Hernán Ortega

1.9k total citations · 1 hit paper
55 papers, 1.0k citations indexed

About

Hernán Ortega is a scholar working on Nature and Landscape Conservation, Aquatic Science and Ecology. According to data from OpenAlex, Hernán Ortega has authored 55 papers receiving a total of 1.0k indexed citations (citations by other indexed papers that have themselves been cited), including 54 papers in Nature and Landscape Conservation, 42 papers in Aquatic Science and 5 papers in Ecology. Recurrent topics in Hernán Ortega's work include Fish biology, ecology, and behavior (54 papers), Fish Biology and Ecology Studies (42 papers) and Fish Ecology and Management Studies (31 papers). Hernán Ortega is often cited by papers focused on Fish biology, ecology, and behavior (54 papers), Fish Biology and Ecology Studies (42 papers) and Fish Ecology and Management Studies (31 papers). Hernán Ortega collaborates with scholars based in Peru, Brazil and United States. Hernán Ortega's co-authors include Max Hidalgo, Richard P. Vari, Javier A. Maldonado‐Ocampo, Pablo A. Tedesco, Fernando M. Carvajal‐Vallejos, Elizabeth P. Anderson, Mabel Maldonado, Sebastián Heilpern, Carlos Cañas and Andrea C. Encalada and has published in prestigious journals such as SHILAP Revista de lepidopterología, PLoS ONE and Global Change Biology.

In The Last Decade

Hernán Ortega

53 papers receiving 986 citations

Hit Papers

Fragmentation of Andes-to-Amazon connectivity by hydropow... 2018 2026 2020 2023 2018 50 100 150 200 250
What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if it has ≥500 total citations, achieves ≥1.5× the top-1% citation threshold for papers in the same subfield and year (this is the minimum needed to enter the top 1%, not the average within it), or reaches the top citation threshold in at least one of its specific research topics.

  1. Fragmentation of Andes-to-Amazon connectivity by hydropower dams
    2018 253 citations Elizabeth P. Anderson, Clinton N. Jenkins et al. Science Advances profile →

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Hernán Ortega Peru 16 794 512 284 114 95 55 1.0k
Javier A. Maldonado‐Ocampo Colombia 17 1.0k 1.3× 672 1.3× 355 1.3× 147 1.3× 156 1.6× 62 1.4k
Fernando M. Carvajal‐Vallejos Bolivia 13 488 0.6× 267 0.5× 222 0.8× 112 1.0× 84 0.9× 31 698
Chengzhi Ding China 18 606 0.8× 295 0.6× 496 1.7× 198 1.7× 117 1.2× 55 990
Murilo S. Dias Brazil 16 721 0.9× 344 0.7× 486 1.7× 206 1.8× 50 0.5× 30 1.0k
Carlos Bernardo Mascarenhas Alves Brazil 18 601 0.8× 331 0.6× 342 1.2× 150 1.3× 97 1.0× 58 884
Scott A. Bonar United States 20 925 1.2× 414 0.8× 805 2.8× 271 2.4× 106 1.1× 88 1.3k
Céline Jezequel France 16 657 0.8× 303 0.6× 463 1.6× 110 1.0× 54 0.6× 33 979
Ashley D. Ficke United States 5 668 0.8× 305 0.6× 588 2.1× 241 2.1× 136 1.4× 5 1.0k
Edmundo Díaz‐Pardo Mexico 13 863 1.1× 358 0.7× 575 2.0× 114 1.0× 118 1.2× 20 1.1k
Jean Carlo Gonçalves Ortega Brazil 15 710 0.9× 415 0.8× 317 1.1× 100 0.9× 32 0.3× 44 936

