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Landscape factors that shape a slow and persistent aquatic invasion: brown trout in Newfoundland 1883–2010

Aim  We investigated watershed‐scale abiotic environmental factors associated with population establishment of one of the ‘world’s 100 worst alien invaders’ on a temperate Atlantic island. Within the context of the conservation implications, we aimed to quantify (1) the early history and demographics (numbers and origins) of human‐mediated brown trout (Salmo trutta) introductions, (2) the current distribution of established populations, and (3) the watershed‐scale environmental factors that may resist or facilitate trout establishment.