Assertion: grouse's density | /r/HasProperty | known to negatively impact ecosystems
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text: However, overall evidence that game shooting is beneficial to wider biodiversity has been inconclusive: high densities of game birds are known to negatively impact ecosystems, resulting in shorter grassland vegetation, lower floral diversity in semi-natural woodlands, fewer saplings in hedgerows leading from such woodlands, and possible reductions in arthropod biomass attributable to predation.