Diversity. What is Diversity?. Diversity is often considered as a function of two components: A) the number of different species and B) the relative numbers of individuals of each species. There are 3 main types of Diversity we need to know about: Species Diversity, Genetic Diversity,
A) the number of different species and
B) the relative numbers of individuals of each species.
We can measure diversity so that we can quantify and compare different ecosystems using a Diversity index.
First we need to know about how organisms can change……. Lets use a giraffe as an example
We have to start with 2 main ideas and look at their consequences:
We can remember this from our look at rabbits in Australia, and human population.
Just look around you……
But you need to note that:
Variation within our species is the result of different selection pressures operating in different parts of the world, yet this variation is not so vast to justify a construct such as race having a biological or scientific basis.
Who is struggling here?
So how come biomes in different areas of the world have different species?
How do different species come about?
In order to answer these questions we need to consider speciation.
This is called continental drift.
Pick a continent. What impact will the land movements shown affect:
Movement of animals and trees?