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Ch 5 Biodiversity and Consveration

Mr. Mac : Mr. Mac
Across
The use of living organisms to detoxify and restore polluted and degraded ecosystems
includes the variety of habitats, communities, and ecological processes in the living world
species moved by humans to new geographic areas, either intentionally or accidentally
invasive species species intro to ecosystem accidentally or purposefully that disrupt native species & ecosystems No natural predators = few limiting factors This leads to unchecked growth.
Increasing concentration of a harmful substance in organisms at higher trophic levels in a food chain or food web Example: DDT
The practice of harvesting or hunting to such a degree that the small number of remaining individuals may not be able to sustain the population
Materials or substances such as minerals, forests, water, and fertile land that occur in nature and can be used for economic gain
refers to the total number of genetic characteristics in the genetic makeup of a species. It is distinguished from genetic variability, which describes the tendency of genetic characteristics to vary.
Breakup of a habitat into smaller pieces, usually as a result of human activities.
The number and relative abundance of different species in a biological community.
Any natural resource (as wood or solar energy) that can be replenished naturally with the passage of time Example: Pine tree
Down
Native, local; natural, specific to, or confined to a particular place
An approach to restoration ecology that uses organisms to add essential materials to a degraded ecosystem
extinction A term that typically describes a species that no longer has any known living individuals.
The gradual process of species becoming extinct
The amount of biological or living diversity per unit area. It includes the concepts of species diversity, habitat diversity and genetic diversity.