Table 1. Studies used in the meta-analyses and meta-regressions testing the across-study relationship between dominance rank and bib size in male house sparrows.
More information is available in the data files provided (Sánchez-Tójar et al., 2018a).
| Study ID | Reference | Population ID | Primary data? | Number of groups* | Total number of males† | Comments |
|---|---|---|---|---|---|---|
| 1 | Ritchison, 1985 | Kentucky (captivity) |
No | 3 | 35 | |
| 2 | Møller, 1987 | Denmark (wild) |
Yes | 3 | 37 | |
| 3 | Andersson and Åhlund, 1991 | Sweden (captivity) |
No | 10 | 20 | Estimate originally reported as statistically non-significant. |
| 4 | Solberg and Ringsby, 1997 | Norway (captivity) |
Yes | 5 | 44 | |
| 5 | Liker and Barta, 2001 | Hungary (captivity) |
Yes | 1 | 10 | |
| 6 | Gonzalez et al., 2002 | Spain (captivity) |
No | 8 | 41 | |
| 7 | Hein et al., 2003 | Kentucky (wild) |
Yes | 4 | 39 | |
| 8 | Riters et al., 2004 | Wisconsin (captivity) |
No | 4 | 20 | |
| 9 | Lindström et al., 2005 | New Jersey (captivity) |
No | 4 | 28 | Author shared processed data, but group ID was unavailable, so data were not re-analysed. |
| 10 | Bókony et al., 2006 | Hungary (captivity) |
Yes | 2 | 19 | |
| 11 | Buchanan et al., 2010 | Scotland (captivity) |
No | 14 5 |
56 20 |
Groups were tested twice. Post-breeding estimates originally reported as statistically non-significant. |
| 12 | Dolnik and Hoi, 2010 | Austria (captivity) |
No | 4 4 |
31 31 |
Groups were tested twice. Pre-infection estimates originally reported as statistically non-significant. |
| 13 | Rojas Mora et al., 2016 | Switzerland (captivity) |
Yes | 14 | 56 | |
| 14 | Lendvai et al. | Hungary (captivity) |
Yes3 | 4 | 46 | Unpublished data part of: Lendvai et al., 2004; Bókony et al., 2012 |
| 15 | Tóth et al. | Hungary (captivity) |
Yes3 | 3 | 35 | Unpublished data part of: Tóth et al., 2009; Bókony et al., 2012 |
| 16 | Bókony et al. | Hungary (captivity) |
Yes3 | 4 | 26 | Unpublished data part of: Bókony et al., 2010; Bókony et al., 2012 |
| 17 | Sánchez-Tójar et al. | Germany (captivity) |
Yes3 | 4 | 95 | Unpublished study conducted in 2014. |
| 18 | Sánchez-Tójar et al. | Lundy Island (wild) |
Yes3 | 7 | 172 | Unpublished study conducted from 2013 to 2016. |
| 19 | Westneat | Kentucky (captivity) |
Yes3 | 10 | 40 | Unpublished study conducted in 2005. |
*for primary data = yes, groups of birds containing less than four individuals were not included (see Materials and methods).
†Note: since most studies analysed more than one group of birds, the total number of males is different from group size in most cases (see below).
‡Information for the unpublished datasets is available in Appendix 1—table 5.