What is an example of an R selected species?
What is an example of an 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 whales 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….r- and K-selection.
| Characteristic | r | K |
|---|---|---|
| Lifespan | short | long |
| Early mortality | high | low |
What is an R selected species give an example of an R selected marine animal?
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.
Which of the following is correct for r selected species?
Explanation: R-selected are the species having the ability to produce large number of progenies (offsprings) with small size. The population growth of these species is a function of biotic potential. Hence, option (a) is correct.
Which one of the following is characteristic of a K-selected species?
K-selected species are characterized by long gestation periods lasting several months, slow maturation (and thus extended parental care), and long life spans. In addition, they tend to inhabit relatively stable biological communities, such as late-successional or climax forests (see ecological succession).
Which interaction is a good example of interspecific competition?
Interspecific competition is a form of competition between different species of the same ecological area. An example of interspecific competition is between lions and leopards that vie for similar prey. Another example is a farm of rice paddies with weeds growing in the field.
What is a feature of R selected species quizlet?
r-selected species tend to be small, have many offspring, expend or invest minimal energy for each offspring, mature early, have short life spans, and may reproduce only once in their lifetime. Competition for resources in r-selected species’ habitats is typically relatively low.