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Table 2 Hierarchy of exclusion for filtering the results of the database searches

From: Systematic review of situational prevention methods for crime against species

THEME The title/abstract of the paper must clearly identify its relevance to the prevention of crime against species (e.g. poaching, theft, illegal trade)
GEOGRAPHY The title/abstract must not indicate a location that is exclusively urban (e.g. urban area, town, cities). If the title/abstract did not specifically indicate a location it was progressed to the next stage
INTERVENTION The title/abstract must have referred to specific interventions for the situational prevention of crime against species
SPECIES Aquatic (e.g. coral, fish) or microscopic species (e.g. protozoa, algae) were excluded. Humans did not qualify as targets of crime in this review