2019:groups:g3:start
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**Group 3** | **Group 3** | ||
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If you are a group member login to edit this page, create new pages from it, and upload files. | If you are a group member login to edit this page, create new pages from it, and upload files. | ||
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+ | ===== Introduction ===== | ||
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+ | {{ 2019: | ||
+ | Symbiosis can be defined as "an interaction (positive, negative, or neutral) in which two species exist in intimate physical association for most or all of their lifetimes and are physiologically dependent on each other" [1]. This is the interaction between the bacteria // | ||
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+ | // | ||
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+ | They hypothesize that there may be a reproductive cost for the bacteria associated with inhibiting other strains, and experimentally test it. Their results suggest that, indeed, on a non-competitive environment, | ||
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+ | <WRAP clear></ | ||
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+ | <WRAP third column right> **Figure**: Top - Nematode (// | ||
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+ | <WRAP clear></ | ||
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+ | ===== Assignment ===== | ||
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+ | Propose and analyse a mathematical model that incorporates the interactions and describes the dynamics of the species in this system. | ||
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+ | ===== Questions & Suggestions ===== | ||
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+ | * Does your model allow some kind of coexistence between inhibiting and non-inhibiting bacteria? | ||
+ | * Can the dynamics of the insect host drastically change your conclusions? | ||
+ | * The bacteria used in the experiment (both inhibiting and non-inhibiting) are equally able to resist inhibition. Does incorporating bacteria less sensitive to bacteriocin in the model change your main results? | ||
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+ | ===== References ===== | ||
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+ | - Levin, Simon A., et al., editors. The Princeton Guide to Ecology. Princeton University Press, 2009. | ||
+ | - Bertoloni Meli S, Bashey F. Trade‐off between reproductive and anti‐competitor abilities in an insect–parasitic nematode–bacteria symbiosis. Ecol Evol. 2018; | ||
+ | - Martens , E. C. , Heungens , K. , & Goodrich-Blair , H. (2003). Early colonization events in the mutualistic association between Steinernema carpocapsae nematodes and Xenorhabdus nematophila bacteria . |
2019/groups/g3/start.1543236649.txt.gz · Last modified: 2024/01/09 18:45 (external edit)