Database | Searched field | No of hits | Date |
---|---|---|---|
ISI web of science | Topic | 3249 | 2013-02-26 |
Georef and geobase | Subject/title/abstract | 2249 | 2013-02-26 |
Scopus | Title, abstract and keywords | 2842 | 2013-02-26 |
Agricola | Keyword anywhere | 524 | 2013-02-26 |
ASFA | All fields (no full text) | 1933a | 2013-02-27 |
Academic search | Title/abstract/subject/keyword | 1131 | 2013-02-27 |
Biological abstracts | Keywords | 401 | 2013-02-27 |
Wiley online library | Abstract or title or keywords | 174 | 2013-02-27 |
Directory of open access journals | All fields | 84a | 2013-03-05 |
ScienceDirect | Abstract or title or keywords | 876 | 2013-07-02 |