Survey
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
Biodiversity 04 Significant ideas: ◦ Ecosystem stability, succession and biodiversity are intrinsically linked -“The variety of life in all its forms, levels and combinations” -Includes: ecosystem diversity, species diversity, and genetic diversity • Scientists have identified more than 2 million species. Tens of millions -- remain unknown •The tremendous variety of life on Earth is made possible by complex interactions among all living things. There are 3 components of biodiversity Diversity of genes Cheetahs are on the edge. Approximately 10,000 remain in Africa. Less than 300 remain isolated in Iran. other species are so scarce that they only survive in captive breeding programs There are 3 components of biodiversity Diversity of species in communities. • Product of two variables #of species and relative proportions Hoary Bat Iwi Kahuli There are 3 components of biodiversity Habitat • Variety habitat in an ecosystems Each one is different, with its own set of species living in it. Desert Tropical Rain Forest tiaga Biodiversity has Intrinsic Value Intrinsic Value = Something that has value in and of itself Source: Burmbaugh © AMNH-CBC Biodiversity also has Utilitarian Value Utilitarian Value = the value something has as a means to another’s end. Utilitarian values include: • Goods • Services • Information What do we get from biodiversity? Oxygen Food Clean Water Medicine Aesthetics Ideas Should we be concerned about biodiversity? What we know: The Earth is losing species at an alarming rate Some scientists estimate that as many as 3 species per hour are going extinct and 20,000 extinctions occur each year. when species of plants and animals go extinct, many other species are affected . Threats to biodiversity HIPPO Dilemma Habitat Loss Introduced Species Pollution Population Growth Over-consumption Biodiversity Hotspots Provide formal documentation of the world’s known biodiversity (living or dead) Museums, Zoos, Arboreta, Botanical Gardens, Public and Private Research Collections Education Research Species distributions Species classification Conservation and recovery programs