Question: What Animals Are K-Strategists?

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..

Why are elephants k-selected?

(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 frogs K strategists?

Frogs produce many eggs, and a fraction live to reproduce themselves. They are an example of r-strategists. “r and K selection.” University of Miami: Department of Biology.

Are humans R or K?

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.

Are K-selected species opportunists?

Explanation: R-selected or opportunistic species are species that have high growth rates, produce many offspring, and have low survival odds for those many offspring. … Examples of k-selected species include mammals such as humans, dolphins, and rhinos.

Are turtles R or K-selected?

Plants such as dandelions are another good example of an r-selected species. … Sea turtles are a good example of a species that fits somewhere in the middle. The produce many eggs and do not care for their offspring once the eggs have been laid, but turtles live very long lives.

Are song sparrows K strategists?

Song sparrows reproduce multiple times in a year and have limited parental care, traits of r-strategists. Generalists can live in a variety of habitats and have diverse diets.

Which one is a K-selected species?

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 are R & K-selected species?

r-selection: On one extreme are the species that are highly r-selected. r is for reproduction. Such a species puts only a small investment of resources into each offspring, but produces many such low effort babies….r- and K-selection.CharacteristicrKLifespanshortlongEarly mortalityhighlow6 more rows

Are Lions K-selected?

Common examples of k-strategists species include humans, lions and whales.

Are elephants K strategists?

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. … Elephants are classic examples of K-selected species—that is, species characterized by relatively stable populations.

Are Grizzly Bears K-selected?

The grizzly bear (Ursus arctos ssp.) Elephants and bears though, also take K-selection reproduction very seriously. … Because of the immense dedication mother’s provide for their cubs, many of a bear’s advantageous traits are attributable to this K-selection type reproduction style.

Are trees K-selected?

K-selected species While larger in size when born, the offspring are relatively helpless and immature at birth. … Examples of K-selected species are primates including humans, other mammals such as elephants, and plants such as oak trees.

Are cats r selected species?

r selected species are also known as r strategists and opportunistic species. They practice big-bang reproduction, AKA semelparity. … Cats are r-selected compared to humans, and K-selected compared to cockroaches.

Are oak trees K-selected?

Oak trees produce many offspring that do not receive parental care, but are considered K-selected species based on longevity and late maturation.

Are rabbits R or K 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 dogs K strategists?

Indeed, one can think of a given organism as an “r-strategist” or a “K-strategist” only relative to some other organism; thus statements about r and K selection are invariably comparative. Cats and dogs are r-selected compared to humans, but K-selected compared to mice and rats.

What does R and K stand for?

In population biology, r- and K-strategy means survival of populations by (r)eproduction (i.e. it’s a quantitative approach, were the size of a populations ensures survival of it while the chance for the individual is low).

What does R stand for in ecology?

The first variable is r (the intrinsic rate of natural increase in population size, density independent) and the second variable is K (the carrying capacity of a population, density dependent).