The terms r-selection and K-selection are used by ecologists to describe the growth and reproduction strategies of organisms. r-selected species have a high growth rate but low survivability (“cheap” offspring) K-selected species have a low growth rate but high survivability (“expensive” offspring)
“r” stands for “rate” {growth rate}, r strategists have a high r value and a low K value. They grow fast but most die. “K” stands for Kapazitätsgrenzen which is german for capacity limit, now called carrying capacity, K strategists have a low r and a high K. They grow slow but more survive.
Beside this, What does the K in K strategist stand for?
Kapazität
Likewise, What are the differences between R and K strategists?
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.
Also, 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 the difference between R and K selective?
The r selected species live in populations that are highly variable. The fittest individuals in these environments have many offspring and reproduce early. … K selected species tend to have fewer offspring, so their populations cannot recover as fast from a disturbance such as over hunting or fire.
17 Related Question Answers Found
What are the differences between R selected and K selected species?
The r selected species live in populations that are highly variable. The fittest individuals in these environments have many offspring and reproduce early. K selected species live in populations that are at or near equilibrium conditions for long periods of time.
What animals are K strategists?
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 R and K selection mean?
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 strategists and K strategists?
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.
Are humans R or K selected?
Elephants, humans, and bison are all k-selected species. On the other hand, r-selected species often inhabit unstable environments and are completely density independent. These species often have short life expectancies, produce as many offspring as they can, and invest very low amounts of parental care.
Are humans K selected or R selected?
Elephants, humans, and bison are all k-selected species. On the other hand, r-selected species often inhabit unstable environments and are completely density independent. These species often have short life expectancies, produce as many offspring as they can, and invest very low amounts of parental care.
What does K strategist mean?
K-selected species
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.
What is the difference between a K and R strategist 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 are examples of K strategists?
Examples of K-selected species include birds, larger mammals (such as elephants, horses, and primates), and larger plants.
Are sea turtles R or K strategists?
Green Sea Turtles are both r and k strategists. They are k strategists because they live for a really long time and they are r strategists because they have a ton of babies then don’t stick around to take care of them.
What is the difference between r selected and K selected species?
The r selected species live in populations that are highly variable. The fittest individuals in these environments have many offspring and reproduce early. … K selected species tend to have fewer offspring, so their populations cannot recover as fast from a disturbance such as over hunting or fire.
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