Top British institutions in environment and ecology

UK rank	World rank	Institution	Papers	Citations	Citations per paper
1	9	University of Oxford	869	20,038	23.06
2	17	University of York	441	9,728	22.06
3	24	University of East Anglia	640	13,388	20.92
4	30	University of Sheffield	848	17,317	20.42
5	32	University of Lancaster	638	12,884	20.19
6	35	University of Edinburgh	733	14,697	20.05
7	37	University College London	417	8,249	19.78
8	50	Rothamsted Research	353	6,387	18.09
9	55	British Antarctic Survey	364	6,457	17.74
10	57	Imperial College London	1,066	18,628	17.47
11	67	University of Cambridge	748	12,754	17.05
12	82	University of Leeds	665	10,978	16.51
13	90	University of Bristol	384	6,173	16.08
14	98	Centre for Ecology and Hydrology	625	9,712	15.54
15	102	University of Reading	553	8,509	15.39
16	103	University of Wales	400	6,150	15.38
17	111	Macaulay Land Use Research Institute	350	5,283	15.09
18	121	Newcastle University	497	7,310	14.71
19	122	University of Birmingham	480	6,961	14.50
20	126	University of Stirling	322	4,6	14.37
21	132	University of Aberdeen	796	11,289	14.18
22	143	University of Exeter	372	5,083	13.66
23	147	Cardiff University	348	4,738	13.61
24	151	University of Southampton	395	5,306	13.43
25	159	University of Liverpool	357	4,664	13.06

The data above were extracted from the Essential Science Indicators database of Thomson Reuters. This database, currently covering the period January 2000 to February 2010, 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 the Thomson Reuters journal-to-category field-definition scheme. Both articles tabulated and citation counts to those articles are for the period indicated.

This ranking is by citations per paper (impact) for British institutions that published 300 or more papers in the field of environmental sciences and ecology during the period. 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, 529 institutions are listed in the field of environment and ecology, meaning that a total of 52,900 institutions were surveyed to obtain the results. Of the 529 institutions, 303 published 300 or more papers. The ranking by citation impact seeks to reveal heavy hitters based on per paper influence, not mere output.

Also appearing is the world rank by impact for each of these British institutions. Readers should recognise that environment and ecology represents a mix of fields including but not limited to biodiversity, climate change as it affects the environment, environmental toxicology, fishery studies, hydrology and water resources, plant sciences and forestry studies, soil science and zoology.

For more information, see http://science.thomsonreuters.com/products/esi