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Sustainability Plan / Biodiversity / Definitions

Biodiversity. As expressed by Edward O. Wilson:

  • Biodiversity maintains the integrity of life known on earth;

  • Through medicine, agriculture and economics, biodiversity provides a range of genetic, biochemical, and physical properties of plant and animal life that are advantageous to human welfare;

  • Biodiversity is worthy of preservation because it represents human kinship through common living organisms; and

Biodiversity is a source of national heritage, giving historic importance to place, such as the San Francisco bioregion with its distinctive assemblage of species of plants and animals.

Integrated pest management. An scientifically based strategy that incorporates ecological factors, such as natural enemies, weather, and crop management to reduce the amount of chemicals used to control pests.

Invasive species. A species that invades natural habitats and reduces biodiversity.

Master Plan Recreation and Open Space Element - Policy 13. A set of objectives and policies in the Open Space Element of the Master Plan of the City and County of San Francisco, which guides current and future city practices and actions. Policy 13 addresses the preservation and protection of significant natural resource areas within the City.

Sensitive species. Plant and animal species or sub-species for which there is a concern for population viability, including plant and animal species that are found on the federal list of threatened and endangered species, the State Department of Fish and Game’s list of California listed species, the California Native Plant Society's inventory of plants, species that could become candidates for listing, and locally rare species.

Significant natural areas. Sites that support native species or natural communities, contain high species or habitat richness, are remnants of an original natural landscape, or are adjacent to other natural resource areas.

Significant natural areas management plan. A program adopted by the Recreation and Park Department to protect significant natural areas.