Raymond Jansen

1.4k total citations
70 papers, 978 citations indexed

About

Raymond Jansen is a scholar working on Ecology, Genetics and Nature and Landscape Conservation. According to data from OpenAlex, Raymond Jansen has authored 70 papers receiving a total of 978 indexed citations (citations by other indexed papers that have themselves been cited), including 45 papers in Ecology, 17 papers in Genetics and 16 papers in Nature and Landscape Conservation. Recurrent topics in Raymond Jansen's work include Wildlife Ecology and Conservation (28 papers), Avian ecology and behavior (19 papers) and Ecology and Vegetation Dynamics Studies (15 papers). Raymond Jansen is often cited by papers focused on Wildlife Ecology and Conservation (28 papers), Avian ecology and behavior (19 papers) and Ecology and Vegetation Dynamics Studies (15 papers). Raymond Jansen collaborates with scholars based in South Africa, Netherlands and United Kingdom. Raymond Jansen's co-authors include Antoinette Kotzé, Desiré L. Dalton, Darren W. Pietersen, A. Ter Maat, Timothy M. Crowe, Maxwell Kwame Boakye, Andrew E. McKechnie, Philip A. R. Hockey, R.M. Little and N. P. A. Bos and has published in prestigious journals such as SHILAP Revista de lepidopterología, PLoS ONE and Journal of Neurophysiology.

In The Last Decade

Raymond Jansen

68 papers receiving 939 citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Raymond Jansen South Africa 20 527 209 194 172 160 70 978
Claudio Veloso Chile 22 788 1.5× 251 1.2× 693 3.6× 119 0.7× 119 0.7× 73 1.4k
Tom Reader United Kingdom 21 347 0.7× 276 1.3× 492 2.5× 197 1.1× 69 0.4× 53 1.3k
Uri Shanas Israel 18 464 0.9× 118 0.6× 304 1.6× 100 0.6× 88 0.6× 65 886
Roi Dor Israel 21 504 1.0× 320 1.5× 661 3.4× 147 0.9× 76 0.5× 45 1.1k
Benjamin G. Fanson Australia 18 368 0.7× 194 0.9× 264 1.4× 148 0.9× 40 0.3× 60 1.1k
Wang Zuwang China 19 499 0.9× 162 0.8× 282 1.5× 146 0.8× 85 0.5× 49 934
John D. Harder United States 20 547 1.0× 229 1.1× 240 1.2× 74 0.4× 187 1.2× 43 1.0k
Bruce A. Schulte United States 21 861 1.6× 245 1.2× 308 1.6× 117 0.7× 254 1.6× 73 1.4k
Emily W. Ruell United States 13 528 1.0× 411 2.0× 394 2.0× 198 1.2× 43 0.3× 27 1.0k
Giorgio Malacarne Italy 24 795 1.5× 105 0.5× 732 3.8× 276 1.6× 87 0.5× 72 1.5k

