population dynamics Flashcards
what is population
a group of organisms living in a certain area
density def
number of individuals in a given area
measuring population
size density biomass and composition
r selection
reproduce and colonies quick
rapid increase and decline
carrying capacity
max population that can be supported
k selection
controlled slower growth need constant predictable conditions
composition def
the amount of measurable characteristics in a population/environment
distribution types
clumped: groups of individuals
uniform: individuals evenly spaced
random: irregular spacing
density equation
total individuals/ (area x number of quadrants)
population growth equations
(br - im) - (dr - em)
arial photography
drone takes photos to directly observe
quadrants
fame used to mark an area to sample non moving organisms
transects
a line through an area to determine changes in community composition
radio tracking
determining info from signals from devices attached to animals
gps
tracking animals via a satalite