Shin‐ichi Hayama

1.0k total citations
84 papers, 756 citations indexed

About

Shin‐ichi Hayama is a scholar working on Ecology, Genetics and Parasitology. According to data from OpenAlex, Shin‐ichi Hayama has authored 84 papers receiving a total of 756 indexed citations (citations by other indexed papers that have themselves been cited), including 22 papers in Ecology, 16 papers in Genetics and 13 papers in Parasitology. Recurrent topics in Shin‐ichi Hayama's work include Primate Behavior and Ecology (12 papers), Radioactive contamination and transfer (9 papers) and Avian ecology and behavior (9 papers). Shin‐ichi Hayama is often cited by papers focused on Primate Behavior and Ecology (12 papers), Radioactive contamination and transfer (9 papers) and Avian ecology and behavior (9 papers). Shin‐ichi Hayama collaborates with scholars based in Japan, United States and Zambia. Shin‐ichi Hayama's co-authors include Takuya Kato, Hideo Nigi, Toshinori Omi, Setsuko Nakanishi, Yoshi Kawamoto, Naomi Ishii, Kazuhiko Ochiai, Aki Tanaka, Shuichi Tsuchida and Yutaka Watanuki and has published in prestigious journals such as PLoS ONE, Applied and Environmental Microbiology and Scientific Reports.

In The Last Decade

Shin‐ichi Hayama

77 papers receiving 724 citations

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name h Career Trend Papers Cites
Shin‐ichi Hayama Japan 15 195 152 111 111 106 84 756
André Luíz Quagliatto Santos Brazil 16 182 0.9× 90 0.6× 76 0.7× 56 0.5× 110 1.0× 189 1.0k
Julia S. Lankton United States 12 122 0.6× 228 1.5× 110 1.0× 31 0.3× 120 1.1× 34 569
Ruth Cromie United Kingdom 16 183 0.9× 51 0.3× 26 0.2× 314 2.8× 144 1.4× 46 835
Josip Kusak Croatia 23 1.1k 5.5× 58 0.4× 141 1.3× 124 1.1× 84 0.8× 77 1.5k
Päl Prestrud Norway 20 731 3.7× 85 0.6× 210 1.9× 134 1.2× 80 0.8× 31 1.2k
Ron Verhagen Belgium 24 896 4.6× 145 1.0× 354 3.2× 345 3.1× 176 1.7× 46 1.7k
Nicholas C. Larter Canada 21 875 4.5× 99 0.7× 79 0.7× 83 0.7× 79 0.7× 70 1.2k
Matthew W. Perkins United Kingdom 15 356 1.8× 374 2.5× 102 0.9× 132 1.2× 83 0.8× 40 1.1k
Catherine M. Johnson United States 10 246 1.3× 226 1.5× 108 1.0× 78 0.7× 52 0.5× 12 518
John H. Schulz United States 18 470 2.4× 92 0.6× 172 1.5× 252 2.3× 18 0.2× 54 843

Countries citing papers authored by Shin‐ichi Hayama

Since Specialization
Citations

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

Fields of papers citing papers by Shin‐ichi Hayama

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Shin‐ichi Hayama. 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 Shin‐ichi Hayama. The network helps show where Shin‐ichi Hayama may publish in the future.

