Ivan Nielsen

931 total citations
42 papers, 711 citations indexed

About

Ivan Nielsen is a scholar working on Ecology, Evolution, Behavior and Systematics, Plant Science and Molecular Biology. According to data from OpenAlex, Ivan Nielsen has authored 42 papers receiving a total of 711 indexed citations (citations by other indexed papers that have themselves been cited), including 28 papers in Ecology, Evolution, Behavior and Systematics, 16 papers in Plant Science and 8 papers in Molecular Biology. Recurrent topics in Ivan Nielsen's work include Plant Diversity and Evolution (14 papers), Plant and animal studies (8 papers) and African Botany and Ecology Studies (7 papers). Ivan Nielsen is often cited by papers focused on Plant Diversity and Evolution (14 papers), Plant and animal studies (8 papers) and African Botany and Ecology Studies (7 papers). Ivan Nielsen collaborates with scholars based in Denmark and France. Ivan Nielsen's co-authors include Henrik Balslev, Lauritz Holm-Nielsen, Brian M. Boom, Gábor L. Löveï, Cecil C. Konijnendijk, Helle Munk Ravnborg, Ole Mertz, Justin Moat, Raymond Rabévohitra and John Villiers and has published in prestigious journals such as Biodiversity and Conservation, Biofabrication and Kew Bulletin.

In The Last Decade

Ivan Nielsen

38 papers receiving 658 citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Ivan Nielsen Denmark 11 365 213 193 183 127 42 711
C.E. Ridsdale Netherlands 12 258 0.7× 130 0.6× 232 1.2× 161 0.9× 128 1.0× 39 575
E. Soepadmo Malaysia 13 314 0.9× 180 0.8× 162 0.8× 179 1.0× 59 0.5× 32 561
Raquel Rejane Bonato Negrelle Brazil 15 283 0.8× 339 1.6× 221 1.1× 103 0.6× 73 0.6× 94 891
Ingrid Parmentier Belgium 16 310 0.8× 242 1.1× 247 1.3× 123 0.7× 108 0.9× 29 665
Dorothy Sue Dunn de Araújo Brazil 17 484 1.3× 183 0.9× 320 1.7× 57 0.3× 144 1.1× 43 839
Nelson Zamora Costa Rica 15 276 0.8× 166 0.8× 372 1.9× 124 0.7× 215 1.7× 49 744
Vinod Prasad Khanduri India 14 250 0.7× 261 1.2× 176 0.9× 108 0.6× 78 0.6× 72 578
Birgit Orthen Germany 12 251 0.7× 363 1.7× 361 1.9× 129 0.7× 385 3.0× 15 857
Ademir Reis Brazil 16 304 0.8× 331 1.6× 342 1.8× 74 0.4× 196 1.5× 52 920
K. H. Batanouny Egypt 16 282 0.8× 464 2.2× 123 0.6× 105 0.6× 112 0.9× 60 765

