supporting services - ecosystem services that allow for the existence of all other ecosystem services, primary production - synthesis of organic compounds from carbon dioxide, nutrient cycling - process by which nutrients are cycled through the ecosystem, water cycle - one of the systems of an ecosystem were water cycles from the atmosphere to the ground and back, provising services - food, medicine, natural resources (produce energy and water), regulating services - pollination, water purification, protection from natural disasters, erosion control, climate regulation, cultural services - benefits people obtain through their experiences with the ecosystem such as recreational activities and artistic appearance of the environment, biodiversity index - number of species divided by the number of individuals, pollution - contamination of the environment with substances that are harmful to life, invasive species - organism introduced into an ecosystem that spreads on its own and competes with the native species for spaces, food, light, nutrients, habitat destruction - cutting down forests, draining bodies of water, changing a habitat so it's no longer usable by animals, overexploitation - overuse of an animal and plant species by humans for purposes including food, medicine, or clothing, climate change - changes in climate patterns over time, restoration - planting trees to replace those that have been cut down or burned, reclamation - the process of restoring land disturbed by mining, mechanical controls - use of physical means such as fences, barriers, wedding, and trapping, chemical controls - use of chemicals, such as herbicides and pesticides, biological controls - use of species to combat an invasive species, US Clean Water Act - regulates sources of water pollution, sustaining populations - hunting and fishing regulations in the US to keep populations at sustainable levels, main cause of climate change - increase in greenhouse gasses in the atmosphere, reduce climate change by_____ - change from fossil fuiles to renewable sources of energy such as solar power, wind, and geothermal power,

Biodiversity in Ecosystems 2

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