Community ecology is a subdiscipline of ecology which studies the distribution, abundance, demography, and interactions between coexisting populations. Interactions between populations, determined by specific genotypic and phenotypic characteristics, is the primary focus of community ecology.Community ecology has its origin in European plant sociology. Modern community ecology examines patterns such as variation in species richness, equitability, productivity and food web structure; it also examines processes such as predator-prey population dynamics, succession, and community assembly. Patterns and processes in turn can be considered in terms of space and time, at different scales. See alsoBehavioral ecologyEcosystem ecologyPopulation ecology

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A new food regulation that mandates the pasteurization of California almonds leaves a bad taste in the mouth of Jesse Schwartz, a purveyor of raw organic almond butter and other natural foods in Berkeley. For 25 years, as president of Living Tree Community Foods, he has done business with small Central Valley farmers.

With world population increasing and at a time of rapid environmental-climate changes, it is crucial that we conserve the widest possible natural genetic base of our food crops. Communities that lose locally-bred varieties and the knowledge of how to grow them, risk losing control of their farming systems and becoming dependent for seeds, supplies.

Cardozo Law's Susan Crawford points out: "To be "for" network neutrality, it seems natural to have the view that the internet is displacing many prior forms of communications ... But to be "for" limits on media ownership, it may be necessary to argue that nothing much has changed." Food for thought.