KP361 Lecture 7: BI301 Slide Set 7
12 Jan 2016
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Document Summary
Slide set 7: patterns of biodiversity 1: gradients in biodiversity, Spatial gradients in diversity: latitudinal gradients (gradients as you move towards the poles from the equator) Gradients in size of range: altitudinal gradients. Latitude gradients: richness: more species around the equator, fewer as you move toward either pole, patterns in taxon richness important factors include: Topography (mountains or low lands or swamps, etc) While overall patterns are similar, rates of change of species. Landmass configuration richness varies with taxonomic group: many different types of organisms show gradients in species richness with latitude: Lizards (graph c) graph looks at northern hemisphere only. Changing of landmass configuration changed the climates in those landmasses (tropical area smaller, etc) change in latitudinal gradients. Latitudinal gradients: butterflies: latitudinal gradients in swallowtail butterflies for the americas, for. Latitudinal gradients: lizards: overall, global patterns just now being described.
