Robert C. Ullrich

652 total citations
13 papers, 548 citations indexed

About

Robert C. Ullrich is a scholar working on Plant Science, Pharmacology and Ecology, Evolution, Behavior and Systematics. According to data from OpenAlex, Robert C. Ullrich has authored 13 papers receiving a total of 548 indexed citations (citations by other indexed papers that have themselves been cited), including 8 papers in Plant Science, 7 papers in Pharmacology and 4 papers in Ecology, Evolution, Behavior and Systematics. Recurrent topics in Robert C. Ullrich's work include Fungal Biology and Applications (7 papers), Mycorrhizal Fungi and Plant Interactions (7 papers) and Plant Pathogens and Fungal Diseases (4 papers). Robert C. Ullrich is often cited by papers focused on Fungal Biology and Applications (7 papers), Mycorrhizal Fungi and Plant Interactions (7 papers) and Plant Pathogens and Fungal Diseases (4 papers). Robert C. Ullrich collaborates with scholars based in United States, Germany and Slovakia. Robert C. Ullrich's co-authors include James B. Anderson, Kari Korhonen, Philipp Norton, Constance Scharff, Thomas E. Chase, Charles P. Novotny, Th. Dobzhansky, Grazia Isaya, Steven Obrebski and George R. Carmody and has published in prestigious journals such as Animal Behaviour, Genomics and Mycologia.

In The Last Decade

Robert C. Ullrich

13 papers receiving 481 citations

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
Robert C. Ullrich United States	9	414	242	226	172	100	13	548
G. N. Bistis United States	14	467 1.1×	265 1.1×	237 1.0×	199 1.2×	437 4.4×	39	792
Rachel A. Koch United States	11	275 0.7×	107 0.4×	165 0.7×	113 0.7×	83 0.8×	25	358
Jiao Qin China	11	200 0.5×	71 0.3×	68 0.3×	177 1.0×	131 1.3×	29	353
Kazufumi Nishi Japan	10	357 0.9×	64 0.3×	216 1.0×	60 0.3×	143 1.4×	27	447
James E. Jurgenson United States	14	584 1.4×	54 0.2×	350 1.5×	53 0.3×	291 2.9×	20	771
Markus C. Baier Germany	9	349 0.8×	45 0.2×	11 0.0×	132 0.8×	70 0.7×	9	487
Fernando A. Fernández United States	10	523 1.3×	53 0.2×	504 2.2×	212 1.2×	247 2.5×	22	631
Kevin K. Fuller United States	9	273 0.7×	125 0.5×	66 0.3×	53 0.3×	312 3.1×	11	574
Samad Ashrafi Germany	11	254 0.6×	69 0.3×	107 0.5×	30 0.2×	56 0.6×	29	351
Li‐Hua Zhu China	13	457 1.1×	24 0.1×	228 1.0×	71 0.4×	270 2.7×	70	627

Countries citing papers authored by Robert C. Ullrich

Since Specialization

Citations

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

Fields of papers citing papers by Robert C. Ullrich

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Robert C. Ullrich. 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 Robert C. Ullrich. The network helps show where Robert C. Ullrich may publish in the future.

Co-authorship network of co-authors of Robert C. Ullrich

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

All Works

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13 of 13 papers shown

Ullrich, Robert C., Moritz Mittelbach, & Katja Liebal. (2019). Disseminating intention: How a term has spread within cross-species comparative science.. Journal of comparative psychology. 134(1). 11–26. 3 indexed citations

Ullrich, Robert C., Moritz Mittelbach, & Katja Liebal. (2017). Scala naturae: the impact of historical values on current ‘evolution of language’ discourse. 3(1). 1–12. 2 indexed citations

Ullrich, Robert C., Philipp Norton, & Constance Scharff. (2016). Waltzing Taeniopygia: integration of courtship song and dance in the domesticated Australian zebra finch. Animal Behaviour. 112. 285–300. 45 indexed citations

Isaya, Grazia, et al.. (1995). Mammalian Mitochondrial Intermediate Peptidase: Structure/Function Analysis of a New Homologue from Schizophyllum commune and Relationship to Thimet Oligopeptidases. Genomics. 28(3). 450–461. 22 indexed citations

Burke, John M., et al.. (1988). Nucleotide base sequence of the mitochondrial COIII gene of Schizophyllum commune. Current Genetics. 14(4). 401–403. 9 indexed citations

Chase, Thomas E., Robert C. Ullrich, & Kari Korhonen. (1985). Homothallic Isolates of Heterobasidion Annosum. Mycologia. 77(6). 975–977. 2 indexed citations

Chase, Thomas E. & Robert C. Ullrich. (1985). Fruiting and Genetic Analysis of Heterobasidion Annosum. Mycologia. 77(3). 464–471. 12 indexed citations

Chase, Thomas E. & Robert C. Ullrich. (1985). Fruiting and Genetic Analysis of Heterobasidion annosum. Mycologia. 77(3). 464–464. 8 indexed citations

Anderson, James B., Kari Korhonen, & Robert C. Ullrich. (1980). Relationships between European and North American biological species ofArmillaria mellea. Experimental Mycology. 4(1). 78–86. 112 indexed citations

10.

Anderson, James B. & Robert C. Ullrich. (1979). Biological Species of Armillaria mellea in North America. Mycologia. 71(2). 402–402. 196 indexed citations

11.

Anderson, James B. & Robert C. Ullrich. (1979). Biological Species ofArmillaria Melleain North America. Mycologia. 71(2). 402–414. 78 indexed citations

12.

Ullrich, Robert C.. (1977). Natural Distribution of Incompatibility Factors in Basidiomycetous Fungi. Mycologia. 69(4). 714–719. 26 indexed citations

13.

Carmody, George R., et al.. (1962). Mating Preferences and Sexual Isolation Within and Between the Incipient Species of Drosophila Paulistorum. The American Midland Naturalist. 68(1). 67–67. 33 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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