2018 tables: Institutions - Earth & environmental sciences - academic

The 2018 tables are based on Nature Index data from 1 January 2017 to 31 December 2017.

Table criteria

# Institution Share 2016 Share 2017 Count 2017 Change in Adjusted Share 2016-2017*
1 University of Cape Town (UCT), South Africa 6.32 2.91 14 -51.9%
2 University of the Witwatersrand, Johannesburg (Wits University), South Africa 1.12 2.51 13 135.9%
3 University of Johannesburg (UJ), South Africa 1.63 1.79 10 14.7%
4 Minia University, Egypt 0.79 3 N/A
5 Addis Ababa University (AAU), Ethiopia 0.69 0.64 4 -2.6%
6 Rhodes University (RU), South Africa 0.51 0.64 2 33.1%
7 North-West University (NWU), South Africa 0.50 0.55 2 14.3%
8 Makerere University, Uganda 0.50 3 N/A
9 Cheikh Anta Diop University (UCAD), Senegal 0.46 3 N/A
10 University of Badji Mokhtar-Annaba (UBMA), Algeria 0.42 2 N/A
11 University of Benghazi (UoB), Libya 0.39 2 N/A
12 University of Antananarivo, Madagascar 0.08 0.38 2 378.5%
13 University of Béjaïa, Algeria 0.34 2 N/A
14 University of La Réunion, Reunion 0.60 0.33 9 -42.0%
15 University of Kinshasa (UNIKIN), Congo 0.29 1 N/A
16 Marien Ngouabi University (UMNG), Congo 0.29 1 N/A
17 University of Namibia (UNAM), Namibia 0.27 2 N/A
18 Alexandria University, Egypt 0.08 0.25 1 214.0%
18 Ardhi University, Tanzania 0.25 1 N/A
19 Université Ibn Zohr, Morocco 0.23 1 N/A
20 Hawassa University (HU), Ethiopia 0.10 0.23 2 135.5%
21 University of Carthage (UCAR), Tunisia 0.07 0.22 1 225.7%
21 University of Ilorin (Unilorin), Nigeria 0.22 1 N/A
22 University of Science and Technology Houari Boumedienne (USTHB), Algeria 0.20 1 N/A
22 University of Douala, Cameroon 0.20 1 N/A
23 Agostinho Neto University (UAN), Angola 0.18 1 N/A
24 African Institute for Mathematical Sciences (AIMS), South Africa 0.17 1 N/A
25 Stellenbosch University (SU), South Africa 0.19 0.16 4 -13.7%
26 Mansoura University, Egypt 0.14 1 N/A
26 Mekelle University, Ethiopia 0.14 1 N/A
27 University of KwaZulu-Natal (UKZN), South Africa 0.28 0.14 2 -47.3%
28 Assiut University, Egypt 0.17 0.13 1 -21.5%
28 Botswana International University of Science and Technology (BIUST), Botswana 0.13 1 N/A
28 University of Ziguinchor (UASZ), Senegal 0.13 1 N/A
29 Tshwane University of Technology (TUT), South Africa 0.12 2 N/A
30 Abdou Moumouni University (UAM), Niger 0.11 1 N/A
31 Abdelmalek Essaâdi University (UAE), Morocco 0.17 0.11 2 -32.7%
32 Beni-Suef University (BSU), Egypt 0.10 0.10 1 4.7%
32 Ashesi University College, Ghana 0.10 1 N/A
33 University of Pretoria (UP), South Africa 0.91 0.09 2 -89.2%
34 Cadi Ayyad University (UCA), Morocco 0.08 1 N/A
35 Mohammed VI Polytechnic University, Morocco 0.07 1 N/A
36 Sokoine University of Agriculture (SUA), Tanzania 0.07 1 N/A
37 Namibia University of Science and Technology (NUST), Namibia 0.06 1 N/A
38 University of Lay Adventists of Kigali (UNILAK), Rwanda 0.06 1 N/A
39 Université Félix Houphouët-Boigny (UFHB), Ivory Coast 0.10 0.05 1 -52.4%
40 University of Ouagadougou, Burkina Faso 0.04 1 N/A
41 University of Souk Ahras, Algeria 0.04 1 N/A
42 University of Buea (UB), Cameroon 0.02 1 N/A
43 Nelson Mandela University (NMU), South Africa 0.46 0.02 1 -95.8%
43 University of Abomey-Calavi (UAC), Benin 0.62 0.02 1 -96.9%
44 Wollo University, Ethiopia 0.02 1 N/A

Footnote

Each year, the Nature Index publishes tables based on counts of high-quality research outputs in the previous calendar year. Users please note:

  1. The data behind the tables are based on a relatively small proportion of total research papers, they cover the natural sciences only and outputs are non-normalized (that is, they don’t reflect the size of the country or institution, or its overall research output).
  2. The Nature Index is one indicator of institutional research performance. The metrics of Count and Share used to order Nature Index listings are based on an institution’s or country’s publication output in 82 natural-science journals, selected on reputation by an independent panel of leading scientists in their fields.
  3. Nature Index recognizes that many other factors must be taken into account when considering research quality and institutional performance; Nature Index metrics alone should not be used to assess institutions or individuals.
  4. Nature Index data and methods are transparent and available under a creative commons licence at natureindex.com.

The Nature Index database undergoes regular updating, corrections, adjustment of institutional hierarchies, and removal of retracted papers and thus the live website can differ from the frozen annual tables.

*The change in adjusted Share accounts for the small annual variation in the total number of articles in Nature Index journals. Share values have been adjusted to 2020 levels to calculate the percentage change. For more information on the adjustment, please see the Adjusted metric explainer.