- What is the difference between a K and R strategist species quizlet?
- Are dogs K-strategists?
- Why are rabbits R-selected?
- Are humans K or R selected?
- Are Lions K-selected?
- What does R stand for in r-selected species?
- Are K-selected species opportunists?
- What is a K strategist?
- What animals are r strategists?
- Are Grizzly Bears K-selected?
- What is a feature of R-selected species?
- Are trees R or K strategists?
- Why r selected species tend to be opportunists?
- Are cats K-strategists?
- Why are rabbits R-strategists?
What is the difference between a K and R strategist species quizlet?
r-selected species are more common in this environment, along with disturbed communities.
K-selected species are more common in this environment.
Largest number of individuals of a population that an environment can support..
Are dogs 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.
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 humans K or R 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.
Are Lions K-selected?
Common examples of k-strategists species include humans, lions and whales.
What does R stand for in 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.
Are K-selected species opportunists?
Explanation: R-selected or opportunistic species are species that have high growth rates, produce many offspring, and have low survival odds for those many offspring. … Examples of k-selected species include mammals such as humans, dolphins, and rhinos.
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 produce a few large young instead of many small young.
What animals are r strategists?
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 Grizzly Bears K-selected?
The grizzly bear (Ursus arctos ssp.) Elephants and bears though, also take K-selection reproduction very seriously. … Because of the immense dedication mother’s provide for their cubs, many of a bear’s advantageous traits are attributable to this K-selection type reproduction style.
What is a feature of R-selected species?
The production of numerous small offspring followed by exponential population growth is the defining characteristic of r-selected species. They require short gestation periods, mature quickly (and thus require little or no parental care), and possess short life spans.
Are trees R or K strategists?
For instance, trees have traits such as longevity and strong competitiveness that characterise them as K-strategists. In reproduction, however, trees typically produce thousands of offspring and disperse them widely, traits characteristic of r-strategists.
Why r selected species tend to be opportunists?
Why do r-selected species tend to be opportunists? They reproduce and disperse rapidly when conditions are favorable or when disturbance opens up and a new habitat or niche for invasion. … They tend to reproduce later in life and have a small number of offspring with fairly long life spans.
Are cats K-strategists?
Animals such as fish and frogs that lay hundreds of eggs at a time are R-strategists, animals such as humans, puffins and the majority of other organisms are K-strategists. The image shown shows a cat, an example of a organisms that produces few long living organisms.
Why are rabbits R-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. To solve this problem, r-strategists produce a ton of cheap offspring.