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Figure 5 | BMC Ecology

Figure 5

From: Living at the edge: biogeographic patterns of habitat segregation conform to speciation by niche expansion in Anopheles gambiae

Figure 5

Detrended Correspondence Analysis of An. gambiae s.s . karyotypes distribution across sampled locations by molecular form. Distribution of karyotypes in ordination space, plotted over the first and second ordination axes. For visualization purposes, the diagram is split in four separate diagrams. Common karyotypes (weight in analysis >1%) are plotted in (A), rarer karyotypes in (B). Continuous eco-geographical variables (EGVs) are passively plotted in (C) and nominal variables in (D). Karyotypes of An. gambiae form M are designed by blue circles, those of the S form by green squares. In (C), climatic EGVs are symbolized by blue arrows, topographic variables by red arrows, land cover variables by black arrows and the molecular form relative abundance by green arrows. In (D), the vegetation classes are in green, and the habitat suitability classes are in red. Note that the scale is not the same across sub-diagrams. Circled karyotypes are those discussed in text.

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