Question

Cause - Less number of wolves.
What is the effect of it ?

Answer 1

Answer:

Here's Your Answer

Explanation:

If wolves went extinct, the food chain would crumble. The elk and deer population would increase (see chart on next slide) and eat the cow and other livestock's food. Then we, the Humans, would have a food shortage in beef and dairy and possibly shortages in other food products too.

Answer 2

Wolves can generate trophic cascades – ecological effects that ripple through an ecosystem. In places like Yellowstone National Park, wolves have likely contributed to willow and aspen recovery and overall habitat diversity by reducing overbrowsing by elk.

Wolves are likely not solely responsible for the changes in the Yellowstone ecosystem. Additional factors such as drought, harsh winters, other predators, and human hunting may have also helped reduce the Yellowstone elk herd and transform the ecosystem.

Predicting the ecological effects of wolves is complicated, with no simple answers. Ultimately, if restored to Colorado, wolves might generate noticeable ecological effects where they occur in high enough densities for long enough time. In areas with lower densities of wolves, ecological effects will be less evident.

In short, it’s a complicated story with no simple answers.3,4 Multiple scientific studies have suggested that wolves, as apex predators, can have substantial ecological effects. Most such studies have been conducted in national parks such as Yellowstone and Isle Royale in the U.S. and Banff and Jasper in Canada.

In Banff National Park, development and human activity around the town of Banff kept wolf density low.5-6 Farther from town, wolf density was higher. When researchers compared low and high wolf density, they found fewer wolves led to increased elk numbers and greater browsing on willows and aspen (Figure 1). This in turn reduced habitat quality for songbirds and beavers.