Fluctuations in abundance over 100 years in four separate populations A, B, C, a

Question

Fluctuations in abundance over 100 years in four separate populations A, B, C, and D (species unknown). Use this figure to answer questions 1-4. Which of the following populations is most likely primarily density regulated? A B Only C Only D C & D Which of the following population trajectories most likely has R0 lower than 1? A B C D C & D For population C, which of the following is true? The population initially grows nearly exponentially The population reaches an upper limit in abundance Variation in the environment (weather, etc.) seems to influence population abundance All of the above

Explanation / Answer

1 D 2 C 3 A

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