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Population sizes decrease at higher trophic levels. If they increased the insects population would decrease meaning there would be less food available for the birds so their population size would then decrease. Look at the relationships between predator and prey species for more information

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Does the population size increase or decrease at higher trophic levels in the pyramid of numbers of an ecosystem consisting of a tree insects (that are herbivores) and birds feeding on the insects?

Population sizes decrease at higher trophic levels. If they increased the insects population would decrease meaning there would be less food available for the birds so their population size would then decrease. Look at the relationships between predator and prey species for more information


What is one effect of effect of immigration on population living in an ecosystem?

The population will decrease-- APEX


Biotic factor that affects the size of a population in a specific ecosystem?

Predation is a biotic factor that can affect the size of a population in a specific ecosystem. The presence of predators can limit the growth of a population by preying on individuals. This can result in a decrease in the population size.


How will this effect the ecosystem as a whole?

The shrimp population will increase which will cause an increase in the squid population.


What might happen if the population of hawks in ecosystem grows very large?

there would be less nutrients for the plant.


How might a large omnivore change the flow of energy in figure 3-4 diagram 2?

A large omnivore in the ecosystem would increase energy consumption by preying on various herbivores and potentially reducing their populations. This would lead to a decrease in herbivores consuming plants, which may lead to changes in plant population dynamics. Overall, the presence of a large omnivore would impact energy flow by altering the balance between producers, herbivores, and carnivores in the ecosystem.


Which part of an ecosystem would be hurt if humans over hunted a herbivore?

Other herbivores


In a certain ecosystem owls are predators for mice. The owl population increases and they eat more mice. This causes the mouse population to decrease. What happens next?

the population of owls decreases


What factors affect the populations in an?

One factor that can affect the populations in an ecosystem is that, if an ecosystem had owls with no predators, the owl population would increase and eat all the mice in the ecosystems. The population of the mice would decrease more and more.


What would happen to the food web if mountain lions or sharks became vegetarians?

the producers would decrease in population as the herbivores which the sharks would have ate, would grow in population.


In a certain ecosystem, owls are predators for mice. The owl population increases, and they eat more mice. This causes the mouse population to decrease. What happens next?

the population of owls decreases. (Apex)


How might a chipmunk be affected if the decomposers in this ecosystem decrease a lot.?

How can a chipmunk be offected if the decomposers in this ecosystem decrease a lot?