This map shows the geographic impact of S. Dirksen'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 S. Dirksen with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites S. Dirksen more than expected).
This network shows the impact of papers produced by S. Dirksen. 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 S. Dirksen. The network helps show where S. Dirksen may publish in the future.
Co-authorship network of co-authors of S. Dirksen
This figure shows the co-authorship network connecting the top 25 collaborators of S. Dirksen.
A scholar is included among the top collaborators of S. Dirksen 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 S. Dirksen. S. Dirksen is excluded from
the visualization to improve readability, since they are connected to all nodes in the network.
Beekman, Jan, Mennobart R. van Eerden, & S. Dirksen. (2013). Bewick's Swan Cygnus columbianus bewickii utilising the changing resource of Potamogeton pectinatus during autumn in the Netherlands. Wildfowl (Wildfowl & Wetlands Trust). 238–248.7 indexed citations
4.
Dirksen, S. & Jan Beekman. (2013). Population size, breeding success and distribution of Bewick's Swans Cygnus columbianus bewickii wintering in Europe in 1986-87. Wildfowl (Wildfowl & Wetlands Trust). 120–124.3 indexed citations
5.
Dirksen, S., et al.. (2013). Bewick’s Swans Cygnus columbianus bewickii in the Netherlands: numbers, distribution and food choice during the wintering season. Wildfowl. 228–237.5 indexed citations
6.
Fijn, Ruben, et al.. (2012). Habitat use, disturbance and collision risks for Bewick. Wildfowl (Wildfowl & Wetlands Trust). 62(62). 97–116.9 indexed citations
7.
Fijn, Ruben, et al.. (2012). Habitat use, disturbance and collision risks for Bewick's Swans Cygnus columbianus bewickii wintering near a wind farm in the Netherlands.10 indexed citations
Dirksen, S., Arie L. Spaans, & J. van der Winden. (2007). Collision risks for diving ducks at semi-offshore wind farms in freshwater lakes: a case study.2 indexed citations
Dirksen, S., et al.. (1998). Nachtelijke vliegpatronen en vlieghoogtes van duikeenden in het IJsselmeergebied. Socio-Environmental Systems Modeling. 71(2). 57–68.5 indexed citations
12.
Noordhuis, Ruurd, et al.. (1997). The trophic role of cormorants Phalacrocorax carbo in freshwater ecosystems in the Netherlands during the non-breeding period. Ekologia Polska. 45(1). 249–262.6 indexed citations
13.
Dirksen, S., et al.. (1997). Improved breeding success of cormorants Phalacrocorax carbo in a severely contaminated area in the Netherlands by a shift in food composition: a progress report. Ekologia Polska. 45(1). 201–206.1 indexed citations
14.
Ens, Bruno J., et al.. (1996). Seasonal changes in size selection and intake rate of oystercatchers Haematopus ostralegus feeding on the bivalves Mytilus edulis and Cerastoderma edule. Ardea. 159–176.16 indexed citations
Zwarts, Leo & S. Dirksen. (1990). DIGESTIVE BOTTLENECK LIMITS THE INCREASE IN FOOD-INTAKE OF WHIMBRELS PREPARING FOR SPRING MIGRATION FROM THE BANC-DARGUIN, MAURITANIA. Ardea. 78. 257–278.70 indexed citations
20.
Beekman, Jan, et al.. (1985). Population size and breeding success of Bewick's Swans wintering in Europe in 1983-4. Wildfowl (Wildfowl & Wetlands Trust). 36(36). 5–12.4 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.