R+and+K+Strategy

**K and R - Strategists**
specialist, they are not adapted and they are not specialist. They don't live very long and they have no parental care. In unstable or unpredictable environments r-selection predominates, as the ability to [|reproduce] quickly is crucial, and there is little advantage in adaptations that permit successful competition with other organisms, because the environment is likely to change again. Traits that are thought to be characteristic of r-selection include: high [|fecundity], small [|body size], early maturity onset, short generation time, and the ability to [|disperse] offspring widely. Organisms whose life history is subject to r-selection are often referred to as r-strategists or r-selected. Organisms with r-selected traits range from [|bacteria] and [|diatoms], through [|insects] and [|weeds], to various [|semelparous] [|cephalopods] and [|mammals], especially small [|rodents]. 
 * R- Strategists:** Produce many, many seeds. (High reproductive rate) they grow quickly. They are not

[[|edit]]
Example: Fish are R- Strategists, they dont take care of all their litlle offspring, and they dont live very long.

In stable or predictable environments K-selection predominates, as the ability to [|compete] successfully for limited resources is crucial, and populations of K-selected organisms typically are very constant and close to the maximum that the environment can bear. Traits that are thought to be characteristic of K-selection include: large body size, long [|life expectancy], and the production of fewer offspring that require extensive parental care until they mature. 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], [|trees], [|humans] and [|whales], but also smaller, long-lived organisms such as [|Arctic Terns]. Examples: Humans, climax species, oak trees.
 * K- Strategists:** Produce few offspring, offer a lot of parental care, they are well adapted to habitat.