Naoki Koyama

2.1k total citations
53 papers, 1.4k citations indexed

About

Naoki Koyama is a scholar working on Social Psychology, Ecology, Evolution, Behavior and Systematics and Developmental Biology. According to data from OpenAlex, Naoki Koyama has authored 53 papers receiving a total of 1.4k indexed citations (citations by other indexed papers that have themselves been cited), including 33 papers in Social Psychology, 22 papers in Ecology, Evolution, Behavior and Systematics and 14 papers in Developmental Biology. Recurrent topics in Naoki Koyama's work include Primate Behavior and Ecology (31 papers), Animal Behavior and Reproduction (21 papers) and Animal Vocal Communication and Behavior (14 papers). Naoki Koyama is often cited by papers focused on Primate Behavior and Ecology (31 papers), Animal Behavior and Reproduction (21 papers) and Animal Vocal Communication and Behavior (14 papers). Naoki Koyama collaborates with scholars based in Japan, United States and Canada. Naoki Koyama's co-authors include Masayuki Nakamichi, Yukio Takahata, Michael A. Huffman, Hirohisa Hirai, Yasuhiro Go, Shigeru Suzuki, Alison Jolly, Laurence Fedigan, Sarah Gouzoules and Linda M. Fedigan and has published in prestigious journals such as Molecular and Cellular Biology, Journal of Pharmacology and Experimental Therapeutics and British Journal of Dermatology.

In The Last Decade

Naoki Koyama

51 papers receiving 1.3k citations

Peers

Countries citing papers authored by Naoki Koyama

Since Specialization

Citations

This map shows the geographic impact of Naoki 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 Naoki Koyama with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Naoki Koyama more than expected).

Fields of papers citing papers by Naoki Koyama

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Naoki 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 Naoki Koyama. The network helps show where Naoki Koyama may publish in the future.

Co-authorship network of co-authors of Naoki Koyama

This figure shows the co-authorship network connecting the top 25 collaborators of Naoki Koyama. A scholar is included among the top collaborators of Naoki 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 Naoki Koyama. Naoki Koyama is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

