Barbara Frei

2.1k total citations · 1 hit paper
37 papers, 1.5k citations indexed

About

Barbara Frei is a scholar working on Ecology, Nature and Landscape Conservation and Ecological Modeling. According to data from OpenAlex, Barbara Frei has authored 37 papers receiving a total of 1.5k indexed citations (citations by other indexed papers that have themselves been cited), including 25 papers in Ecology, 7 papers in Nature and Landscape Conservation and 7 papers in Ecological Modeling. Recurrent topics in Barbara Frei's work include Avian ecology and behavior (20 papers), Wildlife Ecology and Conservation (16 papers) and Species Distribution and Climate Change (7 papers). Barbara Frei is often cited by papers focused on Avian ecology and behavior (20 papers), Wildlife Ecology and Conservation (16 papers) and Species Distribution and Climate Change (7 papers). Barbara Frei collaborates with scholars based in Canada, United States and Germany. Barbara Frei's co-authors include Otto Sticher, Michael Heinrich, Claudia Weimann, Anita Ankli, Matthias Baltisberger, Elena M. Bennett, Kyle H. Elliott, Joseph J. Nocera, James W. Fyles and Delphine Renard and has published in prestigious journals such as SHILAP Revista de lepidopterología, Scientific Reports and Social Science & Medicine.

In The Last Decade

Barbara Frei

33 papers receiving 1.4k citations

Hit Papers

Medicinal plants in Mexico: healers' consensus and cultur... 1998 2026 2007 2016 1998 250 500 750
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. Medicinal plants in Mexico: healers' consensus and cultural importance
    1998 990 citations Michael Heinrich, Anita Ankli et al. Social Science & Medicine profile →

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Barbara Frei Canada 13 1.1k 463 269 209 194 37 1.5k
Alex Asase Ghana 22 886 0.8× 326 0.7× 430 1.6× 183 0.9× 240 1.2× 50 1.9k
Júlio Marcelino Monteiro Brazil 20 1.6k 1.5× 681 1.5× 363 1.3× 156 0.7× 295 1.5× 35 2.2k
Marcelo Alves Ramos Brazil 22 1.1k 1.0× 392 0.8× 318 1.2× 98 0.5× 172 0.9× 59 1.7k
Reinaldo Farias Paiva de Lucena Brazil 19 1.6k 1.5× 630 1.4× 542 2.0× 138 0.7× 151 0.8× 109 2.4k
Caroline S. Weckerle Switzerland 24 1.4k 1.3× 596 1.3× 237 0.9× 266 1.3× 211 1.1× 54 2.0k
Łukasz Łuczaj Poland 32 2.0k 1.9× 992 2.1× 245 0.9× 307 1.5× 179 0.9× 89 2.9k
Diego Rivera Spain 28 1.6k 1.5× 776 1.7× 125 0.5× 240 1.1× 128 0.7× 129 2.5k
Narel Y. Paniagua-Zambrana Bolivia 20 768 0.7× 290 0.6× 247 0.9× 83 0.4× 129 0.7× 81 1.6k
Shahina A. Ghazanfar United Kingdom 17 690 0.6× 215 0.5× 171 0.6× 124 0.6× 119 0.6× 51 1.4k
Inayat Ur Rahman Pakistan 21 812 0.7× 262 0.6× 97 0.4× 136 0.7× 65 0.3× 78 1.2k

