Definition of "topdown" [topdown]

• Alternative spelling of top-down. (adjective)

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• "This is an example of changes in "topdown" control of populations by predators, contrasting with "bottom-up" control in which lower trophic levels are affected by changes in nutrient or contaminant loading"
• "Some say this will be the way global warming will be addressed, not with "topdown," legally binding treaties, but with self-assigned targets, bilateral deals to help create low-carbon economies, aspirational goals set by G-20 summits."
• "This is an example of changes in “topdown” control of populations by predators, contrasting with “bottom-up” control in which lower trophic levels are affected by changes in nutrient or contaminant loading [27] (see also Chapter 8)."