O. Hagerup

574 total citations
12 papers, 184 citations indexed

About

O. Hagerup is a scholar working on Ecology, Evolution, Behavior and Systematics, Plant Science and Molecular Biology. According to data from OpenAlex, O. Hagerup has authored 12 papers receiving a total of 184 indexed citations (citations by other indexed papers that have themselves been cited), including 9 papers in Ecology, Evolution, Behavior and Systematics, 9 papers in Plant Science and 2 papers in Molecular Biology. Recurrent topics in O. Hagerup's work include Botanical Research and Chemistry (6 papers), Plant Taxonomy and Phylogenetics (3 papers) and Botany and Plant Ecology Studies (3 papers). O. Hagerup is often cited by papers focused on Botanical Research and Chemistry (6 papers), Plant Taxonomy and Phylogenetics (3 papers) and Botany and Plant Ecology Studies (3 papers). O. Hagerup collaborates with scholars based in Denmark and China. O. Hagerup's co-authors include John A. Small and Henry S. Conard and has published in prestigious journals such as New Phytologist, The Bryologist and Hereditas.

In The Last Decade

O. Hagerup

11 papers receiving 146 citations

Peers

O. Hagerup
Daniel Jeanmonod Switzerland
Batia Pazy Israel
Mauricio Velayos Spain
Sara Dart Canada
ARTUR HÅKANSSON Canada
Shin‐Ichi Morinaga Japan
Olivier Chauveau Brazil
D. V. Geltman Russia
Gildas Gâteblé France
Kwiton Jong United Kingdom
Daniel Jeanmonod Switzerland
O. Hagerup
Citations per year, relative to O. Hagerup O. Hagerup (= 1×) peers Daniel Jeanmonod

Countries citing papers authored by O. Hagerup

Since Specialization
Citations

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

Fields of papers citing papers by O. Hagerup

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of O. Hagerup

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

All Works

12 of 12 papers shown
1.
Hagerup, O.. (2010). STUDIES ON THE SIGNIFICANCE OF POLYPLOIDY III. DESCHAMPSIA AND AIRA. Hereditas. 25(2). 185–192. 6 indexed citations
2.
Hagerup, O.. (2010). STUDIES ON POLYPLOID ECOTYPES IN VACCINIUM ULIGINOSUM L. Hereditas. 18(1-2). 122–128. 14 indexed citations
3.
Hagerup, O.. (2010). STUDIES ON THE SIGNIFICANCE OF POLYPLOIDY. Hereditas. 26(3-4). 399–410. 9 indexed citations
4.
Hagerup, O.. (2010). NOTES ON SOME BOREAL POLYPLOIDS. Hereditas. 30(1-2). 152–160. 4 indexed citations
5.
Hagerup, O.. (2010). STUDIES ON THE SIGNIFICANCE OF POLYPLOIDY. II. ORCHIS. Hereditas. 24(1-2). 258–264. 5 indexed citations
6.
Hagerup, O.. (2010). ÜBER POLYPLOIDIE IN BEZIEHUNG ZU KLIMA, ÖKOLOGIE UND PHYLOGENIE. Hereditas. 16(1-2). 19–40. 51 indexed citations
7.
Hagerup, O.. (2010). A PECULIAR ASYMMETRICAL MITOSIS IN THE MICROSPORE OF ORCHIS. Hereditas. 24(1-2). 94–96.
8.
Conard, Henry S., et al.. (1962). A Botanical Atlas, Volume II. Mosses, Ferns, Conifers, Horsetails, Lycopods. Phylogeny. The Bryologist. 65(1). 68–68. 1 indexed citations
9.
Hagerup, O., et al.. (1959). A botanical atlas. Medical Entomology and Zoology. 2 indexed citations
10.
Hagerup, O.. (1957). Wind Autogamy in Arbutus. Bulletin du Jardin botanique de l État a Bruxelles. 27(1). 41–41. 3 indexed citations
11.
Hagerup, O., et al.. (1953). THRIPS POLLINATION OF ERICA TETRALIX. New Phytologist. 52(1). 1–7. 27 indexed citations
12.
Small, John A. & O. Hagerup. (1952). Pollination in the Faroes-in Spite of Rain and Poverty in Insects.. Bulletin of the Torrey Botanical Club. 79(3). 269–269. 62 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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2026