What is survivorship curve quizlet?

A survivorship curve is a graph showing the number or proportion of individuals surviving to each age for a given species or group (e.g. males or females). high age-specific survival probability in early and middle life, followed by a rapid decline in survival in later life.

What are survivorship curves in biology?

Survivorship curve, graphic representation of the number of individuals in a population that can be expected to survive to any specific age.

What are the 4 types of 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 is a Type 1 survivorship curve quizlet?

Diagram showing the number of surviving members over time from a measured set of births and the life history of a species. Type 1. Common for large animals, low infant mortality, high parental care, usually a long life span.

Which type of survivorship curve is characteristic of humans quizlet?

Humans and most mammals exhibit a type I survivorship curve. mortality is relatively constant throughout the entire life span, and mortality is equally likely to occur at any point in the life span. Many bird populations provide examples of an intermediate or type II survivorship curve.

What organisms have a Type 3 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. In contrast, the Type II curve considers birds, mice, and other organisms characterized by a relatively constant…

How do you calculate a survivorship curve?

A survivorship curve is a graph that measures the proportion of individuals in a given species that are alive at different ages. Typically, the number of individuals of the population is plotted on the y-axis of the graph and the age of survivorship is plotted on the x-axis of the graph.

What is an example of a type I survivorship curve?

Examples. Examples of populations with Type I survivorship include humans in developed countries and animals in zoos. A lot of effort is invested in each individual, resulting in high survivorship throughout the life cycle: Most individuals die of old age.

What type of survivorship curve do humans have?

Type I survivorship curve
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.

Which type of survivorship curve do humans have?

Type I survivorship
Examples of populations with Type I survivorship include humans in developed countries and animals in zoos. A lot of effort is invested in each individual, resulting in high survivorship throughout the life cycle: Most individuals die of old age.