Agricultural Science: three bibliometric systems compared Sub title 201703, Ellen Fest & Hugo Besemer

General The expected citedness of an article depends very much on subject In bibliometric studies subject = journal category Most categorization systems depend on choices who made them There are subject specific (economy, chemistry) categorizations but most are generic

What we did Compare three systems, based on Web of Science - Essential Science Indicators Web of Science - WOS categories Scopus - ASJC (All Science Journal Classification) We looked at 14 University Departments 9 Institutes (or their business units) Groups that were: very specific (compared to ESI); low coverage in WOS; Performing particularly well or particularly not so well….

The systems compared Web of Science Scopus Number of articles 9124596 10770432 Number of Journals 12393 24015 Number of Categories 22 (ESI) 251 (Incites) 331 Avg categories per Jounal 1 (ESI) 1.6 (Incites) 2.1

What we expected Scopus would cover better than Web of Science Specific groups would perform better with more specific categories Web of Science categories are more precise Based on Wang, Qi, and Ludo Waltman. "Large-scale analysis of the accuracy of the journal classification systems of Web of Science and Scopus." Journal of Informetrics 10.2 (2016): 347-364. http://dx.doi.org/10.1016/j.joi.2016.02.003

Coverage (University)

Coverage (Institutes)

Performance: the overall picture

How do groups with low WOS coverage perform? Management studies

MST Altmetrics Supply Chain-Wide Consequences of Transaction Risks and Their Contractual Solutions: Towards an Extended Transaction Cost Economics Framework https://www.altmetric.com/details/1880868 University-industry collaboration in turkish SMEs https://www.altmetric.com/details/1421267 Patient hospital choice for hip replacement: empirical evidence from the Netherlands https://www.altmetric.com/details/1858555

How do very specific groups perform? Fisheries

Categories for fisheries Staff Publications InCites SciVal Research Field (ESI) Share RI* Web of Science Categories CNCI* Subject Area Subcategory FWCI* Agricultural Sciences 50% 0.97 AGRICULTURAL ECONOMICS & POLICY 17% 1.47 Agricultural and Biological Sciences Food Science 13% 2.30 Economics & Business 18% 1.42 FOOD SCIENCE & TECHNOLOGY 14% 1.05 Business, Management and Accounting Business and International Management 8% 1.03 Engineering 1.70 ECONOMICS 1.06 Economics, Econometrics and Finance Economics and Econometrics 7% 1.50 Social Sciences, General 1.62 AGRICULTURE, MULTIDISCIPLINARY 1.07 Computer Science Computer Science Applications 6% 0.39 4% 1.18 MANAGEMENT 1.20 Management Information Systems 0.46 Environment/Ecology 1% 1.48 BUSINESS 5% 1.80 Computer Networks and Communications 0.27 Immunology 1.49 ENGINEERING, INDUSTRIAL 1.37 Agronomy and Crop Science 1.12 Plant & Animal Science 0.95 OPERATIONS RESEARCH & MANAGEMENT SCIENCE 1.40 General Business, Management and Accounting 3% 1.11 COMPUTER SCIENCE, INTERDISCIPLINARY APPLICATIONS 0.87 Strategy and Management 2.24 PLANNING & DEVELOPMENT 2.55 Decision Sciences Management Science and Operations Research 2.46 Other 27% 41%

Fisheries Altmetrics Red light represses the photophysiology of the scleractinian coral Stylophora pistillata https://www.altmetric.com/details/2204276 Cell turnover and detritus production in marine sponges from tropical and temperate benthic ecosystems https://www.altmetric.com/details/4897480 Oxygen and Heterotrophy Affect Calcification of the Scleractinian Coral Galaxea fascicularis https://www.altmetric.com/details/1179630

Forestry, a group that perform well in the present system (WOS / ESI)

And what categories do they end up? Staff Publications InCites SciVal Research Field (ESI) Share RI* Web of Science Categories CNCI* Subject Area Subcategory FWCI* Environment/Ecology 50% 2.71 ECOLOGY 36% 2.11 Agricultural and Biological Sciences Ecology, Evolution, Behavior and Systematics 17% 2.80 Plant & Animal Science 42% 3.00 FORESTRY 24% 1.67 Plant Science 14% 2.37 Agricultural Sciences 4% 1.85 PLANT SCIENCES 18% 2.79 Environmental Science Ecology 13% 2.81 Geosciences 2% 1.20 ENVIRONMENTAL SCIENCES 8% 3.17 Forestry 11% 1.81 Social Sciences, General 0.42 BIODIVERSITY CONSERVATION 5.58 Nature and Landscape Conservation 6% 2.69 Engineering 0.4% 0.52 GEOGRAPHY, PHYSICAL 2.55 Biochemistry, Genetics and Molecular Biology Physiology 5% 2.13 AGRONOMY 3% 2.06 Management, Monitoring, Policy and Law 2.48 GEOSCIENCES, MULTIDISCIPLINARY 1.72 Medicine General Medicine 1.54 METEOROLOGY & ATMOSPHERIC SCIENCES 1% 4.81 Global and Planetary Change 7.10 ZOOLOGY 1.13 General Environmental Science 7.67 Other 10% 22% * RI = Relative Impact * CNCI = Category Normalized Citation Impact * FWCI = Field Weighted Citation Impact, 2011-2014, all output types

Forest ecology Altmetrics Key role of symbiotic dinitrogen fixation in tropical forest secondary succession. https://www.altmetric.com/details/1751737 Sustaining conservation values in selectively logged tropical forests: The attained and the attainable https://www.altmetric.com/details/685506 Limitations to sustainable frankincense production: blocked regeneration, high adult mortality and declining populations https://www.altmetric.com/details/502114

And yours? Mine: Do we want agricultural journal categories? Do we want open citation data? And yours?