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20 of 20 papers shown

#	Work	Indexed citations
1	Investigation of relationship between process conditions and bead formability in wire additive manufacturing using Joule heating 2024 ·Journal of Advanced Mechanical Design Systems and Manufacturing ·Naoki Koyama, (unknown), Junichi Kaneko	1
2	Asking the right questions for mutagenicity prediction from BioMedical text 2023 ·npj Systems Biology and Applications ·(unknown), Nicolas K. Shinada, Naoki Koyama, (unknown), (unknown), (unknown), Atsushi Hakura, Shoji Asakura, Yukiko Matsuoka, Sucheendra K. Palaniappan	1
3	Analytical technologies to revolutionize the environmental mutagenesis-and genome- research -from the basics to the cutting-edge research-: the Open Symposium of the Japanese Environmental Mutagen and Genome Society (JEMS), 2022 2023 ·Genes and Environment ·Naoki Koyama, Akira Sassa	0
4	o-Aminoazotoluene, 7,12-dimethylbenz[a]anthracene, and N-ethyl-N-nitrosourea, which are mutagenic but not carcinogenic in the colon, rapidly induce colonic tumors in mice with dextran sulfate sodium-induced colitis 2022 ·Genes and Environment ·Atsushi Hakura, Naoki Koyama, (unknown), Jiro Sonoda, Shoji Asakura	3
5	A comparison of the lowest effective concentration in culture media for detection of chromosomal damage in vitro and in blood or plasma for detection of micronuclei in vivo 2022 ·Mutation Research/Genetic Toxicology and Environmental Mutagenesis ·David Kirkland, James Whitwell, Robert Smith, (unknown), Zhiying Ji, Julia Kenny, Naoki Koyama, David P. Lovell, Hans‐Jörg Martus, (unknown), Daniel J. Roberts, (unknown), Yoshifumi Uno, (unknown), Paul A. White, Andreas Zeller	1
6	Evaluation of acetone as a solvent for the Ames test 2020 ·Genes and Environment ·(unknown), (unknown), (unknown), Shoji Asakura, (unknown), Naoki Koyama, Atsushi Hakura	9
7	FINITE COVER BASED FLUID-STRUCTURE INTERACTION ANALYSYS INCLUDING FRACTURE OF STRUCTURE 2015 ·Journal of Japan Society of Civil Engineers Ser A2 (Applied Mechanics (AM)) ·Shinsuke Takase, Shuji Moriguchi, Kenjiro Terada, Naoki Koyama, Kenji KANEKO, Mao KURUMATANI, Junji Kato, Takashi KYOYA	0
8	Wif1 and Ifitm3 gene expression preferentially altered in the colon mucosa of benzo[a]pyrene pre-treated mice following exposure to dextran sulfate sodium 2015 ·Chemico-Biological Interactions ·Naoki Koyama, Atsushi Hakura, (unknown), Jiro Sonoda, (unknown), Osamu Tohyama, Shoji Asakura, (unknown), Satoru Hosokawa	5
9	Body mass of wild ring-tailed lemurs in Berenty Reserve, Madagascar, with reference to tick infestation: a preliminary analysis 2007 ·Primates ·Naoki Koyama, (unknown), Yoshi Kawamoto, Hirohisa Hirai, Yasuhiro Go, (unknown), Yukio Takahata	16
10	Muir–Torre syndrome caused by partial duplication of MSH2 gene by Alu-mediated nonhomologous recombination 2007 ·British Journal of Dermatology ·Koichi Yanaba, Hidemi Nakagawa, Yuko Takeda, Naoki Koyama, Kokichi Sugano	5
11	The relationship between female rank and reproductive parameters of the ringtailed lemur: a preliminary analysis 2007 ·Primates ·Yukio Takahata, Naoki Koyama, (unknown), (unknown), Masayuki Nakamichi, (unknown)	9
12	Influence of group size on reproductive success of female ring-tailed lemurs: distinguishing between IGFC and PFC hypotheses 2006 ·Primates ·Yukio Takahata, Naoki Koyama, (unknown), (unknown), Masayuki Nakamichi	13
13	INTER- AND WITHIN-TROOP COMPETITION OF FEMALE RING-TAILED LEMURS: A PRELIMINARY REPORT 2005 ·Kyoto University Research Information Repository (Kyoto University) ·Yukio Takahata, Naoki Koyama, (unknown), (unknown)	4
14	Long-term changes in dominance ranks among ring-tailed lemurs at Berenty Reserve, Madagascar 2005 ·Primates ·Naoki Koyama, (unknown), Masayuki Nakamichi, Yukio Takahata	18
15	Characterization and evolution of major histocompatibility complex class II genes in the aye-aye, Daubentonia madagascariensis 2004 ·Primates ·Yasuhiro Go, (unknown), Yoshi Kawamoto, (unknown), Naoki Koyama, (unknown), (unknown), Hirohisa Hirai	7
16	Identification of a new complementation group of the peroxisome biogenesis disorders andPEX14 as the mutated gene 2004 ·Human Mutation ·Nobuyuki Shimozawa, Toshiro Tsukamoto, (unknown), Yasuhiko Takemoto, Naoki Koyama, Yasuyuki Suzuki, Masayuki Komori, Takashi Osumi, Jeannette Gootjes, Ronald J. A. Wanders, Naomi Kondo	61
17	Intra-troop affiliative relationships of females with newborn infants in wild ring-tailed lemurs (Lemur catta) 2000 ·American Journal of Primatology ·Masayuki Nakamichi, Naoki Koyama	8
18	PRINS Analysis of the Telomeric Sequence in Seven Lemurs 2000 ·Chromosome Research ·Yasuhiro Go, (unknown), (unknown), (unknown), Naoki Koyama, Hirohisa Hirai	43
19	Why dominants do not consistently attain high mating and reproductive success: A review of longitudinal Japanese macaque studies 1999 ·Primates ·Yukio Takahata, Michael A. Huffman, Shigeru Suzuki, Naoki Koyama, Juichi Yamagiwa	44
20	Ticks found among the Wild Ringtailed Lemurs at the Berenty Reserve, Madagascar 1998 ·Kyoto University Research Information Repository (Kyoto University) ·Yukio Takahata, Yoshi Kawamoto, Hirohisa Hirai, (unknown), Naoki Koyama, (unknown), Hiroshi Suzuki	10

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.

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