- What are examples of K-strategists?
- Are trees K-selected?
- Are minnows R strategists?
- Are elephants K strategists?
- Are oak trees R or K strategists?
- Are Grizzly Bears K-selected?
- What does R stand for in ecology?
- Are cats k-selected?
- What animals are K-strategists?
- Why are humans K-selected species?
- What does the K in K-selected species stand for?
- Are humans R or K?
- Are turtles R or K-selected?
- Are song sparrows K strategists?
- Are K-selected species generalists or specialists?
- Are K-selected species opportunists?
- Are Squirrels k-selected?
- Are oak trees K-selected?
- Are frogs K strategists?
- Are humans specialists or generalists?
What are examples of K-strategists?
Common examples of k-strategists species include humans, lions and whales….Characteristics of k-strategistsOccasional breeding.Longer gestation periods and give birth to one or two offspring at a time.Offspring take time to grow, and do so under the constant care and supervision of their parents.More items…•Jul 30, 2018.
Are trees K-selected?
K-selected species While larger in size when born, the offspring are relatively helpless and immature at birth. … Examples of K-selected species are primates including humans, other mammals such as elephants, and plants such as oak trees.
Are minnows R strategists?
Select from the following list the species that are r-strategists: minnow, giraffe, human, beetle, bacteria, eagle, and cougar. Minnow,beetle and bacteria because they all have short lifespans and focus on quick reproduction.
Are elephants K strategists?
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. … Elephants are classic examples of K-selected species—that is, species characterized by relatively stable populations.
Are oak trees R or K strategists?
This oak tree near my house is classified as a k-strategist because of it’s species survival strategies. The oak tree, like other k-strategists, develop in stable environments where their species population remains at stable numbers.
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 does R stand for in ecology?
The first variable is r (the intrinsic rate of natural increase in population size, density independent) and the second variable is K (the carrying capacity of a population, density dependent).
Are cats k-selected?
Cats and dogs are r-selected compared to humans, but K-selected compared to mice and rats. Mice and rats, in turn, are K-selected compared to most insects. We can think of an r-K selection continuum and an organism’s position along it in a particular environment at a given instant in time (Pianka 1970).
What animals are K-strategists?
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, humans, and whales, but also smaller long-lived organisms such as Arctic terns, parrots and eagles.
Why are humans 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.
What does the K in K-selected species stand for?
the carrying capacityr-selection: On one extreme are the species that are highly r-selected. r is for reproduction. … K-selection: On the other extreme are species that are highly K-selected. K refers to the carrying capacity, and means that the babies are entering a competitive world, in a population at or near its carrying capacity.
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 turtles R or K-selected?
Plants such as dandelions are another good example of an r-selected species. … Sea turtles are a good example of a species that fits somewhere in the middle. The produce many eggs and do not care for their offspring once the eggs have been laid, but turtles live very long lives.
Are song sparrows K strategists?
Song sparrows reproduce multiple times in a year and have limited parental care, traits of r-strategists. Generalists can live in a variety of habitats and have diverse diets.
Are K-selected species generalists or specialists?
When environmental conditions change, generalists are able to adapt, but specialists tend to fall victim to extinction much more easily. K-Selected species are species that have a low intrinsic growth rate, which causes the population to increase slowly until it reaches the carrying capacity of the environment.
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.
Are Squirrels k-selected?
Tree squirrels are K-selected compared to ground squirrels but rodents are r-selected compared to elephants, etc.
Are oak trees K-selected?
Oak trees produce many offspring that do not receive parental care, but are considered K-selected species based on longevity and late maturation.
Are frogs K strategists?
Frogs produce many eggs, and a fraction live to reproduce themselves. They are an example of r-strategists. “r and K selection.” University of Miami: Department of Biology.
Are humans specialists or generalists?
While H. sapiens are often highlighted as a classic example of a generalist species in this regard, local populations of our species are also able to specialize in the use of different food webs through time; hence, the generalist specialist.