Leopard seals would become apex predators, leading to a stable ecosystem despite the loss of plankton.

Penguins would shift to consuming plankton directly, maintaining their population levels despite the ecosystem shift.

Krill populations would decrease, leading to cascading effects up the food chain, affecting Arctic cod, baleen whales, and other predators.

Baleen whales would adapt by consuming more Arctic cod, leading to an increase in krill populations.

The mouse population would increase due to reduced predation, leading to a decline in grass and trees.

The eagle population would increase due to a greater number of prey available.

Frogs would become the primary predators of mice, balancing the ecosystem.

The deer population would decline as snakes primarily feed on deer.

The grass population would decline due to overgrazing, potentially leading to food shortages for rabbits and other herbivores.

The mouse population would decrease as they would have to compete with rabbits for food.

The owl population would decline due to competition with mice for prey.

The grains would grow faster since grasshoppers do not consume them directly.

Zooplankton and fish populations would decline due to toxic conditions, reducing the food supply for krill, seagulls, and larger predators.

The killer whale population would increase because algae blooms make it easier for them to hunt their prey.

The blue whale population would increase due to an abundance of krill, as they thrive in algae-rich environments.

Elephant seals and leopard seals would switch to consuming seaweed to compensate for the loss of krill and fish.

The ecosystem would remain stable because native species would quickly adapt to the presence of the invasive species.

The biodiversity of the ecosystem would increase because the invasive species provides more food for native predators leading to ecosystem stability.

The invasive species would have no long-term effect since predators would eventually control its population leading to ecosystem stability

The native species populations would decline due to increased competition for food and habitat, potentially leading to ecosystem instability.

Biodiversity will increase as new plant species replace the lost trees, leading a stable ecosystem

Biodiversity will remain the same as there are no major effect, leading to a stable ecosystem

Biodiversity will decrease due to habitat loss, leading to an unstable ecosystem

Biodiversity will increase due to improved air quality from fewer trees absorbing carbon dioxide

Stability will increase due to organisms being able to easily adapt to pollutants.

Stability will decrease due to fish dying and disruptions in the food web

Stability does not change due to having no long-term effects since the river can naturally purify itself.

Stability of fish and other marine life due to the additional nutrients in the water

Increased biodiversity due to the migration of wildlife to urban areas, leading to better coexistence with humans.

Wildlife populations increase due to new shelter opportunities in urban areas leading to a more stable ecosystem.

There are no major effects, as animals can easily adapt to urban environments creating a more stable ecosystem.

Loss of biodiversity due to habitat destruction and separation causing the ecosystem to become less stable.

Plants

Grasshopper

Rabbit

Snakes

Jaguars receive the most amount of energy because they are top/apex predators who consume few organisms.

Aquatic plants have the least amount of energy because they are in the first trophic level.

Harpy eagles are apex predators which receive most of the energy at the 4th trophic level.

Terrestrial plant matter has the most amount of energy because they are producers receiving energy from sunlight.