Human Effects and Involvement on Endangered and Extinct Species

The number of wild animals on Earth has halved in the past 40 years . Creatures across the land, rivers, and the seas are destroyed as humans killed them for food in unsuitable numbers, while polluting or destroying their habitats.

“For the first time since the dinosaurs disappeared, humans are driving animals and plants to extinction faster than new species can evolve, one of the world's experts on biodiversity has warned” (Jowit, 2010). The movie informs the viewers that we are not the only species that lives on earth and that we are the reasons for many extinctions. Therefore, many government organization are regulating hunting, fishing, and preserving endangered

Textual Evidence: “Elephants are also losing their habitats—and ancient migratory routes—due to expanding human settlements, plantation development and the construction of infrastructure such as roads, canals and pipelines.”

The scale and pace of change is dramatic; for example, the extinction of species is occurring at around 100-fold pre-human rates4. The population sizes of vertebrate species have, on average, declined by half over the last 45 years5. More than 2.3 million km2 of primary forest has been felled since 20006. About

Elephant populations suffered a drop in numbers that carried the species into the endangered animals list. At the beginning of the twentieth century, about ten million elephants lived in Africa. Presently, the ten million is reduced to half a million because of illegal hunting and habitat loss. Studies of the population show twenty-two thousand were killed in 2012 and twenty-five thousand in 2011. When comparing the death rate to the natural population growth, there is a possibility the largest mammal on Earth could be extinct soon (Vaughan 1). Because the elephant is the largest animal to walk on land, the greatly increasing human population affects the elephant population first. They live in some regions of the world that have the densest human population which continues to grow, which therefore continuously decreases their own population (Bryner 1). As the human population swiftly increases, the elephant population in turn, decreases. This is so because they cannot cohabitate the same living space. Elephants and humans cannot cohabitate because they would kill each other due to the inability to communicate. About population recovery, the Animal wildlife foundation states, “Populations of elephants- especially in Southern and Eastern Africa- that once showed promising signs of recovery could be at risk due to the recent surge in poaching for the illegal ivory trade”(1). Poaching presents one of the main issues that make recovery so difficult for these animals.

A report from Recovering America’s Wildlife Crisis states, “More than 150 species have already gone extinct and about 40% of freshwater fish species are imperiled.” Animals are being killed off by the minute. Now the wildlife species are going to abolished from Earth.

Deforestation of rainforests as such, physically kills of plant species, and these plants and the environment they form are the habitats that are vastly inhabited by all types of living matter, from elephants in the African jungles, to the beetles that live in logs. An approximation of extinct species of mammals would be about 60, since 1600. 125 species of birds have also become extinct since then. Currently, there are around 1000 to 1100 species of birds and mammals that are facing extinction, or on the brink of extinction. Including plants and invertebrates too would bring this number to 20 000. This is solely to do with the fact that Europeans use whatever land available to make way for industrial, commercial and residential use.

Summarize: The result of one species extinction could potentially be fatal to the environment. In the animal kingdom, there is a food chain. Keystone animals, are the key ingredient to the food chain. When that keystone animals goes extinct, it sets off a chain reaction on the other animal’s food source. This causes one species to flourish and another to dwindle. The environment needs a healthy checks and balance system to keep each animal population under control (Stuart, 1990 ). Humans can cause the keystone animal to become extinct and therefore, responsible for rise and decline of other species, ultimately, throwing the food chain off balance.

In a summary, Kolbert explains the extinctions of a variety of different major animal species that became extinct. She also explains that if trends in the environment continue that the biggest extinction in history will occur soon. If global warming, deforestation, and glaciers continue to melt she says that more and more species will continue to become extinct. She explains how humans need to be more conservative and careful with what they’re doing to prevent extinction.

Elizabeth Kolbert, a journalist, took her curiosity of science and traveled all around the world to see just how the lives of different varieties of species deal with predators, habitat changes, climate changes, etc. Just some of the places Kolbert visited were the United States, Panama, France, the island of Ischia, One Tree Island, and many, many more. Extinction, the disappearance of a particular species, is a crucial topic in this particular book. Many species over the whole entire world, are quickly declining in numbers. Humans have a vital responsibility for some of these species going extinct, and we need to advertise what we are doing to animals world wide so we aren’t a source of the majority of extinctions.

The book was very in depth and she thoroughly explained her claims through facts and data. Her claims successfully explain the patterns of life on Earth through numerous studies and she explains the dangers of extinction. The author concludes her work with the fact that humans are dependent on Earth’s biological and geochemical systems. Her work will continue to teach future readers the danger of human lifestyles if necessary actions toward sustainability are not taken. If humans continue to live their harmful lifestyles, then they will continue to danger wildlife species, the environment, and their own

E. O. Wilson, a famous American biologist, describes the main causes of extinction with a simple acronym: HIPPO or habitat, invasive species, pollution, population, and over-harvesting. Each of these causes traces back to humans. Habitat loss is when organisms lose their “homes” mostly due to human urbanization. Human cities have grown exponentially and it does seem to be slowing down. Due to this organisms have lost their natural habitats and are forced to leave and find new ones. Invasive species are organism that are placed in locations where they do not naturally occur. Humans have helped the growth of this problem due to the desire of extotic pets. Invasive species become an enormous problem because the location they are introduced to do not have the proper needs to help control the

Bill Freedmen, author of “Endangered Species—Human Causes Of Extinction and Endangerment” notes, “scientists approximate that present extinction rates are 1,000 to 10,000 times higher than the average natural extinction rate.” These distressing numbers should be acted upon to save the endangered species and avoid the catastrophic change to this planet if these species were to become extinct. In order to produce change, people need to recognize that habitat loss, climate change, and poaching are all factors in why our animal species are going extinct.

It’s clear that a great extinction is coming from the evidence of the destruction of other species around us. The choices made by the human race have too often negatively affected the surrounding species. Tracy Wilson, the site director for HowStuffWorks.com, in an article for Animal Planet, states that

Ultimately, the phenomenon of animals that are less attractive or appealing to the public being ignored is a greater reflection on society as a whole. Too often, it’s easy to overlook the “ugly” in favor of the more attractive option. In 2010, the UN released figures stating that anywhere from 150-200 species go extinct every day around the world, and while these numbers may vary, the general message is the same: we are losing animals at an alarming rate. In fact, scientists refer to the “Anthropocene” –the era of humans- as the sixth mass extinction. Most of the endangered species are ones that people have never heard of, but are nonetheless just as important to preserve as are pandas, dolphins, apes and other more sympathetic creatures. Witnessing this problem breaks my heart, and I want to do something.