Species Diversity

Click here or the image below to download free resources from alevelbiology.co.uk!

Click to download!

This is a legacy topic. View the most up to date content by clicking an exam board tab above or visiting the home page.

Species diversity is the diversity of species in a community. Put simply, how many different species are there in a community? 5 or 5,000? Which has the higher diversity? Not rocket science I hope.


^That's some rocket science, I don't really know what it is, but I don't wish to find out, and neither do you. Just a little motivator to not complain about biology.

Now for a little talk about deforestation and agriculture. Deforestation is the removal of trees in forests. and agriculture is the cultivation of useful plants to people which are often carefully selected for, and occupy a large area by themselves (like corn).

It's not hard to figure out the impact both have on species diversity. Deforestation practically removes many, whole trees, and with them goes the shelter and food source of many other organisms. A great reduction in species diversity can be expected as a result.

Agriculture by humans results in a single dominant species which occupies vast land at the expense of others. Humans actively remove other species by the use of pesticides, insecticides and (indirectly) fertilisers. This, too, will lead to a great decrease in species diversity.
Comments