Table 2 Parameter estimates from the linear models analyzing the responses of ant variables to landscape and local variables.
From: Urban tropical forest islets as hotspots of ants in general and invasive ants in particular
Overall ant abundance | Native ant abundance | Invasive ant abundance | Non-YCA invasive ant abundance | A. gracilipes abundance | Rarefied richness | |||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
F | P | F | P | F | P | F | P | F | P | F | P | |
Urbanization level | 2.3 | 0.12 | 5.07 | 0.01 | 0.3 | 0.7 | 0.67 | 0.5 | 12.3 | 0.0002 | 1.7 | 0.16 |
√ built-up area | 0.03 | 0.8 | 0.4 | 0.5 | 0.04 | 0.8 | 0.01 | 0.9 | 0.9 | 0.9 | 0.004 | 0.24 |
Log (elevation) | 0.0005 | 0.99 | 0.3 | 0.6 | 0.6 | 0.4 | 0.3 | 0.6 | 0.6 | 0.6 | 0.22 | 0.36 |
Log (SG area) | 0.005 | 0.94 | 0.07 | 0.8 | 0.16 | 0.7 | 0.003 | 0.95 | 0.7 | 0.5 | 0.99 | 0.76 |
√NDVI | 0.11 | 0.7 | 0.3 | 0.6 | 1.44 | 0.2 | 0.08 | 0.7 | 4.7 | 0.04 | 2.72 | 0.42 |
R2adj | 0.14 | 0.4 | − 0.06 | 0.12 | 0.82 | 0.21 | ||||||
F (6,23) | 1.8 | 3.7 | 0.77 | 1.6 | 23.5 | 2.3 | ||||||
P | 0.14 | 0.009 | 0.6 | 0.18 | < 0.0005 | 0.06 | ||||||
