Deer overbrowsing in Japan forest leads to homogenized plant communities.
Deer overabundance in a Japanese forest homogenizes plant communities by preventing herb-layer species from flowering and fruiting. Excluding deer led to increased vegetation coverage and flowering/fruiting plant species. The upper slope showed more changes in species composition compared to the lower slope. Large herbs decreased in the control quadrats on the lower slope. Overall, deer browsing weakens the link between plant traits and topography, resulting in more uniform plant communities.