Top journals in ecology and environmental sciences

Data provided by Thomson Reuters from its Essential Science Indicators, 1 January 1998-31 October 2008

January 29, 2009

 JournalPapersCitationsCitations per paper
1 Annual Review of Ecology, Evolution & Systematics131 15,293 116.74
2 Nature395 41,042 103.90
3 Science397 34,568 87.07
4 Trends in Ecology and Evolution7 39,356 54.13
5 Ecological Monographs309 11,310 36.60
6 Proceedings of the National Academy of Sciences of the USA491 17,088 34.80
7 Systematic Biology416 12,194 29.31
8 Ecology3,161 80,313 25.41
9 Ecology Letters1,133 26,3 23.24
10The American Naturalist1,618 36,694 22.68
11Conservation Biology1,729 36,209 20.94
12Environmental Health Perspectives3,374 70,023 20.75
13Molecular Ecology3,345 69,5 20.71
14Ecological Applications1,711 34,899 20.40
15Journal of Ecology1,081 20,969 19.40
16Global Change Biology1,508 ,995 18.56
17Journal of Applied Ecology1,162 21,032 18.10
18Oecologia3,219 56,010 17.40
19Ecosystems705 12,199 17.30
20Environmental Science & Technology10,006 171,816 17.17
Based on citations per paper among journals with 10,000 or more citations. The data above were extracted from Thomson Reuters’ Essential Science Indicators database. This database, currently covering the period January 1998 to October 2008, surveys only journal articles (original research reports and review articles) indexed by Thomson Reuters. Articles are assigned to a category based on the journals in which they were published and Thomson Reuters’ journal-to-category field-definition scheme. Both articles tabulated and citation counts for those articles are for the period indicated. Here, our ranking of journals in ecology and environmental sciences is made by citations per paper to reveal the weighted impact. Essential Science Indicators lists journals ranked in the top 50 per cent for a field over a given period, based on total citations. In ecology and environmental sciences, 168 journals are listed, meaning 336 journals in the field were surveyed. Of these 168 journals, 54 received 10,000 or more citations during the period. This ranking should be recognised as distinctly different from Thomson Reuters’ impact-factor rankings, which are presented in the Journal Citation Reports issued each year. The impact factor is calculated as citations in year three to a journal’s contents in years one and two, divided by the number of so-called citable items (regular articles and reviews) in years one and two. Thus, the above ranking reveals longer-term impact (citations per paper). The data for the multidisciplinary journals listed – Science, Nature and the Proceedings of the National Academy of Sciences of the USA – take into account only those articles that have been classified by Thomson Reuters as ecology and environmental sciences papers. For more information on Thomson Reuters’ Essential Science Indicators, see http://scientific.thomsonreuters.com/products/esi.

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