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Thread: Evolutionarily stable strategies

  1. #1 Evolutionarily stable strategies 
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    Hi,

    I would like to know why the evolutionarily stable strategy concept is important in behavioral ecology ?

    Thank you


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  3. #2  
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    Explain your terms, they are unfamiliar to me, and I am working in the behavioral science field. I have never heard of "evolutionarily stable strategy concept ". Tell me what it is and I can maybe tell you why it is important.


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  4. #3  
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    See my response in your other thread.

    If this is a homework or other assignment .... we..will..not..do..it..for..you.

    Give us a few more details or a bit more background if you want specific help with a specific topic.
    "Courage is what it takes to stand up and speak; courage is also what it takes to sit down and listen." Winston Churchill
    "nature is like a game of Jenga; you never know which brick you pull out will cause the whole stack to collapse" Lucy Cooke
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  5. #4  
    Life-Size Nanoputian Flick Montana's Avatar
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    I always tell my students, "You learn better when you fail first."

    At least give us what you think could be the right answer. If you're wrong, we won't have you tarred and feathered. Never ask someone a question without supplying at least some reasonable answer.
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  6. #5  
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    @adelady:This is not a homework, these questions are extracted from exam's annales and I'm trainning on this for my future exams. I should have mentioned that at the beginning, I'm sorry...
    For some questions I don't have enough elements of response that why I'm asking you.

    @Sealef: You work on behavioural science and you don't know this ? Surprising, because it's very common on behavioural ecology. Evolutionarily stable strategy - Wikipedia, the free encyclopedia

    @Flick montana: I would say because ESS concept provide a rigourous framework and that could explain some counter-intuitive "dominant" behaviours observed in natural populations. I don't see other reasons..

    Ps: Sorry if there are grammatical mistakes, english is not my mother tongue...
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  7. #6  
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    I work with actual humans who are behaving in various irrational ways. Real people do not always or even often behave rationally. Game theory which is predicated on rational behavior fails to discribe actions of real people. Or perhaps there are simply way more axis to the graph for real people. How do you graph more than 2 variables? Say a prisoners delema with, oh 12 prisoners an unknown number of which are innocent, an unknown number of which are guilty but of much worse crimes, and some of which may have an irrational fear of being confined.

    As my insructor in symbolic logic taught us many years ago ,"Symbolic logic has no real world application."
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  8. #7  
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    Quote Originally Posted by Sealeaf View Post
    I work with actual humans who are behaving in various irrational ways. Real people do not always or even often behave rationally. Game theory which is predicated on rational behavior fails to discribe actions of real people. Or perhaps there are simply way more axis to the graph for real people. How do you graph more than 2 variables? Say a prisoners delema with, oh 12 prisoners an unknown number of which are innocent, an unknown number of which are guilty but of much worse crimes, and some of which may have an irrational fear of being confined.

    As my insructor in symbolic logic taught us many years ago ,"Symbolic logic has no real world application."
    Initially game theory was designed for rational behavior as you said (above all for economic issues), but after thank to John Maynard Smith it was used for evolutionary issues with the idea of success of different strategies in natural populations. But these strategies or not rational at all, it's more a "behaviour policy" like to be aggressive or peaceful (etc..) inherited (a genetic "programmation").
    So, unlike economics, the payoffs for games in biology are often interpreted as corresponding to fitness. The focus has been less on equilibria that correspond to a notion of rationality, but rather on ones that would be maintained by evolutionary forces.
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  9. #8  
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    It's awkward I realised that I answered by myself at the end

    Well, thanks !
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  10. #9  
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    This is not a homework, these questions are extracted from exam's annales and I'm trainning on this for my future exams.
    OK, fine.

    This is some general advice you can use for note-writing, study revision and in assignments/essay style answers to exam questions.

    1. Write out, copy if you have to, a few key sentences from your notes or your textbook or an important reference on the topic.

    2. Look at what you've written. Then sort them if you have to to make sure they follow logically from first to last. Make that change in your document.

    3. Now. Use each of those sentences as the first sentence in a properly constructed paragraph. Write the four, or more, paragraphs.

    4. Read what you've written. If any of the paragraphs merely twist and turn with the single concept or information in the first sentence, you need to work out whether you've missed something in the source material or in your thinking. This is the point where you can identify gaps in your knowledge or in your logic.

    5. Do it all again. Why? Because the work you've done can change your ideas about what you include as one or more of those "key" sentences you started with the first time.

    6. This is an excellent strategy for those writers' block occasions. You write two or three sentences on any topic at all, even creative writing. Then you keep on expanding, using sentences as leading concepts in paragraphs. For science topics it allows you to introduce data and key facts at appropriate, logical points. For other topics it ensures you don't allow yourself to get carried away with writing far too much on one or two points and then find you're going to overshoot your 1500 or 3000 word limit long before you get near the conclusion or writing the introduction.

    7. For study purposes, it exposes the factual or logical holes in your learning. Terrific strategy all round until you come up with a personal approach that suits you better.
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    "Courage is what it takes to stand up and speak; courage is also what it takes to sit down and listen." Winston Churchill
    "nature is like a game of Jenga; you never know which brick you pull out will cause the whole stack to collapse" Lucy Cooke
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