Introduction of a new species of fish

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Classify each situation as density-dependent or density-independent, and explain your reasoning.

(a) A drought decreases the water level of a lake, thus decreasing its carrying capacity.

(b) Lynx prey on snowshoe hares. An increase in the snowshoe hare population causes an increase in the lynx population.

(c) A forest fire destroys a large amount of habitat in a provincial park.

(d) Due to the introduction of a new species of fish, a lake becomes crowded and some species do not survive.

(e) The use of pesticides thins the shells of peregrine falcon eggs and dramatically reduces their population size.

(f) Increased water temperature causes many aquatic organisms to die.

Reference no: EM132734622

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