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Fig. 2 | Environmental Evidence

Fig. 2

From: Response of chlorophyll a to total nitrogen and total phosphorus concentrations in lotic ecosystems: a systematic review

Fig. 2

Evidence availability and mean effect sizes for the U.S. (states and the District of Columbia). Maps show the number of cause-effect pairs (N) included in the narrative synthesis and meta-analysis for the stressor-response relationships: a TN-benthic chl-a, b TP-benthic chl-a, c TN-sestonic chl-a, and d TP-sestonic chl-a. White stars indicate effect sizes < 0

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Environmental Evidence

ISSN: 2047-2382