What characterizes a population described by the K-selected species model?

What characterizes a population described by the K-selected species model?

• A. High number of offspring with low survival rates
• B. Low number of offspring with high survival rates
• C. Rapid growth and high reproductive rates
• D. Constant population sizes over time

Answer: (B)

The K-selected species model is characterized by organisms that produce a low number of offspring, but these offspring tend to have a high survival rate. This strategy is typically adopted in stable environments where resources are limited, and competition for those resources is fierce. In these scenarios, K-selected species invest more energy and resources into raising and nurturing their young, improving their chances of reaching maturity. As a result, these species often have longer life spans, greater parental care, and lower reproductive rates compared to r-selected species, which focus on producing many offspring with little investment in individual survival. This approach allows K-selected species to thrive when population sizes are near the carrying capacity of the environment, as the population dynamics are stable and populations do not experience rapid fluctuations.

The K-selected species model is characterized by organisms that produce a low number of offspring, but these offspring tend to have a high survival rate. This strategy is typically adopted in stable environments where resources are limited, and competition for those resources is fierce.

In these scenarios, K-selected species invest more energy and resources into raising and nurturing their young, improving their chances of reaching maturity. As a result, these species often have longer life spans, greater parental care, and lower reproductive rates compared to r-selected species, which focus on producing many offspring with little investment in individual survival.

This approach allows K-selected species to thrive when population sizes are near the carrying capacity of the environment, as the population dynamics are stable and populations do not experience rapid fluctuations.