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). Such species make up one of the two generalized life-history strategies posited by American ecologist Robert MacArthur and American biologist Edward O.

What is R and K reproductive strategy?

The symbols r and K originate in the mathematics of population biology and refer to 2 ends of a continuum in which a compensatory exchange occurs between gamete production (the r-strategy) and longevity (the K-strategy).

Which organism is K strategist?

Organisms whose life history is subject to K-selection are often referred to as K-strategists or K-selected. Organisms with K-selected traits include large organisms such as elephants, humans, and whales, but also smaller long-lived organisms such as Arctic terns, parrots and eagles.

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 make up one of the two generalized life-history strategies posited by American ecologist Robert MacArthur and American biologist Edward O.

Which of the following 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.

Which of the following is an example of an R strategist?

Examples of r-strategist species are dogs, cats, insects, and fish.

What is the difference between R and K selective quizlet?

K selection has a low number of offspring and a long life span; R selection has a higher number of offspring and short life span.

What is an R-strategist quizlet?

Terms in this set (8) r-strategists. tolerate unpredictable conditions by using a wide variety of resources. k-strategists. thrive in predictable environments but compete for high-quality resources.

What is an R species?

R-selected species are called so after the variable “r,” which in population ecology stands for the maximum reproductive rate within a population. Because r-selected species opt to produce large numbers of offspring, they usually exhibit high booms in population.

What is K-strategist?

Why do r strategists have more offspring than K strategists?

Because of this environmental conditions, the r strategists produce many offspring while the K strategists produce few offsprings. Based on the environments they live in, and the stability of these environments, two categories of organisms can be found.

What is the difference between K-strategist and r-strategist?

Typical examples of r-strategists are 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.

What is the reproductive strategy of R and K organisms?

K and r Reproductive Strategies. 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. The table below summarizes some of the differences between r-organisms and K-organisms.

What are the characteristics of K strategist species?

Characteristics of k-strategists. K strategist species show similar characteristics of reproduction like: Occasional breeding; Longer gestation periods and give birth to one or two offspring at a time; Offspring take time to grow, and do so under the constant care and supervision of their parents.