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Figure 8 | BMC Evolutionary Biology

Figure 8

From: Selectivity by host plants affects the distribution of arbuscular mycorrhizal fungi: evidence from ITS rDNA sequence metadata

Figure 8

Ecosystem, climate, continent and biogeographical realm influence directly or indirectly the distribution of plants and AMF. (a) A structural equation model showing the standardized total effects of ecosystemic, climatic, continental and biogeographical factors on plant distribution and the standardized total effects of ecosystemic, climatic, continental and biogeographical factors and host plants on AMF distribution. (b) Standardized direct and indirect effects of factors mentioned above on plant and AMF distribution. The numbers above the arrows represented path coefficients, and the width of arrows indicated the strength of the causal effects.

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