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drs-ecol1-gv10

ecology vocab #1

TermDefinition
biology bio-life ology-study of study or living things
organism scientific word for living thing.
habitat an environment that provides the things a specific organism needs to live, grow, and reproduce. EXAMPLE: forest habitat or a cave habitat.
biotic factor a living or once living part of an organism's habitat. EXAMPLE: birds, plants, trees.
abiotic factor a nonliving part of an organism's habitat. EXAMPLE: water, rocks, dirt, or soil.
species a group of similar of similar organisms that can mate with each other and produce off spring that can also mate and reproduce. EXAMPLE: a polar bear and a grizzly bear can mate and reproduce.
population All the members of one species living in the same area. EXAMPLE: Prairie dogs in the Nebraska town.
community All the different populations that live together in a particular area. EXAMPLE: prairie dogs, hawks, snakes, and grasses live on the prairie.
ecosystem The community of organisms that live in a particular are, along with their nonliving environment. EXAMPLE: deserts, oceans, ponds, and forests.
ecology The study of how organisms interact with each other and with their environment. EXAMPLE: population ecology, community ecology and behavioral ecology.
birth rate The number of births per 1,000 individuals for a given time period. EXAMPLE:Birth rates in other country's are either lower or higher.
death rate The number of deaths per 1,000 individuals for a given time period. EXAMPLE: Death rates are different in other country's, they compare a lot.
immigration Moving into a population. EXAMPLE: Deer in immigrated from Minnesota, Wisconsin,and Missouri, to Iowa.
emigration Leaving a population. EXAMPLE: deer from Minnesota moved to Iowa.
population density The number of individuals in an area of a specific size. EXAMPLE: Divide population 1,000,000 by area 2000 sq kms equals 500 people per sq km
limiting factor An environmental factor that causes a population to stop growing or decrease in size. EXAMPLE:weather conditions, space, food, and water.
carrying capacity The largest population that an area can support. EXAMPLE: in a giraffe field if the max capacity is 10 giraffes than it wont hold 15 of them.
Created by: gvillarreal142
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