Kohei Koyama

1.1k total citations
34 papers, 398 citations indexed

About

Kohei Koyama is a scholar working on Nature and Landscape Conservation, Ecology, Evolution, Behavior and Systematics and Plant Science. According to data from OpenAlex, Kohei Koyama has authored 34 papers receiving a total of 398 indexed citations (citations by other indexed papers that have themselves been cited), including 16 papers in Nature and Landscape Conservation, 15 papers in Ecology, Evolution, Behavior and Systematics and 15 papers in Plant Science. Recurrent topics in Kohei Koyama's work include Plant Water Relations and Carbon Dynamics (15 papers), Ecology and Vegetation Dynamics Studies (14 papers) and Plant and animal studies (11 papers). Kohei Koyama is often cited by papers focused on Plant Water Relations and Carbon Dynamics (15 papers), Ecology and Vegetation Dynamics Studies (14 papers) and Plant and animal studies (11 papers). Kohei Koyama collaborates with scholars based in Japan, Spain and United States. Kohei Koyama's co-authors include Kihachiro Kikuzawa, Shuhei Takemoto, Mamoru Mimuro, Seiji Akimoto, Tohru Tsuchiya, Makio Yokono, Duncan D. Smith, Masayuki Ushio, Yoshiki Hidaka and Hideaki Miyashita and has published in prestigious journals such as PLoS ONE, Scientific Reports and The American Naturalist.

In The Last Decade

Kohei Koyama

33 papers receiving 391 citations

Peers

Countries citing papers authored by Kohei Koyama

Since Specialization

Citations

This map shows the geographic impact of Kohei Koyama's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by Kohei Koyama with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Kohei Koyama more than expected).

Fields of papers citing papers by Kohei Koyama

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Kohei Koyama. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by Kohei Koyama. The network helps show where Kohei Koyama may publish in the future.

Co-authorship network of co-authors of Kohei Koyama

This figure shows the co-authorship network connecting the top 25 collaborators of Kohei Koyama. A scholar is included among the top collaborators of Kohei Koyama based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with Kohei Koyama. Kohei Koyama is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

Sort: Min cites: Since: Top N: Style:

