What is R and K in biology?
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.
What is the R strategy in biology?
r-selected species, also called r-strategist, species whose populations are governed by their biotic potential (maximum reproductive capacity, r). Such species make up one of the two generalized life-history strategies posited by American ecologist Robert MacArthur and American biologist Edward O.
What reproductive strategy R or K would you expect each population to have?
The terms r-selection and K-selection have also been used by ecologists to describe the growth and reproductive strategies of various organisms….K and r Reproductive Strategies.
| Characteristics of r- and K-selected organisms | |
|---|---|
| r-organisms | K-organisms |
| have large litters | have small litters |
| reproduce at an early age | reproduce at a late age |
What is generally true of K strategist species as compared to R strategist species?
Which of the following is generally true of K-strategist species as compared to r-strategist species? They have longer life spans.
What are some examples of r-selected species?
Examples of r-selected species are marine invertebrates, such as jellyfish, and plants, such as the dandelion. Dandelions have small seeds that are dispersed long distances by wind; many seeds are produced simultaneously to ensure that at least some of them reach a hospitable environment.
What is the difference between a K and R strategist species quizlet?
r-selected species are more common in this environment, along with disturbed communities. K-selected species are more common in this environment. Largest number of individuals of a population that an environment can support. The allocation of energy, time, and other resources to the production and care of offspring.
What is the difference between r strategists and K strategists as reproductive strategies quizlet?
What is the difference between R-strategists and K-strategists as reproductive strategies? R-strategists laid many eggs and didn’t care for their young and K-Strategists cared for their young laying fewer eggs.
What is the meaning of R in K and R reproductive strategies?
K and r Reproductive Strategies. In the equations describing growth of populations of organisms, r represents the slope of the line representing exponential growth. The letter K represents the carrying capacity of a habitat for members of a given sort of organism.
What is R and K selection in biology?
The terms r-selection and K-selection have also been used by ecologists to describe the growth and reproductive strategies of various organisms. Figure 3. Bacterial Growth Curve representing r and K Reproductive Strategies. Those organisms described as r-strategists typically live in unstable, unpredictable environments.
What is the reproductive strategy of K-selected organisms?
Their reproductive strategy is to grow slowly, live close to the carrying capacity of their habitat and produce a few progeny each with a high probability of survival. Typical K-selected organisms are elephants, and humans.
What is the meaning of R in K R?
K and r Reproductive Strategies In the equations describing growth of populations of organisms, r represents the slope of the line representing exponential growth. The letter K represents the carrying capacity of a habitat for members of a given sort of organism.