Type you survivorship curves are typical of species that exhibit?

Type I or convex curves are characterized by high age-specific survival probability in early and middle life, followed by a rapid decline in survival in later life. They are typical of species that produce few offspring but care for them well, including humans and many other large mammals.

1. What is a Type I survivorship curve?
2. What species exhibits a type I survival curve?
3. What are Type 1 2 and 3 survivorship curves?
4. What does Type 3 survivorship curve mean?
5. What animals have a Type 2 survivorship curve?
6. What type of survivorship curve do elephants have?
7. Are turtles Type 3 survivorship curve?
8. Which type of survivorship curve is shown by oyster?
9. What is an example of a Type 3 organism?
10. Which survivorship strategy is used by the type 3 species?
11. What type of survivorship curve do frogs have?
12. What r-selected species?
13. Which of the following is a characteristic of an organism that displays a Type III?
14. Are dogs K or R-selected species?
15. Why do K selected species have a Type 1 survivorship curve?
16. What type of survivorship curve do rabbits have?

What is a Type I survivorship curve?

life tables

In survivorship curve. The Type I curve, illustrated by the large mammals, tracks organisms that tend to live long lives (low death rate and high survivorship rate); toward the end of their life expectancies, however, there is a dramatic increase in the death rate.

What species exhibits a type I survival curve?

Type I. Humans and most primates have a Type I survivorship curve. In a Type I curve, organisms tend not to die when they are young or middle-aged but, instead, die when they become elderly.

What are Type 1 2 and 3 survivorship curves?

There are three types of survivorship curves. Type I curves depict individuals that have a high probability of surviving to adulthood. Type II curves depict individuals whose chance of survival is independent of age. Type III curves depict individuals that mostly die in the early stages of their life.

What does Type 3 survivorship curve mean?

life tables

In survivorship curve. The Type III curve, characteristic of small mammals, fishes, and invertebrates, is the opposite: it describes organisms with a high death rate (or low survivorship rate) immediately following birth.

What animals have a Type 2 survivorship curve?

For populations with Type II survivorship, the mortality of an individual does not depend on its age. Commonly listed examples of this include rodents, adult birds, and certain turtle species.

What type of survivorship curve do elephants have?

Elephants have a Type I survivorship curve (mortality increases with age), and fecundity decreases with age.

Are turtles Type 3 survivorship curve?

Survivorship varies significantly across age-classes, with mortality generally inversely related to age (type III survivorship). Survivorship also varies significantly across habitat types, with marine and terrestrial turtles exhibiting higher survivorship early in life than freshwater turtles.

Which type of survivorship curve is shown by oyster?

This type of curve (type- III) is the characteristic of those species in which mortality rate is high during the early life stages. Some birds, oysters, shell fish, many insects, oak tree and fishes exhibit this type of survivorship curve (figure 4).

What is an example of a Type 3 organism?

Examples include lizards, hydra, and some small mammals. Type III individuals initially have a rather low chance of survival. Those that do survive may live to an advanced age. Examples include many fish and other marine organisms.

Which survivorship strategy is used by the type 3 species?

A type III survivorship curve depicts species where few individuals will live to adulthood and die as they get older because the greatest mortality for these individuals is experienced early in life. This type of survivorship curve is drawn as a concave curve on a graph.

What type of survivorship curve do frogs have?

Most frog species display a type III survivorship curve, where the death rate is very high early in life and much lower in the middle and older age groups.

What r-selected species?

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. Such species are also generally not very invested in protecting or rearing these young.

Which of the following is a characteristic of an organism that displays a Type III?

Which of the following is a characteristic of an organism that displays a Type III survivorship curve, as shown in the graph above? The organism has a fairly constant mortality rate over time.

Are dogs K or 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.

Why do K selected species have a Type 1 survivorship curve?

Because time, energy and resources are invested into child rearing, K -selected species tend to have a Type 1 and Type 2 survivorship curve. Offspring live longer lives and grow slowly until their habitat hits the carrying capacity.

What type of survivorship curve do rabbits have?

Such organisms follow the Type II or B curve of survivorship. Within these, there are some organisms (like butterflies and other insects) that lean more towards the A curve, and therefore follow a B₁ curve. Likewise, organisms (like rabbits, mice) that lean more towards the C curve, are said to be following a B₂ curve.