What is the growth rate?
The growth rate is the growth of the population of an organism over time
How can the population distribution of a species affect other species found in the same environment?
They may be competing for space, food, or a limiting factor.
Describe the 3 main population distribution patterns of population
Random, Clumped, and Uniformed. Random is the population is random, clumped means the population is in groups, and uniformed means the population is evenly spaced
What factors affect population growth?
Birth rate, death rate, and immigration and emigration of the organism.
What 2 factors will cause an increase in population?
When new organisms are born and they immigrate to where you live
What 2 factors will cause a decrease in population?
When individuals emigrate from the area or when the death rate is high
Look at the graph on page 150. What is causing the jagged, horizontal line at the end of the graph?
It has reached the carrying capacity and when it drops below it would go back up and this process keeps repeating
What factors determine carrying capacity?
Limiting Factors
What limiting factors depend on population density?
Density-dependent limiting factors
What limiting factors do not typically depend on population density?
Density-Independent Limiting Factors
What happens to a population in response to a density-independent limiting factor?
The population may "crash" and then build up again quickly or stay low for a while
What factors play a role in demographic change?
Birth and Death Rates
What is an advantage of a random population distribution? What is a disadvantage?
An advantage is that there is no competition for space, food, or anything that may be limited if there was competition. A disadvantage is however that they are not as safe from predators and they may need something from the other population that they cann