A trophic cascade is one of the ecological phenomena which are being triggered by either the addition or removal of top predators or consumers. Trophic cascade involves the reciprocal variations in the populations of predators/consumers and prey in the food chain. These variations eventually lead to drastic changes in the structure of the ecosystem as well as in the recycling of nutrients.
When the number of carnivores is increased, the number of herbivores is decreased and consequently, the population of primary producers such as plants and phytoplankton is increased. Trophic cascade also influences plant production, nutrients’ recycling, producer communities, and their metabolic rates.
Predation by one flour beetle species on another can be used as
In chapter 14 we have seen how a herbivorous stream insect controls
How was the amount of food that Gause (1934) provided
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Predation is one of the processes by which one organism exploits another
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In his experiments on competition between T. confusum and T.
Discuss how mathematical theory, laboratory models, and field experiments have
Explain the roles of food and predators in producing cycles of abundance
What evidence is there that variation in atmospheric CO 2 concentration is
