Institutional rankings in environment and ecology

Data provided by Thomson Scientific from its Essential Science Indicators, 1 January 1997–31 October 2007

June 12, 2008


RankInstitutionPapers CitationsCitations per paper
1Stanford University, California1,020 21,318 20.90
2 University of California, Santa Barbara, California82316,099 19.56
3 Princeton University, New Jersey55510,832 19.55
4 Smithsonian Institution, Washington DC93917,964 19.13
5 University of California, Santa Cruz, California583 10,965 18.81
6 University of Edinburgh, Edinburgh663 12,411 18.72
7 University of Sheffield, Sheffield789 14,357 18.20
8 University of Oxford, Oxford699,12,655 18.10
9 University of Alaska, Fairbanks and other campuses, Alaska657 11,706 17.82
10 Max Planck Society, Various locations, Germany1,008 17,861 17.72
11 Michigan State University, Michigan, Michigan1,12419,481 17.33
12 Duke University, North Carolina1,13619,560 17.22
13 Umeå University, Umeå, Sweden64110,979 17.13
14 Imperial College London, London98616,790 17.03
15 Harvard University, Massachusetts1,13419,172 16.91
16 University of Minnesota, Minnesota1,48824,620 16.55
17 University of Maryland, Maryland1,15718,605 16.08
18 Arizona State University, Arizona68710,8 15.76
19 University of Wisconsin, Wisconsin1,80128,372 15.75
20 Swiss Fed Inst Environmental Science, Duebendorf, Switzerland69710,974 15.74

The data above were extracted from Thomson Scientific’s Essential Science Indicators database. This database, currently covering the period January 1998 to February 2008, surveys only journal articles (original research reports and review articles) indexed by Thomson Scientific. Articles are assigned to a category based on the journals in which they were published and Thomson Scientific’s journal-to-category field definition scheme. Both articles tabulated and citation counts to those articles are for the period indicated. Naturally, institutions publishing large numbers of papers have a greater likelihood of collecting more citations than scientists publishing fewer papers. This ranking is by citations per paper (impact) among those institutions that have collected 10,000 or more citations in environment and ecology journals. For papers with multiple institutional addresses each institution receives full, not fractional, citation credit. Essential Science Indicators lists institutions ranked in the top 1 per cent for a field over a given period, based on total citations. For the current version, 461 institutions are listed in the field of environment and ecology, meaning that a total of 46,100 institutions were reviewed to obtain these results. Of the 461, 61 institutions collected 10,000 or more citations in environment and ecology. US institutions take the top five places in this ranking, and a total of 13 in this list of the top 20 by citations per paper. UK institutions rank 6th, 7th, 8th and 14th. Germany, Sweden and Switzerland are represented by one institution each.

For more information on Thomson Scientific’s Essential Science Indicators, see http://scientific.thomson.com/products/esi. For more information on Thomson Scientific, see http://scientific.thomson.com.

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