Humans are not the only habitants of this earth so are the wildlife that surrounds us. We are in symbiosis relationship with the animals that are around us. Due to the population boom of humans, we are at a constant clash between the natural world and the human world. When the habitats of these animals are under severe pressure and a large number of species of wild fauna have become endangered, the significance of wildlife conservation becomes urgent. The increase in human populations has had a negative effect on the wildlife population. Studies have shown that with an increase of human population, there has been a steady decrease in wildlife population. This is due to more land being used by humans which in turn decreases or damages …show more content…
The categories according to the IUCN are “Extinct (EX) when there is no reasonable doubt that the last individual has died. A taxon is presumed extinct when exhaustive surveys in known and/or expected habitat. Extinct in the wild (EW) is when it is known only to survive in cultivation, in captivity or as a naturalized population. Critically endangered (CE) considered to be facing an extremely high risk of extinction in the wild. Endangered (EN), considered to be facing a very high risk of extinction in the wild. Vulnerable (VU) is when an observed, estimated, inferred or suspected population size reduction of ≥ 50% over the last 10 years or three generations, whichever is the longer. Near threatened (NT) when it has been evaluated against the criteria but does not qualify for Critically Endangered, Endangered or Vulnerable now, but is close to qualifying for or is likely to qualify for a threatened category in the near future. Least concern (LC) is when it has been evaluated against the criteria and does not qualify for Critically Endangered, Endangered, Vulnerable or Near Threatened. Widespread and abundant species are included in this category.” The last two categories are data deficient and not evaluated and both categories are of least concern due to thriving populations or populations that have not been studied.
Causes of ecosystem
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.
In contrast to the upheaval of animals in a development area, humans also make efforts to preserve biodiversity and forests by creating wild life
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
The criteria used for considering species as endangered on the IUCN Red List are “an observed, estimated, inferred or suspected population
Many species vital to ensuring that today’s environment will thrive are becoming extinct. If a species is slowly dwindling, and in imminent danger of becoming nonexistent, this species is considered to be endangered. “One in four mammals, one in eight birds, one third of all amphibians and 70% of the world’s assessed plants on the… IUCN Red List are in jeopardy” (IUCN, 2016). According to the International Union for Conservation of Nature, or IUCN, upwards of 16,000 species are threatened with extinction, including both plants and animals (IUCN, 2016). Before becoming endangered, a species will show warning signs, either by starting to lose biological diversity or by losing the habitats for that species to flourish in, or in the worst case, both. The word endangered can sometimes be confused with threatened, extirpated, or extinct. Extirpated refers to the state of a species where its population has died out in a certain area or range, but other populations of said species still exist elsewhere (Olden, Julian D., 2008). When a species is considered threatened, or vulnerable, this refers to the state of the species being susceptible to endangerment and extinction (“Extinction crisis escalates”). So if a species is threatened, the first signs of endangerment come along, which are similar signs to that of a species in danger of becoming threatened, including lack of genetic diversity, or overhunting may be evident. (“Extinction crisis escalates”). When a species is labelled
But every year it lose 8.41 millions acres of land due to deforestation and fires. The more the people cut down the trees ,the less habitats animals have .The trees releases air into the atmosphere, so the more they cut the land the less are they have. The increase animal's death would also have a toll in this as well.
The categories that they get on the endangered list are: population reduction, restricted geographic range, small population size and decline, very small or restricted population, and quantitative analysis
I boarded the Amtrak the early morning of November 5th, 2016 from Davis, California to the Peytonia Slough Ecological Reserve (Peytonia Reserve) in Suisun, California. The trip to this brackish and saltwater reserve was to help me analyze the relationship between humans and wildlife in urban settings. Urban environments depend on the rehabilitation and protection of small natural areas like the Peytonia Reserve. At the Peytonia Reserve, both humans and native/non-native species live in cohabitation, which paints an accurate representation of reconciliation ecology. Humans use these natural areas, the Peytonia Reserve in this case, for recreational activities like hunting and fishing. This, in turn, benefits the wildlife that lives in the area because hunters and fishers want the environment to be well maintained in order to support their activities. I came up with the conclusion that even though humans have more to benefit from wildlife, wildlife also depends on humans to help protect and conserve their habitats.
In today’s world, hardly any species of wildlife become extinct from natural causes. Europeans hunt animals to such an extent that we classify it as overhunting. We destroy their habitat, and introduce other animals that are a threat to endangered animals or are competition for resources and food. Habitat destruction is the greatest threat to both animals and plants.
Conservation is the protection and preservation of nature (Peterson 53). Hunting is an important part of the conservation of wildlife. Hunting is widely considered a crucial part of wildlife conservation. Hunting benefits wildlife by controlling the population, raising funds for wildlife conservation, and protect wildlife.
As housing developments grow, species lose their habitat and are forced to wander into cities and places with a greater human presence in search for food. When deforestation occurs animals’ homes are destroyed, and there is not enough land for the food chain to properly function. Prey animals, such as deer and rabbits, diminish in numbers. Then predators die off because of lack of food. Finally, prey animals repopulate and over populate because of the lack of predators (Deforestation). Some people believe that even as we build more buildings and cut down forests, animal populations will continue to thrive and balance themselves out. They also believe animals do not need to be hunted. This is not true. The presence of humans in the environment creates a situation in which animal populations become irregular due to habitat shrinkage. The problem increases with the human
An encroachment in the wildlife areas such as national parks has often led to the wild animals escaping from the parks and straying into the areas where human beings stay (Paul, 1986). The resultant effect is that the wild animals end up eating the domestic animals and at times leaving injuries on the human beings they meet on their way. Poaching on wild animals has also had a negative effect on the balance of the ecosystem. Most of the poached animals sooner or later become extinct from the universe thereby creating a problem of natural balancing in the ecosystem (Namara et al.
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.
There are 6.5 million species of land mammals. Wildlife biologists get the privilege of studying and spending time with these animals as their everyday life. I should be a wildlife biologist so I can study land mammals.
The health of the earth degrades with the destructive activity of human beings. A recent study by a group of scientists looked at twenty four different services that the earth’s ecosystems provide for humans, ecosystem services, and found that fifteen of them are in need of desperate help (Gazette 31 March 2005). These services are vital to the survival of both human and nonhuman life and include filtering water and providing nutrient rich soils and ocean waters. Many of the members of these various ecosystems are also decreasing in numbers. In a British survey of bird populations found that in the 200 birds of Britain tracked there was about a 54% population decrease between the 1968-1971 tacking period and the 1988-1991 tacking period. In two other surveys of 254 native plant species from the same area there was a decrease of about 28% during the past 40 years. Humans are pushing the sixth mass extinction (Gazette March 19, 2004).