Researchers studying butterfly populations in Jamaica found that during the dry season, food plants become scarce and butterfly populations decline sharply, regardless of whether the population was large or small at the start of the season. This is an example of:

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Question

Researchers studying butterfly populations in Jamaica found that during the dry season, food plants become scarce and butterfly populations decline sharply, regardless of whether the population was large or small at the start of the season. This is an example of:

Accepted Answer

A density-independent limiting factor — Award 1 mark for a density-independent limiting factor. The key phrase is 'regardless of whether the population was large or small'—drought and seasonal resource scarcity affect populations independently of their density. A is incorrect because density-dependent factors have greater effect on larger populations. C is incorrect because carrying capacity is the maximum population size, not a limiting factor itself. D is incorrect because the population is declining, not growing.

Answer

Carrying capacity

Answer

Exponential growth

Answer

A density-independent limiting factor

Answer

A density-dependent limiting factor

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