BIOLOGY 1B Lecture Notes - Lecture 2: Temperate Broadleaf And Mixed Forest, Northern Hemisphere, Biome
Document Summary
Biome: von humbolt: noticed that there was a change in vegetation (&species) in different elevations of same region, biomes, effects of elevation and latitude similar, as move up and down elevation, more icy. Ecotone - area of intergradation between terrestrial biomes and neighboring biomes. Disturbance - an event such as a storm, fire, or human activity that changes a community, removing organisms from it and altering resource availability temperate. Terrestrial biomes tropical forest: large proportion of biomass is in the trees, lots of animals are small and live in trees. Savanna: grasses survive here b/c below ground level, volcanic soils rich in nutrients, which is for herbivores to eat/reproduce, seasonal, biomass underground, lots of grazers. Impacted by agriculture and farmland conversion temperate broadleaf forest: mostly in northern hemisphere in europe, china, east coast; some in chile, South africa, australia: 70-200cm rain/yr, spread out rains and now in winters, winter temp.
