Wolf as a Keystone Species

Front

What is a keystone species?

Back

A keystone species is a species that has a disproportionately large effect on its environment relative to its abundance. Its presence or absence can significantly impact the ecosystem.

Front

Why were wolves reintroduced to Yellowstone National Park?

Back

Wolves were reintroduced to control the deer population, which had grown excessively due to the absence of natural predators.

Front

What does 'reintroduction' mean in the context of wildlife?

Back

Reintroduction refers to the process of bringing a species back to an area where it once lived but was extirpated or extinct.

Front

How did the reintroduction of wolves affect deer behavior?

Back

The reintroduction of wolves caused deer to avoid certain areas, leading to the recovery of vegetation in those regions.

Front

What is the impact of wolves on coyote populations?

Back

Wolves prey on coyotes, which can lead to an increase in populations of smaller animals like rabbits and mice.

Front

What is trophic cascade?

Back

A trophic cascade is an ecological phenomenon triggered by the addition or removal of top predators, which leads to changes in the population sizes of species at lower trophic levels.

Front

What role do wolves play in maintaining biodiversity?

Back

Wolves help maintain biodiversity by controlling herbivore populations, which in turn allows various plant species to thrive and supports a diverse ecosystem.

Front

What is the significance of vegetation recovery in ecosystems?

Back

Vegetation recovery is significant because it restores habitats, improves soil quality, and supports a wider range of animal species.

Front

How can the absence of a keystone species affect an ecosystem?

Back

The absence of a keystone species can lead to overpopulation of certain species, loss of biodiversity, and degradation of the ecosystem.

Front

What changes occurred in Yellowstone's physical geography due to wolves?

Back

Wolves' predation on deer led to changes in grazing patterns, which allowed vegetation to recover and altered the landscape, including riverbank stabilization.