Question

What is the meaning of stability in context to a biological community?

• A. A stable community should not show too much variation in productivity from year to year.
• B. A stable community must be either resistant or resilience to occasional disturbances (natural or man-made).
• C. A stable community must be resistant to invasion by alien species.
• D. All of the above.

Answer 1

Answer: (D)

Various groups of interacting organisms in a particular region are included in community. A community is said to be stable when its populations size of all species remains same over a period of time. In other words, the population is not showing much change or variation and is able to withstand any hardships or changes in the environment. A stable community is not affected by invasion of other organisms including alien species. It resists loss of biodiversity.