Olof Hellgren

6.6k citations

64 papers · 4.6k indexed · 2 hit papers · h-index 34

Impact in

Parasitology top 0.05%
- Bird parasitology and diseases
- Vector-borne infectious diseases
Ecology, Evolution, Behavior and Systematics top 0.5%
- Study of Mite Species
- Animal Behavior and Reproduction

Papers in

Parasitology 49
- Bird parasitology and diseases 48
- Vector-borne infectious diseases 38
Microbiology 7
- Antimicrobial Peptides and Activities 5

Co-authors: Staffan Bensch Javier Pérez‐Tris Jonas Waldenström Gediminas Valkiūnas Asta Križanauskienė Vaidas Palinauskas Dennis Hasselquist Tatjana A. Iezhova
Journals: Journal of Parasitology (8 papers)Molecular Ecology (5 papers)Parasitology (5 papers)Journal of Evolutionary Biology (5 papers)Malaria Journal (4 papers)
Partner nations: Sweden Lithuania United States

In The Last Decade

Olof Hellgren

63 papers receiving 4.6k citations

Hit Papers

align trajectories log scale

MalAvi: a public database of malaria parasites and related haemosporidians in avian hosts based on mitochondrial cytochrome b lineages 2009 · 795 citations

What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if any of the following hold:

it has ≥500 total citations;
it reaches ≥1.5× the top-1% citation threshold for papers in the same subfield and year (the threshold is the minimum needed to enter the top 1%, not the average within it);
it reaches the top citation threshold in at least one of its specific research topics.

2009 Molecular Ecology Resources
2004 Journal of Parasitology

Peers

Countries citing papers authored by Olof Hellgren

Since Specialization

Citations

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

Fields of papers citing papers by Olof Hellgren

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network

The 25 scholars most cited alongside Olof Hellgren, linked wherever they have co-authored with each other. Click a name or a connecting line to browse the papers they share.

Border = papers with Olof Hellgren Line = papers co-authored together Olof Hellgren links everyone, so they are left out of the graph.

