Vocab
The number of organisms per unit area
What is population density?
Growth rate proportional to population size. Will see a drastic increase in growth (exponential)
What is Exponential Growth?
it depends on population density per unit area
What is density dependent?
The scientific study of human populations size, density, distribution, movement, and birth and death rates
What is Demography?
Number of organisms รท Area occupied
What is Population Density Formula?
The term ecologist uses to describe the number of individuals moving away from a population
What is emmigration?
The growth rate proportional to population size
What is Exponential Growth?
It does not depend on population density
What is Density-Independent?
The change from high birth and death rates to low birth and death rates
What is Demographic Transition?
many offspring, little parental care
What is the r-strategy?
a technique where individuals or elements are selected from a population purely by chance, ensuring each has an equal probability of being chosen
What is random sampling?
The maximum number of individuals an environment can support
What is carrying capacity?
What case study is and example of this?
What is the case study of Isle Royale?
When birth + immigration = death + emigration, resulting in stable population size
What is Zero Population Growth (ZPG)?
Dispersion
What is the pattern of spacing of a population within an area?
produces less offspring and nurtures them
What is the k-strategy?
What are the growth rate factors?
What is natality, emmigration, and immigration
Any resource that limits population growth
What is Limiting Factors?
The distribution of males and females across three age groups: pre-reproductive, reproductive, and post-reproductive
What is Age Structure?
The birth rate of population in a given year
What is natality?
A population the exhibits growth that results in an S-shaped graph
What is the logistical growth curve?
What are the 2 types of growth?
What is Exponential Growth and Logistic Growth
Why did the case study of Isle Royale happen?
What is the increase in wolves is happening because there are no predators to kill the wolves. The moose population started to decrease because the wolves started to eat them.
What are the four factors affecting human population
What is Agriculture, Domestication of animals, Medicine, and Shelter improvements?
Use the population density formula to complete this.
300 bears in 1500 square miles.
What is 0.2 bears per square mile?