Population Biology and demographics

Which of the following factors would be considered a density dependent factor in population growth of a herd of deer? a forest fire a pack of wolves a new road that cuts off the deer migration pathway a landslide blocking the herd from exiting a valley Some events that cause a change in population growth are influenced by the population's density-Density Dependent Factors. Other events are not impacted by the density of the population-Density Independent Factors. A herd of deer lives in a national park in Wyoming. Determine which of the factors listed below would be Density Dependent or Density Independent Factors. Hoof and Mouth disease Density Dependent Factor An earthquake Density Independent Factor A drought Density Independent Factor Mountain Lions Density Dependent Factor Factors that influence population growth There are different factors that influence change in population. Match the descriptive statement with its appropriate term Once male lion cubs become 2 years old, the dominant male will force them out of the pride. Emigration Grizzly bear are solitary animals, coming together only to mate. In Montana there are usually only 3 bear found in a 20 square mile area Population density Immature male lions will form their own pride, and readily accept new members Immigration Feline Distemper is a disease that is devastating the African cheetah population. Density Dependent Factor The amount cubs born this year is equal to the amount of lions that died Equilibrium The country of Rwanda has a national park that is home to several different populations of large predatory species, such as lions and hyenas. The reserve has enough prey species (such as zebra and wildebeest) to support a maximum capacity of 300 apex predators. carrying capacity Population Growth can be illustrated by showing how the population changes over time. Draw a graph that shows a population with unlimited resources and very few density dependent factors. Population Growth can be illustrated by showing how the population changes over time Draw a graph that shows a population that initially has unlimited resources and very few density dependent factors. But eventually resources start to deplete and density dependent factors increase. Population Growth can be illustrated by showing how the population changes over time Draw a population that has finally achieved equilibrium, but then density dependent factors are eliminated What aspect of human population growth curve is strongly illustrated by the diagram below? the population has achieved equilibrium density dependent factors caused humans to have an extremely long lag phase The human population has exceeded the carrying capacity What type of population change is represented by the last picture in this diagram? Density Dependent Factor Density Independent Factor Which of the following tells you population density? the number of births per year the number of frogs in a pond the number of deaths per year the number of bacteria per square millimeter Demographics Match the following demographic terms with the best descriptive statement. Population Growth Birth rate > Death rate Equilibrium Birth rate = Death rate Negative Population Growth Birth rate Which graph illustrates a population that will show the least amount of growth in the next 20 years.