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Adaptation to the anthropogenic environment Domestication and Breeds
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The growing human population has changed planet Earth’s environment.
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Humans are increasingly exerting control over Earth’s fresh water through reservoirs, dams, and canals. (Science 7 October 2011, 334 p34-35.)
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As atmospheric CO2 increases, oceans become more acidic. (Science 7 October 2011, 334 p34-35)
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Science 7 October 2011, 334 p34-35)
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As human population increases, chemical pollutants accumulate in the atmosphere (Science 7 October 2011, 334 p34-35)
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Humans change the Earth’s land. For millennia humans have chopped down forests and moved rock and soil for agriculture and pastureland and construction. (Science 7 October 2011, 334 p34-35)
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Humans change the Earth’s land. For millennia humans have chopped down forests and moved rock and soil for agriculture and pastureland and construction. Human activity increases erosion. (Science 7 October 2011, 334 p34-35)
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Average species abundance of 3000 wild populations declined 40% between 1970 and 2000. (Science 7 October 2011, 334 p34-35)
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Relative biomass of humans, domestic mammals, and wild mammals. (Science 7 October 2011, 334 p34-35)
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Giant cave bear
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House mouse
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American cockroach
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Domestication (10,000 – 5,000 years) of: -Mamals -Birds -Fish (carp, catfish, salmon) -Insects (honeybees, silk moth) -Plants -Molds (button mushroom, yeast) -Bacteria (yoghurt, cheese)
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Diamond Jared 2002) Nature vol 418.
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Fertile crescent is center of origin of: -Wheat -Barley -Peas -Sheep -Goat -Cows -pigs
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Wolf/Dog domestication as early as 50,000 yra
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A burial strongly suggesting domestication has been excavated in Israel and dated to around 12,000 years ago. This picture shows a human skeleton, the left hand over the skeleton of a small dog, the two of them buried at Mallaha, about 15 miles north of the Sea of Galilee.
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Lascaux cave France
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Heck cattle or Recreated Aurorch
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Domesticated cow milked in ancient Egypt
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Polish Konik
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Re-created Tarpan horse.
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Przewalski horse: truly wild horse.
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Horses: Equus ferus subspcies: -Equus ferus cabalus (domesticated horse) -Equus ferus ferus or Tarpan horse: extinct but re-created from Polish konik horse. -Equus ferus przewalskii (only extant wild horse)
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Driscoll CA et al. (2009). Scientific American July 2009 p69-75.
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10,000 yra remains of mice in granaries
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Driscoll CA et al. (2009). Scientific American July 2009 p69-75.
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3,700 years ago Ivory cat statuette sculpted in Israel; suggests cats were a common sight around human settlements in the Fertile Crescent 3,600 years ago Artists paint domesticated cats from Thebes, Egypt. 2,900 years ago Cats become “official deity” of Egypt in the form of the goddess Bastet.
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Driscoll CA et al. (2009). Scientific American July 2009 p69-75
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Wichien-Maat siamese cat. Tamara Maew (1360-1767)
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Qualities for domestication: 1.The right diet 2.Fast growth & short birth spacing 3.Friendly disposition 4.Easy breeding 5.Respect for hierarchy 6.Won’t panic
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Wild grass Teosinte
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Teosinte Primitive corn Modern corn
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Wheat
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Wheat(tarwe)Triticum aestivum Barley(gerst)Hordeum vulgarus Rye(rogge)Secale cereale Oats (haver)Avena sativa
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Barley Hordeum vulgarus Rye Secale cereale Wheat Triticum aestivum Oats Avena sativa
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Einkorn
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Domestication changes the genetic make-up of species: Human control of: -Growth -Size -Behavior -Breeding
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Jacob sheep
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Merino sheep
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Girgantaria goat
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Angora goatMakhor goat
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Jacobin pigeonChinese owl pigeon
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Ghent cropper pigeon
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Texas Longhorn Charolais Droughtmaster (Australia) Senepol (St.Croix)
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Miniature zebu cattle
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Miniature (toy) hereford
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Belgian draft horse and miniature horse (17”)
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