Table 4 Selection rate for the different bibliographic sources
From: Evidence of the impact of noise pollution on biodiversity: a systematic map
Type of bibliographic sources | Bibliographic sources | Exported citations (A) | Included articles after screening stages | ||
|---|---|---|---|---|---|
Systematic map (B) | 2019–2020 group (C) | Total ratio regarding exported citations (B + C)/A (%) | |||
Bibliographic databases | Web of Science Core Collection | 8544 (7859a + 685b) | 860 (48%) | 115 (82%) | 11 |
Scopus | 12045 (11,186a + 859b) | 306 (17%) | 18 (13%) | 3 | |
Total | 20,589 | 1166 (65%) | 133 (9%) | 6 | |
Web-based search engines | Google Scholar | 3403 (3293a + 110b) | 143 (8%) | 4 (3%) | 4 |
BASE | 600 | 25 (1%) | 3 (2%) | 5 | |
CORE | 327 | 50 (3%) | 0 | 15 | |
TOTAL | 4330 | 218 (12%) | 7 (5%) | 5 | |
Call for literature | 83 | 21 (1%) | 1 (< 1%) | 27 | |
Bibliographies of relevant reviews | 4025 | 341 (19%) | 0 | 8 | |
Specialist websites | 9 | 9 (< 1%) | 0 | 100 | |
Other manually included articles | 39 | 39 (2%) | 0 | 100 | |
TOTAL | 29,075 | 1794 | 141 | 7 | |