- Are sharks R or K-selected species?
- Are trees K-selected?
- Are frogs K strategists?
- Are cats K strategists?
- Can humans be r-selected?
- Are rabbits r-selected species?
- Are rabbits R or K strategists?
- Are cats r selected species?
- What does R stand for in ecology?
- Why are some species like turtles hard to label as K or R selected?
- Are Lions R or K-selected?
- Why are elephants K-selected species?
- Are weeds R-strategists?
- What animals are K strategists?
- Are dogs K or R strategists?
- Are humans R or K?
- Are K-selected species opportunists?
- What does R stand for in r-selected species?
Are sharks R or K-selected species?
Shark Biology Contributes to Population Decline and Fishery Collapses.
Sharks are known as “K-selected” species, which means that they have a life history strategy featuring slow growth, delayed maturation, long gestation, and the production of few young..
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 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 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.
Can humans be r-selected?
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. … R-selected species can include mosquitos, mice, and bacteria.
Are rabbits r-selected species?
Typical examples of r-species are mice, rabbits, weeds and bacteria, which have a lot of offspring, but a short life expectancy. Examples of organisms undergoing K-selection are tortoises, elephants, people, and sequoia trees: their offspring are few but long-lived.
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 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.
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).
Why are some species like turtles hard to label as K or R selected?
Why are some species like turtles, hard to label as K or r selected species? Turtles display traits for both labels, for instance a turtle is like a k species due to its long life span, but is an r species in not nurturing offspring. Late Loss, high survival rate, and animal population mostly dies due to old age.
Are Lions R or K-selected?
Common examples of k-strategists species include humans, lions and whales.
Why are elephants K-selected species?
(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 weeds R-strategists?
R-strategists are species that have small bodies, rapid maturation, and fast growing populations. Examples of r-strategists are weeds, mosquitos and mice. …
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.
Are dogs K or R 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.
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.
What does R stand for in r-selected species?
A whale tends for a single calf. 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.