Terms in this set (29) The number of species found on an island is determined by a balance between two factors: the immigration rate (of species new to the island) from other inhabited areas and the extinction rate (of species established on the island).
What 2 factors determine biodiversity?
Biotic, abiotic and human influences are all factors that affect biodiversity in an ecosystem.
What two factors affect the immigration and extinction rates of species on an island?
This equilibrium between extinction and immigration rate is determined by two major factors: distance from the mainland and island size. Larger islands can support more species and have lower extinction rates than small ones because they cover larger areas, with a greater diversity of habitats and resources.
What 3 factors affect the biodiversity of an ecosystem?
Factors that affect biodiversity in an ecosystem include area, climate, and diversity of niches.
What are the 3 factors that make up biodiversity?
Levels of biodiversity
- Biodiversity is usually explored at three levels – genetic diversity, species diversity and ecosystem diversity. These three levels work together to create the complexity of life on Earth. …
- Species diversity. …
- Ecosystem diversity.
Which affects biodiversity the most?
Historically, habitat and land use change have had the biggest impact on biodiversity in all ecosystems, but climate change and pollution are projected to increasingly affect all aspects of biodiversity.
What is one factor that affects biodiversity today and how does it affect biodiversity?
Climate change, deforestation and loss of habitat and pollution are one of the factors affecting biological diversity. The greatest factor would be climate change wherein animals and other species fail to adapt in changing climate thus resulting to their death.
What are the 3 main levels of biodiversity?
Usually three levels of biodiversity are discussed—genetic, species, and ecosystem diversity.