When Pacific Salmon Migrate to Freshwater Streams to Spawn, They

question 136

Multiple Choice

When Pacific salmon migrate to freshwater streams to spawn, they bring with them marine nutrients.These nutrients fertilize the freshwater habitats when the salmon dies, improving the habitat for juvenile salmon that hatch several months later.Thus, the density of the migrating salmon affects the ability of the new generation to survive.This is an example of the

• A) Allee effect.
• B) fecundity effect.
• C) survivorship effect.
• D) exponential effect.
• E) carrying capacity effect.

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