Countries citing papers authored by Hernán Ortega

Since Specialization
Citations

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

Fields of papers citing papers by Hernán Ortega

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Hernán Ortega

This figure shows the co-authorship network connecting the top 25 collaborators of Hernán Ortega. A scholar is included among the top collaborators of Hernán Ortega 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 Hernán Ortega. Hernán Ortega 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.
Ortega, Hernán, et al.. (2023). Fish fauna of the trans-Andean Tumbes river basin in northern Peru. Check List. 19(1). 91–114.
2.
Mariac, Cédric, Fabrice Duponchelle, Guido Miranda, et al.. (2022). Unveiling biogeographical patterns of the ichthyofauna in the Tuichi basin, a biodiversity hotspot in the Bolivian Amazon, using environmental DNA. PLoS ONE. 17(1). e0262357–e0262357. 5 indexed citations
3.
Ortega, Hernán, et al.. (2022). Fishes from Chira River basin, Piura, Peru. Revista Peruana de Biología. 29(3). e21993–e21993. 1 indexed citations
4.
Frederico, Renata G., Murilo S. Dias, Céline Jezequel, et al.. (2021). The representativeness of protected areas for Amazonian fish diversity under climate change. Aquatic Conservation Marine and Freshwater Ecosystems. 31(5). 1158–1166. 15 indexed citations
5.
Miranda, Rafael, et al.. (2021). Evaluating the influence of environmental variables on fish assemblages along Tropical Andes: considerations from ecology to conservation. Hydrobiologia. 849(20). 4569–4585. 9 indexed citations
6.
Cassemiro, Fernanda A. S., James S. Albert, Renata G. Frederico, et al.. (2021). Drivers of phylogenetic structure in Amazon freshwater fish assemblages. Journal of Biogeography. 49(2). 310–323. 4 indexed citations
7.
Herrera‐R, Guido A., Thierry Oberdorff, Elizabeth P. Anderson, et al.. (2020). The combined effects of climate change and river fragmentation on the distribution of Andean Amazon fishes. Global Change Biology. 26(10). 5509–5523. 59 indexed citations
8.
Ortega, Hernán, et al.. (2020). A new species of Mastiglanis Bockmann 1994 (Siluriformes: Heptapteridae) from the Amazon River basin, Peru. Zootaxa. 4820(2). zootaxa.4820.2.6–zootaxa.4820.2.6. 3 indexed citations
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11.
Anderson, Elizabeth P., Clinton N. Jenkins, Sebastián Heilpern, et al.. (2018). Fragmentation of Andes-to-Amazon connectivity by hydropower dams. Science Advances. 4(1). eaao1642–eaao1642. 253 indexed citations breakdown →
12.
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Ramírez, Jorge L., José Luís Olivan Birindelli, Daniel C. Carvalho, et al.. (2017). Revealing Hidden Diversity of the Underestimated Neotropical Ichthyofauna: DNA Barcoding in the Recently Described Genus Megaleporinus (Characiformes: Anostomidae). Frontiers in Genetics. 8. 149–149. 56 indexed citations
14.
Tarazona, Juán, et al.. (2017). Ictiofauna de la cuenca del río Aguaytía, Ucayali, Perú. Revista Peruana de Biología. 24(4). 331–331. 5 indexed citations
15.
Oberdorff, Thierry, Céline Jezequel, Melina Campero, et al.. (2015). Opinion Paper: how vulnerable are Amazonian freshwater fishes to ongoing climate change?. Journal of Applied Ichthyology. 31. 4–9. 34 indexed citations
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Ortega, Hernán, et al.. (2010). Lista anotada de los peces de aguas continentales del Perú: Estado actual del conocimiento, distribución, usos y aspectos de conservación. 16 indexed citations
18.
Ortega, Hernán, et al.. (2006). Listado de los peces de la cuenca del río Putumayo en su sector colombo - peruano. Biota Colombiana. 7(1). 95–111. 10 indexed citations
19.
Ortega, Hernán, et al.. (2006). Estudio preliminar de ictioplancton de la Amazonia peruana con énfasis en la familia Pimelodidae. Revista Peruana de Biología. 13(3). 263–265. 3 indexed citations
20.
Ortega, Hernán & Richard P. Vari. (1986). Annotated checklist of the freshwater fishes of Peru. Smithsonian contributions to zoology. 1–25. 80 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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