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Invasive plant distributions recapitulate patterns found in native plant assemblages in a heterogeneous landscape

E. Mavrodiev,J. Gómez,A. Laktionov,S. Robinson

Published 2015 in Ecosphere

ABSTRACT

Diverse alien and native floras of the same region provide a good opportunity to test the influence of environmental variables in structuring of plant assemblages because both can be considered as a replicates of the assembly process under identical conditions but with different dispersal capabilities. We performed this test within 11 floristically diverse areas forming the strictly defined Valley of River Volga (SE Russia), for the first time treating native and non-native floras as independent replicates of the assembly process. We used a popular biogeographical method, parsimony analysis of endemicity (PAE) to estimate both non-random components and the relationships of plant assemblages. We compared patterns of relationships obtained among plant assemblages based on (1) over 1000 presumably native, and (2) over 250 presumably non-native species of the same assemblage and found that the PAE cladograms based on (1) presumably native and (2) presumably non-native species of the same assemblage were topol...

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