Fig 1.
Native and invasive localities of P. solenopsis used in current modeling.
Red dot represent native localities and blue dot represent invasive localities. The base map was created with Natural Earth Dataset (http://www.naturalearthdata.com/).
Fig 2.
Test and training AUC value of ten-fold cross-models.
Blue represent traning AUC and green represent test AUC.
Table 1.
Relative contribution of each environmental variables to MaxEnt model.
Fig 3.
Global potential distribution map of P.solenopsis based on current climate variables.
Gray = unsuitable habitat area; Blue = low habitat suitability area; Green = moderate habitat suirability area; Red = highly habitat suitability area. The base map was created with Natural Earth Dataset (http://www.naturalearthdata.com/).
Table 2.
Area with suitability under different climate scenarios.
Fig 4.
Response curves showing the relationships between the probability of presence of P. solenopsis and seven bioclimatic variables.
Values shown are average over 10 replicate runs: blue margins show ±SD calculated over 10 replicates.
Fig 5.
Future species distribution models under climate change scenarios RCP 2.6–2050.
Gray = unsuitable habitat area; Blue = low habitat suitability area; Green = moderate habitat suirability area; Red = highly habitat suitability area. The base map was created with Natural Earth Dataset (http://www.naturalearthdata.com/).
Fig 6.
Future species distribution models under climate change scenarios RCP 2.6–2070.
Gray = unsuitable habitat area; Blue = low habitat suitability area; Green = moderate habitat suirability area; Red = highly habitat suitability area. The base map was created with Natural Earth Dataset (http://www.naturalearthdata.com/).
Fig 7.
Future species distribution models under climate change scenarios RCP 8.5–2050.
Gray = unsuitable habitat area; Blue = low habitat suitability area; Green = moderate habitat suirability area; Red = highly habitat suitability area. The base map was created with Natural Earth Dataset (http://www.naturalearthdata.com/).
Fig 8.
Future species distribution models under climate change scenarios RCP 8.5–2070.
Gray = unsuitable habitat area; Blue = low habitat suitability area; Green = moderate habitat suirability area; Red = highly habitat suitability area. The base map was created with Natural Earth Dataset (http://www.naturalearthdata.com/).
Fig 9.
Comparison of future potential suitable habitat areas for P. solenopsi by MaxEnt for time frames on different climate scenarios.
Blue = low habitat suitability area; Green = moderate habitat suirability area; Red = highly habitat suitability area.
Fig 10.
Native and invasive niches of P. solenopsis in different regions; multivariate climatic space was calculated using PCA-env method.
PC1 and PC2 represent the first two axes of the principal competent analysis (PCA). The green and red shadings represent density of species occurrences in different regions; blue represents overlap. Solid and dashed lines show 100% and 50% of the available (background) environment. The red arrows show how the center of the climatic niche for P. solenopsis (solid) and background extent (dotted) has moved between two ranges.
Table 3.
Result of niche overlap analysis.