Long-Term Monitoring of Natural Forests and Their Database (Forest Dynamics Database: FDDB) Constructed by the Forestry and Forest Products Research Institute, Japan

Niiyama, Kaoru; Takyu, Masaaki; Kawarasaki, Satoko; Ogawa, M.; Satô, Tamotsu; Masaki, Takashi

doi:10.1007/978-4-431-54032-8_16

Cited by 4 publications

(8 citation statements)

References 12 publications

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“…All living culms were checked from 1990 to 2001, but survival checks of living old culms were not conducted after 2003. Thus, the number of all living culms, consisting of new and surviving old culms, was calculated based on the survival rate of new culms (Niiyama et al, 2021) as follows:…”

Section: Methodsmentioning

confidence: 99%

“…The survival ratio (%) is shown in Table S1. Maximum culm longevities were 16.0, 2.8, and 7.1 years for S. borealis, S. nipponica, and S. ramosa, respectively (Niiyama et al, 2021). All living culms in a specific year t were calculated using the following equations:…”

Section: Methodsmentioning

confidence: 99%

“…Sasaella ramosa was considered a hybrid between the genera Sasa and Pleioblastus (Takahashi et al, 1994;Watanabe et al, 1991). Sasa borealis flowered in 2017, while no other dwarf bamboo species have been documented to flower during 32 years from 1988 to 2020 (Niiyama et al, 2021). These scientific names follow the Y-list (Yonekura & Kajita, 2003), but S. borealis has also been referred to as Sasamorpha borealis by Suzuki (1996) and Kobayashi (2017).…”

Section: Study Sitementioning

confidence: 99%

“…On a stand scale, these single or multiple dwarf bamboo species dominate on the forest floor and inhibit the regeneration of trees and other herbaceous plants in the understory (Makita, 1992;Nakashizuka, 1988). However, the degree of inhibition depends on the species, because the height, longevity, and density of culm vary among dwarf bamboo species (Niiyama et al, 2021;. The rate of expansion of rhizomes also differs among dwarf bamboo species (Kudo et al, 2011;Takagi, 1963;Tomimatsu et al, 2020).…”

Section: Introductionmentioning

confidence: 99%

“…In a previous study at the 6-ha permanent plot in the Ogawa Forest Reserve in Ibaraki Prefecture, central Japan (Niiyama et al, 2021), we clarified the population dynamics of three dwarf bamboo species in an oldgrowth beech forest on the Pacific Ocean side of Japan. Sasa borealis and S. nipponica were distributed in several patches and expanded into the surrounding herbaceous vegetation.…”

Section: Introductionmentioning

confidence: 99%

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Competitive ability of dwarf bamboo (Sasa borealis) through long‐term clonal growth in mixed dwarf bamboo communities in the understory of a temperate deciduous forest

Niiyama,

Shibata,

Saitoh

et al. 2023

Plant Species Biology

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We investigated the clonal competition of three co‐occurring dwarf bamboo species, Sasa borealis, Sasa nipponica, and Sasaella ramosa, for 32 years in an old‐growth beech forest in central Japan. A study plot (10 m × 24 m) was established to examine the culm dynamics of these species. Sasa borealis had a competitive advantage over the other species. It invaded the other bamboo populations at a rate of 0.84–0.89 m/y from 1988 to 2020, while S. nipponica invaded at a rate of 0.17 m/y until 2003. After that, S. nipponica started to retreat at a rate of 0.85 m/y along with the invasion of S. borealis until 2020. The invasion rate of S. borealis did not change before and after the competition with S. nipponica. Our results showed that it would take 13.9–14.8 years from S. borealis invasion for S. nipponica to disappear. The density of S. ramosa decreased but it did not disappear from the plot because it retreated at a slow rate of 0.08 m/y. Sasa borealis almost achieved its potential maximum culm density, but the other two bamboo species did not. If stable conditions were maintained, S. borealis would continue to invade, dominate, and eliminate the other bamboo species. The ecological traits of dwarf bamboo species, such as the maximum density, size, and longevity of culms, are good indicators for assessing their competitiveness. Our findings demonstrate that dwarf bamboo species are actually replaced by another bamboo species in the forest understory during a long period.

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Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%