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Members of squamate (large lizards and snakes) and Cricetidae (a rodent family) tend to fall more towards the r-selected side of the scale, therefore, the number of offspring plays a large role in the population size. It is also important to note that evolution is what caused species to be r-selected or K-selected.Examples of r-selected species include pest organisms, such as rodents, insects, and weeds.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 are examples of R-selected species?
Examples of r-selected species include pest organisms, such as rodents, insects, and weeds.
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.
r and K selection | Ecology
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What are K and R-selected species?
…
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 an R strategist?
Examples of r-strategist species are dogs, cats, insects, and fish.
Are turtles R or K-selected?
Similarly, reptiles such as sea turtles display both r- and K-traits: although large organisms with long lifespans (should they reach adulthood), they produce large numbers of unnurtured offspring.
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.
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.
See some more details on the topic Are snakes R or K-selected species? here:
R-Selected vs. K-Selected Species – Video & Lesson Transcript
K-selected species are those that are larger, have long lifespans, produce few young at a time, and exhibit logistic growth. R-selected species …
Reproductive Tactics – Utexas
r selection verus K selection (r-K selection continuum) … Most lizards and snakes lay eggs, but some species retain their eggs internally and give birth …
r and K selection
Even plants are capable of r- and K-selected reproductive strategies. Wind pollinated species produce much more pollin that insect pollinated ones, for example, …
Are snakes r selected species or k selected species? – Answers
Snakes display both r and K traits. They are much longer lived, produce a moderate number of eggs (some species far fewer than others).
r and K selection
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What are r-selected species quizlet?
r-Selected Species. Early reproductive age. r-Selected Species. Most offspring will die before they reach the reproductive age.
Are gorillas K-selected species?
Examples of animals that pursue K strategies are gorillas and whales. The largest of the primates, gorillas require specialized diets (with distinct differences in the diets of mountain and lowland gorillas) and produce a single offspring once every three to four years.
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.
What are r strategists and K strategists examples?
Bacteria, insects and corals are few examples of r strategists while human, primates, and elephants are few examples of K strategists. One other notable difference between r strategist and K strategist is their sizes. The r strategist is smaller in size while the K strategist is larger.
Are cats R or 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.
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.
Difference between r-selected and k-selected species
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Are dandelions r-selected species?
Examples of r-selected species are marine invertebrates, such as jellyfish, and plants, such as the dandelion. Dandelions have small seeds that are dispersed long distances by wind; many seeds are produced simultaneously to ensure that at least some of them reach a hospitable environment.
Are pioneer species R or K-selected?
Answer and Explanation: Pioneer species are most commonly R-selected species. This means that they have shorter lifespans, tend to be smaller plants, and usually produce multiple offspring.
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