Animal Domestication

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Degree Evolutionary Biology of Animals (Animal Domestication) Karteikarten am Animal Domestication, erstellt von Alice Burke am 24/05/2013.
Alice Burke
Karteikarten von Alice Burke, aktualisiert more than 1 year ago
Alice Burke
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Domestication Steps - Zeuner 1963 Initial association with free breeding. Confinement. Confinement with breeding in captivity. Selective breeding and/or breed improvement.
Mutualism Mutualists relationships leading to COEVOLUTIONARY PROCESSES between human & domesticates
Livestock & Plant Domestication Initial management of morphology of wild plant/animal. Approx. 11,5000 ybp. Cyprus evidence with cattle, goats & pigs - more accurate dating with new tech.
Successful Domestication - Diamond, 1999 We've domesticated 15/148 non carnivorous mammals over 45kg. And 10/10,000 bird species.
Pre-adaptation to Domestication - Obstacles. Diamond, 2002 Diet not easily supplied. Growth rate was slow. Long birth spacing. Nasty disposition. Reluctance to breed in captivity E.g. wild elephant/panda - due to lack of dominance hierarchies. Tend to panic.
Start of Animal Domestication Neolithic period. 12,000-14,000 ybp. Improvement of human hunting skills. New tech - food storage etc. Competition between social groups/societies. N. Guinea had agriculture already - others followed. But dispersed domesticated animals were affecting the natural food chain. Hunter-Gatherers suffered due to food loss.
Climatic factors Early modern domestication only occured in areas already on the map. US& China witnessed an eco disastor - Iran/Iraq/Syria dried out totally and suffered soil erosiion.
Consequences of Neolithic Revolution Sedentarialism - Transition from nomadic lifestyle to 1 permanent location. Food supplies - political gathering/armies over food sources/stores. Epidemics - zoonotic diseases + high human densities. Human population genetics - led to genetic changes e.g. lactose tolerance. Diet - alcohol tolerance, saturated fat, salt. Eco. Disasters - high human density meant more heavily affected.
Ecological Disasters More heavily affected due to high human density, crop reliance, trading of animals etc., distribution of cattle
Domestic Goat Domesticated Capra hircus. Similar in size than ancestor - genetic drift. Hunter-gatherers would have killed larger ones, so intermediate size domesticated. More males died because they are bigger.
Domestic Chicken Gallus gallus. 4 orig. wild spp. of chicken. Actually from jungle fowl. Multiple material on history of dom. chicken. But all from ancestral app.
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