1013 GENVI Biodiversity

• IUCN: International Union for the Conservation of Nature.
• There are around 8.7 million species of plants and animals in existence.
• 1.2 million species have been identified, and most are insects.
• Evenness: Similar abundance for each species present. Greatest evenness as the two populations have similar abundance.
• Temporal pattern: over time, organisms that

  can adapt will survive, perpetuate, and even give rise to new species, whereas those that cannot adapt die and become extinct.
• Era: Cenozoic

  Period: Quaternary (Rise of Man), Tertiary (Rise of Mammals)
• Era: Paleozoic 1

  Period: Permian (Reptiles), Pennysylvanian (Insects), Mississipian (Crinoids), Devonians (Seed plants, cartilage fish)
• Era: Paleozoic 2

  Period: Silurian (Land animals), Ordovician (Bony fish), Cambrian (Invertebrates, Brachiopods, Trilobites), Precambrian (Bacteria, Algae, Jelly)