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 ===== Assignment =====
-Propose a mathematical model to investigate mutualistic investment, its potential trade-offs and their consequences for the longevity of ant species coexistence in this tripartite interaction involving a myrmecophyte (plant), two ant species which compete to occupy its domatia and a fungus they cultivate.
+Propose a mathematical model to investigate mutualistic investment, its potential trade-offs and their consequences for the persistence of ant species coexistence in this tripartite interaction involving a myrmecophyte (plant), two ant species which compete to occupy its domatia and a fungus that ants cultivate.
 ===== Suggested questions =====
-  - A possible consequence of competing strategies is exclusion of the worse strategy. Although the better ant mutualism is the one that provides more benefits to its host plant, its lower host–plant exploitation does not give this ant species a competitive advantage. Can your model support local coexistence of the two ant species? Under what circumstances does your model lead to the exclusion of either one of the species?
+  - Is the coexistence of the two ant species possible?
+  - Will the scenario proposed by Orivel //et al.// lead to competitive exclusion, as proposed by the authors ?
   - Is there an optimal proportion of the two strategies in the worker force? (A proportion that leads to the greatest ant population, or leads to the greatest growth rates...)
-  - Can your model help elucidate the situation described in the recent article of Orival //et al.//?
 Further well-grounded questions from the group are welcome.
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 ===== References =====
-Orivel Jérôme, Malé Pierre-Jean, Lauth Jérémie, Roux Olivier, Petitclerc Frédéric, Dejean Alain and Leroy Céline. **Trade-offs in an ant–plant–fungus mutualism** 284 Proc. R. Soc. B. 2019.[[http://doi.org/10.1098/rspb.2016.1679]].
+Jérôme Orivel, Pierre-Jean Malé, Jérémie Lauth, Olivier Roux, Frédéric Petitclerc, Alain Dejean and Céline Leroy. **Trade-offs in an ant–plant–fungus mutualism** 284 Proc. R. Soc. B. 2019.[[http://doi.org/10.1098/rspb.2016.1679]].
 Leroy, C., Séjalon‐Delmas, N., Jauneau, A., Ruiz‐González, M.‐X., Gryta, H., Jargeat, P., Corbara, B., Dejean, A. and Orivel, J. **Trophic mediation by a fungus in an ant–plant mutualism.** Journal of Ecology, 99: 583-590. 2011. [[https://doi.org/10.1111/j.1365-2745.2010.01763.x]].
 Dejean, Alain; Solano, Pascal J., Ayroles, Julien; Corbara, Bruno and Orivel, Jérôme  Arboreal. **Ants build traps to capture prey**. Nature volume 434, pg. 973 (2005). [[https://www.nature.com/articles/434973a]].