3 Flashcards
Scenario: A drought strikes the Serengeti, reducing the availability of water and food for herbivores like wildebeest.
Question: How might this drought affect both the wildebeest population and the predator population in the Serengeti?
This drought affects both the wildebeest population and the predator population drastically. The wildebeest population would be affected by its food. If there’s drought it can reduce the amount of growth of plants. Leading to mortality and low birth rates. The predator population would be affected by this since most of their prey are herbivores.
Scenario: A new predator is introduced into the Serengeti, where lions are already the dominant predator.
Question: How might this new predator affect the existing predator-prey dynamics?
This new predator affects the existing predator-prey dynamics by competition. Too many predators can eventually reduce the population of prey in an area affecting the overall population. This eventually leads to the disruption of the ecosystem.
Scenario: Human activity increases the amount of carbon dioxide in a region of the Serengeti due to deforestation.
Question: How could this impact the carbon cycle and the ecosystem?
: This impacts the carbon cycle by air pollution affecting plants, animals, and the environment. The impact that it has in the ecosystem is global warming. And this causes efficient drought especially in the Serengeti region.
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Scenario: The population of rabbits in an area grows rapidly due to a lack of predators.
Question: What might happen to the rabbit population over time, and how might this affect the ecosystem?
The rabbit population can increasingly grow overtime, affecting the growth of grasses. Lack of grass growth can prevent other species from surviving in which competition can occur by that time.
Scenario: A large number of herbivores migrate into a region, leading to overgrazing.
Question: What impact might this have on the ecosystem’s plant populations
The impact that this has on the ecosystem’s plant population, by affecting it’s growth. Many plants will be affected and many herbivores may consume main important parts of the ecosystem. One specific example of this is when herbivores contain or eat too much plant material, it causes a collapse in the food chain. Affecting the herbivores population and its predators.