Table 2. Pearson residual analysis for plant species-area relationship.
| Island | Area (km2) | Number of species (S) | Expected S | Pearson residual | P |
|---|---|---|---|---|---|
| Tiburón | 1,223 | 349 | 294 | 3.25 | 0.0006 |
| Ángel de la Guarda | 936 | 217 | 271 | −3.30 | 0.0005 |
| San Esteban | 41 | 114 | 105 | 0.86 | 0.1951 |
| San Lorenzo (San Lorenzo Sur) | 33 | 85 | 99 | −1.36 | 0.0866 |
| Las Ánimas (San Lorenzo Norte) | 4.26 | 45 | 53 | −0.96 | 0.1692 |
| Nolasco | 3.45 | 58 | 50 | 1.18 | 0.1192 |
| Mártir | 2.67 | 29 | 46 | −3.24 | 0.0006 |
| Alcatraz | 1.44 | 54 | 38 | 2.57 | 0.0051 |
| Partida Norte | 1.36 | 18 | 37 | −3.18 | 0.0007 |
| Dátil | 1.25 | 101 | 37 | 10.67 | 0.0000 |
| Salsipuedes | 1.16 | 18 | 36 | −2.96 | 0.0015 |
| Rasa | 0.68 | 14 | 30 | −2.97 | 0.0015 |
| Patos | 0.45 | 14 | 27 | −2.47 | 0.0067 |
| Cholludo | 0.2 | 31 | 21 | 2.19 | 0.0142 |
Note:
Pearson residual scores and probabilities for islands with significantly more or fewer species than expected by chance are shown in boldface.