Countries citing papers authored by Ivan Nielsen

Since Specialization
Citations

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

Fields of papers citing papers by Ivan Nielsen

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Ivan Nielsen

This figure shows the co-authorship network connecting the top 25 collaborators of Ivan Nielsen. A scholar is included among the top collaborators of Ivan Nielsen 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 Ivan Nielsen. Ivan Nielsen 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.
Nielsen, Ivan & Jean‐Marie Veillon. (2005). A new species of Callerya (Leguminosae, Papilionoideae, Millettieae) from New Caledonia. Adansonia. 27(1). 81–84. 2 indexed citations
2.
Nielsen, Ivan. (2004). A new inland species of Canavalia (Leguminosae, Papilionoideae) from New Caledonia. Adansonia. 26(2). 149–151. 2 indexed citations
3.
4.
5.
Balslev, Henrik, et al.. (1998). Species count of vascular plants in one hectare of humid lowland forest in Amazonian Ecuador.. Biofabrication. 9(3). 585–594. 33 indexed citations
6.
7.
Nielsen, Ivan. (1996). Hind, D. J. N., Jeffrey, C. & Pope, G. V. (eds) 1995. Nordic Journal of Botany. 16(2). 138–138. 1 indexed citations
8.
Nielsen, Ivan. (1994). Nordic Journal of Botany:Bremer, K. 1994. Asteraceae: cladistics and classification. Nordic Journal of Botany. 14(4). 462–462. 3 indexed citations
9.
Nielsen, Ivan. (1994). Pauwels, L. 1993. Nzayilu N‘ ti. Guide des arbres et arbustes de la région de Kinshasa ‐ Brazzaville. Nordic Journal of Botany. 14(5). 490–490. 8 indexed citations
10.
Nielsen, Ivan. (1993). Flowers of Annonaceae: morphology, classification and evolution. Nordic Journal of Botany. 13(5). 500–500. 87 indexed citations
11.
Nielsen, Ivan. (1992). A new species of Canavalia (Leguminosae-Papilionoideae) from New Caledonia. 14(3-4). 347–350. 2 indexed citations
12.
Nielsen, Ivan & Helen C. F. Hopkins. (1992). Flora Malesiana. Series I, Spermatophyta: flowering plants. Volume 11, part. 1: Mimosaceae (Leguminosae-Mimosoideae).. 1–226. 3 indexed citations
13.
Boom, Brian M., Lauritz Holm-Nielsen, Ivan Nielsen, & Henrik Balslev. (1990). Tropical Forests. Botanical Dynamics, Speciation and Diversity.. Brittonia. 42(1). 83–83. 136 indexed citations
14.
Holm-Nielsen, Lauritz, Ivan Nielsen, & Henrik Balslev. (1989). Tropical forests : botanical dynamics, speciation and diversity. Academic Press eBooks. 128 indexed citations
15.
Nielsen, Ivan. (1985). The Malesian species of Acacia and Albizia (Leguminosae - Mimosoideae). 81. 12 indexed citations
16.
Nielsen, Ivan, et al.. (1984). Studies in the Malesian, Australian and Pacific Ingeae (Leguminosae-Mimosoideae) : the genera Archidendropsis, Wallaceodendron, Paraserianthes, Pararchidendron and Serianthes (part 3). Zenodo (CERN European Organization for Nuclear Research). 6(1). 79–111. 1 indexed citations
17.
Nielsen, Ivan, et al.. (1984). The genus Archidendron (Leguminosae – Mimosoideae). Nordic Journal of Botany. 4(6). 770–770. 11 indexed citations
18.
Nielsen, Ivan. (1983). Additional Notes on Chinese and Indo-Chinese Species of Archidendron. Journal of Systematics and Evolution. 21(2). 164–169. 2 indexed citations
19.
Nielsen, Ivan. (1979). Notes on the genus Albizia Durazz. (Leguminosæ-Mimosoideæ) in Mainland S.E. Asia. Adansonia.. 19(2). 199–229. 6 indexed citations
20.
Nielsen, Ivan. (1979). Notes on the genera Archidendron F . v. Mueller and Pithecellobium Martius in Mainland S. E . Asia. Adansonia.. 19(1). 3–37. 2 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.

Explore authors with similar magnitude of impact

Breakdown of academic impact, for papers by C.E. Ridsdale Breakdown of academic impact, for papers by E. Soepadmo Breakdown of academic impact, for papers by Raquel Rejane Bonato Negrelle Breakdown of academic impact, for papers by Ingrid Parmentier Breakdown of academic impact, for papers by Dorothy Sue Dunn de Araújo Breakdown of academic impact, for papers by Nelson Zamora Breakdown of academic impact, for papers by Vinod Prasad Khanduri Breakdown of academic impact, for papers by Birgit Orthen Breakdown of academic impact, for papers by Ademir Reis Breakdown of academic impact, for papers by K. H. Batanouny
Rankless by CCL
2026