Life: The Science of Biology, 10e - WH Freeman
Life: The Science of Biology, 10e - WH Freeman
Life: The Science of Biology, 10e - WH Freeman
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Chapter 54 | Ecology and the Distribution <strong>of</strong> <strong>Life</strong> 24(A)(B)Area phylogenySiberianpeninsulaNorthAmericaOriginin NorthAmericaCentral AsiaMiddle East andCentral AsiaNorth AfricaHorses speciated as theymoved from Asia to Africa.South West AfricaOnager(E. hemonius)Speciation <strong>of</strong> zebrashas taken placeentirely in Africa.East AfricaEastern andSouthern AfricaPhylogenetic treeThis lineage leads to themodern horse (E. caballus).African ass(E. africanus)Przewalski’s horsePrzewalski’s Przewalski’s horse(E. horse przewalskii)AncestralhorseOnagerAfrican assMountain zebraGrévy’s zebra(E. grevyi)Grévy’s zebraPlains zebra3.9 3 2Million years ago1 0Mountain zebra(E. zebra)Plains zebra(E. quagga)54.14 Phylogenetic Tree to Area Phylogeny (Page 1144)LIFE <strong>The</strong> <strong>Science</strong> <strong>of</strong> <strong>Biology</strong> 10E SadavaSinauer AssociatesMorales StudioTime (Mya)Figure 54.14 Date 07-13-12I used various references to draw in the land bridge.Not sure how much <strong>of</strong> this land bridge to show going east. I faded it out (?)© 2014 Sinauer Associates, Inc.
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