Population basics
This term describes a group of individuals of the same species in one area.
What is a population?
Movement of individuals between populations.
What is dispersal?
The study of population structure and changes over time.
What is demography?
This graph shows survival over time.
What is a survivorship curve?
Deer gathering around food patches shows this dispersion.
What is clumped dispersion?
This refers to the number of individuals per unit area.
What is population density?
The pattern of spacing among individuals in a population.
What is dispersion?
A table showing survival and reproduction rates by age.
What is a life table?
Type I species show this survival pattern.
What is high survival early, low survival late?
A species with wide tolerance will have this type of range.
What is a large range?
A group of spatially separated populations connected by movement.
What is a metapopulation?
This type of dispersion occurs when resources are patchy.
What is clumped dispersion?
Two key variables tracked in demography.
What are birth rate and death rate?
Type III species show this pattern.
What is high early mortality?
If deaths exceed births, the population will do this.
What is decrease?
This describes the geographic area where a species is found.
What is species range?
This dispersion pattern is often caused by territorial behavior.
What is uniform dispersion?
This factor includes predation, disease, and competition.
What are biotic factors?
Type II species have this mortality pattern.
What is constant mortality rate?
Frogs moving between ponds represent this concept.
What is a metapopulation (or dispersal)?
Name two factors that increase population size.
What are births and immigration?
Random dispersion occurs when this is lacking.
What are strong interactions between individuals?
This includes temperature, water, and climate.
What are abiotic factors?
Give an example of a Type III organism.
What are fish, plants, or insects?
Explain why clumped dispersion is most common.
What is because resources are unevenly distributed and social behavior groups individuals?