Biology 2485B Lecture Notes - Lecture 3: Aedes Aegypti, Logistic Function, Exponential Growth
12 Apr 2019
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Learning objectives: describe important characteristics of populations (size, density, structure, dynamics, define exponential growth, logistic growth, carrying capacity, limiting factors, explain the difference between r- and k-selected species. What is a population: population: individuals of the same species inhabiting a particular area, population ecology: the study of the dynamics of populations. Same species, once we begin looking at more than one species now talking about communities. Species often consist of multiple populations that are geographically isolated from one another: consider all factors that might lead a population to change in size internal and external. Population size: population size: the number of individuals present in the population at a given time, population size may increase, decrease undergo cyclical change, or remains table over time. Low densities make it harder to find mates, but individuals enjoy plentiful resources and space. Larger organisms tend to have lower population densities because they require more resources to survive.
