BIOL 1001 Chapter : Chapter 30 Lecture Notes
Document Summary
Genetic diversity: the success and survival of a species depend on the variety and relative frequencies of different alleles in the gene pool of a species. Species diversity: the variety and relative abundance of the different species that comprise a community are important for the integrity and survival of the community. Ecosystem diversity: ecosystem diversity includes the variety of both communities and the nonliving environment on which the communities depend: 30. 2 why is biodiversity important, ecosystem services: practical uses for biodiversity. Ecosystem services are the processes through which natural ecosystems sustain and enhance human life. Extracting medicines from plants: ecosystem services benefit people indirectly. Indirect ecosystem services have great impact on human welfare, and include: Recreation: 30. 3 is earth"s biodiversity diminishing, extinction is a natural process, but rates have risen dramatically. The fossil record indicates that extinctions occur naturally at a very slow rate, called the background extinction rate.
