A line with a steep negative slope in a plot of species' relative abundance (y-axis) as a function of the rank order of the abundance of each species (x-axis) is informing that species evenness in the community is low.
Species evenness is defined as the distribution of numbers across a species in a community or environment. It's a type of species diversity, with the other being species richness (which means the number of different species in an environment).
An example of species diversity is as follows:
In a forest, there are only a few plant species, but a large number of each species. Only a few species mean low species richness, while a large number of each species means high species evenness.
Learn more about species diversity at https://brainly.com/question/1446827
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