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The mechanisms underlying successful invasions by a competitively subordinate species are poorly understood. In Japan, nonnative brown trout Salmo trutta L. have successfully invaded a number of streams that contain native masu salmon Oncorhynchus masou Brevoort, even though young of the year (YOY) brown trout are thought to be competitively subordinate to YOY masu salmon because of their smaller...
The mechanisms by which nonnative species establish populations can be classified into two broad categories: they usurp the niches of native species through interspecific competition, or they avoid this intense interspecific competition by making use of minimal niche overlap with the native species. In this study, we considered how a nonnative salmonid species, the rainbow trout Oncorhynchus mykiss...
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