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Are Frogs R Or K-Selected? The 19 Correct Answer

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Other examples of r-selected species include frogs, bacteria, and dandelions. On the other end of the spectrum are K-selected species, which are creatures like the elephant. Since they’re larger and have longer life expectancies, they don’t need to put all of their energy into growing and maturing up front.While the “typical” amphibian reproduction strategy would fall under the r end of the continuum, those that fall closer to the K end are some of the most remarkable and unbelievable adaptations that the animal kingdom has ever produced.Examples of r-selected species include pest organisms, such as rodents, insects, and weeds.

For example, elephants are highly K-selected, whereas mice are much more r-selected. Among the fishes, most, like the salmon, are r-selected.

r- and K-selection.
Characteristic r K
Reproductive Maturity early late
Size of offspring small large
Independence at birth early late
Ability to learn low high
Are Frogs R Or K-Selected?
Are Frogs R Or K-Selected?

Are amphibians R or K strategists?

While the “typical” amphibian reproduction strategy would fall under the r end of the continuum, those that fall closer to the K end are some of the most remarkable and unbelievable adaptations that the animal kingdom has ever produced.

What animals are r-selected?

Examples of r-selected species include pest organisms, such as rodents, insects, and weeds.


r and K selection | Ecology

r and K selection | Ecology
r and K selection | Ecology

Images related to the topicr and K selection | Ecology

R And K Selection | Ecology
R And K Selection | Ecology

What species are K and R-selected?

For example, elephants are highly K-selected, whereas mice are much more r-selected. Among the fishes, most, like the salmon, are r-selected.

r- and K-selection.
Characteristic r K
Reproductive Maturity early late
Size of offspring small large
Independence at birth early late
Ability to learn low high

What is an example of 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.

Is a frog a Type 3 survivorship?

Most frog species display a type III survivorship curve, where the death rate is very high early in life and much lower in the middle and older age groups. This reflects a very high death rate for tadpoles mostly due to a high rate of predation.

What animals are K strategists?

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 an example of an R strategist?

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


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Amphibian Reproductive Strategies – The Herpetological …

According to r/K selection, unstable conditions should favour r-selected species because they have the ability to produce large numbers of young …

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r and K selection

K-selected reproductive strategies tend towards heavy investment in each offspring, are more common in long-lived organisms, with a longer period of maturation …

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R-Selected vs. K-Selected Species – Video & Lesson Transcript

R-selected species are those that have shorter lifespans, are generally smaller, produce many young, and exhibit exponential growth. Elephants are K-selected …

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Are tortoises R or K-selected?

Examples of organisms undergoing K-selection are tortoises, elephants, people, and sequoia trees: their offspring are few but long-lived. In summary, r-selection is selection for quantity, K-selection for quality of offspring.

Which of the following is a typical K-selected species adaptation?

Which of the following is a typical K-selected species’ adaptation? K-selected species have a low biotic potential but high survivorship in part because of extended care for their young.

Which organisms would be most likely to be K-selected?

K selected organisms produce few offspring but invest a lot of energy in them, and examples would include whales, primates (which includes humans), elephants, and some birds, like arctic terns.


r and K selection

r and K selection
r and K selection

Images related to the topicr and K selection

R And K Selection
R And K Selection

Which organism is most likely to be part of an R-selected species?

R-selected organisms, those emphasizing a fast growth rate, high number of offspring, include rabbits, bacteria, salmon, plants such as weeds and grasses, etc.

Which example best illustrates a Semelparous K-selected species?

Which example best illustrates a semelparous, K-selected species? Locusts (grasshoppers in the family Acrididae) undergo cyclic population outbreaks, leading to massive swarms.

Are rabbits R strategists?

In r and K selection theory, the rabbit is known as an r-strategist. R-strategists often live in unstable environments, so there’s little chance that their offspring would survive into adulthood.

Are humans R or K strategists?

Both across and within species, r and K strategists differ in a suite of correlated characteristics. Humans are the most K of all. K’s supposedly have a longer gestation period, a higher birthweight, a more delayed sexual maturation, a lower sex drive, and a longer life.

What animal has a Type 2 survivorship curve?

For populations with Type II survivorship, the mortality of an individual does not depend on its age. Commonly listed examples of this include rodents, adult birds, and certain turtle species.

What animal has a Type 3 survivorship curve?

Trees, marine invertebrates, and most fish have a Type III survivorship curve. In a Type III curve, very few organisms survive their younger years.

What is type2 survivorship?

A type II survivorship curve shows a roughly constant mortality rate for the species through its entire life. This means that the individual’s chance of dying is independent of their age. Type II survivorship curves are plotted as a diagonal line going downward on a graph.

What is an R strategist and K strategist?

r strategist is an organism living in unstable environments. Hence, they undergo rapid reproduction to stabilize themselves. Whereas, K strategist is an organism living in stable environments. Therefore, they are high in population and do not need to undergo rapid reproduction.


Difference between r-selected and k-selected species

Difference between r-selected and k-selected species
Difference between r-selected and k-selected species

Images related to the topicDifference between r-selected and k-selected species

Difference Between R-Selected And K-Selected Species
Difference Between R-Selected And K-Selected Species

Are cats r selected?

Cats and dogs are r-selected compared to humans, but K-selected compared to mice and rats. Mice and rats, in turn, are K-selected compared to most insects. We can think of an r-K selection continuum and an organism’s position along it in a particular environment at a given instant in time (Pianka 1970).

What is the difference between a K and R strategist 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.

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