Jorma Sorjonen

443 total citations
15 papers, 381 citations indexed

About

Jorma Sorjonen is a scholar working on Ecology, Evolution, Behavior and Systematics, Developmental Biology and Ecology. According to data from OpenAlex, Jorma Sorjonen has authored 15 papers receiving a total of 381 indexed citations (citations by other indexed papers that have themselves been cited), including 12 papers in Ecology, Evolution, Behavior and Systematics, 7 papers in Developmental Biology and 6 papers in Ecology. Recurrent topics in Jorma Sorjonen's work include Animal Behavior and Reproduction (9 papers), Plant and animal studies (7 papers) and Animal Vocal Communication and Behavior (7 papers). Jorma Sorjonen is often cited by papers focused on Animal Behavior and Reproduction (9 papers), Plant and animal studies (7 papers) and Animal Vocal Communication and Behavior (7 papers). Jorma Sorjonen collaborates with scholars based in Finland. Jorma Sorjonen's co-authors include Juha Merilä, Hannu Pöysä, Jorma Tahvanainen, Seppo Neuvonen, Timo J. Hokkanen, Pekka Niemelä, Jürgen Wiehn, Erkki Korpimäki, Keith L. Bildstein and Jarkko Rutila and has published in prestigious journals such as Animal Behaviour, Oikos and Ecography.

In The Last Decade

Jorma Sorjonen

15 papers receiving 319 citations

Peers

Jorma Sorjonen
Diane L. H. Neudorf Canada
Henri Ouellet Canada
Heiner Flinks Germany
Chris Corben United States
Kamal Islam United States
David M. Niles United States
L. LaReesa Wolfenbarger United States
Beata Matysioková Czechia
Lars von Haartman Finland
Esperanza S. Ferrer Spain
Diane L. H. Neudorf Canada
Jorma Sorjonen
Citations per year, relative to Jorma Sorjonen Jorma Sorjonen (= 1×) peers Diane L. H. Neudorf

Countries citing papers authored by Jorma Sorjonen

Since Specialization
Citations

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

Fields of papers citing papers by Jorma Sorjonen

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Jorma Sorjonen

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

All Works

15 of 15 papers shown
1.
Pöysä, Hannu, et al.. (2014). Co-parasites preferentially lay with kin and in safe neighbourhoods: experimental evidence from goldeneye ducks. Animal Behaviour. 91. 111–118. 9 indexed citations
2.
Pöysä, Hannu, et al.. (2010). Response of parasitically laying goldeneyes to experimental nest predation. Animal Behaviour. 80(5). 881–886. 10 indexed citations
3.
Pöysä, Hannu, et al.. (2009). Reliability of egg morphology to detect conspecific brood parasitism in goldeneyes Bucephala clangula examined using protein fingerprinting. Journal of Avian Biology. 40(4). 453–456. 15 indexed citations
4.
Sorjonen, Jorma & Juha Merilä. (2000). Response of male Bluethroats Luscinia svecica to song playback: evidence of territorial function of song and song flights. Ornis Fennica. 77(1). 43–47. 9 indexed citations
5.
Pöysä, Hannu & Jorma Sorjonen. (2000). Recolonization of breeding waterfowl communities by the whooper swan: vacant niches available. Ecography. 23(3). 342–348. 19 indexed citations
6.
Wiehn, Jürgen, Erkki Korpimäki, Keith L. Bildstein, & Jorma Sorjonen. (1997). Mate Choice and Reproductive Success in the American Kestrel: a Role for Blood Parasites?. Ethology. 103(4). 304–317. 37 indexed citations
7.
Kunnasranta, Mervi, Heikki Hyvärinen, & Jorma Sorjonen. (1996). UNDERWATER VOCALIZATIONS OF LADOGA RINGED SEALS (PHOCA HISPIDA LADOGENSIS NORDQ.) IN SUMMERTIME. Marine Mammal Science. 12(4). 611–618. 10 indexed citations
8.
Merilä, Juha & Jorma Sorjonen. (1994). Seasonal and Diurnal Patterns of Singing and Song-Flight Activity in Bluethroats (Luscinia Svecica). 111(3). 556–562. 31 indexed citations
9.
Sorjonen, Jorma. (1987). Temporal and Spatial Differences in Traditions and Repertoires in the Song of the Thrush Nightingale (Luscinia Luscinia). Behaviour. 102(3-4). 196–211. 27 indexed citations
10.
11.
Sorjonen, Jorma. (1986). Song Structure and Singing Strategies in the Genus Luscinia in Different Habitats and Geographical Areas. Behaviour. 98(1-4). 274–285. 40 indexed citations
12.
Sorjonen, Jorma. (1986). Factors Affecting the Structure of Song and the Singing Behaviour of Some Northern European Passerine Birds. Behaviour. 98(1-4). 286–304. 49 indexed citations
13.
14.
Niemelä, Pekka, Jorma Tahvanainen, Jorma Sorjonen, Timo J. Hokkanen, & Seppo Neuvonen. (1982). The Influence of Host Plant Growth Form and Phenology on the Life Strategies of Finnish Macrolepidopterous Larvae. Oikos. 39(2). 164–164. 52 indexed citations
15.
Sorjonen, Jorma. (1980). Selection of Breeding Habitat by the Thrush Nightingale Luscinia luscinia and Its Position in Bird Communities. Ornis Scandinavica. 11(2). 125–125. 6 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