Support this with evidence: In this food web model, plants A, B and C are the autotrophic organisms that serve as the producers of the food web model. The herbivores A, B and C serve as the primary consumers meanwhile the omnivores A and B serve as the secondary consumers of this model. Then, the last level is the top predator. To describe the model formulated, the populations of these organisms, in a particular ecosystem, was recorded over a period of 61 days. It is observed that at Day 0, the plant populations are the highest, which is around 5000. The herbivore populations are found in a range of 2000-3000 and the omnivore populations can be seen to be below 1000. With gradual increase in the number of days, we can see here that the food chain is coming into play. The green plants are being consumed by the herbivores, leading to fluctuations in the plant populations. The herbivores are, in turn, being consumed by the omnivores. We can see that with increasing time, only the Plant A is existing and the two are perishing. The Plant B and Herbivore A are maintaining a more or less constant population between 1000-2500. The omnivores, on the other hand, need to be lesser in number in order to maintain the trophic levels. This is evident from the graph as well. They maintain their population at a constant number throughout the 61 days. The most important factor which holds together this food chain in the ecosystem, the top predator, is seen to be minimum in number. This balances out all the other organisms in the food chain. If any one of the organisms had to be omitted from this food chain, then the entire ecosystem would collapse.
Support this with evidence:
In this food web model, plants A, B and C are the autotrophic organisms that serve as the producers of the food web model. The herbivores A, B and C serve as the primary consumers meanwhile the omnivores A and B serve as the secondary consumers of this model. Then, the last level is the top predator. To describe the model formulated, the populations of these organisms, in a particular ecosystem, was recorded over a period of 61 days. It is observed that at Day 0, the plant populations are the highest, which is around 5000. The herbivore populations are found in a range of 2000-3000 and the omnivore populations can be seen to be below 1000. With gradual increase in the number of days, we can see here that the food chain is coming into play. The green plants are being consumed by the herbivores, leading to fluctuations in the plant populations. The herbivores are, in turn, being consumed by the omnivores.
We can see that with increasing time, only the Plant A is existing and the two are perishing. The Plant B and Herbivore A are maintaining a more or less constant population between 1000-2500. The omnivores, on the other hand, need to be lesser in number in order to maintain the trophic levels. This is evident from the graph as well. They maintain their population at a constant number throughout the 61 days. The most important factor which holds together this food chain in the ecosystem, the top predator, is seen to be minimum in number. This balances out all the other organisms in the food chain. If any one of the organisms had to be omitted from this food chain, then the entire ecosystem would collapse.
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