When Large Animals Disappear, Ecosystems are Hit Hard
Picture: This picture shows a wolf (a top predator and an animal at the top of most food chain) eating an animal, possibly a deer, elk, moose, or something else. Without the wolves and other top predators to hunt for their prey, the population of them will grow, causing havoc in the rest of the food chain.
Summary: The loss of top predators is causing an unstable balance in the food chain. These predators aren't being killed by their prey, but by hunting and loss of habitat. This is starting to happen in all food chains, from land to ocean. With the top predator of a food chain missing, the rest of the population starts to rapidly grow. This population then needs to eat, but they are eating too much because there are so many of them, which kills off the smaller things, as well as producers. Without food, these animals that are usually eaten by the top predator will starve, which can lead to the end of a whole entire food chain. In example, when wolves were removed from Yellowstone National Park, the population of the elk and deer (the wolves' prey) skyrocketed. These herbivores ate a ridiculous amount of willow and other tree saplings, destroying the habitats for some animals and even changing stream paths. The wolves had to be reintroduced to Yellowstone to keep the rest of the park wildlife at balance.
Opinion/Reflection: When I first saw this title, I thought that it was good if the top predators of a food chain started to die out, because the other animals would be okay. As it turns out, top predators help keep a whole food chain in balance and keep populations at a reasonable size. Without these predators, whole ecosystems could collapse and everything could end up becoming a disaster. Everything thinks that it's bad when animals kill other animals for food, but it keeps everything under control and without it, technically none of the animals would really be able to survive.
Questions:
1: What do you think are some good ways to help keep top predators alive, but not have too many at the same time?
2: What ecosystem do you think is mostly affected by the top predators disappearing and why?
3: You can't really stop hunters from hunting, but there obviously has to be control over hunting limits. What do you think they could do with the hunters?
4: What do you think destroying animal habitats (knocking down forests, oil spills, etc.) has to do with keeping animal populations under control? How could this be prevented, but still allow humans to live or use that land?