객관식
Which of the following best describes humans in terms of r/K selection theory?
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50. Population Ecology
r/K Selection
객관식
Which type of survivorship curve would you expect K-selected organisms to follow & why?
A
Type I, because many resources are allocated to the survival of few offspring.
B
Type II, because the probability of death remains constant even if offspring are well cared for.
C
Type III, because many offspring are produced in K-selection.
D
Could be anywhere on the spectrum of survivorship curves, as it’s too difficult to predict.
검증된 단계별 안내1
Understand the concept of K-selected organisms: K-selected species are characterized by having fewer offspring, with a higher investment in each. They tend to have longer lifespans and provide significant parental care.
Learn about survivorship curves: There are three types of survivorship curves - Type I, Type II, and Type III. Type I curves show low mortality at early and middle ages, with higher mortality at older ages. Type II curves depict a constant mortality rate throughout life. Type III curves show high mortality at early ages, with survivors living longer.
Analyze the characteristics of Type I survivorship curve: Type I is typical for species that invest heavily in the care of few offspring, ensuring their survival to adulthood. This curve is common in K-selected species.
Evaluate the options given in the problem: Type I is the most likely curve for K-selected organisms because they allocate resources to the survival of few offspring, which aligns with the characteristics of Type I survivorship.
Conclude why Type I is the expected curve: Given the traits of K-selected species, such as high parental investment and fewer offspring, Type I survivorship curve is the most appropriate, as it reflects the survival strategy of these organisms.
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