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Ecology 2

TermDefinition
Bioaccumulation/Biomagnification When toxins increase in the tissues of organisms in the higher levels of a food chain.
Biodiversity The concept that more species in an ecosystem produces stability
Biosphere The portion of Earth where all living things exist (in air, water or ground)
Climax Community A mature stable community that is the final state of ecological succession, lasting until a major change happens
Commensalism Symbiotic relationship between two different organisms when one organism benefits and the other is unharmed
Community Different populations of organisms interacting with each other in the same area
Ecological succession The progression from pioneer organisms in an area to the climax community
Ecology The study of the interactions of organisms and their environment
Energy pyramid The concept that as you move up the food pyramid, the amount of energy available to organisms decreases due to loss of that energy to the environment as HEAT
Host Organism on which another parasitic organism lives and gets nutrition
Limiting factors BIOTIC (living) or ABIOTIC (non-living) things in an environment that cause a population to not increase in number
Mutualism When two different organisms live together for the benefit of both
Nutrient cycles The flow of substances necessary for life through an ecosystem
Parasite Obtains nutrients from a host at the host's expense
Pioneer species An animal or plant species such as lichen that is the first to arrive in a depleted environment
Population All individuals of the same species
Water cycle The pathways of water through an ecosystem consisting of evaporation, condensation, precipitation and run-off
Created by: hhazzard
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