What is K selected species in biology?

K-selected species possess relatively stable populations fluctuating near the carrying capacity of the environment. These species are characterized by having only a few offspring but investing high amounts of parental care. Elephants, humans, and bison are all k-selected species.

What does K stand for in RK selection theory?

The young tend to be precocial (rapidly maturing) and develop early independence. K-selection: On the other extreme are species that are highly K-selected. K refers to the carrying capacity, and means that the babies are entering a competitive world, in a population at or near its carrying capacity.

What are 5 characteristics of K selected species?

K-Selected Traits

• Slow development.
• Low reproductive rate.
• Late reproductive age.
• Large body size.
• Multiple reproductive cycles.
• Long lifespan.
• Strong competitive ability.
• Low offspring mortality.

What are K selected examples?

Examples of K-selected species include birds, larger mammals (such as elephants, horses, and primates), and larger plants.

Why is K selection important in a stable environment?

K-selection. In stable or predictable environments, K -selection predominates as the ability to compete successfully for limited resources is crucial and populations of K -selected organisms typically are very constant in number and close to the maximum that the environment can bear (unlike r -selected populations,…

Which is the best description of are / K selection theory?

r / K selection theory. In ecology, r/K selection theory relates to the selection of combinations of traits in an organism that trade off between quantity and quality of offspring. The focus on either an increased quantity of offspring at the expense of individual parental investment of r-strategists, or on a reduced quantity…

What’s the change in the R / K selection paradigm?

A life-history paradigm has replaced the r / K selection paradigm but continues to incorporate many of its important themes. A litter of mice with their mother. The reproduction of mice follows an r -selection strategy, with many offspring, short gestation, less parental care, and a short time until sexual maturity.

Why does r-selection predominate in unstable environments?

In unstable or unpredictable environments, r -selection predominates due to the ability to reproduce rapidly. There is little advantage in adaptations that permit successful competition with other organisms, because the environment is likely to change again.