Data from: Limited role of aquatic habitat complexity in mitigating the ecological impact of invasive bullfrogs on native amphibians

In this study, we investigated how site-level habitat characteristics shape
the ecological impact of non-native American bullfrogs (Lithobates catesbeianus) on native amphibian communities. We surveyed 134 standing water bodies in Belgium using environmental DNA (eDNA) quantitative barcoding and metabarcoding to assess bullfrog density and native
amphibian community structure, respectively, and recorded 25 habitat characteristics. We investigated (i) environmental niche overlap between native amphibians and bullfrogs, (ii) species-habitat associations, and (iii) the interactive effect of aquatic habitat complexity, based on aquatic macrophyte coverage, and bullfrog density on native amphibians.

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