- Why are r-selected species opportunists?
- Are bacteria R selected?
- Are trees R or K selected?
- Is a panda AK selected species?
- Are K-selected species opportunists?
- What is r-selected and K-selected species?
- Are dogs r-selected species?
- Are cats R strategists?
- What are the characteristics of R selected species?
- Are frogs r-selected species?
- What are examples of R-selected species?
- Are humans r-selected species?
- Why are rabbits r-selected species?
- Are humans R or K?
- Are Lions R or K selected?
Why are r-selected species 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 bacteria R selected?
R-selected organisms, those emphasizing a fast growth rate, high number of offspring, include rabbits, bacteria, salmon, plants such as weeds and grasses, etc.
Are trees R or K selected?
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.
Is a panda AK selected species?
Pandas fit the defining characteristics of a K-selected, or equilibrium, species. Female pandas carry their young for approximately 135 days, and only one or two panda cubs are born to a mother each year. … Pandas are usually solitary creatures, though their home ranges can overlap with one another.
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 r-selected and K-selected species?
r-selected babies grow rapidly, and tend to be found in less competitive, low quality environments. … K-selected species produce offspring that each have a higher probability of survival to maturity.
Are dogs r-selected species?
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 cats R strategists?
r selected species are also known as r strategists and opportunistic species. They practice big-bang reproduction, AKA semelparity. … Cats are r-selected compared to humans, and K-selected compared to cockroaches.
What are the characteristics 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 frogs r-selected species?
Other examples of r-selected species include frogs, bacteria, and dandelions. … R-selected species produce so many offspring because it is not likely that many of them will survive.
What are examples of 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 humans r-selected species?
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. … R-selected species can include mosquitos, mice, and bacteria.
Why are rabbits r-selected species?
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 R or K?
Both across and within species, r and K strategists differ in a suite of correlated characteristics. Humans are the most K of all. K’s supposedly have a longer gestation period, a higher birthweight, a more delayed sexual maturation, a lower sex drive, and a longer life.
Are Lions R or K selected?
Common examples of k-strategists species include humans, lions and whales.