Spatial Distribution and Dispersal Patterns of Central North American Freshwater Crayfish (Decapoda: Cambaridae) with Emphasis on Implications of Glacial Refugia

<div>Species loading plot on the first two principle components from the PCA based on species abundances. PC I (20% of variance) represents a gradient of species associated with unglaciated sites (negative loading) and species associated with glaciated sites (positive loading). PC II (15% of variance) represents a gradient of<i> Orconectes virilis</i> to<i> Orconectes immunis</i> dominance.<i> C</i>. sp. =<i> Cambarus</i> spp. A cf.<i> diogenes</i>.</div>

International Journal of Biodiversity

fig3

Figure 3

Figure 3: Spatial Distribution and Dispersal Patterns of Central North American Freshwater Crayfish (Decapoda: Cambaridae) with Emphasis on Implications of Glacial Refugia 

Figure 3 | Spatial Distribution and Dispersal Patterns of Central North American Freshwater Crayfish (Decapoda: Cambaridae) with Emphasis on Implications of Glacial Refugia 