• Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month

The Effects of the Re-Introduction of Predators into an Eco-system.

Extracts from this document...

Introduction

Re-introduction of Predators What effect does the removal of a top predator have on an ecosystem? This could affect many factors unintentionally, due to the food chains affected. For example, when the wolves were removed from Yellowstone National Park in America, it caused many problems for other living things there. They were removed because they were a danger to humans. When they were removed, elk reproduced a lot and their population wasn't being controlled by wolves anymore. Too many elk meant the ancient forests were destroyed because the elk were eating all the trees. This also created a problem for beavers, as not much wood was available for them and therefore couldn't build dams in the rivers. ...read more.

Middle

With more wood available, the beavers made a return and built dams which helped the aquatic population. So overall the ecosystem was improved a lot. What are the other implications of re-introduction? Although the wolves' re-introduction would be considered a 'success', there are possible disadvantages to reintroducing predators. When wolves were re-introduced there was a 90% decline of coyotes, although this was only considered a small problem. Also, when the Florida Panthers were re-introduced into Florida, there was the danger of the panthers attacking humans. As they were reintroduced quite close to where humans lived, some were killing their goats. Another problem was inbreeding; only a small number of panthers were introduced, so some started to inbreed. ...read more.

Conclusion

I would consider the example when wolves were re-introduced to be a success because there were many advantages and the ecosystem was improved a lot. For the Panthers example, it's hard to determine, but I think it was still a success because now they can control the inbreeding problem by helping them get to other parts of the forest where more panthers should be. Although one was attacking goats, this can be controlled and the humans have to learn to live with the panthers being so close. I wouldn't consider it a success if the humans were being attacked or if the predators died out. If the predators just caused more problems then I wouldn't consider it to be a success. ?? ?? ?? ?? ...read more.

The above preview is unformatted text

This student written piece of work is one of many that can be found in our GCSE Living Things in their Environment section.

Found what you're looking for?

  • Start learning 29% faster today
  • 150,000+ documents available
  • Just £6.99 a month

Not the one? Search for your essay title...
  • Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month

See related essaysSee related essays

Related GCSE Living Things in their Environment essays

  1. What Factors are responsible for the success of Insects?

    By the end of the period the fossil insect fauna looks quite modern. As stated above, at least half of all insect species are phytophagic and many more feed on these plant-eating species. Interactions with other organisms, such as plants in the case of herbivorous insects or hosts for parasitic

  2. Fungal Pathogens in Humans.

    For example, the mainly conidial Aspergillus causes a widely varied disease called Aspergillosis in immunocompromised individuals (Denning et al. 1991). Aspergillus is a rather ubiquitous fungus, commonly isolated from soil, plant debris, and indoor air environments. Out of 185 recorded Aspergillus species, only 20 cause opportunistic infections in man, with Aspergillus fumigatus being the most commonly isolated species.

  1. How does saltation affect the sand dune ecosystem?

    The root system is extensive to help gain water from the soil, and also the root system is adapted so that the salinity of the soil does not draw water out of the roots. The main plants that grow in this dune are couch and Lyme grasses, as these plants are the most adapted to the harsher conditions.

  2. Rain forests.

    A thin layer of fallen leaves, seeds, fruits, and branches covers the forest floor. This layer quickly decomposes and is constantly replaced. The layers of a rain forest continually change. Large old trees die and fall to the ground, leaving a gap in the canopy.

  1. An Investigation into the water quality of the River Banwell in

    Nitrogen fixation is not the only way nitrogen compounds enter the soil. Lightening and deposition by acid rain can also achieve this. The decomposition in acid rain is achieved by the breakdown of plants and animals and the release of manufactured fertilisers.

  2. Early Humans?

    The enamel on the canines and molars is thin, this is a distinctly ape trait; all other hominins have thick dental enamel. However A. ramidus can be differentiated from extant and extinct apes by its less projecting crowns, smaller upper central incisors relative to postcanine teeth, and most importantly the

  1. Grizzly Bears

    When the earth turns green they eat roots and sedges. Sedges are grasses that are grown in wetlands. They are important because they grow rapidly in spring and they are rich in protein. Grizzlies also eat nuts, insects, salmon and trout, and small mammals like squirrels.

  2. The Effects of the Wolf Reintroduction on the Coyotes of Yellowstone

    It makes a high pitched yip or howl that is usually heard at dusk, sunrise, or at night. Coyotes are scavengers who will eat whatever they can get. Biological Characteristics of a Coyote?s Niche: Most of the time, coyote?s live and hunt in pairs, but large groups have been seen.

  • Over 160,000 pieces
    of student written work
  • Annotated by
    experienced teachers
  • Ideas and feedback to
    improve your own work