Are Fish R Selected Or K Selected
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.
Are whales R or K-selected?
Whale reproduction follows a K-selection strategy, with few offspring, long gestation, long parental care, and a long period until sexual maturity.
What are K-selected and R-selected species?
K-selected species possess relatively stable populations and tend to produce relatively low numbers of offspring; however, individual offspring tend to be quite large in comparison with r-selected species.
Are cats R or 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.
Are Snakes r selected species?
Members of squamate (large lizards and snakes) and Cricetidae (a rodent family) tend to fall more towards the r-selected side of the scale, therefore, the number of offspring plays a large role in the population size. It is also important to note that evolution is what caused species to be r-selected or K-selected.
Which organisms would be most likely to be K-selected?
K selected organisms produce few offspring but invest a lot of energy in them, and examples would include whales, primates (which includes humans), elephants, and some birds, like arctic terns. This is opposed to r selected species, which produce a lot of offspring but tend to invest relatively little energy in them.
What does K-selection mean?
What does the k-selection refer to? “k” conceptually refers to the carrying capacity of the logistic growth equation. What is k-selection defined as? Selection that favors a more effective utilization of resources.
What are the characteristics of an R-selected species?
R-selected species are those that produce a large number of offspring and contribute few resources to each individual offspring. They often offer little to no parental care, have high offspring mortality, short life spans, and small body sizes.
What is generally true of K strategist species as compared to R strategist species?
Which of the following is generally true of K-strategist species as compared to r-strategist species? They have longer life spans.
What are R species?
r-selected species are defined as those present in fluctuating environments that have large numbers of offspring and do not provide long-term care after birth.
Is a cat AK species?
Compared to members of those wild species who lay hundreds to thousands of eggs that receive no parental care and die young, the domestic canine and feline species are classified as K species.
Is a frog an R-selected species?
Other examples of r-selected species include frogs, bacteria, and dandelions.
Which of the following is a characteristic of a K-selected species?
Large body size and longer life span are characteristic of k-selected species.
What is the difference between R and K strategies?
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.
Which of the following is a typical K selected species adaptation?
Which of the following is a typical K-selected species’ adaptation? K-selected species have a low biotic potential but high survivorship in part because of extended care for their young.