Masahiro Nakamura
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View article: Physiological profiling of the soil microbe community using the <scp>EcoPlate</scp> and assessment of soil properties at 74 planted forest sites across Japan
Physiological profiling of the soil microbe community using the <span>EcoPlate</span> and assessment of soil properties at 74 planted forest sites across Japan Open
Due to policies supporting large‐scale expansion of plantation forestry, about 40% of the forests in Japan are planted forests, such as Japanese cedar ( Cryptomeria japonica ) and hinoki cypress ( Chamaecyparis obtusa ). We present the lar…
View article: Insectivorous birds and bats outperform ants in the top‐down regulation of arthropods across strata of a Japanese temperate forest
Insectivorous birds and bats outperform ants in the top‐down regulation of arthropods across strata of a Japanese temperate forest Open
Birds, bats and ants are recognised as significant arthropod predators. However, empirical studies reveal inconsistent trends in their relative roles in top‐down control across strata. Here, we describe the differences between forest strat…
View article: Insectivorous birds and bats outperform ants in the top-down regulation of arthropods across strata of a Japanese temperate forest
Insectivorous birds and bats outperform ants in the top-down regulation of arthropods across strata of a Japanese temperate forest Open
Birds, bats, and ants are recognized as significant arthropod predators. However, empirical studies reveal inconsistent trends in their relative roles in top-down control across strata. Here, we describe the differences between forest stra…
View article: Perspective: sustainability challenges, opportunities and solutions for long-term ecosystem observations
Perspective: sustainability challenges, opportunities and solutions for long-term ecosystem observations Open
As interest in natural capital grows and society increasingly recognizes the value of biodiversity, we must discuss how ecosystem observations to detect changes in biodiversity can be sustained through collaboration across regions and sect…
View article: Response of Background Herbivory in Mature Birch Trees to Global Warming
Response of Background Herbivory in Mature Birch Trees to Global Warming Open
Given the time scale based on the duration of exposure to global warming, natural climate-gradient studies and experimental manipulations have detected long-term (decades to centuries) and short-term (years to decades) ecological responses…
View article: ALS-Causing Protein TDP-43 Impairs SREBP2 Cholesterol Regulation
ALS-Causing Protein TDP-43 Impairs SREBP2 Cholesterol Regulation Open
Dyslipidemia is correlated with the prognosis of amyotrophic lateral sclerosis (ALS), a fatal motor neuron disorder characterized pathologically by TAR DNA binding protein (TDP-43) inclusions. We investigated molecular mechanisms of lipid …
View article: Research on the utilization of urban structure visualization in geography education of high school
Research on the utilization of urban structure visualization in geography education of high school Open
人口減少社会を迎え，集約型都市構造の実現に向けた取り組みが進められている．都市構造の将来像を定める際の合意形成の重要性については論を待たず，このために，都市構造についての市民の理解を深めることは急務である．都市構造についてのコミュニケーションツールである「都市構造可視化」はその開発から１５年の歴史を経て，全国の都市計画の現場への普及を実現した．一方，地理教育の現場でも１５年にわたる取り組みの成果として，高校地理教育の義務化がなされることとなった．本稿では，それら２つの取り組…
View article: Effects of Large-Scale Nitrogen Fertilization on Insect–Plant Interactions in the Canopy of Tall Alder Trees with N2-Fixing Traits in a Cool Temperate Forest
Effects of Large-Scale Nitrogen Fertilization on Insect–Plant Interactions in the Canopy of Tall Alder Trees with N2-Fixing Traits in a Cool Temperate Forest Open
Nitrogen (N) deposition is expected to influence forests. The effects of large-scale N fertilization on canopy layer insect–plant interactions in stands of tall, atmospheric nitrogen (N2)-fixing tree species have never been assessed. We co…
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Issue Information Open
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View article: Toward more data publication of long‐term ecological observations
Toward more data publication of long‐term ecological observations Open
Data papers, such as those published by Ecological Research , encourage the retrieval and archiving of valuable unpublished, undigitized ecological observational data. However, scientists remain hesitant to submit their data to such forums…
View article: Ontogenetic consistency in oak defence syndromes
Ontogenetic consistency in oak defence syndromes Open
Plant species allocate resources to multiple defensive traits simultaneously, often leading to so‐called defence syndromes (i.e. suites of traits that are co-expressed across several species). While reports of ontogenetic variation in plan…
View article: Elastic properties of SmPt2Cd20 probed by ultrasound measurements
Elastic properties of SmPt2Cd20 probed by ultrasound measurements Open
Ultrasound measurements have been carried out to investigate the elastic and low-temperature 4f-electronic properties of the Sm-based 1-2-20 system SmPt2Cd20. It was found that SmPt2Cd20 shows a pronounced elastic softening toward the magn…
View article: Filling the gaps in ecological studies of socioecological systems
Filling the gaps in ecological studies of socioecological systems Open
Our human‐dominant world can be viewed as being built up in two parts, social and ecological systems, each consisting of multi‐level organizations that interact in a complex manner. However, there are knowledge gaps among those interaction…
View article: COASTAL TOPOGRAPHIC VARIATIONS AROUND LAKE SAROMA BY METEOROLOGICAL AND OCEANOGRAPHIC CHANGES
COASTAL TOPOGRAPHIC VARIATIONS AROUND LAKE SAROMA BY METEOROLOGICAL AND OCEANOGRAPHIC CHANGES Open
近年，降雨状況などの気象変化や波向の経年変化などの海象変化により，サロマ湖沿岸域では第2湖口が閉塞するなど，これまでに生じていなかった地形変化が生じている．本研究は，サロマ湖沿岸域について，気象・海象条件の変化に伴う地形変化特性を検討した．さらに，一次元河床変動計算モデルにより河川流出土砂量を推定し，入射波浪エネルギーを波向別に取り扱った汀線変化解析モデルと組み合わせることにより，サロマ湖沿岸域の地形変化の定量的な予測手法を検討した．検討の結果，近年のサロマ湖沿岸域の汀線変…
View article: Passively Q-Switched Single-Mode Microchip Laser Amplifying System Pumped with a Fiber Coupling QCW-LD Stack
Passively Q-Switched Single-Mode Microchip Laser Amplifying System Pumped with a Fiber Coupling QCW-LD Stack Open
Passively Q-switched microchip lasers have attracted much attention recently, for application in fields including LiDAR and laser manufacturing. Recently, high-power single longitudinal- and transversemode microchip lasers have been used i…
View article: Leaf phenology and insect grazing of Japanese white birch saplings grown under free-air ozone exposure
Leaf phenology and insect grazing of Japanese white birch saplings grown under free-air ozone exposure Open
Ground-level ozone (O3) increases yearly and negatively affects the growth of birches via leaf dynamics. Leaf area is directly related to plant production and is usually reduced by elevated O3 (eO3) and insect herbivores. The objective of …