Which is the primary cause of habitat destruction quizlet?
The primary cause of species extinctions is habitat destruction resulting from the expansion of human populations and activities. Discuss the several ways in which introduced, nonnative species of plants or animals may disrupt a community, leading to the decline of native species.
What are causes of deforestation?
Deforestation causes can either be direct or indirect. Among direct causes are: Natural causes as hurricanes, fires, parasites and floods. Human activities as agricultural expansion, cattle breeding, timber extraction, mining, oil extraction, dam construction and infrastructure development.
What are the three leading causes of extinction today explain what each cause involves?
Species endangerment and extinction have three major anthropogenic causes—overhunting or overharvesting; introduction of nonnative species, including the spread of disease; and habitat degradation or loss. All three causes probably were factors in prehistoric as well as modern times.
How does habitat loss cause extinction?
When a habitat is destroyed, the plants, animals and other organisms that occupy the habitat have reduced their carrying capacity or ability to survive, to the point that populations decline and become extinct.