- Why are rabbits R selected?
- Are cats R strategists?
- Are humans R strategists?
- Are weeds R strategists?
- Why are invasive species R-selected?
- Are Lions R or K-selected?
- Are dogs r selected species?
- Are humans R-selected or K-selected?
- How many babies do rabbits have?
- Are rabbits R or K strategists?
- What species are r-selected?
- Are rabbits r-selected species?
- Which organism is most likely to be an R-selected species?
- Are bacteria R selected?
- How long do rabbits live for?
Why are rabbits R selected?
So this begs the question are rabbits truly prolific, and why.
In Page 2 the 1960s two ecologists came up with r/K selection theory.
It relates to parental investment and reproductive strategies adopted by species in order to advance its kind into the future.
And they have the ability to reproduce rapidly..
Are cats R 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 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.
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. …
Why are invasive species R-selected?
Biologists characterize most invasive species as r-selected. … R-selected species often grow quickly and mature rapidly. Combined with their explosive reproductive potential, their quick growth and maturation allow them to colonize disturbed and early successional habitats remarkably well.
Are Lions R or K-selected?
Common examples of k-strategists species include humans, lions and whales.
Are dogs r selected species?
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-selected or K-selected?
Elephants, humans, and bison are all k-selected species. … These species often have short life expectancies, produce as many offspring as they can, and invest very low amounts of parental care. R-selected species can include mosquitos, mice, and bacteria.
How many babies do rabbits have?
And as you watch, the fur wiggles…. Rabbits are pregnant for 4-5 weeks and can have up to 15(!) babies, but the average litter size is 7. The female rabbit is called a doe, giving birth is called kindling and baby rabbits are called kittens.
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.
What species are r-selected?
r-selected species are those that emphasize high growth rates, typically exploit less-crowded ecological niches, and produce many offspring, each of which has a relatively low probability of surviving to adulthood (i.e., high r, low K).
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.
Which organism is most likely to be an R-selected species?
r-selected babies grow rapidly, and tend to be found in less competitive, low quality environments. Although not always the case, r-selection is more common among smaller animals with shorter lifespans and, frequently, non-overlapping generations, such as fish or insects.
Are bacteria R selected?
R-selected organisms, those emphasizing a fast growth rate, high number of offspring, include rabbits, bacteria, salmon, plants such as weeds and grasses, etc.
How long do rabbits live for?
European rabbit: 9 yearsRabbit/Lifespan