Type III survivorship curve
Quick Summary
A Type III survivorship curve illustrates organisms with a high death rate immediately following birth, and a low survivorship rate. This pattern is characteristic of many small mammals, fish, and invertebrates. In contrast to Type I curves (seen in large mammals with low juvenile mortality) and Type II curves (with constant mortality rates), Type III curves are initially very steep, indicating high mortality among the young. However, the curve flattens out as individuals who reach maturity survive for a relatively longer time. This type of curve is often seen in species that produce many offspring but provide little care for them, a strategy known as r-selection.12
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survivorship curveThe 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…
Read MoreThe 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…
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population ecologySurvivorship curvesThe Type III survivorship curve indicative of this life history is initially very steep, which is reflective of very high mortality among the young, but flattens out as those individuals who reach maturity survive for a relatively longer time; it is exhibited by animals such as…
Read MoreThe Type III survivorship curve indicative of this life history is initially very steep, which is reflective of very high mortality among the young, but flattens out as those individuals who reach maturity survive for a relatively longer time; it is exhibited by animals such as…
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