phil. 2
is a group of similar species living in a certain place at the same time
POPULATION
is a single living individual
organism
refers to the number of individuals in a population
Size
Factors that contribute to the size of population
Natality - number of species that are born
Mortality - number of species that die
Emigration - number of species that leave the land
Immigration - number of species that entered
number of species that die
Mortality
number of species that are born
Natality
number of species that entered
Immigration
number of species that leave the land
Emigration
describes the number of individuals of a species living in a particular area
DENSITY
refers to the arrangement of individuals in a population in a particular space
Distribution
Organisms are spread throughout the area without an overall pattern or specific order
Random distribution
Organisms are evenly distributed over an area
Uniform distribution
Organisms are concentrated or clustered in groups
Clumped distribution
it depends on the balance of mortality and natality.
Population growth
they make a substantial contribution to population growth
Immigration and emigration
is the inverse of biotic potential which means the mortality rate opposes the birth rate
Mortality
It results in an increase in mortality and a decrease in natality.
ENVIRONMENTAL RESISTANCE
is the set of factors that reduce or limit the biotic potential of an organism
ENVIRONMENTAL RESISTANCE
it includes abiotic and biotic factors.
ENVIRONMENTAL RESISTANCE
is the number of individuals in a population that the environment can support over an indefinite period of time in terms of food, space and shelter.
Carrying capacity
refers to any factor that slows down or stops population growth. It determines the carrying capacity.
limiting factor
These are abiotic factors that influence the population amount of available air, clean water, extreme conditions, and pollutants are examples of it
Density-independent limiting factors
These factors are directly associated with living things
Density-dependent limiting factor