Dries BONTE

Department of Biology Ghent University, Belgium

Le vendredi 21 décembre - 11h30 Campus Triolet Univ Montpellier: amphi 23.01 - Bât. 23

 (Seminar in English)

Dispersal, the movement of organism from their place of birth to their location of reproduction, is an essential trait in life history and tightly coupled to fitness. A thorough understanding of both the ecological and evolutionary causes and consequences can therefore only be achieved by putting the fitness concept central. I will first outline this theoretical framework and provide insights on how individuals can achieve an optimal dispersal strategy, and why optimal strategies are different among individuals. Next, I will provide a selection of empirical and theoretical examples that demonstrate the consequences of (evolved) changes in dispersal on both metapopulation- and metacommunity dynamics. By closely matching empiricism with theoretical predictions, I will be able to pinpoint why current theory fails in advancing the field of movement ecology towards a predictive discipline in spatial ecology.

Recent publications:

Bonte, D., De Roissart, A., Wybouw, N. & Van Leeuwen, T. (2014). Fitness maximization by dispersal: evidence from an invasion experiment. Ecology 95: 3104-3111

Van Petegem, K., Moerman, F., Dahirel, M., Fronhofer, E., M. Vandegehuchte, N. Wybouw, T. Van Leeuwen, Stoks, R. & Bonte, D. (2018). Kin competition accelerates range expansion in an arthropod herbivore. Ecology Letters 21: 225-234

Hillaert, J., Vandegehuchte, M., Hovestadt, T. & Bonte, D. (2018). Information use during movement regulates how fragmentation and loss of habitat affect body size. Proc. R. Soc. Lond. B. 285 20180953

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Le vendredi 7 décembre - 11h30 Campus Triolet Univ Montpellier: amphi 23.01 - Bât. 23

 (Seminar in English)

In this talk I will present some observations of the current state of scientific publishing and where it may be headed in the near future. I will discuss how journals are run, article access and publication costs, impact factors, and some future challenges and opportunities. The parties that are likely to be important to the future of publishing are scientists, publishing companies, and decision-making committees (editorial boards, job search committees, and grant committees).  I highlight the responsibility of scientists as committee members in ensuring that the future of publishing prioritizes their needs.

Recent publications:

Hochberg M.E. 2014. Good science depends on good peer review (and Reply). Ideas in Ecology and Evolution 7: 77–83

Hochberg M.E. 2010. Youth and the tragedy of the reviewer commons. Ideas in Ecology and Evolution 3: 8-10

Hochberg M.E., Chase J.M., Gotelli N.J., Hastings A. & Naeem S. 2009. The tragedy of the reviewer commons. Ecology Letters 12: 2-4

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Le vendredi 14 décembre - 11h30 Campus Triolet Univ Montpellier: amphi 23.01 - Bât. 23

 (Seminar in English)

One of the major questions in evolutionary biology concerns the study of biodiversity. In my research, I'm interested in understanding what are the driving forces behind the process that generates biodiversity through time and space (e.g., rapid radiations, key innovations and mass extinctions). In my recent work we have focused on two main aspects: diversification-rate variation through time and diversification-rate variation among lineages. Diversification-rate variation through time affects all lineages equally within a group and might be driven by environmental factors (external/abiotic). On the other hand, diversification-rate variation affects only a subset of lineages and might be driven by lineage-specific factors (biotic). These processes can be studied through the fossil record and/or phylogenies estimated from molecular data. Most of my work has been focused on estimating diversification rates from molecular phylogenies but in recent work we have extended existing methods to include both extant and extinct taxa. In this talk, I will present an overview over recent advances in modeling and estimating diversification rates through time and space.

Recent publications:

S Höhna, T Stadler, F Ronquist and T Britton (2011) Inferring speciation and extinction rates under different species sampling schemes. Molecular Biology and Evolution 28: 2577-2589.

S Höhna, MJ Landis, TA Heath, B Boussau, BR Moore, N Lartillot, JP Huelsenbeck and F Ronquist (2016) RevBayes: Bayesian phylogenetic inference using graphical models and an Interactive model-specification language. Systematic Biology 65: 726-736.

BR Moore, S Höhna, MR May, B Rannala and JP Huelsenbeck (2016) Critically evaluating the theory and performance of Bayesian analysis of macroevolutionary mixtures. Proceedings of the National Academy of Sciences of the USA 113: 9569-9574.

FL Condamine, J Rolland, S Höhna, FAH Sperling, and I Sanmartín (2018) Testing the role of the Red Queen and Court Jester as drivers of the macroevolution of Apollo butterflies. Systematic Biology 67: 940-964.

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