Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 3 of 3 for “"nonindigenous species"”.
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Domestic 'laker' ships as a potential pathway of nonindigenous species in the Great Lakes
… ballast is considered a low risk vector of nonindigenous species introductions within the Great Lakes - St. Lawrence River, and is unregulated. I examined establishment risk posed by taxa contained in domestic ballast, biological and environmental similarities between St. Lawrence River and …
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Temporal trends in stream-fish distributions, and species traits as invasiveness drivers in New River (USA) tributaries
… strategies require knowledge of which introduced species are present and of spatiotemporal trends in the distribution of natives and invaders. In Chapter 2 we developed a quantitative framework to identify spreaders and decliners and estimate invasion chronologies based on a historical fish …
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Interbasin Transfer of Invasive Crayfish via Bait-Bucket Dumping
… rusticus) is a highly invasive and damaging species that has established high population densities in many North American lakes and rivers. Rusty crayfish are native to the Ohio River drainage but have been spreading to surrounding temperate lakes for the last 40+ years. Recently, rusty …