C4.1 Flashcards
Define population.
State what isolates populations of the same species.
Define sample.
Outline the purposes of sampling a population.
Define sampling error.
Describe the need for randomness in sampling procedures.
Compare sampling methods for sessile vs motile organisms.
Outline the use of quadrat sampling to estimate the population of a sessile organism.
Describe the method of capture- mark- release-recapture sampling to estimate the population of a motile organism.
List assumptions made about the population when using mark-recapture methods to estimate population size.
Outline use of the Lincoln index to estimate population size from mark-recapture data.
Define carrying capacity.
List examples of resources that may limit the carrying capacity of a population.
Outline population size control as an example of a negative feedback loop.
Distinguish between density- dependent and density- independent factors that control population size.
List examples of density- dependent factors that maintain population carrying capacity.
Outline examples of density- independent factors that maintain population carrying capacity.
State that species have the ability to produce more offspring than the environment can support.
Outline conditions in which populations can grow exponentially.
Explain the reasons for the pattern of sigmoid population growth curve.
Sketch and annotate a graph of the sigmoid and exponential growth curves.
Outline the use of a logarithmic scale when plotting change in population over time.
Outline a method for monitoring the population of yeast or duckweed over time.
Use data of yeast or duckweed population over time to compare observed and expected population growth curves.