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drs-ecol1-gg21

Ecology Vocab 1

TermDefinition
BIOLOGY Bio - life ology - study of A study of living things
ORGANISM Scientific word for living things
HABITAT An environment that provides the things a specific organism needs to live, grow, and reproduce.
BIOTIC FACTORS Are the parts of a habitat that are living or once living and interact with an organism.
ABIOTIC FACTORS Are the non-living parts of an organism's habitat. Water
SPECIES A SPECIES is a group of organism's that can mate with each other and produce offspring that can also mate and reproduce. Praire dogs
POPULATION All the members of one SPECIES living in a particular area. 1000 praire dogs
COMMUNITY All the different POPULATIONS that live together in an area. Praire dogs, snakes, eagles
ECOSYSTEM The COMMUNITY of ORGANISM's that live in a particular area, along with their non-living environment. PRAIRE
ECOLOGY The study of how ORGANISM'S interact with each other and with their environment.
BIRTH RATE The number of births per 1000 individuals for a given time period. 32 eggs a year by a female alligator
DEATH RATE The number of deaths per 1000 individuals for a given time period. 8 deaths of alligators a year.
IMMIGRATION Moving into a population. An antelope moving in with a new herd.
EMMIGRATION Leaving a population. Antelope moving from the herd to find better food and becoming permanently separated from the herd.
POPULATION DENSITY The number of individuals in an area of a specific size. POPULATION DENSITY = # OF INDIVIDUALS / UNIT AREA
LIMITING FACTOR An environmental factor that causes a population to stop growing or decrease in size. SCARCE FOOD
CARRYING CAPACITY The largest population that an area can support. If there is not enough food and water in a habitat the # of giraffes would be ten and 3 more would kill them.
Created by: ggamino289
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