Educator.com
Relative Rates of Growth
It's all relative! A video introduces the concept that the relative rate of growth is the rate of growth relative to the dependent variable, and then compares the equation of the standard model and the relative growth version.
Bozeman Science
Logistic Growth
A video on logistic growth begins with a review of exponential growth before moving on to limiting factors. This naturally leads to a decrease in the growth rate and a discovery of carrying capacity.
Bozeman Science
Exponential Growth
How does a rabbit keep his fur looking good? With hare spray! Here is a video that begins with the concept of exponential growth, modeling it through four generations of rabbits. It includes two different methods to solve growth rate...
Crash Course
Population Ecology: The Texas Mosquito Mystery
While 80 percent of people with West Nile Virus show no symptoms, in severe cases, it causes death by infecting the membranes around the spinal cord and brain. The video starts by making population ecology relevant. It includes density...
Curated OER
What is Exponential Growth?
Exponential functions often involve the rate of increase or decrease of something. When it's a rate of increase, you have an exponential growth function! The instructor discusses exponential function and how to determine if a value makes...
BioEd Online
Bio Ed Online: Introduction to Populations
What are the characteristics that define populations? What causes populations to grow or decline? In the following video you will learn how a population is a group of individuals of the same species living within a designated area at one...
Bozeman Science
Bozeman Science: R and K Selection
Paul Andersen explains the differences between an r and a K selected species. He starts with a brief description of population growth noting the importance of; r or growth rate, N or number of individuals in the population, and K the...
Bozeman Science
Bozeman Science: Logistic Growth
Paul Andersen explains how populations eventually reach a carrying capacity in logistic growth. He begins with a brief discussion of population size ( N ), growth rate ( r ) and exponential growth. He then explains how density dependent...
PBS
Pbs Learning Media: Baby Animals
Observe the growth rates of a calf, chick and piglet. See how three children used the scientific method to determine which of these animals grows the fastest.