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Topic 4

TermDefinition
Niche How an organisms makes its living and interacts with the biotic and abiotic factors in its habitat
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 or nutrients
Symbiosis Any relationship in which two species live closely together and that benefits at least one of the species
Commensalism A type of symbiosis between two species in which one species benefits and the other species is neither helped or harmed
Mutualism A type of symbiosis in which both species benefits and the from living together
Parasitism A type of symbiosis in which one organism lives with, on, or in a host and harms it
Succession The series of predictable changed that occur in a community over time
Pioneer Species The first species to populate an area during succession
Biodiversity The number and variety of different species in an area
Keystone Species A species that influences the survival of many other species in an ecosystem
Extinction The disappearance of all members of a species from Earth
Invasive Species Species that are not native to a habitat and can out-compete native species in an ecosystem
Ecosystem Services The benefits the humans derive from ecosystems
Ecology The study of how organisms that live in a particular area, along with their nonliving environment
Natural Resource Anything naturally occurring 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 degreased or destroyed ecosystem recover from damage
Created by: user-1870845
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