Birds Inv Threatened

Excel list of bird species threatened by IA

Mammals Inv threatened

Excel list of mammal species threatened by IA

reptiles_invasive_sumCRENVU

raster of reptiles threatened by IA

Mammals Inv threatened

raster of mammal species threatened by IA

Amphibians_invasive_sumCRENVU

raster of amphibian species threatened by IA

Reptiles Inv threatened

Excel list of reptile species threatened by IA

The grey squirrel’s niche in climatic space, calculated with the PCA - env method.

<p>The surfaces in the plots represent the climatic niche along the first two axis of the PCA in native (left) and invasive (right) range. Grey shading indicates the density of species occurrences. Solid and dashed lines represent, respectively, 100% and 50% of the available environment. Dashed circle indicates the niche center and arrows show its movement in climatic space between native and invasive range.</p

Occurrences of <i>S. carolinensis</i> in native range (a) and invasive range (b), used to calibrate models.

<p>Occurrences of <i>S. carolinensis</i> in native range (a) and invasive range (b), used to calibrate models.</p

Results of niche shift analysis.

<p>“*” indicates methods calibrated in native range and projected in invasive range. <i>D</i> metric quantifies niche overlap (Schoener, 1970). Arrows specify directions of niche similarity test (<i>see text</i>).</p

Predicted distribution of the grey squirrel for North America, United Kingdom, Ireland and Piedmont, as obtained from the Native Range (a), Native+Invasive Range (b), and Reciprocal Models (c).

<p>Predicted distribution of the grey squirrel for North America, United Kingdom, Ireland and Piedmont, as obtained from the Native Range (a), Native+Invasive Range (b), and Reciprocal Models (c).</p