Invasive species
Non-native species disrupting and replacing native species.
Dictionary > Invasive species
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Population Regulation in an Ecosystem
With regard to the population size of a species and what factors may affect them, two factors have been defined. They are the density-dependent factors and the density-independent factors. Find out the differences between the two in this tutorial. Know how these factors affect populations in an ecosystem...
Indicator Species and Endangered Species
Certain species are capable of expressing characteristics indicative of the state of the ecosystem they occupy. They are called indicator species. Endangered species are those that face the risk of extinction. Get to know more about these species in this tutorial...
The Homo Species
The evolution of the species of the genus "Homo" led to the emergence of modern humans. Find out more about human evolution in this tutorial that elaborates on the different Homo species in the early geologic time. ..
The Hominids
The hominid family diversified from the apes around 6 to 8 million years ago. Since then, the evolutionary path has proved to be nothing short of phenomenal. This tutorial elucidates the emergence of the hominid family from where the human ancestral line came from...
The Gene Pool and Speciation
According to Charles Darwin's theory of natural selection, preferable genes are favored by nature in the gene pool, and over time, these preferable characteristics become more exclusive in the gene pool. This tutorial rounds up all the factors that can alter the makeup of a gene pool...
Insects
There are more species of insects than any other species combined. This surely illustrates that insects have the selective advantages that allow them to take the most advantage of the environment that they live in. Read more about the evolution of insects in this tutorial. Find out the reasons as to why insects enjoyed their continued existence over such a long period of time...