1. The concept of island biogeography also provides important information about how many species should be able to survive and thrive in a given ecosystem, as well as what conservation efforts can be used to protect threatened species.
2. Like said above, the most important difference between non-native and native is if the species came by itself or was helped by humans. ... But in most cases the human intervention is clear (like grey squirrels). To much of the public it doesn't matter if they see a red or grey squirrel, as long as they can see a squirrel
3.Because climate determines plant growth, it also influences the number and variety of other organisms in a terrestrial biome. Biodiversity generally increases from the poles to the equator. It is also usually greater in more humid climates.