Co-authorship network of co-authors of Shin‐ichi Hayama

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

All Works

20 of 20 papers shown
1.
Hayama, Shin‐ichi, Setsuko Nakanishi, Aki Tanaka, et al.. (2024). Decline in the Conception Rate of Wild Japanese Monkeys after the Fukushima Daiichi Nuclear Power Plant Accident. Archives of Environmental Contamination and Toxicology. 86(4). 325–334. 1 indexed citations
2.
3.
Ito, Tsuyoshi, Takashi Hayakawa, Yuzuru Hamada, et al.. (2021). Phylogeographic history of Japanese macaques. Journal of Biogeography. 48(6). 1420–1431. 15 indexed citations
4.
Hayama, Shin‐ichi, et al.. (2021). Habitat Selection and Activity Patterns of Japanese Serows and Sika Deer with Currently Sympatric Distributions. Animals. 11(12). 3398–3398. 14 indexed citations
5.
Omi, Toshinori, Setsuko Nakanishi, Naomi Ishii, et al.. (2020). Concentrations of 137Cs radiocaesium in the organs and tissues of low-dose-exposed wild Japanese monkeys. BMC Research Notes. 13(1). 121–121. 6 indexed citations
6.
Tatsuta, Kuniaki, et al.. (2018). Total Synthesis and Structural Determination of XR774, a Tyrosine Kinase Inhibitor. The Journal of Organic Chemistry. 83(13). 7010–7018. 3 indexed citations
7.
Kato, Takuya, et al.. (2018). Infestation of introduced raccoons (Procyon lotor) with indigenous ixodid ticks on the Miura Peninsula, Kanagawa Prefecture, Japan. International Journal for Parasitology Parasites and Wildlife. 7(3). 355–359. 17 indexed citations
8.
Hayama, Shin‐ichi, Kazuhiko Ochiai, Setsuko Nakanishi, et al.. (2017). Small head size and delayed body weight growth in wild Japanese monkey fetuses after the Fukushima Daiichi nuclear disaster. Scientific Reports. 7(1). 3528–3528. 40 indexed citations
9.
10.
Kato, Takuya, et al.. (2016). Sex identification in Japanese birds using droppings as a source of DNA. 28(2). 51–70. 4 indexed citations
11.
Hayama, Shin‐ichi, Setsuko Nakanishi, Naomi Ishii, et al.. (2013). Concentration of Radiocesium in the Wild Japanese Monkey (Macaca fuscata) over the First 15 Months after the Fukushima Daiichi Nuclear Disaster. PLoS ONE. 8(7). e68530–e68530. 28 indexed citations
12.
Lee, Kenichi, Tadahisa Iwata, Takuya Kato, et al.. (2011). Prevalence of Salmonella, Yersinia and Campylobacter spp. in Feral Raccoons (Procyon lotor) and Masked Palm Civets (Paguma larvata) in Japan. Zoonoses and Public Health. 58(6). 424–431. 38 indexed citations
13.
Hayama, Shin‐ichi, et al.. (2010). Body Mass Changes of Japanese Rock PtarmiganLagopus Mutus Japonicusin Captivity. ORNITHOLOGICAL SCIENCE. 9(2). 149–155. 1 indexed citations
14.
Hayama, Shin‐ichi. (2002). Polychlorinated Dibenzo- p -Dioxins, Dibenzofurans, and Dioxin-Like Polychlorinated Biphenyls in Livers of Birds from Japan. Archives of Environmental Contamination and Toxicology. 42(2). 244–255. 42 indexed citations
15.
Iseki, Naomasa, Jun Hasegawa, Shin‐ichi Hayama, & Shigeki Masunaga. (2002). . Japanese Journal of Ornithology. 51(1). 37–55. 2 indexed citations
16.
Niizuma, Yasuaki, et al.. (2001). Benefits of mass reduction for commuting flight with heavy food load in Leach’s storm‐petrel, Oceanodroma leucorhoa. Ecological Research. 16(2). 197–203. 21 indexed citations
17.
Kato, Akiko, et al.. (1999). Preliminary report of new method for ECG measurement of exercising birds. Institutional Repository National Institute of Polar Research (National Institute of Polar Research (Japan)). 12. 40–46. 8 indexed citations
18.
Hayama, Shin‐ichi, et al.. (1996). Seasonal changes of body weight and food intake in captive sika deer(<i>Cerves nippon</i>). Japanese Journal of Zoo and Wildlife Medicine. 1(2). 119–124. 6 indexed citations
19.
Nigi, Hideo, Shin‐ichi Hayama, & Ryuzo Torii. (1989). Rise in age of sexual maturation in male Japanese monkeys at Takasakiyama in relation to nutritional conditions. Primates. 30(4). 571–575. 7 indexed citations
20.
Hayama, Shin‐ichi, et al.. (1988). A case of diverticular disease of the colon in a Japanese monkey (Macaca fuscata). Primates. 29(3). 423–426. 5 indexed citations

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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