Domestication Flashcards
What is domestication?
to adapt to life in intimate association with and to the advantage of humans
What does it mean for an animal to be wild?
living in a natural, undomesticated state
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Does being familiar with humans mean they aren’t wild?
No, it does not remove their wild nature
What is a feral animal?
Ancestors had been domesticated but now have reverted and live in a wild state
When an animal becomes feral, does that mean they are un-domesticated?
No
What is a tame animal?
an animal relatively tolerant of human presence
What is an introduced species?
a plant or animal that is not native to a specific location, and is believed to be beneficial to the environment, human economy and/or human health
What is an invasive species?
a plant or animal that is not native to a specific location; and has a tendency to spread, which is believed to cause damage to the environment, human economy and/or human health
What are the characteristics of a domesticated animals?
bred in captivity for human benefit, complete control of breeding/reproduction, control territory, control food supply
How do domesticated animals benefit humans?
food, companionship, or work
What does it mean for humans to have control of breeding of domesticated animals?
humans control breeding and therefore the traits of the animals
What does it mean for humans to control the territory of domesticated animals?
control where the animal lives
What does it mean for humans to control the food supply of domesticated animals?
control their nutrition and stabilizers of food economy
What was vital to the development of human civilization? How?
domestication; increase quantity of food available, decrease labor required, draft, development of market economies (bartering), primary factor in warfare
How many mammalian species are there?
5,488
How many bird species and sub species?
10,000 species; 22,000 sub species
How many domesticated species are there? Why?
15-20; domestication takes a long time, the animals already domesticated were more common in areas compared to others, not all animals benefit humans
What are the criteria for domestication?
diet, growth rate, breed in captivity, disposition, less likely to panic, size, social hierarchy
Why is diet a criteria of domestication?
it’s easier if they eat a variety of things
Why is growth rate a criteria of domestication?
want them to mature rapidly
Why is being able to be bred in captivity a criteria of domestication?
reproduction can be controlled, and thus traits can be controlled
Why is disposition a criteria of domestication?
strong nerves, have to have right temperament to humans
Why is being less likely to panic a criteria of domestication?
important to not panic in human presence
Why is size a criteria of domestication?
smaller animals are easier to handle, size is important for their use
Why is social hierarchy a criteria of domestication?
they have to understand that humans are the leaders
How are there so many differences within an animal species if they came from the same ancestors?
variation among genes is then bred, the environment, lose genes not needed over time (like how their brain decreases in size as they become domesticated)
When were dogs domesticated?
10,000-12,000 years ago
What animal were dogs domesticated from? From where?
Wolves (Arabian, Chinese, Indian, European)
What are the two theories of dog domestication? Which is most likely?
1-Humans domesticated wolves by picking them and taking them home and overtime breeding certain traits
2- Wolves domesticated themselves by approaching human hunter-gatherers for food
Theory 2 is most likely
What animal was the best at being domesticated? Why?
dogs; genomes
What are the stages of dog domesitcation?
1- self domestication 2- strict captivity (limit breeding) 3- intentional breeding 4- trait standardization 5- eliminate wild species (genes)
What does limiting breeding/strict captivity mean?
limit unintentional breeding, like what is done in the wild
What is intentional breeding?
breeding for specific traits, can use inbreeding
What is trait standardization?
fixing the genomes (such as black body dog x white face dog = black body white faced dog), inbreeding is used
What animals were used in the domestication study Who did it?
silver foxes; Dmitri Belyaev