AP®︎ Environmental Science: Topic 3.2 Flashcards

Master key terms and definitions for Topic 3.2 of AP Environmental Science – K-Selected r-Selected Species to help you prep for quizzes and the AP exam.

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Term

K-Selected Species (K-Selection)

Definition

Species that tend to be large, mature late, live long, produce few offspring, invest substantial energy and parental care in each, and reproduce repeatedly in stable, highly competitive environments; their low biotic potential makes recovery slow and increases vulnerability to invasive species

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K-Selected Species (K-Selection)
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Species that tend to be large, mature late, live long, produce few offspring, invest substantial energy and parental care in each, and reproduce repeatedly in stable, highly competitive environments; their low biotic potential makes recovery slow and increases vulnerability to invasive species

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r-Selected Species (r-Selection)
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Species that typically mature early, produce many offspring with little parental investment, have short life spans, and increase rapidly in disturbed or unpredictable, low-competition environments; most invasive species display these traits

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Biotic Potential
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The maximum reproductive rate of a population under ideal conditions

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r–K Selection Continuum
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The spectrum of reproductive strategies between r- and K-selected endpoints; species may combine traits, occupy intermediate positions, or change strategies with conditions

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