11:216:101 Lecture Notes - Lecture 13: Exponential Growth, Logistic Function, Lichen

• School: Rutgers University
• Department: Ecology, Evolution, and Natural Resources
• Course: 11:216:101
• Professor: S Sukhdeo

Document Summary

Abundant resources: slope of the line is shallow. __ individuals in the population that ar reproducing: nature, no, resources are always limited. Ideal: unlimited resources, no predators, accumulation of waste product. Jk: reindeer in st. psnl alaskan island 1910. 41 sq mile island: no predators, no reindeer prior to introduction, rd: natural high birth rate & food source is lichen (fungi and algae) but it. 2 females and 2 males grows slowly: high population density, birth rate > death rate, death rate > birth rate, resources are down, overcrowding. 4 acre field 10 acres: early 1940-50"s, rabbit population, suppressed shrubs trees from growing. 1954 virus outbreak killed all the rabbits: untouched shrubs and trees came back to k this area. Graph shows the proportion of individuals at age-specific stage that survives. Type 1 i: dall mountain sheep in alaska. Less mortality in the offspring, many of the young survive to old age.