Which leaves more offspring that survive to become adults?

Which leaves more offspring that survive to become adults?

On average, which leaves more offspring that survive to become adults and reproduce: a pair of elephants or a pair of rabbits? If both populations are stable, the pair of elephants and the pair of rabbits will leave the same number of offspring that survive to become adults and reproduce. You just studied 15 terms!

Are elephants K or R-selected?

Elephants, humans, and bison are all k-selected species. On the other hand, r-selected species often inhabit unstable environments and are completely density independent. These species often have short life expectancies, produce as many offspring as they can, and invest very low amounts of parental care.

Which organisms best illustrates K-selection?

Which organisms best illustrates K-selection? Guppies from Trinidad form two distinct populations that differ in several life history traits. These traits appear to relate to the local predator populations, pike-cichlids or killifish.

Which population dispersion pattern is most commonly seen in the field for most species?

In natural populations, random dispersion is rare, while clumped dispersion, which we’ll focus on in this lesson, is the most common pattern. Clumped dispersion is often due to an uneven distribution of nutrients or other resources in the environment. It can also be caused by social interactions between individuals.

How many offspring can an individual have in a lifetime?

There is a limit to how many children one person can have, but that number is much higher for men than it is for women. One study estimated a woman can have around 15-30 children in a lifetime, taking pregnancy and recovery time into account.

Why are elephants K strategists?

Few offspring that take a long time to develop ensure that the population doesn’t grow too rapidly, exceed the carrying capacity, or outstrip the resources of the environment. Thus, the elephant is considered a K-selected species. Low offspring mortality. Relatively steady population size near the carrying capacity.

Are humans 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.

Are Lions K strategist?

Common examples of k-strategists species include humans, lions and whales.