This is the third brick on ecosystems. First brick
Second brick
Once explained the issue of demography and nutrients, we will try to unify. I therefore propose a simulation of what would happen in the case of ecological succession.
one hand we have a limited amount of nutrients.
Moreover we have a lot of selfish organisms with unlimited desire to consume
(another relative to the economy, which is the science that studies how limited resources are allocated to our limited desires)
from an environment where there is nothing only flow of nutrients. Arrive early settlers, who have to be organisms capable of using light and inorganic materials to grow, ie, plants (and bacteria, but since these are everywhere obvious improvement chain yet). Plants are primary producers, and take advantage of the best way to know the resources to produce biomass (organic matter).
two circumstances are given here. On one hand it will create the conditions of competition for these nutrients, so they go to see favored plants that use these nutrients better. Moreover the plants are different from each other. Each can specialize in a particular type of light or nutrients (various types of algae use different types of pigments to take advantage of different wavelengths, and different sources nitrogen, for example will determine different strategies to use it). This specialization will reduce the competition as it will encourage a greater diversity of strategies and better use of resources. Another thing to consider is that this use of resources will not be perfect, and inevitably generate waste.
Plants will grow and grow until they run out of resources (logistic model). Then enter the game the first predators: those who eat the plants. They may also be different from each other, have different strategies to exploit the primary production and produce waste. Would follow a model similar to the fox and rabbit.
We can introduce more predators, which eat the plant eaters, who eat the plants they eat, those who eat them all ... this would give a similar pattern to that of rabbits and foxes, but much more complex. We already have a trophic pyramid.
As we have said, there will be waste, even the same individuals once they die. Thus predators than are needed decomposers (remember we turn to bacteria). One of the main advantages is that they return these decaying organic matter to inorganic, so it can be exploited again by plants. We have built
an ecosystem (very sencillito). May arise other interspecific relationships (not as important as predation, but equally interesting). In conclusion it is like completing a Sudoku go looking for holes to make ends meet. These holes is what is called ecological niches, each agency has to go into place.
Well, I think this is more or less explained the theme of ecosystems. I tried to sum up something like 240 hours of Ecology and about 60 systems modeling (with touches of other subjects). So there may be errors, counterexamples, and all you want.
0 comments:
Post a Comment