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A Survivorship Curve is the graphical representation of the proportion or the number of individuals surviving at each age for a given group or species
Types of curves:
Type I – A convex curve. Most individual live to adulthood with most mortality in old age. eg. humans, elephants,etc
Type II – A straight line. An individual’s chance of dying is independent of age. eg. small birds and mammals
Type III – A concave curve. Few individuals live to adulthood, with the chance of dying decreasing with age.eg. oysters, redwood trees,etc
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