Daniel M. O’Brien

73 total papers · 1.6k total citations
36 papers, 522 citations indexed

About

Daniel M. O’Brien is a scholar working on Soil Science, Agronomy and Crop Science and Ecology, Evolution, Behavior and Systematics. According to data from OpenAlex, Daniel M. O’Brien has authored 36 papers receiving a total of 522 indexed citations (citations by other indexed papers that have themselves been cited), including 9 papers in Soil Science, 8 papers in Agronomy and Crop Science and 8 papers in Ecology, Evolution, Behavior and Systematics. Recurrent topics in Daniel M. O’Brien’s work include Irrigation Practices and Water Management (7 papers), Crop Yield and Soil Fertility (5 papers) and Amphibian and Reptile Biology (5 papers). Daniel M. O’Brien is often cited by papers focused on Irrigation Practices and Water Management (7 papers), Crop Yield and Soil Fertility (5 papers) and Amphibian and Reptile Biology (5 papers). Daniel M. O’Brien collaborates with scholars based in United States, Australia and Italy. Daniel M. O’Brien's co-authors include Eric A. Hanushek, John F. Kain, Steven G. Rivkin, Danny H. Rogers, Freddie R. Lamm, G. A. Clark, Brian Olson, L.W. Murray, Robert M. Aiken and Marvin L. Hayenga and has published in prestigious journals such as Evolution, Molecular Ecology and Animal Behaviour.

Co-authorship network of co-authors of Daniel M. O’Brien

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

Daniel M. O’Brien

33 papers receiving 440 citations

Fields of papers citing papers by Daniel M. O’Brien

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Daniel M. O’Brien. 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 Daniel M. O’Brien. The network helps show where Daniel M. O’Brien may publish in the future.

Countries citing papers authored by Daniel M. O’Brien

Since Specialization
Citations

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

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