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Science Topic 6

Populations, Communities, And Ecosystems

TermDefinition
niche includes how an organism obtains its food, the type of food the organism eats, and what other organisms eat it
competition The struggle between organisms to survive as they attempt to use the same limited resources in the same place at the same time
predation an interaction in which one organism kills another for food and nutrients
symbiosis any relationship in which two species live closely together
commensalism a type of symbiosis between two species in which one species benefits and the other species is neither helped nor harmed
mutualism a relationship in which both species benefit
parasitism a relationship that involves one organism living with,on,or inside another organism and harming it
interactions different interactions include predation and competition
pioneer species the first species to populate an area
colonize populate; grow a city
dominate rule over; be number 1
succession the series of predictable changes that occur in a community over time
biodiversity the number and variety of different species in an area
keystone species a species that influences
extinction a species has completely died out
invasive species non-native species
value the worth and role of a species or organism in an area
economic The wealth and resources of a country or region, especially in terms of the production and consumption of goods and services
ecosystem services the benefits humans receive from ecosystems
ecology The study of how organisms interact with each other and their environment
natural resource anything naturally occuring in the environment that humans use
conservation The practice of using less of a resource so that it can last longer
sustainability The ability of an ecosystem to maintain biodiversity and production indefinitely
ecological restoration The practice of helping a degraded or destroyed ecosystem recover from damage
regulation The act of assigning rules or procedures that explain how something should be done
Created by: AndrewLesicki
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