Are Humans R Strategists Or K Strategists? - Fixanswer

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.

Are humans K strategist?

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 examples of K strategists?

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.

Are mammals R or K strategists?

Examples of K-strategists include large mammals such as deer, bears, elephants, etc. The r-strategy, by contrast, is used by many lizards, amphibians, fish, and small mammals, and it ensures species survival through quantity.

Are cats K strategists?

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 humans R or K?

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 . ... K-selected species are characterized by long gestation periods lasting several months, slow maturation (and thus extended parental care), and long life spans.

Are trees K-selected?

Examples of K-selected species are primates including humans, other mammals such as elephants, and plants such as oak trees. ... The tree’s height and size allow it to dominate other plants in the competition for sunlight, the oak’s primary energy resource.

Is a whooping crane R or K-selected?

Not much is known about the learning that takes place in this K-selected species over the almost one year that the young whooping crane colt remains with its adult parents.

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 is 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.

What species are both R and 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. (b) Dandelions and jellyfish are both considered r-selected species as they mature early, have short lifespans, and produce many offspring that receive no parental care.

Are Squirrels R strategists?

Most invertebrates are r-selected compared to vertebrates. Tree squirrels are K-selected compared to ground squirrels but rodents are r-selected compared to elephants, etc.

What are the six characteristics of an R-selected species?

Rapid development.
High reproductive rate.
Early reproductive age.
Small body size.
One reproductive cycle.
Short lifespan.
Poor competitive ability.
High mortality of offspring.

Which of the following is an R strategist?

Insects produce a large number of offsprings and fall in the category of r strategist. Thus, the correct answer is B, Insects.