The Characteristics of Lucidophyllous Forest Flora and Conditions Endangering Them in Japan

Hashizume, Tamotsu; Ishida, Hiroaki; Kodate, S.; Minamiyama, Noriko

doi:10.5632/jila.65.609

Cited by 12 publications

(5 citation statements)

References 1 publication

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“…The total species number of deciduous hardwoods ≥2 cm DBH in the study plot was 30 species, but that of evergreen hardwoods was only 10 species. The species number of evergreen hardwoods decreases at higher elevations and latitudes (Hattori, Ishida, Kodate, & Minamiyama, 2002;Tsujino, 2016). Species more tolerant to freezing can distribute in colder areas, and generally tolerance to freezing is TA B L E 2 The ADGR of three growth forms by generalized linear mixed models based on AIC.…”

Section: Species Number Of Evergreen Hardwoodsmentioning

confidence: 99%

Stand dynamics and competition in a mixed forest at the northern distribution limit of evergreen hardwood species

Takahashi

Ikeyama

Okuhara

2018

Ecology and Evolution

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Tree species of three growth forms (evergreen conifers, deciduous hardwoods, and evergreen hardwoods) codominate at the northern distribution limit of evergreen hardwoods in central Japan. This study examined the stand dynamics and competition during 13 years at a single plot to reveal how three growth forms codominate at the ecotone. Species were characterized as large DBH and low tree density for evergreen conifers, and conversely for evergreen hardwoods. Total basal area increased during the examined period, accompanied with the reduction in tree density (i.e., mortality exceeded the recruitment rate). Mortality increased with time especially for small trees of deciduous hardwoods. The effect of competition among the three growth forms on tree growth was not detected. Species were classified into two axes. Ingrowth and recruitment rates of large evergreen conifers were lower than those of small evergreen hardwoods. The population growth rate was lower in species with greater mortality within each growth form. Deciduous hardwoods showed the highest mortality and lowest population growth rates among the three growth forms. Although the tree‐ring analysis revealed that disturbances occurred to some extent, the current disturbance regime would not trigger the regeneration of deciduous hardwoods. This study suggests that negative relations of maximum DBH with ingrowth and recruitment rates contribute to codominance of evergreen conifers and evergreen hardwoods, and more frequent or larger disturbances than at present are necessary for regeneration of deciduous hardwoods.

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Section: Species Number Of Evergreen Hardwoodsmentioning

confidence: 99%

Stand dynamics and competition in a mixed forest at the northern distribution limit of evergreen hardwood species

Takahashi

Ikeyama

Okuhara

2018

Ecology and Evolution

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“…Forest floor ferns are particularly abundant, and make up 24% of the component vascular plant species number of lucidophyllous forest (Hattori et al, 2002). According to Iwatsuki (1992), in Japan there are over 100 endangered species among the Pteridophyta.…”

Section: Introductionmentioning

confidence: 99%

Factors influencing species diversity of ferns and fern allies in fragmented forest patches in the Kyoto city area

Murakami

Maenaka

Morimoto

2005

Landscape and Urban Planning

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“…5b). Habitat loss and fragmentation were the major factors that caused the loss of species diversity in evergreen broad-leaved forests in Japan (Hattori 2002). The importance of applying predictive modeling to a species' distribution lies in the spatial identification of vulnerable habitats under the threats of anthropogenic activities.…”

Section: Effects Of Anthropogenic Activities Under the Current Conditmentioning

confidence: 99%

“…There have been many attempts to explain forest zonations in East Asia with reference to climate; some have reported that climatic factors are important (e.g., Ohsawa 1995). The evergreen broad-leaved forests in Japan exhibit high species diversity, which is a reflection of the complex environmental profile of the region and of the many endemic species (e.g., orchid), insects, and mammals that grow in the forests (Hattori et al 2002). However, land use changes have decreased and isolated the areas of lowland natural forests in Japan.…”

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confidence: 99%

Assessing the impact of land use and climate change on the evergreen broad-leaved species of Quercus acuta in Japan

et al. 2010

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To assess the impact of Quercus acuta, a dominant species in the evergreen broad-leaved forests of Japan, and its habitat shifts as a result of climate change, we predicted the potential habitats under the current climate and two climate change scenarios using a random forest (RF). The presence/absence records of Q. acuta were extracted from the Phytosociological Relevè Data Base as response variables, and four climatic variables (warmth index, WI; minimum temperature of the coldest month, TMC; summer precipitation, PRS; and winter precipitation, PRW) were used as predictor variables. The mean decrease in the Gini criterion revealed that WI was the most influential factor followed by TMC. The RF revealed a considerable increase in potential habitats (PHs) under the climate change scenarios for 2081-2100 (RCM20, 180,141 km 2 ; MIROC, 175,635 km 2 ) relative to the current climate (150,542 km 2 ). The land use variables were used for masking PH. The PH masked by land use (PHLU) was approximately half of the PH under the current conditions (74,567 km 2 ). Under the climate change scenarios and 1 km migration options, the PHLU were not increased relative to its value under the current conditions. The distribution of Q. acuta was restricted by the northward shift in northern Honshu, but expanded as a result of the upward shift into the mountain areas of Western Japan. Habitat fragmentation reduced the ability of migration to respond to climate change in the lowland areas of Japan.

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The Characteristics of Lucidophyllous Forest Flora and Conditions Endangering Them in Japan

Cited by 12 publications

References 1 publication

Stand dynamics and competition in a mixed forest at the northern distribution limit of evergreen hardwood species

Stand dynamics and competition in a mixed forest at the northern distribution limit of evergreen hardwood species

Factors influencing species diversity of ferns and fern allies in fragmented forest patches in the Kyoto city area

Assessing the impact of land use and climate change on the evergreen broad-leaved species of Quercus acuta in Japan

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