Wooly mammoth. Atlantic gray whale. Large sloth lemur. Dodo bird. Silver trout. Baiji white dolphin. Saber-toothed tiger. These are just a few of the many extinct species. All extinct species go through a process that leads them to extinction. Endangered species are on the brink of extinction caused by natural causes and humanity. The numbers of these species have increased yearly due to different reasons, and it is because of these reasons they become endangered.
Endangered species are plants or animals expected to die off within a few years. “Facts about Endangered Animals” is an article that teaches its readers general facts about many animals facing extinction. Four main categorizes for endangered plants and animals include vulnerable species, threatened species, endangered species, and extinct species. The vulnerable species have such declining numbers that they are at risk (1). Threatened species have enough numbers but are decreasing in their normal environment. Endangered species are on the verge of extinction. Existing no longer, are extinct species (2). Within the present years, there are currently thirty-eight known mammal species that have been listed as extinct (1). Endangered species are either headed towards extinction or are going up towards the threatened stage. Either way, their numbers are always altering, and the aspects are numerous.
There are several main reasons why endangered species proceed towards extinction. Greta Nilsson wrote an article for the encyclopedia about endangered species. In the first part of her essay, she focused on the four main reasons that put plants and animals on the endangered species list: destruction of habitat, exotic animal exchange, overhunting, and competition between nat...
... middle of paper ...
...ies have a great impact on the world, and they deserve to be saved.
Works Cited
Bloyd, Sunni. Endangered Species. San Diego: Lucent Books, 1989. Print.
“Endangered Species Act.” National Wildlife Federation. National Wildlife Federation, 2011. Web. 18 Oct. 2011.
“Facts about Endangered Animals.” Facts about Animals. N.p. Factsaboutanimals.net, 2008. Web. 14 Oct. 2011.
Goodnough, David. Endangered Animals of North America. Berkeley Heights, NJ: Enlsow Publishers, 2001. Print. A Hot Issue.
Jackson, Peter. Endangered Species: Elephants. Secaucus, NJ: Chartwell Books, 1990. Print.
Klinkenborg, Verlyn. “Last One.” National Geographic Magazine. National Geographic Society, Jan. 2009. Web. 18 Oct. 2011.
Kurpis, Lauren. Endangered Specie. Lauren Kurpis, 2002. Web. 17 Oct. 2011.
Nilsson, Greta. “Endangered Species.” The World Book Encyclopedia. 2003. Print.
U.S. Department of the interior, National Park Service. (2013). Endangered Species. Retrieved from website: http://www.nature.nps.gov/biology/endangeredspecies/index.cfm
...2100 if man continue on their harmful rampage. At the present time, there are 3,947 animals critically endangered and 5,766 endangered. The percentages of animals in danger of extinction are 41% of amphibian species, 33% of reef-building corals, 30% of conifers, 25% of mammals, and 13% of birds. Educator is the country with the highest endangered animals, with an insane 2,211.
The Endangered Species Act Introduction: Long-term survival of a species depends on its ability to adapt to changing environmental conditions (Murphy, 1994). Genetic diversity within a species, which has taken 3.5 billion years to evolve, makes adaptations to these changing environments possible. Unfortunately, the rate of extinction of genetically diverse organisms is rapidly increasing, thus reducing this needed biodiversity, largely due to the human impacts of development and expansion. What was an average of one extinction per year before is now one extinction per hour and extinct species numbers are expected to reach approximately one million by the year 2000 (WWW site, Bio 65). As a result governmental and societal action must be taken immediately!
There were 5 mass extinctions in the past, with the latest one more known to man, the Cretaceous-Tertiary mass extinction that caused the wiped out of the dinosaurs. Though the latest one happened 65 million years ago, something representing this phenomenon of mass extinction is underway in our era. While past mass extinctions were caused by natural forces, and asteroid, climate change and sea level’s changes were thought to be the culprit, this time the actor behind is not natural, and it is us Human Beings. It might occur to many that the current trend of animal extinction has no consequences on us, but in fact it is not true. Many of the endangered species does matter to us significantly. In this paper, using examples of some neglected critical endangered species as main headings, I will look into different forms of human activities that had led to their losses, and also more importantly how these losses could have impacted on us.
