This map shows the geographic impact of L.B. Sparrius'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 L.B. Sparrius with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites L.B. Sparrius more than expected).
This network shows the impact of papers produced by L.B. Sparrius. 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 L.B. Sparrius. The network helps show where L.B. Sparrius may publish in the future.
Co-authorship network of co-authors of L.B. Sparrius
This figure shows the co-authorship network connecting the top 25 collaborators of L.B. Sparrius.
A scholar is included among the top collaborators of L.B. Sparrius 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 L.B. Sparrius. L.B. Sparrius is excluded from
the visualization to improve readability, since they are connected to all nodes in the network.
Aptroot, André, L.B. Sparrius, & Pablo Alvarado. (2018). Aquacidia, a new genus to accommodate a group of skiophilous temperate Bacidia species that belong in the Pilocarpaceae (lichenized ascomycetes). Gorteria. 40(1). 11–14.8 indexed citations
Sparrius, L.B. & A. van Strien. (2014). Het berekenen van jaarlijkse trends van planten op basis van verspreidingsgegevens. Gorteria. 37(1). 31–40.2 indexed citations
5.
Sparrius, L.B., John A. Elix, & Alan W Archer. (2010). Austrographa, a new genus in the Roccellaceae with three species from Australia. ANU Open Research (Australian National University). 67. 23–28.3 indexed citations
6.
Sparrius, L.B., et al.. (2009). Herstelbeheer van vergrast stuifzand op het Deelensche Zand (Hoge Veluwe). UvA-DARE (University of Amsterdam).1 indexed citations
7.
Aptroot, André, M. R. D. Seaward, L.B. Sparrius, & Harrie J. M. Sipman. (2009). Biodiversity and ecology of lichens : liber amicorum Harrie Sipman.8 indexed citations
Aptroot, André & L.B. Sparrius. (2004). De korstmossen van het najaarsweekend 2003 in oostelijk Noord-Brabant. 66(1). 40–43.1 indexed citations
11.
Aptroot, André, et al.. (2003). Nieuwe korstmossen en licheenparasieten in Nederland, met aanvullingen op de checklist. 63(1). 32–37.2 indexed citations
Sparrius, L.B., et al.. (2002). Nieuwe en interessante korstmossen en korstmosparasieten in Nederland met aanvulling en wijzigingen op de checklist. 59(1). 26–46.5 indexed citations
15.
Sparrius, L.B., et al.. (2002). THE LICHEN FLORA OF THE BOULONNAIS (FRANCE, PAS-DE-CALAIS). Open Repository and Bibliography (University of Liège). 135.7 indexed citations
16.
Aptroot, André, et al.. (2002). New Taiwan macrolichens. Mycotaxon. 84. 281–292.13 indexed citations
Aptroot, André, C. M. van Herk, & L.B. Sparrius. (2000). Lichenen van het najaarsweekend op Terschelling en enkele kerken in noordwest Friesland. 53(1). 46–52.1 indexed citations
19.
Sparrius, L.B., et al.. (2000). Korstmossen van Gelderland en aangrenzend Flevoland en van soortenrijke kerkmuren in de IJsselvallei. 53(1). 33–41.1 indexed citations
20.
Aptroot, André, C. M. van Herk, L.B. Sparrius, Pieter van den Boom, & H.F. van Dobben. (1999). Checklist van de Nederlandse lichenen en lichenicole fungi. 50(1). 3–64.19 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.