Module 2 Test Flashcards
(109 cards)
the study of interactions between members of a species and their environment
ecology
What are the 3 main characteristics of a population
- range
- dispersion
- change in size overtime
all places members normally live
- large
- small (endemic)
- sub populations
- metapopulations
-expanding
range
how individuals are arranged in a population
dispersion
What are the different ways individuals are dispersed
- clumped
- uniform
- random
- growing
- getting smaller
- exponentially grow
- logistic growth
change in size overtime
What is the exponential growth equation?
DN/Dt = r (max) N
What is the logistic growth equation?
DN/Dt = r (max) [(K-N)/K]
N
population size
DN/Dt
change of population growth
K
carrying capacity
all population size
independent
larger populations
dependent
What is at carrying capacity?
equilibrium
collection of populations
metapopulations
- people in a classroom
- crops so they grow efficiently
- equally sharing resource
uniform
- their are no resources in between
- could be hiding from predators
clumped
- indication of how much resources is there
- the number of individuals that the level of resource can support
- “just getting by”
carrying capacity
competition between members of one species
intraspecific
competition between members of two species
interspecific
What are the possible outcomes of interspecific?
- species 1 wins
- species 2 wins
- both coexist
What does [(K-N)/K represent?
- density dependent
- intraspecific competition
species 1 and 2 are both affected negatively
interspecific competition
species one is affected positively and species two negatively
predation, parasitism, and herbivory