20 of 20 papers shown

#	Work	Indexed citations
1	Scaling of shoot and root respiration of woody and herbaceous plants 2025 ·Proceedings of the Royal Society B Biological Sciences ·Yoko Kurosawa, Shigeta Mori, Juan Pedro Ferrio, Tomohiro Nishizono, Oxana V. Masyagina, Keiko Yamaji, Kohei Koyama, (unknown), (unknown), Tomoki Hoshino, Hideki Murayama, Mitsuharu Yagi, Masayuki Yokozawa, Shingo Tomiyama	0
2	Leaf Area Estimation by Photographing Leaves Sandwiched between Transparent Clear File Folder Sheets 2023 ·Horticulturae ·Kohei Koyama	8
3	A new fractal index to classify forest fragmentation and disorder 2023 ·Landscape Ecology ·Daniel Peptenatu, Ion Andronache, Helmut Ahammer, Marko Radulović, Jennifer Costanza, Herbert F. Jelinek, Antonio Di Ieva, Kohei Koyama, (unknown), (unknown), (unknown), (unknown), (unknown), Cristian Constantin Drăghici, Marian Marin, Daniel Constantin Diaconu, Rasmus Fensholt, Erica A. Newman	8
4	The morphology and nutrient content drive the leaf carbon capture and economic trait variations in subtropical bamboo forest 2023 ·Frontiers in Plant Science ·(unknown), (unknown), Kohei Koyama, Dandan Hu, Quanlin Zhong, Dongliang Cheng	4
5	Comparative physiology of canopy tree leaves in evergreen and deciduous forests in lowland Thailand 2023 ·Scientific Data ·Atsushi Ishida, Keiko Yamaji, Takashi Nakano, (unknown), (unknown), Kenichi Yoshimura, (unknown), Takahisa Maeda, Jin Yoshimura, Kohei Koyama, Sapit Diloksumpun, Dokrak Marod	4
6	Ontogenetic changes in root and shoot respiration, fresh mass and surface area of Fagus crenata 2022 ·Annals of Botany ·Yoko Kurosawa, Shigeta Mori, Mofei Wang, Juan Pedro Ferrio, Tomohiro Nishizono, Keiko Yamaji, Kohei Koyama, (unknown), (unknown)	5
7	Diurnal Change of the Photosynthetic Light-Response Curve of Buckbean (Menyanthes trifoliata), an Emergent Aquatic Plant 2022 ·Plants ·(unknown), Kohei Koyama, Narayan Bhusal	7
8	Consistent scaling of whole-shoot respiration between Moso bamboo (Phyllostachys pubescens) and trees 2021 ·Journal of Plant Research ·Mofei Wang, Shigeta Mori, Yoko Kurosawa, Juan Pedro Ferrio, Keiko Yamaji, Kohei Koyama	7
9	Initial burst of root development with decreasing respiratory carbon cost in Fagus crenata Blume seedlings 2020 ·Plant Species Biology ·Yoko Kurosawa, Shigeta Mori, Mofei Wang, Juan Pedro Ferrio, Keiko Yamaji, Kohei Koyama, (unknown), (unknown)	9
10	The arrangement of lateral veins along the midvein of leaves is not related to leaf phyllotaxis 2018 ·Scientific Reports ·Kohei Koyama, (unknown)	4
11	Morning reduction of photosynthetic capacity before midday depression 2014 ·Scientific Reports ·Kohei Koyama, Shuhei Takemoto	36
12	Dynamic Scaling in the Growth of a Non-Branching Plant, Cardiocrinum cordatum 2012 ·PLoS ONE ·Kohei Koyama, Yoshiki Hidaka, Masayuki Ushio	14
13	Geometrical similarity analysis of photosynthetic light response curves, light saturation and light use efficiency 2010 ·Oecologia ·Kohei Koyama, Kihachiro Kikuzawa	31
14	Is Whole‐Plant Photosynthetic Rate Proportional to Leaf Area? A Test of Scalings and a Logistic Equation by Leaf Demography Census 2009 ·The American Naturalist ·Kohei Koyama, Kihachiro Kikuzawa	44
15	Oxygen evolution in the thylakoid-lacking cyanobacterium Gloeobacter violaceus PCC 7421 2008 ·Biochimica et Biophysica Acta (BBA) - Bioenergetics ·Kohei Koyama, Hiroyuki Suzuki, Takumi Noguchi, Seiji Akimoto, Tohru Tsuchiya, Mamoru Mimuro	12
16	Intraspecific Variation in Leaf Life Span for the Semi-evergreen Liana Akebia trifoliata is Caused by Both Seasonal and Aseasonal Factors in a Temperate Forest 2008 ·Journal of Ecology and Environment ·Kohei Koyama, Kihachiro Kikuzawa	5
17	Energy transfer processes in Gloeobacter violaceus PCC 7421 that possesses phycobilisomes with a unique morphology 2007 ·Biochimica et Biophysica Acta (BBA) - Bioenergetics ·Makio Yokono, Seiji Akimoto, Kohei Koyama, Tohru Tsuchiya, Mamoru Mimuro	47
18	New linker proteins in phycobilisomes isolated from the cyanobacterium Gloeobacter violaceus PCC 7421 2006 ·FEBS Letters ·Kohei Koyama, Tohru Tsuchiya, Seiji Akimoto, Makio Yokono, Hideaki Miyashita, Mamoru Mimuro	21
19	Fluorescence properties of the chlorophyll d-dominated cyanobacterium Acaryochloris sp. strain Awaji 2005 ·Journal of Photochemistry and Photobiology A Chemistry ·Seiji Akimoto, Akio Murakami, Makio Yokono, Kohei Koyama, Tohru Tsuchiya, Hideaki Miyashita, Iwao Yamazaki, Mamoru Mimuro	17
20	A method for assessing loss in milk yield due to subclinical mastitis 1990 ·Journal of Dairy Research ·(unknown), (unknown), Kohei Koyama, (unknown)	7

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

Explore authors with similar magnitude of impact