Jen Viegas in the article , More Than Half of All Primates Threatened with Extinction , states that most primates like ape, monkey, tarsier, lemur and loris era threatened with extinction.Viegas supports his statement by explaining information about the threatening of these animals.He is also describing why they're threatened with extinction.First , Viegas states that 60% of primates are threatened with extinction , and 75% are declining in numbers.Then he explains that a species of monkey, called Miss Waldron’s red Colobus have already gone extinct.Viegas also states that the IUCN (The International Union for Conservation of Nature) found that human activities, for example, agriculture, wood harvesting, and livestock farming are mostly why
Threatened Species because, as of 2003, the size of the global population was estimated at
Thesis Statement This paper discusses why some animals go extinct explaining the factors of extinction either direct extinction or indirect extinction which can be caused by man or by natural selection. Also, why some animals did not go extinct despite all the change done. On the other hand, emphasizing the efforts done by man to limit extinction. These rules are applied to an individual ecosystem like islands.
Having considered both sides of the argument surrounding the Endangered Species Act, it seems logical to conclude that, despite the fact that they Endangered Species Act could stand some improvement in terms of the speed of the bureaucracy that governs it, the Act itself is quite sufficient as is as long as it is administered to the full extent of its power. There is a growing tendency in government, however, to undermine the strength of the Endangered Species Act by making decisions on when and where to apply it a political matter rather than an ecological matter (Munro, 2010). To do this is to insure that ultimately it will not just be the environment and the wile organisms that live in it that will lose, it will be mankind as well.
Various plant and animal species depend on each other for what each offers and these diverse species ensures natural sustainability for all life forms. A healthy and solid biodiversity can recover itself from a variety of disasters. It is estimated that the current species extinction rate is between 1,000 and 10,000 times higher than it would naturally be. Therefore, there is an urgent need, not only to manage and conserve the biotic wealth, but also restore the degraded ecosystems. c) Captivity breeding species can again be reintroduced into the wild.
of species due to a variety of causes. Included is out competition, depletion of resources
When the extinction of animals happens, it will decrease the number and populations of the animals on the earth. It will require more energy and time for the hunters to find these special species to make experiment or to make a television show about these animals. The hunters have to searched at day or night, whether if it dangerous or not just to know about the truly existence of these animals. These kind of animals would be hard to find because they like to hide their presence from been seen by the hunters. Besides, these animals also could be more aggressive to the people. This will cause the animals to attacks and bite the people who try to get closer to them. This is because they were afraid that the people may hunt and kill them. The ecosystem also could be unstable when amount of animals lesser that the amount of trees on the earth. But, if the numbers of animal increases, the placed served for them wo...
One of the big causes of extinction or the endangerment of species is foreign species entering a habitat. This species that are not native to the land can disrupt the food web in that community. These species take control of the food web and endanger some of the other species. The native species become endangered and over the course of many years they either adapt to their new way or life, the foreign predator leaves or is killed off due to the different environment, or the species is killed off and becomes extinct. Organizations like the “World Wild Li...
In the world today there are about five thousand endangered species. Around one specie dies out every year. Some animals become endangered because people are killing them for their horns, as in the case of the Black Rhino of Africa. Others become extinct because pesticides are put on the food we eat, causing the animals that eat the insects off the plant to become contaminated, which causes their predators to become contaminated, which often affects the shell of that organism?s egg. Here is a list of the endangered species, 91 endangered birds, 76 endangered mammals, 36 endangered reptiles, 21 endangered amphibians, 115 endangered fish, 70 endangered clams, 35 endangered snails, 44 endangered insects, 12 endangered arachnids, 21 endangered crustaceans, 594 endangered flowering plants.
In our world today we have approximately 26,021 endangered species. Endangered species are organisms that may possible become extinct. The term 'endangered species' refers to all species that fits this description. However some conservation biologists and scientists normally use the term ‘endangered species’ to refer to species that are put on the IUCN(International Union for Conservation of Nature)Red List. Many factors can be looked at when considering the conservation status of a species. Factors such as human threats or environmental threats can cause a species to become endangered.
Shah, Anup. Loss of Biodiversity and Extinctions. Global Issues, 19 Jan. 2014. Web. 19 May 2014.