Long-term data are valuable in assessing the health and stability of a community. Conservation biologists look for changes in a community over time to alert them to the fact that something is wrong with the community and that potential threats need to be assessed. Of particular importance to understanding community stability is the change in the .

Number of species and their relative abundances in the community over multiple years

Explanation:

Community stability measures the rate of increase or decrease of species in an environment over a period of time.

When studies are made and the species are in a low quantity then we refer to such species as being unstable and potentially becoming extinct whereas if there is a rise or uniform amount of species then stability is attained.

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