Exam 2: Concept Map #1

Key words of concept map #1 on Environmental Science Exam 2

20 cards   |   Total Attempts: 182
  

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Species Diversity
The number and relative abundance of a species in a community.
Ecological Diversity
The variety of biological communities or ecosystems in a given area.
Genetic Diversity
Genetic variation within a population or species.
Conservation
The protection, preservation, management or restoration of wildlife and resources such as forest, soil, and water.
Flagship Species
Species used to motivate people to contribute to conservation (Giant Panda, whales)
Umbrella Species
Umbrella species = require large blocks of land à preserving the umbrella, preserves the community (Example: N. spotted owl, tigers)
Restoration
Act of restoring/repairing the environment (wildlife, resources) to its natural state of stability.
Habitat Destruction
Destruction of wildlife habitats by increasing pressure for land by fast-growing human populations, pollution and over-exploitation.
Invasive Species
Organisms that thrive in new territory where they are free of predators, diseases, or resource limitations that may have controlled their population in their native habitat.
Human Population Growth
Rate at which global population is growing.
Pollution
Pollution is the introduction of contaminants into an environment that causes instability, disorder, harm or discomfort to the physical systems or living organisms they are in.
Overharvest
1) Harvesting a resource until existence = threatened2) Harvesting too much of a resource at one time, excess resource goes unusedExample: Overharvesting of fish
Extinction
Condition of being extinguished, or no longer existing.
Biodiversity
The genetic, species, and ecological diversity of the organisms in a given area.
Benefits (of biodiversity)
1) Food2) Medicinal value3) Ecosystem stability4) Aesthetic and cultural benefits