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SUBJECTS (1-3 of 3)
Population Biology
1 -- See Also the narrower term Biological invasions
Here are entered works on processes in which organisms become established in a region where they previously did not exist and then rapidly expand their range.
2 -- See Also the narrower term Biotic communities
3 -- See Also Ecology
Here are entered works on the interrelationships of organisms and their environment, including other organisms. Works on the composite of physical, biological, and social sciences concerned with the conditions of the environment and their effects are entered under Environmental sciences. Works on the relationship of humans to the natural environment are entered under Human ecology. Works on the relationship of humans to their sociocultural environment are entered under Social ecology.

--subdivision Environmental aspects under subjects, e.g. Agricultural chemicals--Environmental aspects; Nuclear power plants--Environmental aspects; and headings beginning with the word Ecological
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