This can be due to natural factors (competition, predation, and so forth) or to human-caused causes (introduced species, habitat loss and degradation, climate change, etc.). Species threatened with extinction are called "endangered". Those who are already extinct are called "extinct".
Threatened species may become extinct if nothing is done to protect them. What are two ways people can help save threatened species?
The first way is by donating money to conservation programs. There are many different organizations that work on conservation issues, from large multinational companies to small non-profit groups. They all need your help!
The other way people can help is by not buying products that contain animal parts. Some countries don't have enough wildlife to meet their demand for meat and dairy products, so they import them from other countries that do have enough wildlife. This trade is one of the biggest threats to biodiversity today. By boycotting these products you can help reduce the number of animals killed for their skins, bones, blood, and organs.
Some species are in danger of becoming extinct because we want something else to eat. This is called "cannibalism within its own species". Animals do this when there aren't enough individuals of their species left to survive.
Habitat Depletion One of the most serious threats to endangered animals is habitat loss. While some habitat loss is caused by natural causes (climate change, geologic changes), much of the habitat loss today is caused by human activity. Habitat loss can occur in four main ways: deforestation, land development, invasive species and pollution. Each of these factors will be discussed in more detail below.
Deforestation: This occurs when an area of forest is removed from its natural environment and destroyed or converted into farmland or other uses. Deforestation can have severe effects on wildlife populations because it can lead to reduced food sources, increased exposure to predators, and loss of breeding grounds. Forest ecosystems provide many benefits to humans too; they help control soil erosion and flooding, help reduce temperature variations across large areas, and provide us with wood, fiber, and medicine. However many forests are destroyed for timber or farmland and their beneficial effects on humanity are lost. Over time, deforestation can lead to a reduction in biodiversity worldwide. Examples of threatened species that may be found in deforested areas include the jaguar, the manatee, and the puma.
Land Development: This term is used to describe any action taken to make use of empty land by creating structures or developing resources.
Species become endangered due to two primary factors: habitat loss and genetic variety loss. Natural habitat loss is possible. Human activities can also play a role in habitat decline. The habitat of native creatures is being reduced as a result of development for housing, industry, and agriculture. Many animals are also killed by humans when they seek out food or shelter.
Habitat loss can be natural or human-caused. Natural causes of habitat loss include drought, earthquakes, volcanoes, flooding, and storms. Humans cause habitat loss by cutting down trees, building roads, and other activities that lead to the extinction of certain plants and animals.
Genetic diversity loss occurs when a single breeding pair is isolated from similar partners. This prevents genes from being passed on to future generations. Climate change and invasive species are also factors that can contribute to genetic diversity loss. Invasive species are introduced into new areas with harmful effects on native species. Climate change can have an impact on species through changes to their habitats. For example, if the temperature increases too high, some species will be forced to move or go extinct.
Endangered species programs were created to save endangered animals. Governments create laws that protect endangered animals because without this protection, people would continue to kill them off. Threats to these animals include capture for trade, exposure to toxic substances, and use in medical research.
Extinction nowadays is mostly caused by habitat loss and degradation (primarily deforestation), overexploitation (hunting, overfishing), invasive species, climate change, and nitrogen pollution.
However, there are many other factors that can play a role in the extinction of a species. For example, disease can be an important factor in causing extinction events. Also, some species may become extinct because they are unable to adapt fast enough to changes in their environment. Finally, some species may go extinct because we humans choose to stop breeding them.
The main reason for the extinction of a species is usually habitat loss and degradation. This can be due to human activity (such as deforestation), which creates new areas that are not suitable for the survival of the species. Invasive species, too, can cause extinction if they are able to spread into new areas where they don't belong. Climate change can also be an issue - when two regions with identical organisms experience different climates, this can lead to extinction if the better-suited region becomes too warm or dry or if ocean currents change and take the organisms away from cooler waters to warmer ones. Finally, natural disasters can cause the extinction of species - earthquakes, volcanoes, floods, and storms can all destroy habitats and kill off individuals.