Countries citing papers authored by Barbara Frei

Since Specialization
Citations

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

Fields of papers citing papers by Barbara Frei

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Barbara Frei

This figure shows the co-authorship network connecting the top 25 collaborators of Barbara Frei. A scholar is included among the top collaborators of Barbara Frei 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 Barbara Frei. Barbara Frei 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.
Frei, Barbara, et al.. (2025). Human recreational activity does not influence open cup avian nest survival in urban green spaces. Urban Ecosystems. 28(2). 24–24.
2.
3.
Frei, Barbara, et al.. (2024). Community‐science reveals delayed fall migration of waterfowl and spatiotemporal effects of a changing climate. Journal of Animal Ecology. 93(4). 377–392. 2 indexed citations
4.
Frei, Barbara, et al.. (2023). Moult migrant Tennessee Warblers undergo extensive stopover in peri-urban forests of southern Quebec. Canadian Journal of Zoology. 102(3). 272–285. 2 indexed citations
5.
Elliott, Kyle H., et al.. (2023). Peri-urban forest margins are important stopover sites for moult-migrating songbirds. Journal for Nature Conservation. 77. 126539–126539. 4 indexed citations
6.
Frei, Barbara, et al.. (2023). Sixty-years of community-science data suggest earlier fall migration and short-stopping of waterfowl in North America. Ornithological applications. 125(4). 8 indexed citations
7.
Smith, Adam C., Allison D. Binley, Brandon P.M. Edwards, et al.. (2023). Spatially explicit Bayesian hierarchical models improve estimates of avian population status and trends. Ornithological applications. 126(1). 7 indexed citations
8.
Fraser, Kevin C., et al.. (2022). Central-place foraging poses variable constraints year-round in a neotropical migrant. Movement Ecology. 10(1). 39–39. 3 indexed citations
9.
Frei, Barbara, et al.. (2022). Reduced diurnal activity and increased stopover duration by molting Swainson’s Thrushes. The Auk. 139(2). 12 indexed citations
10.
Desrochers, André, et al.. (2021). Spatial structure in migration routes maintained despite regional convergence among eastern populations of Swainson’s Thrushes. Movement Ecology. 9(1). 23–23. 10 indexed citations
11.
Frei, Barbara, et al.. (2019). Seasonal and temporal variation in scaled mass index of Black-capped Chickadees (<i>Poecile atricapillus</i>). The Canadian Field-Naturalist. 132(4). 368–377. 9 indexed citations
12.
Frei, Barbara, et al.. (2019). Point-of-care blood analyzers measure the nutritional state of eighteen free-living bird species. Comparative Biochemistry and Physiology Part A Molecular & Integrative Physiology. 240. 110594–110594. 25 indexed citations
13.
Frei, Barbara, Otto Sticher, & Michael Heinrich. (2000). Zapotec and Mixe use of Tropical Habitats for securing medicinal plants in MéXico. Economic Botany. 54(1). 73–81. 53 indexed citations
14.
Frei, Barbara, et al.. (1999). Erratum: Medical ethnobotany of the Zapotecs of the Isthmus-Sierra (Oaxaca, Mexico): Documentation and assessment of indigenous uses (Journal of Ethnopharmacology (1998) 62 (149-165)). UCL Discovery (University College London).
15.
Frei, Barbara, et al.. (1998). Medicinal and food plants: Isthmus Sierra Zapotec criteria for selection. ePublications@SCU (Southern Cross University). 72. 82–86. 14 indexed citations
16.
Frei, Barbara, Michael Heinrich, Peter M. Bork, et al.. (1998). Multiple screening of medicinal plants from Oaxaca, Mexico: ethnobotany and bioassays as a basis for phytochemical investigation. Phytomedicine. 5(3). 177–186. 21 indexed citations
17.
Frei, Barbara, Matthias Baltisberger, Otto Sticher, & Michael Heinrich. (1998). Medical ethnobotany of the Zapotecs of the Isthmus-Sierra (Oaxaca, Mexico): Documentation and assessment of indigenous uses. Journal of Ethnopharmacology. 62(2). 149–165. 113 indexed citations
18.
Heinrich, Michael, Anita Ankli, Barbara Frei, Claudia Weimann, & Otto Sticher. (1998). Medicinal plants in Mexico: healers' consensus and cultural importance. Social Science & Medicine. 47(11). 1859–1871. 990 indexed citations breakdown →
19.
Frei, Barbara, et al.. (1996). Sesquiterpenes with Antibacterial Activity fromEpaltes mexicana. Planta Medica. 62(1). 66–67. 17 indexed citations
20.
Frei, Barbara, et al.. (1996). Antibacterial hydroperoxysterols from Xanthosoma robustum. Phytochemistry. 41(4). 1191–1195. 40 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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