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.
Contents
- 1 What is r-selected vs K selected?
- 2 What is a K selected species?
- 3 What is an R species?
- 4 What is the difference between R and K strategists?
- 5 What is R species and K species?
- 6 What are some r-selected species?
- 7 What is an r-selected species give an example?
- 8 What is R and K reproductive strategy?
- 9 What does R and K mean for population growth?
- 10 What is an R strategist and K strategist?
- 11 Are primates K-selected or r-selected?
- 12 What is a feature of r-selected species quizlet?
- 13 Why are elephants K-selected species?
- 14 Are pioneer species generally r-selected or K-selected?
- 15 How are alligators both like r-selected and K-selected species?
What is r-selected vs K selected?
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.
What is a K selected species?
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 is an R species?
r-selected species are those that emphasize high growth rates, typically exploit less-crowded ecological niches, and produce many offspring, each of which has a relatively low probability of surviving to adulthood (i.e., high r, low K). A typical r species is the dandelion (genus Taraxacum).
What is the difference 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.
What is R species and K species?
r is for reproduction. Such a species puts only a small investment of resources into each offspring, but produces many such low effort babies. 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 some r-selected species?
Typical examples of r-species are mice, rabbits, weeds and bacteria, which have a lot of offspring, but a short life expectancy. Examples of organisms undergoing K-selection are tortoises, elephants, people, and sequoia trees: their offspring are few but long-lived.
What is an r-selected species give an example?
Typical examples of r-species are mice, rabbits, weeds and bacteria, which have a lot of offspring, but a short life expectancy. Examples of organisms undergoing K-selection are tortoises, elephants, people, and sequoia trees: their offspring are few but long-lived.
What is R and K reproductive strategy?
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)
What does R and K mean for population growth?
r, which is the growth rate of the population (how quickly or slowly it changes size) N, which is the number of individuals in that population; and finally. K, which is the carrying capacity, the maximum number of individuals that can be supported by the resources in a given area.
What is an R strategist and K strategist?
The r and K strategists are two types of organisms categories under the basis of r and K selection. r strategist is the organism living in unstable environments. On the contrary, K strategist lives in stable, predictable environments. Therefore, r strategist reproduces fast in order to ensure its survival.
Are primates K-selected or r-selected?
K-selected species are characterized by long gestation periods lasting several months, slow maturation (and thus extended parental care), and long life spans. Examples of K-selected species include birds, larger mammals (such as elephants, horses, and primates), and larger plants.
What is a feature of r-selected species quizlet?
r-selected species. reproduce rapidly with usually many offspring. r-selected species. Only $47.88/year. very little parental care.
Why are elephants K-selected species?
(a) Elephants are considered K-selected species as they live long, mature late, and provide long-term parental care to few offspring. Oak trees produce many offspring that do not receive parental care, but are considered K-selected species based on longevity and late maturation.
Are pioneer species generally r-selected or K-selected?
This indicates that pioneer terrestrial gastropods generally cannot be regarded as r-selected. Pioneer species may possess any of several life history strategies, and the combinations of traits shown by them may have little in common with the r-K selection concept.
How are alligators both like r-selected and K-selected species?
Some reptiles, like alligators and crocodiles, are also K-selected, living for a long time and laying eggs multiple times. Mice are mammals that are better described as r-selected because they are small, able to reproduce early, and have many offspring with a high mortality rate.