All Works

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20 of 20 papers shown

#	Work
1	Genomic variation in Plasmodium relictum (lineage SGS1) and its implications for avian malaria infection outcomes: insights from experimental infections and genome-wide analysis Malaria Journal ·mark-russinovich, 吴江, Vaidas Palinauskas, Olof Hellgren	2024	1
2	Immune gene expression in the mosquito vector Culex quinquefasciatus during an avian malaria infection Molecular Ecology ·Luz García‐Longoria, Dag Ahrén, Arnaud Berthomieu, mark-russinovich, Ana Rivero, Olof Hellgren	2022	6
3	Genomic sequence capture of Plasmodium relictum in experimentally infected birds Parasites & Vectors ·Vincenzo A. Ellis, mark-russinovich, Arif Çiloğlu, مصطفی الحرایری, Xi Huang, Abdullah Incı, Staffan Bensch, Olof Hellgren, Vaidas Palinauskas	2022	6
4	Shifts in gene expression variability in the blood-stage of Plasmodium relictum Gene ·mark-russinovich, Dag Ahrén, Gediminas Valkiūnas, Vaidas Palinauskas, Olof Hellgren	2021	1
5	Major shifts in gut microbiota during development and its relationship to growth in ostriches Molecular Ecology ·Elin Videvall, Se Jin Song, Hanna M. Bensch, Maria Strandh, Anel Engelbrecht, Salman Anjomrouz, Olof Hellgren, Adriaan Olivier, S.W.P. Cloete, Rob Knight, Charlie K. Cornwallis	2019	50
6	The transcriptome of the avian malaria parasite Plasmodium ashfordi displays host‐specific gene expression Molecular Ecology ·Elin Videvall, Charlie K. Cornwallis, Dag Ahrén, Vaidas Palinauskas, Gediminas Valkiūnas, Olof Hellgren	2017	40
7	De novo synthesis of thiamine (vitamin B₁) is the ancestral state in Plasmodium parasites – evidence from avian haemosporidians Parasitology ·Olof Hellgren, Staffan Bensch, Elin Videvall	2017	2
8	The Genome ofHaemoproteus tartakovskyiand Its Relationship to Human Malaria Parasites Genome Biology and Evolution ·Staffan Bensch, Björn Canbäck, Jeremy D. DeBarry, Tomas Johansson, Olof Hellgren, Jessica C. Kissinger, Vaidas Palinauskas, Elin Videvall, Gediminas Valkiūnas	2016	54
9	How can we determine the molecular clock of malaria parasites? Trends in Parasitology ·Staffan Bensch, Olof Hellgren, Asta Križanauskienė, Vaidas Palinauskas, Gediminas Valkiūnas, Diana C. Outlaw, Robert E. Ricklefs	2013	37
10	Genomic Resources Notes accepted 1 June 2013–31 July 2013 Molecular Ecology Resources ·Staffan Bensch, David W. Coltman, Corey S. Davis, Olof Hellgren, Tomas Johansson, René M. Malenfant, S. S. Moore, Vaidas Palinauskas, Gediminas Valkiūnas	2013	4
11	Locus‐specific protocol for nine different innate immune genes (antimicrobial peptides: β‐defensins) across passerine bird species reveals within‐species coding variation and a case of trans‐species polymorphisms Molecular Ecology Resources ·Olof Hellgren, Ben C. Sheldon	2011	35
12	MIGRATORY BEHAVIOR OF BIRDS AFFECTS THEIR COEVOLUTIONARY RELATIONSHIP WITH BLOOD PARASITES Evolution ·Tania Jenkins, Gavin H. Thomas, Olof Hellgren, Ian P. F. Owens	2011	57
13	The genetic structure of Borrelia afzelii varies with geographic but not ecological sampling scale Journal of Evolutionary Biology ·Olof Hellgren, M. Andersson, Lars Råberg	2010	39
14	In vitro tests of natural allelic variation of innate immune genes (avian β‐defensins) reveal functional differences in microbial inhibition Journal of Evolutionary Biology ·Olof Hellgren, Ben C. Sheldon, Angus Buckling	2010	25
15	Evolution of a cluster of innate immune genes (β-defensins) along the ancestral lines of chicken and zebra finch PubMed ·Olof Hellgren, Robert Ekblom	2010	48
16	Parallelism and historical contingency during rapid ecotype divergence in an isopod Journal of Evolutionary Biology ·Fabrice Eroukhmanoff, Anders Hargeby, Luo Dun, Olof Hellgren, Staffan Bensch, Erik Svensson	2009	45
17	A jack‐of‐all‐trades and still a master of some: prevalence and host range in avian malaria and related blood parasites Ecology ·Olof Hellgren, Javier Pérez‐Tris, Staffan Bensch	2009	161
18	Within-Host Speciation of Malaria Parasites PLoS ONE ·Javier Pérez‐Tris, Olof Hellgren, Asta Križanauskienė, Jonas Waldenström, Jean Secondi, Camille Bonneaud, Jon Fjeldså, Dennis Hasselquist, Staffan Bensch	2007	99
19	Detecting shifts of transmission areas in avian blood parasites — a phylogenetic approach Molecular Ecology ·Olof Hellgren, Jonas Waldenström, Javier Pérez‐Tris, Khairunnisa Binti Othman, B Heitger, Dennis Hasselquist, Asta Križanauskienė, Ulf Ottosson, Staffan Bensch	2007	181
20	Nested CytochromeBPolymerase Chain Reaction Diagnostics Underestimate Mixed Infections of Avian Blood Haemosporidian Parasites: Microscopy is Still Essential Journal of Parasitology ·Gediminas Valkiūnas, Staffan Bensch, Tatjana A. Iezhova, Asta Križanauskienė, Olof Hellgren, Casimir V. Bolshakov	2006	198

About Olof Hellgren

Olof Hellgren is a scholar working on Parasitology, Microbiology, Ecology, Evolution, Behavior and Systematics, Ecology and Infectious Diseases, having authored 64 papers that have together received 4.6k indexed citations. Recurring topics across this work include Bird parasitology and diseases (48 papers), Vector-borne infectious diseases (38 papers), Avian ecology and behavior (12 papers), Viral Infections and Vectors (11 papers), Malaria Research and Control (10 papers), Animal Behavior and Reproduction (9 papers), Study of Mite Species (7 papers) and Antimicrobial Peptides and Activities (5 papers). The work is most often cited by research in Parasitology (3.8k citations), Ecology, Evolution, Behavior and Systematics (1.4k citations), Ecology (1.8k citations), Infectious Diseases (1.3k citations) and Microbiology (187 citations). Olof Hellgren has collaborated with scholars based in Sweden, Lithuania and United States. Frequent co-authors include Staffan Bensch, Javier Pérez‐Tris, Jonas Waldenström, Gediminas Valkiūnas, Asta Križanauskienė, Vaidas Palinauskas, Dennis Hasselquist, Tatjana A. Iezhova, Johan Bäckman and Per G. P. Ericson. Their work appears in journals such as Journal of Parasitology, Molecular Ecology, Parasitology, Journal of Evolutionary Biology and Malaria Journal.

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