Studied by 4 peopleViruses
________ at minimum have: nucleic acid (DNA + RNA) and protein coat (capsid)
Small organisms
________- shorter generation times.
population ecology
study of intraspecific interactions
Principle of allocation
________: "more energy for on function= less energy for other function.
population ecology
the study of intraspecific interactions
intraspecific interactions
organisms interacting with members of the same species in relation to environment
density
the number of individuals per unit area/volume
dispersion
pattern of spacing among individuals in the population
ex
counting the number of oak trees in 100mx100m plots in Troy, then calculate average in the city
Mark-recapture
mark individuals from a sample of the population, release back into the population
3 types of dispersion
clumped, uniform, random
Demography
study of statistics of populations and changes over time
Life tables
age-specific summaries of the survival pattern of a population from birth to death
cohorts
individuals of the same age
reproductive table
based on female cohorts producing offspring from birth to death
Generation time
amount of time between birth of individual vs its offspring
small organisms
shorter generation times
ex
bacteria dividing asexually by binary fission every 20 minutes
large organisms
longer generation times
Viruses at minimum have
nucleic acid(DNA + RNA) and protein coat(capsid)
exponential population growth(r-selected)
populations that have access to abundant resources and reproduce without limits
logistic population growth(k-selected)
populations with limited resources that cause populations to reach a plateau
the plateau in logistic population growth is also called
carrying capacity(K)
semelparity
a single, large reproductive effort
iteroparity
repeated reproduction
life history
traits that affect an organisms schedule of reproduction and survival
r-selected
reproductive success in uncrowded environments
k-selected
life history traits sensitive to population density
"principle of allocation"
more energy for on function = less energy for other function
reproductive diapause
allocation of energy from breeding to migration for survival
density-dependent factors
factors that affect populations as it becomes more dense
density-independent factors
factors that affect population size regardless of number of individuals
Note
Flashcard