Difference Between r Strategist and K Strategist

The key difference between r strategist and K strategist is that the r strategist lives in unstable and unpredictable environments while the K strategist lives in more stable environment. Because of this environmental conditions, the r strategists produce many offspring while the K strategists produce few offsprings.

How do K strategists and R strategists differ?

The two evolutionary "strategies" are termed r-selection, for those species that produce many "cheap" offspring and live in unstable environments and K-selection for those species that produce few "expensive" offspring and live in stable environments.

What is the difference between R and K selected species?

r-selected babies grow rapidly, and tend to be found in less competitive, low quality environments. ... K-selected species produce offspring that each have a higher probability of survival to maturity.

What is K strategist?

K-selected species, also called K-strategist, species whose populations fluctuate at or near the carrying capacity (K) of the environment in which they reside. ... Such species produce a few large young instead of many small young.

What is an R strategist species?

R-selected species, also called r-strategist, species whose populations are governed by their biotic potential (maximum reproductive capacity, r). ... Wilson; K-selected species—that is, species whose population sizes fluctuate at or near their carrying capacity (K)—make up the second strategy.

Are humans K or R-selected?

Elephants, humans, and bison are all k-selected species. ... These species often have short life expectancies, produce as many offspring as they can, and invest very low amounts of parental care. R-selected species can include mosquitos, mice, and bacteria.

Are Lions R or K-selected?

Common examples of k-strategists species include humans, lions and whales.

Are turtles R or K-selected?

Plants such as dandelions are another good example of an r-selected species. ... Sea turtles are a good example of a species that fits somewhere in the middle. The produce many eggs and do not care for their offspring once the eggs have been laid, but turtles live very long lives.

Are dogs K or R strategists?

Indeed, one can think of a given organism as an "r-strategist" or a "K-strategist" only relative to some other organism; thus statements about r and K selection are invariably comparative. Cats and dogs are r-selected compared to humans, but K-selected compared to mice and rats.

Why do K-selected species live longer?

K-strategists, on the other hand occupy more stable environments. They are larger in size and have longer life expectancies. They are stronger or are better protected and generally are more energy efficient. They produce, during their life spans, fewer progeny, but place a greater investment in each.

Are cats K-strategists?

Animals such as fish and frogs that lay hundreds of eggs at a time are R-strategists, animals such as humans, puffins and the majority of other organisms are K-strategists. The image shown shows a cat, an example of a organisms that produces few long living organisms.

Why are endangered species k selected?

Endangered species are likely to be K-selected species because they produce fewer offspring and breed less frequently. They also have a later reproductive age and a low population growth rate.

How do R and K selection influence survivorship curves?

How do survivorship curves relate to r selection and K selection in animals. Ans: Populations described as r selection have traits that contribute to a high population growth rate. ... K selection maximizes the chance of surviving in an environment where the number of individuals is near the carrying capacity.

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