Per Ola Karis

26 papers and 513 indexed citations i.

About

Per Ola Karis is a scholar working on Ecology, Evolution, Behavior and Systematics, Plant Science and Cancer Research. According to data from OpenAlex, Per Ola Karis has authored 26 papers receiving a total of 513 indexed citations (citations by other indexed papers that have themselves been cited), including 22 papers in Ecology, Evolution, Behavior and Systematics, 18 papers in Plant Science and 15 papers in Cancer Research. Recurrent topics in Per Ola Karis’s work include Plant Diversity and Evolution (19 papers), Sesquiterpenes and Asteraceae Studies (15 papers) and Plant and Fungal Species Descriptions (9 papers). Per Ola Karis is often cited by papers focused on Plant Diversity and Evolution (19 papers), Sesquiterpenes and Asteraceae Studies (15 papers) and Plant and Fungal Species Descriptions (9 papers). Per Ola Karis collaborates with scholars based in Sweden, United States and South Africa. Per Ola Karis's co-authors include Simone Fior, Mari Källersjö, Kåre Bremer, Gabriele Casazza, Luigi Minuto, Francesco Sala, Arne A. Anderberg, Pia Eldenäs, Mark W. Chase and Helen J. Michaels and has published in prestigious journals such as American Journal of Botany, Journal of Biogeography and Taxon.

In The Last Decade

Co-authorship network of co-authors of Per Ola Karis i

Fields of papers citing papers by Per Ola Karis

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Per Ola Karis. 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 Per Ola Karis. The network helps show where Per Ola Karis may publish in the future.

Countries citing papers authored by Per Ola Karis

Since Specialization
Citations

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

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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2025