GEOB 102 Lecture Notes - Lecture 16: Species Richness, Species Evenness, Archaea
17 Apr 2016
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GEOB 102 Full Course Notes
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Biodiversity: deiniion- from the internaional convenion on biodiversity. The variability among living organisms from all sources and the ecological complexes of which they are a part. This includes diversity within species, between species, within communiies, ecosystems and landscapes: includes diversity of habitat and niches. Around 1. 45 million species known to western science. Esimates of 4-30 million species: recent "best" esimate is 8. 7 1. 3 million. 1 million in animal kingdom(75%: insects); 42,300 vertebrates, the remaining are invertebrates. New species ideniied yearly terrestrial invertebrates (e. g. insects), soil and subterranean organisms freshwater and marine ish and other organisms. New organisms that will take decades to classify. New species of primate in 2009: measuring biodiversity, species composiion. List of all species(usually in deined area: species diversity - 2 major components. Organized based on size, reproducion: species richness. The number of species per unit area(a count: species evenness. Distribuion of individuals among species = relaive abundance (a measure of equitability) e. g. analysis of two gardens:
