Tomoo Okayasu

853 total citations
20 papers, 727 citations indexed

About

Tomoo Okayasu is a scholar working on Management, Monitoring, Policy and Law, Nature and Landscape Conservation and Ecology. According to data from OpenAlex, Tomoo Okayasu has authored 20 papers receiving a total of 727 indexed citations (citations by other indexed papers that have themselves been cited), including 17 papers in Management, Monitoring, Policy and Law, 14 papers in Nature and Landscape Conservation and 10 papers in Ecology. Recurrent topics in Tomoo Okayasu's work include Rangeland Management and Livestock Ecology (17 papers), Ecology and Vegetation Dynamics Studies (14 papers) and Rangeland and Wildlife Management (6 papers). Tomoo Okayasu is often cited by papers focused on Rangeland Management and Livestock Ecology (17 papers), Ecology and Vegetation Dynamics Studies (14 papers) and Rangeland and Wildlife Management (6 papers). Tomoo Okayasu collaborates with scholars based in Japan and Mongolia. Tomoo Okayasu's co-authors include Undarmaa Jamsran, Kazuhiko Takeuchi, Takehiro Sasaki, Toshiya Ohkuro, Satoru Okubo, Toshiya Okuro, Yasuhito Shirato, Megumi Muto, Kaoru Kakinuma and Yu Yoshihara and has published in prestigious journals such as Ecology, Journal of Ecology and Ecological Applications.

In The Last Decade

Tomoo Okayasu

20 papers receiving 693 citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Tomoo Okayasu Japan 13 402 372 280 204 149 20 727
Vroni Retzer Germany 14 330 0.8× 238 0.6× 330 1.2× 152 0.7× 146 1.0× 23 725
Undarmaa Jamsran Mongolia 18 521 1.3× 448 1.2× 425 1.5× 230 1.1× 186 1.2× 49 1.0k
Donald J. Bedunah United States 13 267 0.7× 276 0.7× 382 1.4× 167 0.8× 104 0.7× 24 767
Toshiya Ohkuro Japan 16 311 0.8× 202 0.5× 259 0.9× 186 0.9× 129 0.9× 32 657
Timm Hoffman South Africa 9 269 0.7× 148 0.4× 291 1.0× 152 0.7× 181 1.2× 16 642
Kim G. Roques United States 5 452 1.1× 162 0.4× 353 1.3× 312 1.5× 73 0.5× 9 671
Manfred Finckh Germany 14 363 0.9× 100 0.3× 211 0.8× 229 1.1× 207 1.4× 43 790
Hennie A. Snyman South Africa 14 341 0.8× 224 0.6× 321 1.1× 387 1.9× 131 0.9× 22 879
Diress Tsegaye Norway 15 113 0.3× 321 0.9× 330 1.2× 244 1.2× 77 0.5× 50 757
N.M. Moleele Botswana 9 192 0.5× 234 0.6× 212 0.8× 193 0.9× 58 0.4× 9 507

Countries citing papers authored by Tomoo Okayasu

Since Specialization
Citations

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

Fields of papers citing papers by Tomoo Okayasu

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Tomoo Okayasu

This figure shows the co-authorship network connecting the top 25 collaborators of Tomoo Okayasu. A scholar is included among the top collaborators of Tomoo Okayasu 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 Tomoo Okayasu. Tomoo Okayasu 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.
Kakinuma, Kaoru, Tomoo Okayasu, Undarmaa Jamsran, Toshiya Okuro, & Kazuhiko Takeuchi. (2014). Herding strategies during a drought vary at multiple scales in Mongolian rangeland. Journal of Arid Environments. 109. 88–91. 13 indexed citations
2.
Sasaki, Takehiro, Toshiya Ohkuro, Kaoru Kakinuma, et al.. (2013). Vegetation in a Post-Ecological Threshold State May Not Recover after Short-Term Livestock Exclusion in Mongolian Rangelands. Arid Land Research and Management. 27(1). 101–110. 18 indexed citations
3.
4.
Okayasu, Tomoo, Toshiya Okuro, Undarmaa Jamsran, & Kazuhiko Takeuchi. (2012). Degraded rangeland dominated by unpalatable forbs exhibits large-scale spatial heterogeneity. Plant Ecology. 213(4). 625–635. 10 indexed citations
5.
Okayasu, Tomoo, Toshiya Okuro, Undarmaa Jamsran, & Kazuhiko Takeuchi. (2011). Inherent density-dependency of wet-season range even at the extreme of nonequilibrium environments. Journal of Arid Environments. 78. 144–153. 5 indexed citations
6.
Okayasu, Tomoo, Toshiya Okuro, Undarmaa Jamsran, & Kazuhiko Takeuchi. (2011). Threshold Distinctions Between Equilibrium and Nonequilibrium Pastoral Systems Along a Continuous Climatic Gradient. Rangeland Ecology & Management. 64(1). 10–17. 10 indexed citations
7.
Okayasu, Tomoo, Toshiya Okuro, Undarmaa Jamsran, & Kazuhiko Takeuchi. (2010). An intrinsic mechanism for the co-existence of different survival strategies within mobile pastoralist communities. Agricultural Systems. 103(4). 180–186. 12 indexed citations
8.
Sasaki, Takehiro, Satoru Okubo, Tomoo Okayasu, et al.. (2010). Indicator species and functional groups as predictors of proximity to ecological thresholds in Mongolian rangelands. Plant Ecology. 212(2). 327–342. 41 indexed citations
9.
Okayasu, Tomoo, Toshiya Okuro, Undarmaa Jamsran, & Kazuhiko Takeuchi. (2010). Impact of the spatial and temporal arrangement of pastoral use on land degradation around animal concentration points. Land Degradation and Development. 21(3). 248–259. 5 indexed citations
10.
Hara, Yuji, et al.. (2009). Distribution, Amount and Institutional Backgrounds of Green Spaces Prepared within Subdivisions in the Urban Fringe of Bangkok. Journal of The Japanese Institute of Landscape Architecture. 72(5). 687–692. 3 indexed citations
11.
Sasaki, Takehiro, Satoru Okubo, Tomoo Okayasu, et al.. (2009). Two‐phase functional redundancy in plant communities along a grazing gradient in Mongolian rangelands. Ecology. 90(9). 2598–2608. 97 indexed citations
12.
Yoshihara, Yu, Takehiro Sasaki, Tomoo Okayasu, et al.. (2009). Comparison of vegetation changes along grazing gradients with different numbers of livestock. Journal of Arid Environments. 73(6-7). 687–690. 52 indexed citations
13.
Sasaki, Takehiro, Satoru Okubo, Tomoo Okayasu, et al.. (2009). Management applicability of the intermediate disturbance hypothesis across Mongolian rangeland ecosystems. Ecological Applications. 19(2). 423–432. 68 indexed citations
14.
Sasaki, Takehiro, Tomoo Okayasu, Toshiya Ohkuro, et al.. (2009). Rainfall variability may modify the effects of long-term exclosure on vegetation in Mandalgobi, Mongolia. Journal of Arid Environments. 73(10). 949–954. 32 indexed citations
15.
Sasaki, Takehiro, Tomoo Okayasu, Yasuhito Shirato, et al.. (2007). Can edaphic factors demonstrate landscape-scale differences in vegetation responses to grazing?. Plant Ecology. 194(1). 51–66. 33 indexed citations
16.
Sasaki, Takehiro, Tomoo Okayasu, Undarmaa Jamsran, & Kazuhiko Takeuchi. (2007). Threshold changes in vegetation along a grazing gradient in Mongolian rangelands. Journal of Ecology. 96(1). 145–154. 179 indexed citations
17.
Okayasu, Tomoo, Megumi Muto, Undarmaa Jamsran, & Kazuhiko Takeuchi. (2007). Spatially heterogeneous impacts on rangeland after social system change in Mongolia. Land Degradation and Development. 18(5). 555–566. 37 indexed citations
18.
Sasaki, Takehiro, Tomoo Okayasu, Yasuhito Shirato, Undarmaa Jamsran, & Kazuhiko Takeuchi. (2007). Quantifying the resilience of plant communities under different grazing intensities in a degraded shrubland: A case study in Mandalgobi, Mongolia. Grassland Science. 53(3). 192–195. 11 indexed citations
19.
Sasaki, Takehiro, et al.. (2005). Patterns of floristic composition under different grazing intensities in Bulgan, South Gobi, Mongolia. Grassland Science. 51(3). 235–242. 41 indexed citations
20.
Okayasu, Tomoo, et al.. (2001). Systematic Analysis of Periodic Vegetation Patterns. Progress of Theoretical Physics. 106(4). 705–720. 47 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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