The heating and cooling of the earth, changes in sea level, asteroids, acid rain and diseases can all be natural factors that cause a species to become extinct. Humans can also be the cause of extinction for certain species.Continue Reading
When a species cannot adapt to changing conditions, such as changing temperatures, they will not be able to survive. This inability to survive will hinder the repopulation of their species and will eventually lead to extinction. Many species also cannot adjust to changing sea levels and the effects that higher sea levels have on the environment. High sea levels not only change the way that species function in the ocean, but also alter the environments that are within the ocean.
Humans are one of the biggest non-natural threats to species and their rates of survival. Humans are responsible for overpopulating the earth with their species. Humans are also responsible for deforestation and air pollution that can be detrimental to many different species. Humans also use other species for their survival, such as the use of meat from animals. Hunting for survival, in combination with other human factors and natural causes, can result in the extinction of many different species.Learn more about Biology
Biodiversity is important in ecosystems because it prevents extinction of species, allows organisms to adapt to changes in the environment and provides a wide range of materials and foods for survival. Biodiversity is categorized into species diversity, genetic diversity and ecosystem diversity.Full Answer >
Life exists on Earth because of many different factors. Scientists have varying opinions, but do agree on a few key important requirements necessary for life to exist on Earth, such as the presence of water and the fact that Earth occupies a habitable zone around the sun.Full Answer >
Charles Darwin is best known for establishing a theory of evolution that explains biological changes among the species of the Earth. His belief that most species evolved through the process of natural selection also made him famous because this idea contradicts those of other naturalists of his time.Full Answer >
Some of the dynamic processes that can occur within an ecosystem are flooding, temperature changes, vegetation growth, invasions by non-native species and human intervention. In riparian ecosystems, such as floodplains, the role of human intervention can be significant as man-made structures such as levees, dikes and dams alter the course of water flows and flood pulses. Hydrologic alterations are an example of how changes made to an ecosystem carry the potential to disrupt critical nutrient cycling, change seed dispersal patterns and hamper the establishment and growth of vital plant communities.Full Answer >