BIOL 202 Lecture Notes - Lecture 1: Species Richness, Serengeti National Park, Ecosystem Services
Document Summary
Identify common features of biogeographic patterns of species richness across taxonomic groups. Explain the three hypotheses for why the tropics have more biodiversity than temperate regions: describe the magnitude of human impact on ecosystems in terms of total npp used and the. Synthesize material from the semester to identify potential impacts of biodiversity loss. Global patterns of biodiversity: what are four contributing factors to global biodiversity patterns, climate, geographic area, evolutionary history. Isolation: comparison of figures of species distribution: Identify at least 2 commonalities across taxonomic groups as far as their species richness patterns. Latitudinal gradients are perhaps the best known biogeographical pattern. Divergent evolution on isolated landmasses leads to regional differences in species composition. Species may migrate or go extinct when long-separated continents come in contact: alfred. Russel walla(cid:272)e (cid:894)walla(cid:272)e"s li(cid:374)e(cid:895: describe the relationship between species richness and productivity. Strong positive correlation between species richness and productivity. When increase in productivity there is an increase in species richness.
