Sacados the ICC board , recycle the three parts of which comprises a series of explanations on the organization of ecosystems. Where does the complexity of them?. First
say that the complexity of ecosystems is due to the existence of certain "rules" or individual conduct, which all together make up the ecosystem. It is like a box if echárais a lot of Lego pieces of various sizes and colors, removeis the box and as a result, the interaction between the various parts has been more complex.
Then, the first brick:
First agencies, as individual entities, are "designed to" survive, grow and multiply (ie without using creative intelligence, which simply are not as competent playing are eliminated). Using a simile economist: organisms are selfish.
As they increase the number of organisms to form an ecosystem, the sum total of individual selfishness causes the system is optimal (yes gentlemen, Mr Adam Smith , ecology was born from the classical economy )
In an environment with unlimited resources and unlimited space, without competition or predation, our bodies grow exponentially (Dixit Malthus, an economist). These conditions do not exist in nature. The closest we have are the best means of bacterial cultures and for a time. As there are limitations, populations in the absence of competition and predation follow a logistic curve in the form of S, where the asymptote is the environmental carrying capacity.
When we introduce other agencies, as there are phenomena of competition and predation. The growth model will be similar to logistics, in which carrying capacity is determined by the population of another species.
Two species, the to and b . Say to are rabbits and foxes are b . Between them is a relationship predation.
foxes eat rabbits, so the more rabbits you have, the foxes will be. The more foxes, the less rabbits there. That's pretty funny, do not you remember the curves of supply and demand used in economic theory?. These curves are something like this:
is a system that has to balance, in which the number of rabbits is adequate to support a fox population is not large enough to charge all rabbits. Sure, but tend toward equilibrium is not a static system. There will be growth in the rabbit population (for whatever reason), accompanied by increases in the fox population. Increased pressure from predators and the rabbit population again falls, consequently the fox too. As has become foxes have low pressure, increasing then the rabbit ... say that both people are giving "boats" in a coupled manner.
This is just one of the possible relationships, there are other as commensalism, parasitism, symbiosis ... (If you look at the link behind each one there is a plus, and another less, which reflects how a population will act against the other.)
Well, this is the demographic: we see that there are limitations on growth (or selfishness) of populations. These limitations are "coupled" so that ecosystems tend to balance, because otherwise, tend to fail. Just say that these models are mathematical simplifications of processes that are much more complex.
Well, in future deliveries, the other two bricks
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