Soil erosion under forest hampers beech growth: Impacts of understory vegetation degradation by sika deer

Abe, Hayato; Kume, Tomonori; Hyodo, Fujio; Oyamada, Mimori; Katayama, Ayumi

doi:10.1016/j.catena.2023.107559

Cited by 6 publications

(1 citation statement)

References 86 publications

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“…This pattern may be attributed to the depletion of fine sediments on slopes near headwater streams in the sampling sites. In Japan, the exposure of rock substrates on mountain slopes due to sediment erosion has been reported in forests severely damaged by deer overbrowsing (Abe et al, 2024;Gomi et al, 2022;Murashita et al, 2022). These disturbances may cause sediment depletion on mountain slopes in catchments with ≥16 elapsed years since deer overabundance.…”

Section: Ecosystem Processes In Rivers After Deer-induced Forest Degr...mentioning

confidence: 99%

Regional‐scale effects of deer‐induced forest degradation on river ecosystem dynamics

Nakagawa,

Fujiki,

Numata

et al. 2024

Population Ecology

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Almost all ecosystems are open systems, meaning that significant changes in one ecosystem can lead to unexpected changes in others. Deer overabundance has become a problem worldwide, leading to forest degradation that has impacts on not only terrestrial, but also aquatic ecosystems. This study aims to investigate the regional‐scale importance of large herbivores in inter‐ecosystem interactions by examining the effects of deer‐induced forest degradation on fish populations. We selected similar‐scale catchments from river systems in Hyogo, Japan, that differed in the time since deer‐induced forest degradation. Conventional surveys for fish densities and microhabitat environments were conducted in 23 catchments, and surveys using quantitative eDNA metabarcoding were conducted in 95 catchments. We examined the relationships between fish population densities, microhabitats, and time since forest degradation, considering confounding effects. Data from 8 and 17 fish taxa detected by snorkeling and eDNA methods, respectively, were available for statistical analysis. Snorkeling‐counts (Individuals/1 m transect) and eDNA concentrations (Copies/L) in river water were strongly correlated. Fine sediments on riverbeds were increased in the 3–15 years following forest degradation and decreased after 16 years. Population densities of sand‐preferring fishes, as inferred from both eDNA and snorkeling, reasonably followed this pattern. These patterns may be caused by the depletion of fine sediments on mountain slopes. The results of this study suggest that deer‐induced worldwide alternation may also occur in aquatic ecosystems.

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Section: Ecosystem Processes In Rivers After Deer-induced Forest Degr...mentioning

confidence: 99%

Regional‐scale effects of deer‐induced forest degradation on river ecosystem dynamics

Nakagawa,

Fujiki,

Numata

et al. 2024

Population Ecology

View full text Add to dashboard Cite

show abstract

Characteristics of throughfall kinetic energy in an unmanaged Japanese cypress plantation laden with dead branches

Jeong,

Nanko,

Katayama

et al. 2024

CATENA

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Scots pine roots (Pinus sylvestris L.) as dendrogeomorphological indicators of soil erosion on a hiking trail in the Brodnica Lakeland, Poland NE

Matulewski

2024

CATENA

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Soil erosion under forest hampers beech growth: Impacts of understory vegetation degradation by sika deer

Cited by 6 publications

References 86 publications

Regional‐scale effects of deer‐induced forest degradation on river ecosystem dynamics

Regional‐scale effects of deer‐induced forest degradation on river ecosystem dynamics

Characteristics of throughfall kinetic energy in an unmanaged Japanese cypress plantation laden with dead branches

Scots pine roots (Pinus sylvestris L.) as dendrogeomorphological indicators of soil erosion on a hiking trail in the Brodnica Lakeland, Poland NE

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