What is a 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. Such species make up one of the two generalized life-history strategies posited by American ecologist Robert MacArthur and American biologist Edward O.
What is the difference between R and K selective?
For example, elephants are highly K-selected, whereas mice are much more r-selected….r- and K-selection.
| Characteristic | r | K |
|---|---|---|
| Size of offspring | small | large |
| Independence at birth | early | late |
| Ability to learn | low | high |
| Lifespan | short | long |
What is an example of an R strategist?
Examples of r-strategist species are dogs, cats, insects, and fish.
What is an R strategist?
r-selected species, also called r-strategist, species whose populations are governed by their biotic potential (maximum reproductive capacity, r). Such species make up one of the two generalized life-history strategies posited by American ecologist Robert MacArthur and American biologist Edward O.
What are examples of 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.
What is the difference between a K and R strategist species quizlet?
Identify differences between K- and r-selected species. K-selected species are typically more adversely affected by invasive species than r-selected species, which are minimally affected by invasive species. Most invasive species are r-selected species.
What are K-selected species?
K-selected species possess relatively stable populations fluctuating near the carrying capacity of the environment. 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.
What is the difference between K strategist and R strategist?
The key difference between r strategist and K strategist is that the r strategist lives in unstable and unpredictable environments while the K strategist lives in more stable environment. Because of this environmental conditions, the r strategists produce many offspring while the K strategists produce few offsprings.
What is a K-selected species?
What is the difference between R and K strategists?
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.
What is the difference between K-strategist and r-strategist?
Typical examples of r-strategists are K-strategists, on the other hand occupy more stable environments. They are larger in size and have longer life expectancies. They are stronger or are better protected and generally are more energy efficient. They produce, during their life spans, fewer progeny, but place a greater investment in each.
What are the characteristics of K strategist species?
Characteristics of k-strategists. K strategist species show similar characteristics of reproduction like: 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.
Why do K strategists reproduce so well?
So, they decided that they are better off focusing their energy on generating a few, healthy, complex offspring that can receive ample care so that they go on to survive till adulthood in a highly competitive world. K strategist species show similar characteristics of reproduction like: