NOTES 2 Flashcards
group of freely interbreeding individuals of the same species
present in a specific geographical area at a given time
POPULATION
the study of how populations interact with their
environment
POPULATON ECOLOGY
designates a near balance of births and deaths
ZERO POPULATION GROWTH
is the physical environment or specific place where an organism
lives out its life
HABITAT
Factors that are relatively constant and limits the population to a fairly constant size
LIMITING FACTOR
states that growth is not controlled by the total amount of resources available, but by the scarcest resource.
LIEBIG’S LAW OF THE MINIMUM
Maximum number of individuals of a species or population that a given environment can sustain.
CARRYING CAPACITY
is the role and position a species has in its environment - how it meet its needs for food and shelter, how it survives, and how it reproduces
NICHE
two or more populations of different species occupying the same geographical area
COMMUNITY
INDIVIDUALS IN A SPECIES POPULATION INTERACT AMONGST THEMSELVES - INTRASPECIFIC INTERACTIONS AS WELL AS WITH INDIVIDUALS OF OTHER SPECIES POPULATION
SPECIES INTERACTION
the study of how different species occupying the same geographical area
COMMUNITY ECOLOGY
Communities are assemblages of many different species occupying the same geographical area
COMMUNITY STABILITY
starts from distributed areas
example: abandoned farm land or storm ravaged land
SECONDARY SUCCESSION
A directional, cumulative change in the species that occupy a given area, through time.
ECOLOGICAL SUCCESSION
Starts from barren ground
example: new islands or deglaciated areas
PRIMARY SUCCESSION
