If members of a species produce a large number of offspring...

If members of a species produce a large number of offspring but provide minimal parental care, then a Type _____ survivorship curve is expected. In contrast, if members of a species produce few offspring and provide them w ith long-standing care, then a Type _____ survivorship curve is expected.

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Key Concepts

Survivorship Curves

This concept refers to the graphical representation of the number or proportion of individuals surviving to different ages. There are three general types: Type I curves, which indicate high survival in early and middle life with a steep decline in later years; Type II curves, which show a relatively constant mortality rate throughout life; and Type III curves, which indicate low survival early in life with high mortality rates among the young. The type of curve observed in a species reflects its life history strategies and ecological adaptations.

r/K Selection Theory

This evolutionary concept describes different reproductive strategies organisms adopt. r-selected species typically produce a large number of offspring with little parental care, resulting in a Type III survivorship curve, where many offspring die early. In contrast, K-selected species produce fewer offspring but invest significant resources in parental care and offspring survival, leading to a Type I survivorship curve with high survival rates during early life and mortality occurring primarily in later stages.

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