the slope of the area curve.

This function can also be expressed as a logarithmic function: This expression of the function allows for the function to be drawn as a linear function. However, the core meaning of the function is the same: the area of the island dictates the species area relationship.

Historical record

The theory can be studied through the fossils, which provide a record of life on Earth. 300 million years ago, Europe and North America lay on the equator and were covered by steamy tropical rainforests.

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