Are introduced species better dispersers than native species? A global comparative study of seed dispersal distance.

ABSTRACT: We provide the first global test of the idea that introduced species have greater seed dispersal distances than do native species, using data for 51 introduced and 360 native species from the global literature. Counter to our expectations, there was no significant difference in mean or maximum dispersal distance between introduced and native species. Next, we asked whether differences in dispersal distance might have been obscured by differences in seed mass, plant height and dispersal syndrome, all traits that affect dispersal distance and which can differ between native and introduced species. When we included all three variables in the model, there was no clear difference in dispersal distance between introduced and native species. These results remained consistent when we performed ana

SUBMITTER: Flores-Moreno H 

PROVIDER: S-EPMC3688602 | biostudies-literature | 2013

REPOSITORIES: biostudies-literature