Implement competition in SES

[Lumphie]

Sander used a strength of viability selection on male mating type(sigma_s or sq (in the model)), basically giving the male traits a cost distribution.

Right now there is no competition in my model, not for the ecological type and not for the male trait.

• [x] Decide (not) to implement competition
• [x] Decide to compete for eco type or eco type and male trait
• [x] Think of where to implement it (check if babies are fit enough, or kill of parents at the start at of a new generation)
• [x] Implement it

[Lumphie]

I will have to implement competition to get disruptive selection.

Not sure yet if I want the male trait to have a cost.

Thinking of not letting the parents mate if their fitness is too low, because it doesn't make sense that a very low fitness parent with a very high fitness parent can get a viable baby (because of averaging the fitness) The lower fitness parent should not mate because its fitness is not high enough to mate.

[Lumphie]

Update:

Still not sure if I want to compete for male trait. Feels counter intuitive to remove it since I need selection on the male trait as well.

[richelbilderbeek]

Also, OTOH, @rsetienne suggested to just use big populations: due to stochasticity you'll get a certain number of species that is more or less stable.

[Lumphie]

Can't test that now, GUI is giving errors :\

[richelbilderbeek]

I am (try to) working on it.

[Lumphie]

There is competition but no disruptive selection Argh! :baby_chick: :hammer:

[richelbilderbeek]

I guess I've fixed the GUI, unassigning myself.