GEL 107 Lecture Notes - Lecture 23: Allopatric Speciation, Phylogenetic Tree, Paleoecology
Document Summary
Change over time how animals adapt to their environment. How did herbivores evolve in response to the emergence of grasslands. More efficient morphology for running (because wide open area, cant hide anywhere) Competition between species for a resource until one species win out. Resulting in greater reproductive success over the other. Ecological biogeography explains present day biogeography in terms of ecological settings. Biomes and faunal provinces: regions with plants and animals possessing characteristic adaptations to that environment. Multituberculates: diverse from jurasic to late eocene. Plesiadaphids: diverse from paleocene to middle eocene. Rodents: first appear in early eocene, diversified rapidly. North america fauna that migrated to south america. Migration was asymmetric more migration and survival of na fauna to sa than sa to. Mutalism reefs appeared several times over the phanerozoic era created by coral and other reef building animals. Coral reef only reefs to take advantage of nutrient poor habitat. Mostly deposit feeders: trilobites, worms, inarticulate brachiopods.
