proceedings of the National Academy of Sciences of U.S.A},
volume = {99},
number = {15},
pages = {9645--9649},
publisher = {National Acad Sciences},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
|
Nicolis, S. C.; Deneubourg, J.-L.; Soquet, A.; Demolin, D. Auto-Organisation Induite Par Des Fluctuations Dans Les Syst`emes Phonologiques Inproceedings In: XIII`emes Journ'ees sur la Parole, Aussoy, France, 2000. BibTeX @inproceedings{nicolisauto,
title = {Auto-Organisation Induite Par Des Fluctuations Dans Les Syst`emes Phonologiques},
author = {Nicolis, {S. C.} and Deneubourg, {J.-L.} and Soquet, A. and Demolin, D.},
year = {2000},
date = {2000-01-01},
booktitle = {XIII`emes Journ'ees sur la Parole, Aussoy, France},
keywords = {},
pubstate = {published},
tppubtype = {inproceedings}
}
|
Nicolis, S. C.; Deneubourg, J.-L. Emerging Patterns and Food Recruitment in Ants: An Analytical Study Journal Article In: Journal of Ŧheoretical Biology, 198 (4), pp. 575–592, 1999. BibTeX @article{nicolis1999emerging,
title = {Emerging Patterns and Food Recruitment in Ants: An Analytical Study},
author = {Nicolis, {S. C.} and Deneubourg, {J.-L.}},
year = {1999},
date = {1999-01-01},
journal = {Journal of Ŧheoretical Biology},
volume = {198},
number = {4},
pages = {575--592},
publisher = {Elsevier},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
|
