Search terms and combinations
Searches were conducted in English and using the default date range for
each database/ search engine (1980s to present for SCOPUS and Web of
Science (WOS); 1970s onward for Google Scholar). To ensure a
comprehensive search, we selected search terms related to herbivores and
herbivory, plant functional traits and grasslands or other grass
dominated systems (e.g., grassy woodlands) or the species that occur in
these systems. The following search terms were utilised in each of the
online databases and searches.
TS=((herbivor* OR graz* OR brows * OR feed* OR forag*) AND (“plant
trait*” OR “functional trait*” OR “leaf trait*” OR “foliar
trait*” OR secondary* OR defens* OR defenc*) AND (grass* OR grassland*
OR “grassy woodland*” OR meadow * OR pasture* OR prairie* OR monocot*
OR graminoid* OR pampa* OR savanna* OR savannah OR campos OR cerrado OR
espinal* OR fynbos OR veldt* OR veld* OR llanos OR downs OR tundra* OR
pustaz) )
Using the field tag function in SCOPUS and WOS these terms were searched
within the title, abstract and key words of these databases.
Search results from databases were exported to Endnote citation manager
(Clarivate 20.3) and cleaned for duplicates. To check for additional
results not within these databases, the first 150 papers (sorted by
relevance) were exported from Google Scholar.