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Table 3 Search string that will be used in the search of the literature in the Web of Science Core Collection and Scopus

From: How effective are protected areas for reducing threats to biodiversity? A systematic review protocol

Search string

Threats to biodiversity

threat$ OR "human impact*" OR "human pressure*" OR” anthropogenic impact*" OR "human activity" OR stressor OR “anthropogenic pressure” AND

Measure the change of threats

reduc* OR effective* OR impact AND

Protected areas

"protected area*" OR "conserv* area" OR "nature reserve" OR sanctuar* OR "national park*" OR "biosphere reserve*" OR "biodiversity reserve*" OR "wildlife habitat*"