Biodiversity

Nature's Services:
Ecosystems Are More Than Wildlife Habitat
When you step outside, whether heading for your car or for a walk around the block, you expect to be able to breathe the air. When planting flowers in the window box or tomatoes in the raised bed in your backyard, you expect those plants to grow, flower, and produce seeds or fruit. When perusing the grocery shelves, you expect to find fresh produce, and affordable fish and meat. When you turn on the tap, you expect to be able to drink the water.
Ecosystem services are the processes through which natural ecosystems, and the plants, animals and microbes that live in those environments, sustain human life. Ecosystem services produce goods, timber, and fibers, medicines and fuels. Ecosystem services even conduct life-support activities, like filtering water and recycling all kinds of wastes. The natural services that for millennia have purified the water and air, supported the growth and reproduction of food plants, controlled pests, and even moderated the weather and its impacts are declining rapidly. Land clearing for agriculture, industry and mining, and development is affecting ecosystems worldwide. As habitats become fragmented, with only pockets left here and there, the services those natural systems provide become less effective.
Tom Lovejoy, Chief Biodiversity Advisor, The World Bank, says other natural services, like waste decomposition and flood control, are often overlooked. Technology may duplicate these services temporarily, but it's doubtful that technological advances will be able to continually compensate for the large-scale loss of natural services. Although it is difficult to put a price tag on a wetland, forest, or river, the "price" for failing to protect or nurture these natural services could be daunting. As we populate the planet, nature's services will become even more essential to humans and worthy of protection from even those who never leave the cities.
Wetlands: Water...