Survivorship curvesK-selected species usually have a Type I survivorship curve. Distribution of the population. The Logistic Growth Model A Small Population Initially Experiences Exponential Growth As The Population Become Growth Biology Exponential High School Biology Type III or concave curves have the greatest mortality lowest age-specific survival early in life with relatively low rates of death high probability of survival for those surviving this bottleneck. . Members of an r-selected species characteristically. Survivorship curve type 1. Are elephants K or R selected. For making survivorship curves ecologists identify a cohort which is a group of individuals of the same species in the same population born at the same time. It can help us to know about various aspects such as life expectancy and age-specified survival of a particular species. Learn about r-selected vs. Which of the following graphs b...