Countries citing papers authored by Raymond Jansen

Since Specialization
Citations

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

Fields of papers citing papers by Raymond Jansen

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Raymond Jansen

This figure shows the co-authorship network connecting the top 25 collaborators of Raymond Jansen. A scholar is included among the top collaborators of Raymond Jansen 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 Raymond Jansen. Raymond Jansen 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.
Troskie, Milana, Sonja Matthee, B.L. Penzhorn, Raymond Jansen, & Marinda C. Oosthuizen. (2025). Occurrence of tick-borne haemoparasites in South African rodent species and evidence of Babesia microti-like sequence variants in two Rhabdomys species. International Journal for Parasitology Parasites and Wildlife. 26. 101051–101051.
2.
Jansen, Raymond, et al.. (2025). Tracking the traffickers: Unmasking the illegal trade demographics of Temminck’s pangolin in South Africa (2016–2024). Global Ecology and Conservation. 64. e03924–e03924.
3.
Jansen, Raymond, et al.. (2023). Medicinal ethnobotanical knowledge across urban cultural groups: A case study in a South African township. Ethnobotany Research and Applications. 26. 1 indexed citations
4.
Bourne, Amanda R., Susan J. Cunningham, Raymond Jansen, et al.. (2021). Hot days are associated with short-term adrenocortical responses in a southern African arid-zone passerine bird. Journal of Experimental Biology. 224(10). 26 indexed citations
5.
Junker, Kerstin, Andrea Spickett, O. Davies, Raymond Jansen, & Boris R. Krasnov. (2021). Gastrointestinal nematodes in two galliform birds from South Africa: patterns associated with host sex and age. Parasitology Research. 120(9). 3229–3244. 1 indexed citations
6.
Plessis, Morné Du, Desiré L. Dalton, Raymond Jansen, et al.. (2021). Population and genetic structure of a male-dispersing strepsirrhine, Galago moholi (Primates, Galagidae), from northern South Africa, inferred from mitochondrial DNA. Primates. 62(4). 667–675. 4 indexed citations
7.
8.
Dalton, Desiré L., et al.. (2019). Canine parvovirus detected from a serval (Leptailurus serval) in South Africa. Journal of the South African Veterinary Association. 90(0). e1–e6. 6 indexed citations
9.
Plessis, Morné Du, et al.. (2017). Mitochondrial genomes of African pangolins and insights into evolutionary patterns and phylogeny of the family Manidae. BMC Genomics. 18(1). 746–746. 23 indexed citations
10.
Boakye, Maxwell Kwame, Darren W. Pietersen, Antoinette Kotzé, Desiré L. Dalton, & Raymond Jansen. (2015). Knowledge and Uses of African Pangolins as a Source of Traditional Medicine in Ghana. PLoS ONE. 10(1). e0117199–e0117199. 70 indexed citations
11.
Pieneman, Anton W., R.P.J. de Lange, Raymond Jansen, et al.. (2015). Single-cell analysis of peptide expression and electrophysiology of right parietal neurons involved in male copulation behavior of a simultaneous hermaphrodite. Invertebrate Neuroscience. 15(4). 7–7. 7 indexed citations
12.
Daso, Adegbenro P., et al.. (2015). Mercury concentrations in eggshells of the Southern Ground-Hornbill (Bucorvus leadbeateri) and Wattled Crane (Bugeranus carunculatus) in South Africa. Ecotoxicology and Environmental Safety. 114. 61–66. 10 indexed citations
13.
Boakye, Maxwell Kwame, et al.. (2013). EFFECTS OF BURNING AND GRAZING ON PLANT SPECIES PERCENTAGE COVER AND HABITAT CONDITION IN THE HIGHLAND GRASSLAND OF MPUMALANGA PROVINCE, SOUTH AFRICA. The Journal of Animal and Plant Sciences. 23(2). 603–610. 8 indexed citations
14.
Jansen, Raymond. (2012). Book Review Gamebirds of Southern Africa By Rob Little and Tim Crowe, illustrated by Simon Barlow (2011). Ostrich. 83(1). 4 indexed citations
15.
Jansen, Raymond & Timothy M. Crowe. (2006). Food preferences of Swainson's spurfowl, Pternistis swainsonii, in a diverse agricultural landscape : research article. African Journal of Wildlife Research. 36(2). 113–121. 2 indexed citations
16.
Little, R.M., et al.. (2005). Winter bird assemblages, species richness and relative abundance at a re-vegetated coal mine in the Middelburg district, Mpumalanga province, South Africa : research article. African Journal of Wildlife Research. 35(1). 13–22. 1 indexed citations
17.
Jansen, Raymond, Amanda Little, Timothy M. Crowe, & R. A. Earlé. (1998). Haematozoa of Redwing and Greywing Francolin from three montane grassland habitats in Mpumalanga Province, South Africa. African Journal of Wildlife Research. 28(1). 4–7. 2 indexed citations
18.
Jansen, Raymond. (1996). Notes on the effects of sub-lethal doses of lindane and aldicarb on the reproduction of common quail : short communication. African Journal of Wildlife Research. 26(3). 88–93. 1 indexed citations
19.
Maat, A. Ter, Graham P. Ferguson, Raymond Jansen, & Anton W. Pieneman. (1989). Neural and hormonal control of egg-laying behaviors in the pond snail. The Society for Neuroscience Abstracts. 13(1). 397–397. 1 indexed citations
20.
Maat, A. Ter, W.P.M. Geraerts, Raymond Jansen, & N. P. A. Bos. (1988). Chemically mediated positive feedback generates long-lasting afterdischarge in a molluscan neuroendocrine system. Brain Research. 438(1-2). 77–82. 29 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 Claudio Veloso Breakdown of academic impact, for papers by Tom Reader Breakdown of academic impact, for papers by Uri Shanas Breakdown of academic impact, for papers by Roi Dor Breakdown of academic impact, for papers by Benjamin G. Fanson Breakdown of academic impact, for papers by Wang Zuwang Breakdown of academic impact, for papers by John D. Harder Breakdown of academic impact, for papers by Bruce A. Schulte Breakdown of academic impact, for papers by Emily W. Ruell Breakdown of academic impact, for papers by Giorgio Malacarne
Rankless by CCL
2026