Criteria
Article type: Article documents an empirical investigation. This excludes reviews. Article is peer reviewed and in English.
Question: Article examines how vertebrate or invertebrate herbivory affects or responds (in terms of forage selection) to plant traits.
Subjects: Include one or more herbivore/s and plant trait/s and be within a grassland/grassy woodland ecosystem or on a plant species which occurs in these ecosystems.
Study design and treatments: Article included a no herbivory control treatment, either through herbivore exclusion, herbivore addition or natural herbivory gradients which included areas of no herbivory.
Excluded studies: Articles reporting on simulated grazing. Articles with only categorical traits. Articles which focussed on plant species which are crops. Articles which artificially modified plant traits and measured herbivore response (e.g., application of silica onto plants).
Rules for multiple treatments or time periods: Where articles report results from over multiple time periods, the most recent comparison was recorded. Where articles report results from multiple grazing intensities only difference between the control and highest grazing intensity were used.