BIO120H1 Lecture 14: Lecture 14 - Climate _ biomes, change along transects, species ranges

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19 Feb 2016
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BIO120H1 Full Course Notes
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BIO120H1 Full Course Notes
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Lecture 14 - climate & biomes, change along transects, species ranges: climatic factors and geographic distribution of biomes, sources of climate variation beyond the basic latitudinal belts. General trends of terrestrial vegetation with climatic variables. Vegetation growth (primary productivity) increases with moisture and temperature. Different part of the world has different climate - convergence. Vegetation stature also increases so regions with certain combinations of moisture and temperature develop predictable, characteristic types of vegetation = biomes (largest unit of biological association) Terrestrial climax communities with wide geographic distribution. Concept is useful for describing in broad terms. Of same type from different areas will exhibit variations in exact species present. Biome types depend on combination of temperature and precipitation. When it"s cold, temperature doesn"t matter much. Latitude mostly determines major terrestrial biomes; learn classification in sfe. Additional climate patchiness overlaid on basic latitudinal belts.