Table 4.
The best model of GLM regression of genetic diversity (I, Shannon’s information index) related to landscape features. Landscape variables included percentage of cropland areas (cropland), percentage of vegetable areas (vegetable), percentage of orchard areas (orchard), percentage of grassland areas (grassland), and the percentage of woodland areas (woodland) at each scalea
| Scale | Model | Adjusted r 2 | p value | AIC |
|---|---|---|---|---|
| 0.5 km | −0.0021 × Orchard | 0.279 | 0.083 | −15.399 |
| 1 km | −0.0042 × Vegetable − 0.0033 × Orchard b + 0.036 × Grassland b | 0.674 | 0.035 | −21.576 |
| 2 km | 0.060 × Grasslandb | 0.353 | 0.054 | −15.399 |
| 3 km | −0.0028 × Orchard | 0.105 | 0.206 | −13.458 |
a
Bold indicates the best overall model. Intercept of models are omitted.
b
Significance of variables is indicated as follows: p < 0.05.