Dr Rana Hamza Shakil thank you for your contribution to the discussion

Predator-prey relationships are also vital in maintaining and even increasing the biological diversity of the particular ecosystem, and in helping to keep the ecosystem stable. This is because a single species is kept under control by the species that uses it for food. Predators keep the prey population under control. The prey species could achieve very high population densities and cause ecosystem instability in the absence of predators. Predators also help in maintaining species diversity in a community, by reducing the intensity of competition among competing prey species. Predators have profound effects throughout their ecosystems. Dispersing rich nutrients and seeds from foraging, they influence the structure of ecosystems. And, by controlling the distribution, abundance, and diversity of their prey, they regulate lower species in the food chain, an effect known as trophic cascades. Predation is an interaction in which one organism, the predator, eats all or part of the body of another organism, the prey. Herbivory is a form of predation in which the prey organism is a plant. Predator and prey populations affect each other's dynamics. Predator and prey populations cycle through time, as predators decrease numbers of prey. Lack of food resources in turn decrease predator abundance, and the lack of predation pressure allow prey populations to rebound.Predator-prey cycles are based on a feeding relationship between two species: if the prey species rapidly multiplies, the number of predators increases until the predators eventually eat so many prey that the prey population dwindles again. Soon afterwards, predator numbers likewise decrease due to starvation. The relationships between predators and prey play an important role in structuring ecological communities, with predators influencing the dynamics of their prey in ways that cascade through ecosystems to affect processes such as productivity, biodiversity, nutrient cycling, disease dynamics, carbon storage, and more. Predation is nature's way of transferring energy from lower to higher trophic levels. Predators can be herbivores or carnivores. Predators act as conduits for energy transfer across trophic levels, help keep prey populations under control and help in maintaining species diversity.

L'equilibrio è la parola chiave. Uccidere un ultimo esemplare, non è selezione ma distruzione

Predator prey cycle is a form of relationship in which a higher animal called the predator feeds on the lower animal called prey. It has a significant effect on population dynamics of the ecosystem. While the predator helps to check the population of the prey not to exceed the carrying capacity of the area, the population of the predator also must not be blown up as this is not good for adjoining community, especially when predators stray out of the protected area in search of prey. Hence, the equilibrium of the population must be balance in order to have a balance ecosystem.

Dr Olakunle Segun David thank you for your contribution to the discussion

Predators keep the prey population under control. The prey species could achieve very high population densities and cause ecosystem instability in the absence of predators. Predators also help in maintaining species diversity in a community, by reducing the intensity of competition among competing prey species. Predator and prey populations cycle through time, as predators decrease numbers of prey. Lack of food resources in turn decrease predator abundance, and the lack of predation pressure allow prey populations to rebound. The relationships between predators and prey play an important role in structuring ecological communities, with predators influencing the dynamics of their prey in ways that cascade through ecosystems to affect processes such as productivity, biodiversity, nutrient cycling, disease dynamics, carbon storage, and more. As these populations continue to reproduce over time, the actions of natural selection can also change the species to make them better predators, or more defensive prey. Either way, this adaptation changes the entire predator prey dynamic. Predator-prey cycles are based on a feeding relationship between two species: if the prey species rapidly multiplies, the number of predators increases until the predators eventually eat so many prey that the prey population dwindles again. Prey populations rapidly increase. This is followed by an increase in the predator population: As predators eat the prey, their population goes down because there is less to eat and the predator population also goes down. Predator-prey cycles are based on a feeding relationship between two species: if the prey species rapidly multiplies, the number of predators increases until the predators eventually eat so many prey that the prey population dwindles again. Soon afterwards, predator numbers likewise decrease due to starvation. When preys are high, predators increase and reduce the number of prey by predation. When predators are low, prey decrease and thus reduce the number of predators by starvation. These predator/prey relationships thereby promote stability in ecosystems and enable them to maintain large numbers of species,