Research Article
Quantifying Effects of Spatial Heterogeneity of Farmlands on Bird Species Richness by Means of Similarity Index Pairwise
Table 4
Descriptive elements of agricultural mosaic along the gradient of spatial heterogeneity of farmland in Central Italy.
| Environmental parameter | FSH category | F | df | P value | 1 | 2 | 3 | 4 | Total |
| Altitude (m) | 122.7 ± 77.2 | 183.3 ± 156.2 | 298.8 ± 168.2 | 382.5 ± 129.8 | 292.4 ± 168.8 | 10.1 | 3 | 0.000*** | Terrain slope (mode) | Low | Low | Low | Low-medium | Low | — | — | — | Roads (mode) | Paved | Paved | Paved | Paved | Paved | — | — | — | Powerlines (mean) | 3.1 ± 2.5 | 2.9 ± 2.0 | 2.5 ± 1.6 | 3.8 ± 2.8 | 3.1 ± 2.3 | 1.5 | 3 | 0.221 | Crop diversity (mean) | 0.632 ± 0.3 | 0.554 ± 0.3 | 0.533 ± 0.4 | 0.489 ± 0.4 | 0.530 ± 0.3 | 0.3 | 3 | 0.790 |
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Significance codes:
***P < 0.001,
**P < 0.01,
*P < 0.05,
‘P < 0.1.
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